Technique of Direct Copper to Glass Seal in an Evacuated Tube Solar Collector

2006 ◽  
Vol 43 (9) ◽  
pp. 544-551 ◽  
Keyword(s):  
Solar Collector ◽  
Evacuated Tube Solar Collector ◽  
Evacuated Tube ◽  
Glass Seal

Thermal performance analysis of the glass evacuated tube solar collector with U-tube

2010 ◽  
Vol 45 (9) ◽  
pp. 1959-1967 ◽  
Author(s):  
Liangdong Ma ◽  
Zhen Lu ◽  
Jili Zhang ◽  
Ruobing Liang
Keyword(s):  
Performance Analysis ◽  
Thermal Performance ◽  
Solar Collector ◽  
Evacuated Tube Solar Collector ◽  
Evacuated Tube

Efficiency of evacuated tube solar collector using WO3/Water nanofluid

2019 ◽  
Vol 134 ◽  
pp. 453-460 ◽  
Author(s):  
M.A. Sharafeldin ◽  
Gyula Gróf
Keyword(s):  
Solar Collector ◽  
Evacuated Tube Solar Collector ◽  
Evacuated Tube

scholarly journals Performance and economic evaluation of evacuated tube solar collector with auxiliary electric heater for rural heating

2019 ◽  
Vol 158 ◽  
pp. 186-191 ◽  
Author(s):  
Lai Yanhua ◽  
Hao Wengang ◽  
Yu Hongwen ◽  
zheng jian ◽  
Lyu Mingxin
Keyword(s):  
Economic Evaluation ◽  
Solar Collector ◽  
Electric Heater ◽  
Evacuated Tube Solar Collector ◽  
Evacuated Tube

Computational Fluid Dynamics Modeling of a Heat Pipe Evacuated Tube Solar Collector Integrated With Phase Change Material

2019 ◽  
Author(s):  
Vivek R. Pawar ◽  
Sarvenaz Sobhansarbandi
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Energy Storage ◽  
Phase Change ◽  
Heat Pipe ◽  
Solar Collector ◽  
Cfd Modeling ◽  
Real Field ◽  
Evacuated Tube Solar Collector ◽  
Evacuated Tube

Abstract The increase in greenhouse gas and other global warming emissions makes it necessary to utilize renewable energy sources such as solar energy with high potential for heat production by means of solar thermal collectors. Among various types of solar collectors, evacuated tube solar collector (ETC) has attracted many attentions specially for the application in solar water heater systems (SWHs). However, due to the intermittence in solar intensity during the day, the ETCs may not work at their maximum functionality. There are number of studies investigating the effect of energy storage materials to eliminate the mismatch between supply and demand during peak hours. In the recent work of the authors, application of phase change materials (PCMs) integrated directly within the ETCs is studied experimentally. In this study, the computational fluid dynamics (CFD) modeling of heat pipe evacuated tube solar collector (HPETC) is performed. In order to cross-validate the obtained results to the recent experimental analysis, the boundary conditions are set as the real field-testing data. In the first part of the study, the 3D model of commercially available HPETC is simulated, while in the second part the HPETC integrated with the PCM is developed to analyze the improved thermal distribution. The selected type of PCM is Tritriacontane paraffin (C33H68), with a melting point of 72 °C and latent heat capacity of 256 kJ/kg. The simulation results show a acceptable agreement between the CFD modeling and the experimental data. The results from this study can be the benchmark for efficiency improvement of the ETCs in thermal energy storage systems.

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