Performance Analysis of Double Pass Solar Air Heater with Bottom Extended Surface

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...

Performance characteristics of a transpired solar air heater

performance of a photovoltaic/thermal solar air heater: effect of vertical fins on a double pass system

the steady state effect of vertical fins is assessed on a photovoltaic/thermal solar air heater having a double pass configuration in which fins are placed in the lower channel perpendicular to the direction ofair flow. air passes through the upper channel of the air heater and before passing in the opposite direction through the lower channel. the effects of design, climatic and operating para...

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...

Double-Pass Flat-Plate Solar Air Heaters with External Recycle

A new device of inserting an absorbing plate to divide a flat-plate channel into two channels with fins attached and external recycling at the ends, resulting in substantially improving the heat transfer efficiency, has been investigated both experimentally and theoretically. The agreement of the theoretical predictions with those measured values from the experimental results is fairly good. Th...