A Study on a Calculation Method of Design Thermal Peak Load in a Building Energy Simulation Tool, the BEST

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  • 建築総合エネルギーシミュレーションツールBESTにおける設計用最大熱負荷計算法に関する研究
  • ケンチク ソウゴウ エネルギーシミュレーションツール BEST ニ オケル セッケイヨウ サイダイ ネツフカ ケイサンホウ ニ カンスル ケンキュウ

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Abstract

This paper proposes a daily periodic simulation method of design thermal peak load by using Expanded AMeDAS design weather conditions. This method was developed for a building energy simulation tool, the BEST and has the following features. (1) The heat balance between multiple zones can be simultaneously solved, (2) it is applicable to any warming-up hours or pulling-down hours assumed in pick-up load calculations for intermittent operation, (3) it is applicable to the cases in which the heating and cooling equipment operates intermittently more than once a day, and (4) it is useful for the evaluation of thermal environment during warming-up or pulling-down hours by using short time intervals for simulation. In the presented method of pick-up load calculation, the minimum thermal capacities that can satisfy the required zone thermal environment at the end of warming-up or pulling-down hours are obtained through iterations. The design peak loads were evaluated by the results from simulations through ten years and the proper warming-up or pulling-down hours assumed in the design simulation were examined. The results of design thermal peak load simulation in a residential houses were also presented.

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