Enhancement of thermal efficiency of nanofluid flows in a flat solar collector using CFD

Abstract

Flat plate solar collector (FPSC) is popular for their low cost, simplicity, and ease of installation and operation. In this work, FPSC thermal performance was analyzed. It's compared to diamond/H2O nanofluids. The volume percentage and kind of nanoparticles are analyzed numerically that validation with experimental data available in the literature. The hot climate of Iraq is employed to approximate the model. The numerical study is performed by using ANSYS/FLUENT software to simulate the case study of problem. Due to less solar intensity after midday, temperatures reduction. The greatest collector thermal efficiency is 68.90% with 1% ND/water nanofluid, a 12.2% increase over pure water. The efficiency of 1% nanofluid is better than other concentrations because of a change in physical properties and an increase in thermal conductivity. Since the intensity of radiation affects the outlet temperature from the solar collector and there is a direct link between them, this increases the efficiency of the solar collector, especially around 12:30 pm at the optimum efficiency.

Evaluation of Heat Transfer and Fluid Dynamics across a Backward Facing Step for Mobile Cooling Applications Utilizing CNT Nanofluid in Laminar Conditions

“…The study explored pressured convection with Al2O3/water nanofluid interior a horizontal duct with a BFS. The Nusselt range rose with better Reynolds numbers and increasing nanoparticle volume fractions as indicated from the previous observe [15]. Investigating float and warmth switch properties, a computational model analysed blended convective laminar fluid float over a 3dimensional MBFS with a Reynolds variety of 35.…”

Assessing the efficacy of flat-plate solar collectors using nanofluids in the climatic context of Kirkuk city, Iraq

“…By maintaining a 2cm gap between the glass and the absorbing plate, the researcher found that doubling the glass plates' arrangement doubled the efficacy of the flat-solar collector as compared to a single glass plate. Zarda et al [12] studied the thermal performance of flat-plate solar collectors (FPSCs), which are known for their cost-effectiveness, simplicity, and ease of use. They focused on improving the efficiency of these collectors by introducing diamond/H 2 O nanofluids, a type of fluid containing tiny diamond particles.…”