Factors influencing the performance of solar air heater (SAH) having artificial coarseness: a review

Performance characteristics of a transpired solar air heater

Thermal 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...

Investigating The Parameters For The Performance Enhancement Of A Solar Air Heater Having Different Artificially Roughened Geometries

The use of an artificial roughness on a surface of absorber plate is an effective technique to enhance the rate of heat transfer to fluid flow in the duct of a solar air heater. This paper presents a comparison of parameters that enhance the heat transfer coefficient thus efficiency ofa solar air heater for different artificially roughened geometries for the Reynolds number from 2500 -18000. Th...

Factors Influencing the Use of Prenatal Care: A Systematic Review

Background & aim: Prenatal care is a key strategy for achieving public health goals, primary healthcare objectives, and the Millennium Development Goals. The aim of this study was to investigate the factors influencing the use of prenatal care services in order to design suitable interventions and promote the use of these services. Methods:In this systematic quantitative literature review, stud...

investigation 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...