Study Of An Infrared Detection Method Which Is Used In Building Masonry Wall's Insulting

Energy conservation is more and more important in modern architecture. The development of energy conservation needs effective testing method. At present, the most popular method of testing of energy conservation of buildings can't satisfy the requirement of the development of society. Such as, the testing method is time-consuming, discommodious and difficult in operation. To meet the requirement of the development of energy conservation of buildings, rapid and accurate testing method of energy conservation of buildings has been discussed in this thesis.According to theoretical analysis, a formula that is used in the calculation of heat transfer coefficient can be deduced and the formula is verified with experiment data. On the ground of theoretical analysis, thermal infrared imager can rapidly and accurately get the information of energy conservation of buildings and the heat transfer coefficient of enclosing construction. In this paper, a image processing method has been presented, with this method mean temperature of testing object can be arrived at from infrared picture and the interior temperature gradient of the test pieces in the situation of transient heat transfer can be got. Unsteady-state heat transfer mechanism of wall has also been studied in this paper.On the basis of theoretical analysis and experimental study we can get such conclusions: Infrared testing of energy conservation of buildings is rapider and more accurate than heat-flow meter method which is popular at present; heat transfer mechanism in the situation of unsteady-state heat transfer has been analyzed through experiment; The interior layers'temperature of the test pieces ascent in company with...