In today's society, both developed and developing countries attach great importance to energy conservation. Therefore, the use of scientific methods to reduce building energy consumption is essential to promote energy development and utilization. The use of infrared thermal imaging cameras to test the thermal defects of the building envelope, while evaluating its thermal insulation performance and whether there are internal defects is an effective monitoring method for building energy conservation.

At the same time, the infrared thermal imager also has the function of testing airtightness. The infrared thermal imager can be used to quickly scan and take infrared thermal image photos, which can scientifically and accurately determine the leakage source of the building. The followings are the applications of thermal imaging cameras in building energy conservation.

Wall cold bridge detection

The detection of cold bridge parts of the wall is in severe cold and cold areas. The cold bridge has a greater impact on heating load and energy consumption indicators, usually accounting for more than 20%. This area has a prominent cold bridge problem. The cold bridge must be treated in order to reduce the heat transfer loss and ensure that the enclosure structure does not condense on the indoor surface in winter. Therefore, it is very important to find the building cold bridge.

For example, when using an infrared camera to shoot from the inside, the cold bridge part of a heating building in winter is shown as a low-temperature area, where the temperature is only 12 ℃, while the temperature of other parts is 14.5 ℃ on average.

As the temperature difference between indoor and outdoor increases, the cold bridge problem will become more prominent. Because the temperature of the cold bridge is relatively low, it is easy to reach the dew point temperature of the indoor air, resulting in water seepage, wall peeling, mildew, and other phenomena.

The infrared camera can be used to scan the wall to obtain the temperature field distribution of the inner surface of the cold bridge, find the cold bridge in time, and repair it by adding benzene boards to eliminate hidden quality hazards.

Window air penetration detection

Air permeability is related to the sealing performance of the window. When the sealing performance of the window meets the requirements of the relevant design standards, it does not have a great impact on the energy consumption of the window. Severe air infiltration often occurs in the installation process.

After the installation of the window and the subsequent management process, timely finding the air infiltration location and timely sealing can reduce the energy consumption of the window to a large extent.

The temperature field distribution of the windows can be obtained through the thermal imaging camera. It can be seen that the temperature at the interface between the window and the wall is relatively low, around -10°C, while the average value of the inner surface of the window is about 10°C. This is because the interface The seal is not good, and there is air leakage.

Radiator working failure detection

In the case of trouble-free and stable operation, the temperature distribution of the radiator should show a uniform transitional state. In this case, the infrared thermal image taken is the temperature field distribution of the radiator under normal conditions. However, when the radiator has some kind of failure, the heat conduction of the hot water in the radiator to the surface changes, resulting in a change in the temperature distribution of the corresponding surface of the radiator.

For faults of different nature and faults of different severity, it will inevitably be reflected in the surface temperature distribution of the radiator. In this way, using the change of the infrared characteristic map, not only can it be judged whether the radiator is faulty, but also the location and nature of the fault can be judged by the distribution of the surface temperature field.

For example, when air accumulates in the radiator, the temperature distribution between the columns is extremely uneven. The highest temperature of the radiator appears on the rightmost column at 90°C, and the lowest temperature is 30°C, which appears in the upper left position. When there is gas, it is often concentrated in the opposite direction of the water supply pipe, which can distinguish the fault caused by the accumulation of gas.

The application research of infrared thermal imaging cameras in building energy saving will greatly promote the improvement of the level of building energy-saving on-site detection technology. If you want to understand the application of thermal imaging cameras in other fields after reading the above, you can get a comprehensive solution by contacting us.

We are an infrared camera manufacturer with many years of experience. We have a professional production team and a strict quality inspection system, which can control the quality of the products in all directions. We put the needs of our customers first, and develop effective solutions for our customers. If you are interested in our thermal imaging cameras, please contact us immediately!