Thermal Performance of a Single-Pass All-Glass Parabolic Trough Receiver
Publication: Journal of Energy Engineering
Volume 143, Issue 1
Abstract
A novel single-pass all-glass parabolic trough receiver (SPAG-PTR) was developed and the parabolic trough solar collector with concentration ratio of 7.5 was built to investigate the thermal performance of the SPAG-PTR. The indoor heat loss tests were settled as well as the outdoor experiments in quasi-steady-state and transient-state test conditions. The heat loss per unit absorber area of the SPAG-PTR in the average absorber temperature from 100 to 287°C was within the range of , which represents a better heat loss performance () upon the Sanle-3 receiver (Nanjing Sanle Electronic Information Industry Group, Nanjing, China). The experimental efficiency in transient state was within the range of 0.53–0.73 with the experimental relative error of approximately 3.6–6.5%. In addition, the experimental efficiency curve in quasi-steady-state was obtained. In quasi-steady-state, the experimental efficiency was approximately 0.65–0.71 when the inlet heat transfer fluid temperature was in the range of 100–160°C. These verify that this kind of SPAG-PTR is very promising for intermediate temperature applications.
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Acknowledgments
This work was founded by the National Key Technology R and D Program (Grant No. 2014BAJ01B06), the National Natural Science Foundation of China (Grant No. 51276086), and the Ordinary University Graduate Student Scientific Research Innovation Projects of Jiangsu province (CXLX13-410).
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Published In
Journal of Energy Engineering
Volume 143 • Issue 1 • February 2017
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Aug 21, 2015
Accepted: Mar 22, 2016
Published online: May 20, 2016
Discussion open until: Oct 20, 2016
Published in print: Feb 1, 2017
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