Improving the performance of solar air heater using a new model of V‐corrugated absorber plate having perforations jets

Abstract

Summary An experimental investigation on the performance of a solar air heater (SAH) system has been performed using a new model of v‐corrugated absorber plate having perforations jets. The effectiveness of new model has been compared with the conventional v‐corrugated absorber plate under identical operating conditions to display the effectiveness of new model. The new collector has been referred to Model‐1, whereas the conventional model has been referred to Model‐2. The experimentations have been conducted in December 2020. The results demonstrate that the performance of Model‐1 is considerably higher than Model‐2 by 9%, 11%, and 11.5% for the air mass flowrates 0.01, 0.015, and 0.02 kg/s, respectively. As mass flowrate is increased, the performances of both models have increased, where the highest efficiencies of Model‐1 and Model‐2 have been found 84.5% and 73%, respectively. A substantial difference in temperature has been found in Model‐1 as compared to the rest model. Regardless of the air velocity values, the maximum outlet temperatures have been found in Model‐1, whereas the peak plate temperatures have been observed in Model‐2. The improvement in the performance of Model‐1 confirms that the utilize of perforations jets v‐corrugated absorber plate has an extreme action on the rate of heat transfer.

Numerical investigation of the effect of using louver baffles on thermal performance in solar air collectors

“…It was observed that the honeycomb structure increased the maximum heat transfer to the phase change material by 20% and 25%, respectively, at mass flow rates of 0.02 and 0.04 kg/s. Abd et al 48 experimentally investigated the thermal performance of V‐groove absorber plate SAC with perforated jets. In the study, three different mass flow rates as 0.01, 0.015 and 0.02 kg/s were investigated.…”

A Review on Potential Opportunities to Preheat the Batteries Using a Finned Solar Air Energizer to Enhance Power Quality and Thermal Management in Low-Temperature Surroundings

“…In previous research [6,7], artificially rough wires are added to the absorber plate to disrupt the laminar sublayer formulation. In addition, the rate of heat transmission is increased by affixing V-grooves [8,9], corrugations [10,11], turbulators, and baffles [12,13] to the absorber plate and generating local turbulence. In addition, the packed bed, wire meshes, and energy storage materials are attached to the absorber plate to increase its efficiency during periods of low sunlight [14][15][16][17][18].…”

Experimental study on the performance of solar drying system by using V-corrugated Plate Absorber in the city of Baghdad/Iraq

“…The tests were conducted in both natural and forced convection regimes, and the obtained findings demonstrated that the thermal efficiency of the non-porous and porous solar air heaters (SAHs) reached 81% and 67%, respectively, under forced convection conditions. The empirical study conducted by (Abd et al, 2022a) examined the efficacy of a v-corrugated sheet absorber plate with perforated jets in the context of SHA. The research compared the performance of a novel sheet absorber with that of a conventional corrugated absorber plate.…”

“…The results indicated that Model 2 had the maximum efficiency level, reaching 67%, while Model 1 obtained an efficiency of 60% at a mass flow rate of 0.02 kg/s. The study conducted by (Abd et al, 2022b) aimed to improve the efficiency of solar air heaters (SAHs) by the modification of V-corrugated absorber plates (APs). The researchers concluded that the altered configuration resulted in a 13.2% enhancement in thermal efficiency compared to the standard configuration.…”