Regression Models and Sensitivity Analysis for the Thermal Performance of Solar Flat-Plate Collectors

2018 ◽  
Vol 44 (2) ◽  
pp. 1119-1127 ◽  
Author(s):  
Naveed ur Rehman ◽  
Muhammad Uzair ◽  
Mubashir Ali Siddiqui ◽  
Mehrdad Khamooshi
Keyword(s):  
Sensitivity Analysis ◽  
Flat Plate ◽  
Thermal Performance ◽  
Regression Models

ENHANCEMENT OF THERMAL PERFORMANCE OF SOLAR FLAT PLATE COLLECTOR USING SiO2 NANOFLUID

2017 ◽  
Vol 12 (4) ◽  
pp. 33 ◽  
Author(s):  
DALWADI M.D. ◽  
NAIK H.K. ◽  
PADHIAR R.D. ◽  
RANA S.S. ◽  
CHAVDA N.K. ◽  
...  
Keyword(s):  
Flat Plate ◽  
Thermal Performance ◽  
Flat Plate Collector

Numerical evaluation of the thermal performance of different types of double glazing flat-plate solar air collectors

Energy ◽  
2021 ◽  
pp. 121087
Author(s):  
C.Q. Chen ◽  
Y.H. Diao ◽  
Y.H. Zhao ◽  
Z.Y. Wang ◽  
T.T. Zhu ◽  
...  
Keyword(s):  
Flat Plate ◽  
Thermal Performance ◽  
Numerical Evaluation ◽  
Different Types

scholarly journals An experimental study of the thermal performance of the square and rhombic solar collectors

2018 ◽  
Vol 22 (1 Part B) ◽  
pp. 487-494 ◽  
Author(s):  
Aminreza Noghrehabadi ◽  
Ebrahim Hajidavaloo ◽  
Mojtaba Moravej ◽  
Ali Esmailinasab
Keyword(s):  
Experimental Study ◽  
Flat Plate ◽  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Thermal Performance ◽  
Thermal Efficiency ◽  
Solar Collectors ◽  
Heating Systems ◽  
Solar Water Heating

Solar collectors are the key part of solar water heating systems. The most widely produced solar collectors are flat plate solar collectors. In the present study, two types of flat plate collectors, namely square and rhombic collectors are experi?mentally tested and compared and the thermal performance of both collectors is investigated. The results show both collectors have the same performance around noon (?61%), but the rhombic collector has better performance in the morning and afternoon. The values for rhombic and square collectors are approximately 56.2% and 53.5% in the morning and 56.1% and 54% in the afternoon, respectively. The effect of flow rate is also studied. The thermal efficiency of rhombic and square flat plate collectors increases in proportion to the flow rate. The results indicated the rhombic collector had better performance in comparison with the square collector with respect to the mass-flow rate.

scholarly journals Utilization of Zinc-Ferrite/ Water Hybrid Nanofluids for enhancing thermal performance of a Flat Plate Solar Collector -An Analytical Study

2021 ◽  
Author(s):  
Prakasam Michael Joseph stalin ◽  
Thottipalayam Vellingri Arjunan ◽  
Mohammed Abdulrahman Almeshaal ◽  
Palaniappan Murugesan ◽  
Balaramachandran Prabu ◽  
...  
Keyword(s):  
Flat Plate ◽  
Thermal Performance ◽  
Working Fluid ◽  
Heat Transfer Fluids ◽  
Solar Thermal Collector ◽  
Energy And Exergy ◽  
Hybrid Nanofluids ◽  
Exergy Transfer ◽  
Flat Plate Solar Collector ◽  
Thermo Physical Properties

Abstract Thermodynamic performance analysis is carried out on a flat plate solar thermal collector utilizing single and hybrid nanofluids. As heat transfer fluids, Fe2O4/water, Zn-Fe2O4/water hybrid nanofluids, and water are used, and its performance are compared based on the energy and exergy transfer rate. The thermo-physical properties are evaluated by regression polynomial model for all the working fluids. Developed codes in MATLAB solve the collector's thermal model iteratively, energy and exergetic performance are evaluated. The system was then subjected to parametric investigation and optimization for variations in fluid flow rate, temperatures, and concentrations of nanoparticles. The findings show that utilizing Zn-Fe2O4/water hybrid nanofluids with a particle concentration of 0.5 percent enhanced the solar collector's thermal performance by 6.6% while using Fe2O4/water nanofluids raised the collector's thermal performance by 7.83% when compared to water as the working fluid. While hybrid nanofluids give a better thermal alternative than water and single nanofluids, they have also produced a 5.36% increase in exergetic efficiency and an enhancement of 8.24 percent when used with Fe2O4/water nanofluids.

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