A Study on Thermal Performance of a Novel All-Glass Evacuated Tube Solar Collector Manifold Header with an Inserted TubeReport as inadecuate




A Study on Thermal Performance of a Novel All-Glass Evacuated Tube Solar Collector Manifold Header with an Inserted Tube - Download this document for free, or read online. Document in PDF available to download.

International Journal of Photoenergy - Volume 2015 2015, Article ID 409517, 7 pages -

Research Article

College of Civil Engineering and Architecture, Jiaxing University, 56 Yuexiu South Road, Jiaxing, Zhejiang 314001, China

Institute of Energy, Jiangxi Academy of Sciences, Nanchang, Jiangxi 330096, China

Received 4 February 2015; Revised 19 April 2015; Accepted 20 April 2015

Academic Editor: Yuehong Su

Copyright © 2015 Jichun Yang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A novel all-glass evacuated tube collector manifold header with an inserted tube is proposed in this paper which makes water in all-glass evacuated solar collector tube be forced circulated to improve the performance of solar collector. And a dynamic numerical model was presented for the novel all-glass evacuated tube collector manifold header water heater system. Also, a test rig was built for model validation and comparison with traditional all-glass evacuated tube collector. The experiment results show that the efficiency of solar water heater with a novel collector manifold header is higher than traditional all-glass evacuated tube collector by about 5% and the heat transfer model of water heater system is valid. Based on the model, the relationship between the average temperature of water tank and inserted tube diameter water mass flow has been studied. The results show that the optimized diameter of inserted tube is 32 mm for the inner glass with the diameter of 47 mm and the water flow mass should be less than 1.6 Kg-s.





Author: Jichun Yang, Qingyang Jiang, Jingxin Hou, and Chenglong Luo

Source: https://www.hindawi.com/



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