Thermal Performance Study of the Fluid of a Collector Using Finite Elements with Computational Tools (CFD)

2018 ◽  
Vol 12 (2) ◽  
pp. 189
Author(s):  
Angelica Palacios ◽  
Olga Ramos ◽  
Dario Amaya
Keyword(s):  
Finite Elements ◽  
Thermal Performance ◽  
Performance Study ◽  
Computational Tools

scholarly journals Performance Study of a Cylindrical Parabolic Concentrating Solar Water Heater with Nail Type Twisted Tape inserts in the Copper Absorber Tube

2017 ◽  
Author(s):  
Amit K. Bhakta ◽  
Nitesh K. Panday ◽  
Shailenrda N. Singh
Keyword(s):  
Solar Energy ◽  
Thermal Performance ◽  
Water Flow Rate ◽  
Twisted Tape ◽  
Solar Water Heater ◽  
Performance Study ◽  
Water Heater ◽  
Solar Water ◽  
Pitch Ratio ◽  
Twist Pitch

This paper reports the overall thermal performance of a cylindrical parabolic concentrating solar water heater (CPCSWH) with inserting nail type twisted tape (NTT) in the copper absorber tube for the nail twist pitch ratios 4.787, 6.914 and 9.042 respectively. The experiments are conducted for a constant volumetric water flow rate and during the time period 9:00 h to 15:00 h. The useful heat gain, hourly solar energy collected and hourly solar energy stored of this solar water heater are found higher for nail twist pitch ratio 4.787. The above said parameters are found to be a peak at noon and observed to follow the path of variation of solar intensity. At the starting of the experiment, the value of charging efficiency is observed to be maximum. Whereas the maximum value of instantaneous efficiency and overall thermal efficiency are observed at noon. The key finding is that the nail twist pitch ratio enhances the overall thermal performance of the CPCSWH.

Thermal performance study of form-stable composite phase change material with polyacrylic

2017 ◽  
Author(s):  
Shin Yiing Kee ◽  
Yamuna Munusamy ◽  
Kok Seng Ong ◽  
Swee Yong Chee ◽  
Shimalaa Sanmuggam
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Thermal Performance ◽  
Performance Study ◽  
Composite Phase Change Material ◽  
Change Material
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