Experimental investigation of a solar thermal storage heater assembled with finned heat pipe and collective vacuum tubes

2018 ◽  
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pp. 463-473 ◽  
Author(s):  
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Xiufen He ◽  
Yang Liu ◽  
Jianguo Duan ◽  
Yaxiong Wang ◽  
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S. K. Choudhary ◽  
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Rajeshwer Prasad Saini

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pp. 639-651
Author(s):  
Tengyue Wang ◽  
Yaohua Zhao ◽  
Yanhua Diao ◽  
Cheng Ma ◽  
Yubin Zhang ◽  
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2021 ◽  
Vol 41 ◽  
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Author(s):  
Yanhua Diao ◽  
Qian Qin ◽  
Zeyu Wang ◽  
Yaohua Zhao ◽  
Chuanqi Chen ◽  
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2018 ◽  
Author(s):  
Zeyu Wang ◽  
Yanhua Diao ◽  
Yaohua Zhao ◽  
Chuanqi Chen ◽  
Lin Liang ◽  
...  

2019 ◽  
Author(s):  
Sakil Hossen ◽  
AKM M. Morshed ◽  
Amitav Tikadar ◽  
Azzam S. Salman ◽  
Titan C. Paul

2021 ◽  
Vol 11 (9) ◽  
pp. 4100
Author(s):  
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Sukanpirom Sriwong ◽  
Phisan Ponpo ◽  
Wei Wu ◽  
Walairat Chandra-ambhorn ◽  
...  

Evacuated-tube solar collector (ETSC) is developed to achieve high heating medium temperature. Heat transfer fluid contained inside a copper heat pipe directly affects the heating medium temperature. A 10 mol% of ethylene-glycol in water is the heat transfer fluid in this system. The purpose of this study is to modify inner structure of the evacuated tube for promoting heat transfer through aluminum fin to the copper heat pipe by inserting stainless-steel scrubbers in the evacuated tube to increase heat conduction surface area. The experiment is set up to measure the temperature of heat transfer fluid at a heat pipe tip which is a heat exchange area between heat transfer fluid and heating medium. The vapor/ liquid equilibrium (VLE) theory is applied to investigate phase change behavior of the heat transfer fluid. Mathematical model validated with 6 experimental results is set up to investigate the performance of ETSC system and evaluate the feasibility of applying the modified ETSC in small-scale industries. The results indicate that the average temperature of heat transfer fluid in a modified tube increased to 160.32 °C which is higher than a standard tube by approximately 22 °C leading to the increase in its efficiency by 34.96%.


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