Methods of Stationary and Non-Stationary Research of A Water Apparatus of A Solar Collector With A Textile Heliopanel of A Tubular Type

2021 ◽  
pp. 58-63
Author(s):  
N.M. Sharpar ◽  
L.I. Zhmakin ◽  
K.A. Markova ◽  
L.I. Osipova
Keyword(s):  
Solar Collector ◽  
Tubular Type

The Effect of Using a Heat Recovery Absorber on the Performance and Operating Cost of the Solar Ammonia Absorption Cycles

1997 ◽  
Vol 119 (1) ◽  
pp. 19-23 ◽  
Author(s):  
Saghiruddin ◽  
M. Altamush Siddiqui
Keyword(s):  
Economic Analysis ◽  
Flat Plate ◽  
Solar Collector ◽  
Heat Recovery ◽  
Theoretical Study ◽  
Operating Cost ◽  
Operating Conditions ◽  
Tubular Type ◽  
Ammonia Absorption ◽  
The Cost

Economic analysis of ordinary and evacuated tubular type flat-plate collectors have been carried out for operating absorption cycles with and without heat recovery absorber. Water-ammonia, NaSCN-NH3 and LiNO3-NH3 have been selected as the working fluids in the cycles. Use of a heat recovery absorber, in addition to the primary absorber in the conventional absorption cycles, lead to improvement in the system performances by about 20–30 percent in the H2O-NH3 and 33–36 percent in the NaSCN-NH3 and LiNO3-NH3 mixtures. Subsequently, there is a considerable amount of reduction in the cost of the solar collector required to operate them. For the set of operating conditions, in this theoretical study, the cost reduces to about 25 percent in the H2O-NH3 and 30 percent in the NaSCN and LiNO3-NH3 cycles.

Parametric Study of Photovoltaic Thermal Solar Collector Using An Improved Parallel Flow

2020 ◽  
Vol 2 (1) ◽  
pp. 19-24
Author(s):  
Sakhr Mohammed Sultan ◽  
Chih Ping Tso ◽  
Ervina Efzan Mohd Noor ◽  
Fadhel Mustafa Ibrahim ◽  
Saqaff Ahmed Alkaff
Keyword(s):  
Thermal Conductivity ◽  
Energy Balance ◽  
Parametric Study ◽  
Solar Collector ◽  
Parallel Flow ◽  
Operating Conditions ◽  
Balance Equations ◽  
Conductivity Type ◽  
Pv Module ◽  
Sunny Weather

Photovoltaic Thermal Solar Collector (PVT) is a hybrid technology used to produce electricity and heat simultaneously. Current enhancements in PVT are to increase the electrical and thermal efficiencies. Many PVT factors such as type of absorber, thermal conductivity, type of PV module and operating conditions are important parameters that can control the PVT performance. In this paper, an analytical model, using energy balance equations, is studied for PVT with an improved parallel flow absorber. The performance is calculated for a typical sunny weather in Malaysia. It was found that the maximum electrical and thermal efficiencies are 12.9 % and 62.6 %, respectively. The maximum outlet water temperature is 59 oC.

Back-pass non-perforated unglazed solar collector: performance and evaluation

2013 ◽  
pp. 1000-1004
Author(s):  
M.A. Paya-Marin ◽  
J. B. P. Lim ◽  
B. Sen Gupta ◽  
R.M. Lawson
Keyword(s):  
Solar Collector ◽  
Performance And Evaluation

Preliminary studies of the water solar collector

2020 ◽  
Vol 18 ◽  
pp. 648-650
Author(s):  
D.A. Krawczyk ◽  
◽  
P. Zielinko ◽  
A. Rodero ◽  
◽  
...  
Keyword(s):  
Solar Collector
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