Thermal modeling, analysis, and design

Zhang, Hengyun; Che, F.X.; Lin, Tingyu; Zhao, Wensheng

doi:10.1016/b978-0-08-102532-1.00003-2

Cited by 7 publications

(1 citation statement)

References 34 publications

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“…The heat transfer in MCHS is influenced by various factors, including characteristic length, inlet conditions, flow regime, and material properties. [24,41,42] The above parameters are considered while designing the investigated heat sinks. For all investigated MCHS, the heat sink's thickness was 500 μm, while the minichannel heat sink had a thickness of 12 mm.…”

Section: Heat Sink Configurationmentioning

confidence: 99%

Integrated Model for Comprehensive Performance Investigation of Solar Concentrated Photovoltaic‐Thermal System Embedded with Microchannel Heat Sinks

Chaurasia,

Reddy

2024

Energy Tech

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Concentrated photovoltaic (CPV) is a well‐established renewable energy technology. A significant challenge in CPV systems is their low efficiency, majorly due to localized heating yielded from concentration, often requiring the use of cooling systems. The accurate performance analysis and cooling system design for CPV systems require a multiphysics model. Herein, an integrated optical–thermal–electrical model is proposed for the performance evaluation of CPV systems incorporated with different configurations of microchannel heat sinks. The heat sink configuration includes 116 parallel and counter microchannels (Configuration A and B), a single wide microchannel (Configuration C), and single wide minichannel (Configuration D) heat sinks. This study involves 3D Monte‐Carlo ray tracing, finite volume method, and cell‐based electrical modeling. The results indicate that the flux profile over the absorber is highly nonuniform in nature. Furthermore, the CPV system with a Configuration C heat sink achieves a better uniformity in temperature, providing an optimized thermal performance of 64.63%. Moreover, the integrated model considers the impact of PV cell current mismatch that becomes prominent at increasing incidence angles. A maximum deviation of 6.9% in electrical power is obtained while comparing predicted numerical results against experimental results available in literature.

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Section: Heat Sink Configurationmentioning

confidence: 99%