Integrated collector storage solar water heater: Temperature stratification
Integrated collector storage solar water heater: Temperature stratification
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DOI：
10.1016/j.apenergy.2008.12.009
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发表时间：
2009-09-01
期刊：
影响因子：
11.2
通讯作者：
Muneer, T.
中科院分区：
文献类型：
--
作者：
Garnier, C.;Currie, J.;Muneer, T.
对集热器蓄热式太阳能热水器（ICS-SWH）内部温度分层进行了分析。该系统采用矩形盒子的形式，将太阳能收集器和储罐整合到一个单元中，并针对苏格兰天气条件进行了优化模拟。为了与计算结果进行对比，对ICS-SWH进行了为期3个月的实验研究。使用先前开发的宏观模型；做了许多改进。初始的宏观模型能够根据给定的每小时入射太阳辐射、环境温度和进水温度，生成集热器中相应的水体温度，从而能够预测ICS-SWH的性能。新模型能够计算给定宽高比下不同SWH集热器的总体水温变化以及沿集热器高度的水温（温度分层）。计算得到的纵向温度分层结果与实验数据吻合较好。(C) 2008 Elsevier Ltd版权所有。
An analysis of the temperature stratification inside an Integrated Collector Storage Solar Water Heater (ICS-SWH) was carried out. The system takes the form of a rectangular-shaped box incorporating the solar collector and storage tank into a single unit and was optimised for simulation in Scottish weather conditions. A 3-month experimental study on the ICS-SWH was undertaken in order to provide empirical data for comparison with the computed results. Using a previously developed macro model; a number of improvements were made. The initial macro model was able to generate corresponding water bulk temperature in the collector with a given hourly incident solar radiation, ambient temperature and inlet water temperature and therefore able to predict ICS-SWH performance. The new model was able to compute the bulk water temperature variation in different SWH collectors for a given aspect ratio and the water temperature along the height of the collector (temperature stratification). Computed longitudinal temperature stratification results obtained were found to be in close agreement with the experimental data. (C) 2008 Elsevier Ltd. All rights reserved.