Method for testing energy-saving performance of doors and windows
A test method, door and window technology, applied in the field of doors and windows, can solve problems such as the method for not showing the energy-saving effect of energy-saving doors and windows, the extent to which the energy-saving performance of doors and windows cannot be achieved, etc.
Inactive Publication Date: 2013-11-27
中测测试科技有限公司
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Problems solved by technology
[0004] By observing the structure of doors and windows, the type of doors and windows, and the airtightness of doors and windows, we can roughly understand whether the doors and windows have energy-saving performance, but we cannot clearly know to what extent the energy-saving performance of doors and windows reaches
There is no method for testing the energy-saving effect of energy-saving doors and windows in the prior art.
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[0022] The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.
[0023] Such as figure 1 As shown, the working diagram of the energy-saving door and window performance testing method of the present invention. Since indoor furniture will limit the viewing angle of the infrared thermal imager lens, if outdoor conditions permit, that is, if the thermal image can be collected outdoors, choose to collect thermal images of the doors and windows under test outdoors. In this embodiment, the thermal image acquisition of the tested window 5 is carried out outdoors, then the infrared thermal imager 1 is placed outdoors, and the distance from the tested wind...
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The invention discloses a method for testing an energy-saving performance of door windows. The method includes firstly, respectively measuring the indoor temperature and the outdoor temperature by a thermometer; secondly, acquiring a first thermogram of the surface of a door window to be tested by an infrared thermographic instrument, and transmitting the first thermogram to a computer; thirdly, analyzing the first thermogram by the computer, and obtaining corresponding temperature values of various pixels in the first thermogram; and fourthly, computing an energy-saving index of the door window to be tested by the computer by the aid of an energy-saving index computation formula according to the temperature values corresponding to the various pixels. The method has the advantages that the energy-saving index of the door window to be tested is computed by means of acquiring the thermogram of the surface of the door window to be tested, the indoor temperature and the outdoor temperature, accordingly, an energy-saving effect of the door window to be tested is controlled, and portions with thermotechnical defects can be found out from the thermogram.
Description
technical field [0001] The invention relates to the technical field of doors and windows, in particular to a method for testing the performance of energy-saving doors and windows. Background technique [0002] In order to increase the lighting and ventilation area, or to express the character of modern buildings, the area of doors and windows of buildings is getting larger and larger, and there are more all-glass curtain wall buildings, so that the heat loss of doors and windows accounts for more than 40% of the total heat loss of the building. Energy saving of doors and windows is the key to building energy saving. Doors and windows are not only the key parts of energy gain and loss, but also related to lighting, ventilation, sound insulation, and facade modeling, which put forward higher requirements for energy saving of doors and windows. [0003] There are many factors that affect the performance of energy-saving doors and windows, such as the materials of making door...
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IPC IPC(8): G01N25/20
Inventor 苏红雨刘若凡张宪亮曾道全
Owner 中测测试科技有限公司