Three dimensional CFD analysis of solar air heater for enhancement of thermal performance using surface corrugation

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Abstract

A CFD analysis is carried out in the present work to augment the performance of a solar air heater using absorber plate with different surface corrugations. It is observed from the analysis that an arc-shaped corrugated absorber plate provides better heat transfer characteristics at all mass flow rates when compared to base model without corrugations. However, the V-shaped corrugated absorber plate provides better heat transfer rate at higher mass flow rates and a sine wave corrugated absorber plate provides effective heat transfer at lower mass flow rates. It is generally found that absorber plate with corrugated geometry helps to increase the Nusselt number of the air medium which in turn helps in enhanced convective heat transfer to the medium.

Original languageEnglish
Pages (from-to)851-855
Number of pages5
JournalInternational Journal of Earth Sciences and Engineering
Volume6
Issue number4
Publication statusPublished - 01-01-2013

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heat transfer
Computational fluid dynamics
Heat transfer
Flow rate
air
Air
Nusselt number
geometry
Geometry
Hot Temperature
analysis
rate
heater

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Civil and Structural Engineering
  • Building and Construction
  • Ocean Engineering
  • Earth and Planetary Sciences(all)

Cite this

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title = "Three dimensional CFD analysis of solar air heater for enhancement of thermal performance using surface corrugation",
abstract = "A CFD analysis is carried out in the present work to augment the performance of a solar air heater using absorber plate with different surface corrugations. It is observed from the analysis that an arc-shaped corrugated absorber plate provides better heat transfer characteristics at all mass flow rates when compared to base model without corrugations. However, the V-shaped corrugated absorber plate provides better heat transfer rate at higher mass flow rates and a sine wave corrugated absorber plate provides effective heat transfer at lower mass flow rates. It is generally found that absorber plate with corrugated geometry helps to increase the Nusselt number of the air medium which in turn helps in enhanced convective heat transfer to the medium.",
author = "{Vasudeva Karanth}, K. and Manjunath, {M. S.} and {Yagnesh Sharma}, N.",
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AU - Vasudeva Karanth, K.

AU - Manjunath, M. S.

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AB - A CFD analysis is carried out in the present work to augment the performance of a solar air heater using absorber plate with different surface corrugations. It is observed from the analysis that an arc-shaped corrugated absorber plate provides better heat transfer characteristics at all mass flow rates when compared to base model without corrugations. However, the V-shaped corrugated absorber plate provides better heat transfer rate at higher mass flow rates and a sine wave corrugated absorber plate provides effective heat transfer at lower mass flow rates. It is generally found that absorber plate with corrugated geometry helps to increase the Nusselt number of the air medium which in turn helps in enhanced convective heat transfer to the medium.

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