A new order reduction method for dynamic heat transfer model of building envelope
A building envelope structure and dynamic heat transfer technology, applied in the field of building performance simulation, can solve the problems of less calculation and immaturity, and achieve the effects of reduced calculation resource consumption, intuitive and simple processing, and high calculation accuracy
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[0041] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0042] A new model reduction method for the dynamic heat transfer of building envelopes is based on Laguerre orthogonal polynomials. The state variables of the system are directly expanded in the time domain in the space based on the orthogonal polynomials, and then the orthogonal polynomials are used. The corresponding coefficient vector or matrix of the polynomial constructs the required reduced-order matrix, and its technical route is as follows: figure 1 As shown, the detailed steps are as follows.
[0043] Step 1: Analyze the structure of the envelope structure, and establish a physical and mathematical model of the dynamic heat transfer of the envelope structure.
[0044] For the main body of the general enclosure structure, because the thickness is relatively small compared to the length and width, it can be regarded as a one-dimensiona...
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