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Evaluation of energy utilisation efficiency of central air conditioning in large buildings based on entropy weight-cloud model

Author

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  • Qi Wu
  • Aina Qi
  • Guanglei Zhao

Abstract

In the evaluation of the energy use efficiency of the existing large air conditioners, the problems of low accuracy and high time cost are presented. The structure and movement mechanism of air conditioners in large buildings are analysed to obtain efficiency evaluation results. The covariance matrix was used to obtain the evaluation index of energy utilisation potency in air conditioners. Through proportion of influencing factors, the function relationship between indoor temperature change and cooling load change was determined based on the distribution of cooling load in large buildings. The entropy weight-cloud evaluation model was built to complete the evaluation and analysis of utilisation potency. Through comparative analysis, we can see that error of energy evaluation for air conditioner is less than 3%, and that need time cost is small.

Suggested Citation

  • Qi Wu & Aina Qi & Guanglei Zhao, 2022. "Evaluation of energy utilisation efficiency of central air conditioning in large buildings based on entropy weight-cloud model," International Journal of Global Energy Issues, Inderscience Enterprises Ltd, vol. 44(2/3), pages 198-216.
    • Handle: RePEc:ids:ijgeni:v:44:y:2022:i:2/3:p:198-216
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    Cited by:

    1. Jinming Zhou & Yuanyuan Zhan & Sibo Chen, 2024. "Multi-Dimensional Cloud Model-Based Assessment and Its Application to the Risk of Supply Chain Financial Companies," International Journal of Fuzzy System Applications (IJFSA), IGI Global, vol. 13(1), pages 1-29, January.

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