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Design of high-performance water-in-glass evacuated tube solar water heaters by a high-throughput screening based on machine learning: A combined modeling and experimental study.

Authors :
Liu, Zhijian
Li, Hao
Liu, Kejun
Yu, Hancheng
Cheng, Kewei
Source :
Solar Energy. Jan2017, Vol. 142, p61-67. 7p.
Publication Year :
2017

Abstract

How to design water-in-glass evacuated tube solar water heater (WGET-SWH) with high heat collection rates has long been a question. Here, we propose a high-throughput screening (HTS) method based on machine learning to design and screen 3.538125 × 10 8 possible combinations of extrinsic properties of WGET-SWH, to discover promising WGET-SWHs by comparing their predicted heat collection rates. Two new-designed WGET-SWHs were installed experimentally and showed higher heat collection rates (11.32 and 11.44 MJ/m 2 , respectively) than all the 915 measured samples in our previous database. This study shows that we can use the HTS method to modify the design of WGET-SWH with just few knowledge about the highly complicated correlations between the extrinsic properties and heat collection rates of solar water heaters. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0038092X
Volume :
142
Database :
Academic Search Index
Journal :
Solar Energy
Publication Type :
Academic Journal
Accession number :
120589970
Full Text :
https://doi.org/10.1016/j.solener.2016.12.015