Global sensitivity analysis of two-stage thermoelectric refrigeration system based on response variance |
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| Authors: | Feng Zhang Xiayu Xu Lu Wang Zhongbing Liu Ling Zhang |
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| Affiliation: | 1. School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi'an, China;2. College of Civil Engineering, Hunan University, Changsha, China |
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| Abstract: | In this paper, a mathematical model of two-stage thermoelectric refrigeration system is established considering the influence of external heat transfer and its performance is analysed based on finite-time thermodynamics and Newton's heat transfer law. Taking the cooling capacity and coefficient of performance of the two-stage thermoelectric refrigeration system as separate objective functions, the general relationship between cooling capacity, coefficient of performance, and working design parameters of the system is determined. The influence of the fluctuation of the input design parameters on the output performance parameters is studied using a global sensitivity analysis based on the variance response. The main and total Global sensitivity indices of input parameters that affect the output performance are calculated, and the related sensitivity ranking are obtained. The results can be used to guide the performance analysis and parameter optimization of two-stage thermoelectric refrigeration system in application. |
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| Keywords: | coefficient of performance cooling capacity global sensitivity analysis two-stage thermoelectric refrigeration system |
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