Parameter optimization of solar air collectors with holes on baffle and analysis of flow and heat transfer characteristics

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

“…According to the results, the average thermal efficiencies of the parallel‐pass, double‐pass, and V‐grooved SACs were 54%–60.29%, 61.86%–66.95%, and 70.91%–78.18%, respectively. Hu et al 41 investigated the effect of using perforated baffles in SACs on thermal performance. Analysis of variance revealed that the air intake speed and hole size were important elements for thermal performance.…”

Turbulent flows around rectangular and triangular turbulators in baffled channels a computational analysis

“…Due to the significance of its application in various heat exchanger devices such heat exchanger ducts and solar receiver tubes, the study of fluid-flow are one of the fundamental axis of many contemporary studies. For instance, see Saravanakumar et al [1], Li et al [2], Rashidi et al [3], Hu et al [4], Daliran and Ajabshirchi [5], Du et al [6], Kumar and Layek [7], Kumar et al [8], Abdullah et al [9], and Chamoli et al [10], as seen in tab. 1.…”

“…Li et al [2] Optimization of the thermal performance of turbulent flow in a channel with multiple V-shaped baffles using numerical simulation Rashidi et al [3] Nanofluid-flow inside a square duct with transverse twisted baffles is studied in three dimensions using numerical thermo-hydrodynamics and second-order analysis Hu et al [4] Analyzing the characteristics of flow and heat transfer while optimizing the parameters of solar air collectors with holes on the baffle Du et al [5] The thermal-hydraulic performance of new sinusoidal rib tubes with different geometric characteristics was investigated Daliran and Ajabshirchi [6] Effect of fin attachment on solar air collector operating parameters and thermal efficiency: theoretical and experimental investigation Kumar and Layek [7] The purpose of the experiment is to test the effectiveness of using a brand-new artificial roughness on the absorber plate of a rectangular duct Kumar et al [8] Comparison of the effects of different obstruction configurations on the thermal hydraulic performance in a roughened air route V-baffle with gaps (for example)…”

A comparative study on the performance of a novel triangular solar air collector with tilted transparent cover plate

“…In rural areas of northern China, the traditional coal-fired heating is gradually replaced by clean energy to reduce the emissions of pollutants in winter (Deng et al, 2021). The solar air collector (SAC) is widely adopted in rural residence as an auxiliary heating measure (Hu et al, 2018), due to its advantages in simple-structure, low-costs and durability. As the air is taken as the heat transfer fluid, the risks of freezing and leakage are avoided (Zhang et al, 2021).…”