Performance Enhancement of a Solar Air Collector Using a V-Corrugated Absorber
نویسندگان
چکیده
Solar energy is one of the most efficient forms renewable energy. air collectors are promising utilization solar The present study used unsteady three-dimensional Computational Fluid Dynamic (CFD) analysis to investigate heat transfer and fluid friction in with smooth v-corrugation absorber plates. studied parameters Reynolds number, height, pitch. Three number (500, 1000, 1500) values were three arrangements configuration relative heights 0.10, 0.16, 0.23. Roughness pitches varied between 1.33, 1.66, 2. By comparing simulated thermal efficiency currently known experimental values, great agreement can be approved. Results show superiority performance v-corrugated collector against traditional or type. outlet temperature obtained case roughness height = 0.23 pitch 2 61 °C, while it 53 °C for a Also, higher 46.7 % compared 33.01%
منابع مشابه
Thermohydraulic Performance of Double Flow Solar Air Heater with Corrugated Absorber
Abstract—This paper deals with the analytical investigation of thermal and thermohydraulic performance of double flow solar air heaters with corrugated and flat plate absorber. A mathematical model of double flow solar air heater has been presented, and a computer program in C++ language is developed to estimate the outlet temperature of air for the evaluation of thermal and thermohydraulic eff...
متن کاملEfficiency of Recycling Double-Pass V-Corrugated Solar Air Collectors
The influence of recycling on double-pass solar air collectors with welding of the V-corrugated absorber has been studied experimentally and theoretically. Welding the V-corrugated absorber and the recycle-effect concept to the solar air collector was proposed to strengthen the convective heat-transfer coefficient due to turbulence promotion. Both the recycle effect and the V-corrugated absorbe...
متن کاملAn experimental investigation on the performance of a symmetric conical solar collector using SiO2/water nanofluid
One of the effective methods to improve the thermal efficiency of solar collectors is using nanofluids as the coolant. The present study experimentally investigated the effect of SiO2/water nanofluid with 1% mass fraction on the performance of a symmetric collector, i.e. conical solar collector. The conical solar collector with 1 m2 area and normal to the earth was tested in Ahvaz, a city in th...
متن کاملinvestigation of absorber plate porosity effects on a solar air heater performance with slatted glass
in this research a flat plate solar air collector was investigated under direct solar radiation consisted of a slatted glass cover, perforated absorber aluminum sheets (porosity 0.0177, 0.0314 and absorber thickness of 2.5 mm). the effect of porosity on absorber efficiency of collector was evaluated. six levels of air mass flow rates (0.0056 to 0.0385 kg m-2 s-1) were adopted.average solar ener...
متن کاملThermal Performance of a Double-pass Solar Air Heater
This study analyzes the thermal performance of solar thermal energy using double-pass absorber plate in Sanandaj, Iran. To this end, a mathematical model was encoded according to the energy and exergy balance equations and solved by MATLAB software. Given the environmental conditions and radiation intensity of a winter day in Sanandaj, the effects of external parameters such as radiation intens...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Aerospace Technology and Management
سال: 2023
ISSN: ['2175-9146', '1984-9648']
DOI: https://doi.org/10.1590/jatm.v15.1304