关于综合运用局部和整体储存方式的储冰系统的应用-----外文翻译.doc

外文资料 Performance of ice storage system utilizing a combined partial and full storage strategy Abstract A combined system is a new thermal storage strategy adopted in this study with which the two other known strategies namely, partial and full load, are compared. The results revealed that the combined system requires larger equipment size than that required by partial system to satisfy the same cooling load. Factors F and F that p f may be multiplied by the daily average cooling load to determine the optimum chillers size for a combined system are found. These factors are applicable for any cooling load and are based on a given chiller condensing and evaporating condition as used in this study. These factors are found to vary with the number of on-peak hours. Combined strategy required chiller size was found to decrease with decrease in on-peak period, hence the optimum chiller size for this new strategy was found to occur at zero on-peak hours, and i.e., when the combined system starts to operate as a partial strategy system. Keywords: Ice storage system 1. Introduction Thermal storage is the temporary storage of high or low temperature energy for later use. Airconditioning system that employs thermal stor-age equipment incorporates two strategies, the partial and full load. For either of these strategies, investigations were made to determine thepossible saving in chiller size as compared with conventional cooling system. The partial andfull storage strategies were previously studied independently and the results obtained had shown that the chiller size required in partial strategy is smaller than that required in full strategy to satisfy the same cooling load. In this study a new strategy is adopted and investigated for chiller size determination. This strategy is named as a combined strategy system which includes both, the partial and full load,operating simultaneously. Hence, two sets of chillers are used in this new system, the first set operates continuo