外文翻譯---關(guān)于綜合運(yùn)用局部和整體儲(chǔ)存方式的儲(chǔ)冰系統(tǒng)的應(yīng)用

1、河南科技大學(xué)畢業(yè)設(shè)計(jì)1外文資料Performance of ice storage system utilizing a combined partial and full storage strategyAbstract A combined system is a new thermal storage strategy adopted in this study with which the two other known str

2、ategies 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

3、 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 chill

4、er 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 peri

5、od, 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 system1. Introdu

6、ction 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 lo

7、ad. 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 in

8、dependently 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. 河南科技大學(xué)畢業(yè)設(shè)計(jì)3full strategies at

9、the same time, it is important to find the minimum combination chiller size that will satisfy the cooling load at a set of conditions. These conditions are the evaporating and condensing pressure and temperature and the

10、number of on-peak hours during which only the partial chiller is kept running. The procedure adopted in this study in finding the minimum chiller size may be summarized as follow: (a) An initial assumption of the partial

11、 chiller size is to be made. The chiller size thus assumed should be related, some how, to the cooling load.Two distinct values of the cooling load are the maximum and the average value and the later is chose

12、n in this study. Hence the initial partial chiller size will be the average cooling load multiplied by a certain, arbitrarily selected, factor (Fp ). (b) Since air-cooled chiller is used, its condensing temperatu

13、re would vary according to inlet ambient air temperature. Therefore the initial partial chiller size would be based on the condensing temperature at which maximum cooling load occurs. (c) Chiller capacity is then determ

14、ined hourly and for the daily cycle at the different existing condensing temperature. (d) The difference between the daily cycle cooling load and the daily total partial strategy chiller capacity would be met by the full

15、 strategy chiller. The size of this chiller is assumed to be equal to the average cooling load multiplied by a factor (F) and must equal to the difference indicated above. If this condition is not satisfied then another

16、value of (Ff) is selected. (e) The combined strategy chiller size obtained by the initial run with the assumed (Fp) and calculated (Ff) may not be the optimum.Therefore an iteration procedure is adopted an

17、d the factor (Fp) is changed progressively until a minimum chiller size is obtained. (f) In order to find the relation between optimum chiller size and cooling load at different on-peak hours, the above procedure i