期刊
SOLAR ENERGY
卷 111, 期 -, 页码 43-52出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2014.10.026
关键词
Domestic hot water; Draw profiles; Solar hot water
资金
- NSERC
The heating of domestic hot water (DHW) to supply bathing, cleaning, and appliance needs contributes significantly to energy demands in housing. Despite the demonstrated significance of DHW draw profiles on performance, it is common practice when analyzing solar DHW and solar combisystems to conduct long-term simulations (e.g. annual) using repeating daily profiles. New DHW profiles that can be used for such analyses have been developed based upon measurements that were taken in 73 houses in Quebec (Canada). Annual DHW draw profiles at a time-resolution of 5 mm have been created for 4 consumption levels and 3 temporal consumption patterns (sparing consumers who tend to use DHW in the mornings, average consumers who tend to use DHW in the evenings, etc.). Simulations of a solar DHW system conducted with these new profiles revealed that both temporal and annually integrated predictions can be significantly affected by timing of DHW draws. (C) 2014 Elsevier Ltd. All rights reserved.
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