CN118500774B - Heat dissipation efficiency detection method based on film boiling heat dissipation plate - Google Patents
Heat dissipation efficiency detection method based on film boiling heat dissipation plate Download PDFInfo
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- 238000003384 imaging method Methods 0.000 claims description 7
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Abstract
The application discloses a heat radiation efficiency detection method based on a film boiling heat radiation plate, which belongs to the technical field of heat radiation detection and comprises the following steps: the server receives first heat flow data acquired by the acquisition equipment and first temperature data of the film boiling heat dissipation plate in different time periods, and acquires effective heat dissipation areas of the film boiling heat dissipation plate in different working states; acquiring the change condition of the effective heat dissipation area along with the temperature change according to the first temperature data and the effective heat dissipation area of the film boiling heat dissipation plate in different working states; and calculating the heat dissipation efficiency according to a calculation formula, and selecting a corresponding effective heat dissipation area according to the current temperature. In the implementation process of the technical scheme, the effective heat dissipation area of the heat dissipation plate is obtained and calculated, so that different effective heat dissipation areas can be corresponding at different temperatures, and the heat dissipation efficiency of the film boiling heat dissipation plate can be accurately calculated.
Description
Technical Field
The application relates to the technical field of heat radiation detection, in particular to a heat radiation efficiency detection method based on a film boiling heat radiation plate.
Background
In recent years, electronic systems have been rapidly developed, and more industries apply electronic systems, and the electronic systems are used without a large number of hardware devices, and a large amount of heat is generated by the devices during operation, so that in order to ensure stable operation, a heat dissipation system is usually required to be synchronously arranged, and the heat generated by the devices is timely led out.
The existing heat dissipation system has various types, and SOTS (self-organizing thermodynamic learning system) is a technology capable of improving the heat dissipation bottleneck in an electronic system, is often applied to the scenes of information industry, high-end equipment, intelligent automobiles, high-end consumer electronics and the like, belongs to the category of passive heat transfer, and is specifically expressed as a complex micro-channel grid embedded in a solid substrate board.
However, in the use process of the technology, the heat dissipation efficiency of the film boiling heat dissipation plate can only be obtained approximately by using a formula method, and due to factors in the use process, such as data acquisition errors, flow instability of the data transmission errors caused by flow boiling of the micro-channels under high heat flux density, and the like, certain errors exist in the data involved in operation, and further the calculated heat dissipation efficiency cannot truly reflect the accurate heat dissipation efficiency of the film boiling heat dissipation plate, especially for the effective heat dissipation area, when the equipment temperature is low, part of the area does not participate in heat dissipation, and the part not participate in heat dissipation is calculated as the effective heat dissipation area, so that the calculation result cannot accurately reflect the actual situation, and according to the 10 ℃ rule in the Arrhenius equation, the reliability of the electronic device is closely related to the temperature, and when the temperature of the electronic device reaches 70 ℃ -80 ℃, the reliability of the electronic device is reduced by 50% every 10 ℃, therefore in some scenes with high requirements on heat dissipation efficiency, inaccurate heat dissipation efficiency may cause the equipment to fail to meet the requirements, and the probability of equipment damage is increased.
It is therefore necessary to provide a method for detecting the heat radiation efficiency based on the film boiling heat radiation plate to solve the above-mentioned problems.
It should be noted that the above information disclosed in this background section is only for understanding the background of the inventive concept and, therefore, it may contain information that does not constitute prior art.
Disclosure of Invention
Based on the above problems existing in the prior art, the present application aims to solve the problems: the heat radiation efficiency detection method based on the film boiling heat radiation plate achieves the effect of improving the accuracy of heat radiation efficiency by accurately calculating the effective heat radiation area of the heat radiation plate.
The technical scheme adopted for solving the technical problems is as follows: a heat dissipation efficiency detection method based on a film boiling heat dissipation plate comprises the following steps:
The server receives first heat flow data acquired by the acquisition equipment and first temperature data of the film boiling heat dissipation plate in different time periods, and acquires effective heat dissipation areas of the film boiling heat dissipation plate in different working states;
Acquiring the change condition of the effective heat dissipation area along with the temperature change according to the first temperature data and the effective heat dissipation area of the film boiling heat dissipation plate in different working states;
and calculating the heat dissipation efficiency according to a calculation formula, and selecting a corresponding effective heat dissipation area according to the current temperature.
In the implementation process of the technical scheme, the effective heat dissipation area of the heat dissipation plate is obtained and calculated, so that different effective heat dissipation areas can be corresponding at different temperatures, and the heat dissipation efficiency of the film boiling heat dissipation plate can be accurately calculated.
Further, obtaining the effective heat dissipation area of the film boiling heat dissipation plate in different working states comprises:
Respectively obtaining thermal imaging of the film boiling heat dissipation plate in the working state and the non-working state;
optimizing thermal imaging under two working states, and improving imaging quality;
and carrying out area calculation on the optimized thermal imaging through calculus to obtain an effective heat dissipation area in a working state and a non-working state, wherein the unit of the effective heat dissipation area is square meters.
Further, obtaining the change condition of the effective heat dissipation area along with the temperature change includes:
setting an acquisition interval, and respectively acquiring first temperature data and an effective heat dissipation area of the film boiling heat dissipation plate according to the acquisition interval;
Acquiring a temperature change value and an effective heat dissipation area change value according to the first temperature data and the effective heat dissipation area, and calculating an area-temperature ratio at unit temperature based on the temperature change value and the effective heat dissipation area change value;
and acquiring a plurality of area temperature ratios according to the sequence of the acquisition intervals, and carrying out statistical treatment on the area temperature ratios.
Further, the temperature change value is an absolute difference value between the temperature acquired at the current acquisition interval and the temperature acquired at the last acquisition interval, and the effective heat dissipation area change value is an absolute difference value between the effective heat dissipation area acquired at the current acquisition interval and the effective heat dissipation area acquired at the last acquisition interval.
Further, the area temperature ratio calculation method under unit temperature is that the effective heat dissipation area change value is divided by the temperature change value, and the unit of the area temperature ratio is square meter/°c.
Further, the statistical processing of the area temperature ratio is realized by a threshold interval mapping method, and the method comprises the following steps:
Calculating the change values of the area temperature ratio values at all adjacent acquisition intervals, and obtaining a change value set;
mapping the temperature value of the first temperature data into a change value at each adjacent acquisition interval;
Setting a change value threshold, screening the change values according to the change value threshold, taking the change values lower than the change value threshold as the same class, and taking each change value higher than the change value threshold as a class independently;
the screened change value corresponds to the change rate of the effective heat dissipation area;
And setting a temperature interval, and mapping the change rate of the effective heat dissipation areas of the same type into a corresponding interval.
A radiation efficiency detection system based on a film boiling radiation plate, comprising:
The data acquisition module is used for receiving the first heat flow data acquired by the acquisition equipment and the first temperature data of the film boiling heat dissipation plate in different time periods by the server and acquiring the effective heat dissipation areas of the film boiling heat dissipation plate in different working states;
The effective area acquisition module is used for acquiring the change condition of the effective heat dissipation area along with the temperature change according to the first temperature data and the effective heat dissipation areas of the film boiling heat dissipation plate in different working states;
And the heat dissipation efficiency calculation module is used for calculating the heat dissipation efficiency according to a calculation formula and selecting a corresponding effective heat dissipation area according to the current temperature.
Further, the data acquisition module further includes:
the thermal imaging acquisition module is used for respectively acquiring thermal imaging of the film boiling heat radiation plate in the working state and the non-working state;
the image optimization module is used for optimizing thermal imaging under two working states and improving imaging quality;
The area calculation module is used for carrying out area calculation on the optimized thermal imaging through calculus to obtain an effective heat dissipation area in a working state and a non-working state, wherein the unit of the effective heat dissipation area is square meters.
The beneficial effects of the application are as follows: according to the heat radiation efficiency detection method based on the film boiling heat radiation plate, the effective heat radiation area of the heat radiation plate is obtained and calculated, and different effective heat radiation areas can be corresponding at different temperatures, so that the heat radiation efficiency of the film boiling heat radiation plate can be accurately calculated.
In addition to the objects, features and advantages described above, the present application has other objects, features and advantages. The present application will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic diagram showing a method for detecting heat dissipation efficiency based on a film boiling heat dissipation plate according to the present application;
Fig. 2 is a schematic diagram of a module configuration of a heat dissipation efficiency detection system based on a film boiling heat dissipation plate according to the present application.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
Embodiment one: as shown in fig. 1, the present application provides a method for detecting heat radiation efficiency based on a film boiling heat radiation plate, which is applied to a heat radiation apparatus, such as a film boiling heat radiation plate, which is a technical apparatus for efficient heat radiation, generally made of a film material, having a certain surface area, and enhancing heat transfer efficiency by using boiling phenomenon, while the heat radiation efficiency of the existing film boiling heat radiation plate remains on a macroscopic level, and is difficult to obtain during use, thus improvement is required, the method comprising:
Step 101: the server receives first heat flow data acquired by the acquisition equipment and first temperature data of the film boiling heat dissipation plate in different time periods, and acquires effective heat dissipation areas of the film boiling heat dissipation plate in different working states;
In order to monitor the heat dissipation efficiency of the film boiling heat dissipation plate, data acquisition is needed, so acquisition equipment is arranged to acquire the heat flow, temperature change, effective heat dissipation area and the like of the film boiling heat dissipation plate, the acquisition equipment can be various sensors, acquisition systems or integrated acquisition systems, acquired data are respectively first heat flow data, the units of the data are watt, and the data can be acquired through a common heat flow tester on the market; the first temperature data of the film boiling heat dissipation plate in different time periods are in the unit of degrees centigrade, and can be collected through a common temperature sensor; the unit of the effective heat dissipation area of the film boiling heat dissipation plate is square meter, and the effective heat dissipation area is realized by adopting an image detection method;
The server refers to a module with functions of data receiving, data processing and the like, which is not a general concept of a server in the prior art, and is not described in detail below;
The effective heat dissipation area of the film boiling heat dissipation plate is an important parameter for evaluating the heat dissipation efficiency, in the existing heat dissipation efficiency calculation method, the area of the heat dissipation plate is generally taken as the effective heat dissipation area directly, but due to structural design reasons and practical temperature reasons of the device, the area of the heat dissipation plate cannot completely represent the effective heat dissipation area, and the effective heat dissipation area changes at different temperatures, so that the heat dissipation efficiency calculated in the prior art is larger than the actual heat dissipation efficiency, in the embodiment, the method realizes the acquisition of the effective heat dissipation area by an image detection method, and comprises the following steps:
step a: respectively obtaining thermal imaging of the film boiling heat dissipation plate in the working state and the non-working state;
when the film boiling heat radiation plate works, the effective area part of the film boiling heat radiation plate can generate temperature change, so that equipment such as a thermal imager and the like is adopted to perform thermal imaging acquisition on the working state and the non-working state of the film boiling heat radiation plate, thermal imaging under the working state and thermal imaging under the non-working state are obtained, and thermal imaging under the two states is acquired instead of directly performing thermal imaging on the film boiling heat radiation plate under the working state, because the influence of environmental temperature is considered, and even when the film boiling heat radiation plate does not work, the surface of the film boiling heat radiation plate has temperature change;
step b: optimizing thermal imaging under two working states, and improving imaging quality;
When a thermal imager is used for thermal imaging of a film boiling heat dissipation plate in two states, the imaging quality is poor due to resolution, environmental factors, equipment quality, operation process and the like, so that optimization is also required, and specific optimization methods comprise operations such as contrast enhancement, noise removal, image enhancement, post-processing, multi-mode image fusion and the like, and the detailed description of the optimization method or the optimization means for thermal imaging in the prior art can be referred to, and is omitted in the embodiment;
Step c: and carrying out area calculation on the optimized thermal imaging through calculus to obtain an effective heat dissipation area in a working state and a non-working state, wherein the unit of the effective heat dissipation area is square meters.
After optimizing the film boiling heat dissipation plate in two working states, because the thermal imaging of the film boiling heat dissipation plate usually presents an irregular pattern, the area calculation is needed to be performed on the optimized thermal imaging by adopting a calculus, so that the effective heat dissipation area in different working states is obtained, and the area calculation is performed on the irregular pattern by adopting the calculus, which is a conventional technical means in the art, so that the detailed description is omitted in the embodiment, and the related technology can be referred to specifically.
Step 102: acquiring the change condition of the effective heat dissipation area along with the temperature change according to the first temperature data and the effective heat dissipation area of the film boiling heat dissipation plate in different working states;
In practical application, as the temperature changes along with the operation of the device, the heat required to be emitted by the film boiling liquid cooling heat dissipation plate also gradually increases, in this process, the effective heat dissipation area of the film boiling heat dissipation plate also gradually increases until the whole heat dissipation plate participates in the heat dissipation operation, therefore, according to the change of the effective heat dissipation area caused by the temperature change of the device, the effective heat dissipation area of the film boiling heat dissipation plate at different temperatures can be obtained, and then the heat dissipation efficiency at different temperatures is obtained, that is, the heat dissipation efficiency of the film boiling heat dissipation plate is not fixed, but changes along with the change of the temperature, so that whether the film boiling heat dissipation plate can be applied to the device with different temperature peaks or temperature changes is judged according to the change situation, specifically, the change situation that the effective heat dissipation area generates along with the change of the temperature includes the following steps:
setting an acquisition interval, and respectively acquiring first temperature data and an effective heat dissipation area of the film boiling heat dissipation plate according to the acquisition interval;
In order to more accurately acquire the operation condition of the film boiling heat dissipation plate, an acquisition interval needs to be set, and the acquisition interval is set based on time, for example, the acquisition interval can be set to be five minutes, namely, temperature data is acquired every five minutes, and the effective heat dissipation area of the film boiling heat dissipation plate is acquired;
Acquiring a temperature change value and an effective heat dissipation area change value according to the first temperature data and the effective heat dissipation area, and calculating an area-temperature ratio at unit temperature based on the temperature change value and the effective heat dissipation area change value;
after the first temperature data and the effective heat dissipation area are acquired, a temperature change value and an effective heat dissipation area change value are also required to be acquired, wherein the temperature change value is an absolute difference value between the temperature acquired at the current acquisition interval and the temperature acquired at the last acquisition interval, and the effective heat dissipation area change value is an absolute difference value between the effective heat dissipation area acquired at the current acquisition interval and the effective heat dissipation area acquired at the last acquisition interval;
The area temperature ratio calculation method under unit temperature is that the effective heat dissipation area change value is divided by the temperature change value, the obtained area temperature ratio is only the change rate between the current acquisition interval and the last acquisition interval, when the number of the acquisition intervals is large, a plurality of area temperature ratios are generated, and the unit of the area temperature ratio is square meter/°c;
acquiring area temperature ratios at different acquisition intervals according to the sequence of the acquisition intervals, and carrying out statistical treatment on the area temperature ratios;
After a plurality of area temperature ratios are acquired according to the sequence of acquisition intervals, statistical processing is further needed according to the area temperature ratios, so that the change condition of the effective heat dissipation area of the film boiling heat dissipation plate in different temperature intervals can be judged better, wherein the statistical processing of the area temperature ratios is realized by adopting a threshold interval mapping method, and the method comprises the following steps:
Calculating the change values of the area temperature ratio values at all adjacent acquisition intervals, and obtaining a change value set;
Under different acquisition intervals, the area temperature ratio can change, and for the convenience of statistics, the change values under all adjacent acquisition intervals are calculated and used as a change value set;
Mapping the temperature value of the first temperature data into a change value set at each adjacent acquisition interval;
Since the first temperature data are collected at different time points, the first temperature data also correspond to the change value between the area temperature ratios;
Setting a change value threshold, screening the change values according to the change value threshold, taking the change values lower than the change value threshold as the same class, and taking each change value higher than the change value threshold as a class independently;
The change value of the area temperature ratio has certain repeatability, so that part of change values lower than the change value threshold are required to be used as a class, each change value higher than the change value threshold is independently used as a class, for example, the change value threshold is set to be 10 square meters/°c, the change value lower than 10 square meters/°c is used as a class, and each change value higher than 10 square meters/°c is independently used as a class;
the screened change value corresponds to the change rate of the effective heat dissipation area;
after the screened change value corresponds to the change rate of the effective heat dissipation area, the change rate of the effective heat dissipation area can be classified according to the screening result;
And setting a temperature interval, and mapping the change rate of the effective heat dissipation areas of the same type into a corresponding interval.
After the temperature interval is set, the area temperature ratio in each interval is fixed, and when the film boiling heat radiation plate is used, the effective heat radiation area can be judged according to the temperature interval without re-acquisition or measurement.
Step 103: and calculating the heat dissipation efficiency according to a calculation formula, and selecting a corresponding effective heat dissipation area according to the current temperature.
In the prior art, the calculation formulas of the heat dissipation efficiency are various, but in any mode, the heat dissipation area needs to be calculated, and because the acquisition of the effective heat dissipation area is introduced in the process, the heat dissipation area in the existing formulas is replaced by the effective heat dissipation area in the application during calculation, and the effective heat dissipation area can be acquired at different temperatures without repeated acquisition.
Embodiment two: as shown in fig. 2, this embodiment discloses a heat dissipation detection system based on a film boiling heat dissipation plate, and the system operates the monitoring method in the first embodiment, and the system includes:
The data acquisition module is used for receiving the first heat flow data acquired by the acquisition equipment and the first temperature data of the film boiling heat dissipation plate in different time periods by the server and acquiring the effective heat dissipation areas of the film boiling heat dissipation plate in different working states;
The effective area acquisition module is used for acquiring the change condition of the effective heat dissipation area along with the temperature change according to the first temperature data and the effective heat dissipation areas of the film boiling heat dissipation plate in different working states;
And the heat dissipation efficiency calculation module is used for calculating the heat dissipation efficiency according to a calculation formula and selecting a corresponding effective heat dissipation area according to the current temperature.
The data acquisition module further comprises:
the thermal imaging acquisition module is used for respectively acquiring thermal imaging of the film boiling heat radiation plate in the working state and the non-working state;
the image optimization module is used for optimizing thermal imaging under two working states and improving imaging quality;
The area calculation module is used for carrying out area calculation on the optimized thermal imaging through calculus to obtain an effective heat dissipation area in a working state and a non-working state, wherein the unit of the effective heat dissipation area is square meters.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (5)
1. A heat dissipation efficiency detection method based on a film boiling heat dissipation plate is characterized in that: comprising the following steps:
The server receives first heat flow data acquired by the acquisition equipment and first temperature data of the film boiling heat dissipation plate in different time periods, and acquires effective heat dissipation areas of the film boiling heat dissipation plate in different working states;
Acquiring the change condition of the effective heat dissipation area along with the temperature change according to the first temperature data and the effective heat dissipation area of the film boiling heat dissipation plate in different working states;
calculating heat dissipation efficiency according to a calculation formula, and selecting a corresponding effective heat dissipation area according to the current temperature;
The obtaining of the change condition of the effective heat dissipation area along with the temperature change comprises the following steps:
setting an acquisition interval, and respectively acquiring first temperature data and an effective heat dissipation area of the film boiling heat dissipation plate according to the acquisition interval;
Acquiring a temperature change value and an effective heat dissipation area change value according to the first temperature data and the effective heat dissipation area, and calculating an area-temperature ratio at unit temperature based on the temperature change value and the effective heat dissipation area change value;
acquiring a plurality of area temperature ratios according to the sequence of the acquisition intervals, and carrying out statistical treatment on the area temperature ratios;
The temperature change value is the absolute difference value between the temperature acquired at the current acquisition interval and the temperature acquired at the last acquisition interval, and the effective heat dissipation area change value is the absolute difference value between the effective heat dissipation area acquired at the current acquisition interval and the effective heat dissipation area acquired at the last acquisition interval;
The statistical processing of the area temperature ratio is realized by adopting a threshold interval mapping method, and the method comprises the following steps:
Calculating the change values of the area temperature ratio values at all adjacent acquisition intervals, and obtaining a change value set;
mapping the temperature value of the first temperature data into a change value at each adjacent acquisition interval;
Setting a change value threshold, screening the change values according to the change value threshold, taking the change values lower than the change value threshold as the same class, and taking each change value higher than the change value threshold as a class independently;
the screened change value corresponds to the change rate of the effective heat dissipation area;
And setting a temperature interval, and mapping the change rate of the effective heat dissipation areas of the same type into a corresponding interval.
2. The method for detecting heat dissipation efficiency based on film boiling heat dissipation plate as recited in claim 1, wherein: the method for obtaining the effective heat dissipation area of the film boiling heat dissipation plate under different working states comprises the following steps:
Respectively obtaining thermal imaging of the film boiling heat dissipation plate in the working state and the non-working state;
optimizing thermal imaging under two working states, and improving imaging quality;
and carrying out area calculation on the optimized thermal imaging through calculus to obtain an effective heat dissipation area in a working state and a non-working state, wherein the unit of the effective heat dissipation area is square meters.
3. The method for detecting heat dissipation efficiency based on film boiling heat dissipation plate as recited in claim 1, wherein: the area temperature ratio calculation method under the unit temperature is that the effective heat dissipation area change value is divided by the temperature change value, and the unit of the area temperature ratio is square meter/°c.
4. A heat dissipation efficiency detecting system based on film boiling heat dissipation plate is characterized in that: a heat radiation efficiency detection method based on a film boiling heat radiation plate as claimed in any one of claims 1 to 3, comprising:
The data acquisition module is used for receiving the first heat flow data acquired by the acquisition equipment and the first temperature data of the film boiling heat dissipation plate in different time periods by the server and acquiring the effective heat dissipation areas of the film boiling heat dissipation plate in different working states;
The effective area acquisition module is used for acquiring the change condition of the effective heat dissipation area along with the temperature change according to the first temperature data and the effective heat dissipation areas of the film boiling heat dissipation plate in different working states;
the heat dissipation efficiency calculation module is used for calculating heat dissipation efficiency according to a calculation formula and selecting a corresponding effective heat dissipation area according to the current temperature;
The obtaining of the change condition of the effective heat dissipation area along with the temperature change comprises the following steps:
setting an acquisition interval, and respectively acquiring first temperature data and an effective heat dissipation area of the film boiling heat dissipation plate according to the acquisition interval;
Acquiring a temperature change value and an effective heat dissipation area change value according to the first temperature data and the effective heat dissipation area, and calculating an area-temperature ratio at unit temperature based on the temperature change value and the effective heat dissipation area change value;
acquiring a plurality of area temperature ratios according to the sequence of the acquisition intervals, and carrying out statistical treatment on the area temperature ratios;
The temperature change value is the absolute difference value between the temperature acquired at the current acquisition interval and the temperature acquired at the last acquisition interval, and the effective heat dissipation area change value is the absolute difference value between the effective heat dissipation area acquired at the current acquisition interval and the effective heat dissipation area acquired at the last acquisition interval;
The statistical processing of the area temperature ratio is realized by adopting a threshold interval mapping method, and the method comprises the following steps:
Calculating the change values of the area temperature ratio values at all adjacent acquisition intervals, and obtaining a change value set;
mapping the temperature value of the first temperature data into a change value at each adjacent acquisition interval;
Setting a change value threshold, screening the change values according to the change value threshold, taking the change values lower than the change value threshold as the same class, and taking each change value higher than the change value threshold as a class independently;
the screened change value corresponds to the change rate of the effective heat dissipation area;
And setting a temperature interval, and mapping the change rate of the effective heat dissipation areas of the same type into a corresponding interval.
5. The heat radiation efficiency detection system based on film boiling heat radiation plate as claimed in claim 4, wherein: the data acquisition module further comprises:
the thermal imaging acquisition module is used for respectively acquiring thermal imaging of the film boiling heat radiation plate in the working state and the non-working state;
the image optimization module is used for optimizing thermal imaging under two working states and improving imaging quality;
The area calculation module is used for carrying out area calculation on the optimized thermal imaging through calculus to obtain an effective heat dissipation area in a working state and a non-working state, wherein the unit of the effective heat dissipation area is square meters.
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|---|---|---|---|---|
| CN115586028A (en) * | 2022-10-08 | 2023-01-10 | 曙光信息产业股份有限公司 | Method for detecting heat dissipation performance of radiator |
| CN116907896A (en) * | 2023-07-20 | 2023-10-20 | 武汉中极氢能产业创新中心有限公司 | Performance test method and device for membrane humidifier |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8042993B2 (en) * | 2007-12-21 | 2011-10-25 | GM Global Technology Operations LLC | Air-cooled power electronics service algorithm |
| ES2352619B1 (en) * | 2009-07-31 | 2012-01-03 | Universidad De Barcelona | METHOD AND SYSTEM FOR THE DETERMINATION OF THE ENERGY FLOW OF A FUEL GAS CONSTITUTED BY MORE THAN TWO COMPONENTS. |
| KR102086260B1 (en) * | 2018-11-23 | 2020-03-06 | 한국항공대학교산학협력단 | Film-effectiveness measuring apparatus and measuring method using blow-down wind tunnel |
| CN110134983B (en) * | 2019-03-04 | 2023-04-18 | 天津大学 | Modeling method of proton exchange membrane fuel cell cooling system |
| CN110131796A (en) * | 2019-05-20 | 2019-08-16 | 广东美的暖通设备有限公司 | Radiator, air conditioner and its control method, computer readable storage medium |
| CN112268723A (en) * | 2020-10-22 | 2021-01-26 | 中国石油大学(华东) | Boiling heat exchange experimental device for promoting uniform heating of low-temperature mixed working medium |
| CN115062462B (en) * | 2022-06-08 | 2024-05-03 | 南京贝迪新材料科技股份有限公司 | Intelligent assessment method and system for heat transfer performance of ultrathin heat dissipation film |
| CN115389238A (en) * | 2022-08-22 | 2022-11-25 | 楚岳(惠州)热传科技有限公司 | Radiator performance test system and test method |
| CN116563280B (en) * | 2023-07-07 | 2023-09-12 | 深圳市鑫典金光电科技有限公司 | Composite copper heat dissipation bottom plate processing detection method and system based on data analysis |
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| CN116907896A (en) * | 2023-07-20 | 2023-10-20 | 武汉中极氢能产业创新中心有限公司 | Performance test method and device for membrane humidifier |
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