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Performance Analysis of Vacuum Insulation Panels Using Real Gas Equation for Mitigating Solar Heat Gain in Buildings

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New Research Directions in Solar Energy Technologies

Part of the book series: Energy, Environment, and Sustainability ((ENENSU))

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Abstract

Vacuum insulation panels (VIPs) are well known for their low thermal conductivity and are considered to be an effective solution for conserving energy in buildings. The performance of VIP considerably depends upon the geographical conditions, geometrical parameters, and climatic conditions. The ambient conditions such as temperature and relative humidity are the major parameters which degrade the performance of VIPs. The excessive permeation of gas through the barrier envelope disturbs the vacuum maintained inside the VIP, resulting in degradation of the core and reduction in service life. The sol–air temperature plays a key role in analyzing the performance of the VIP. In the present analysis of VIP, Van der Waals equation is used in place of the prevailing ideal gas equation for more precise results. While using Van der Waals equation for the analysis, results do deviate from the previously performed calculations using ideal gas equations. The VIP is then incorporated in the concrete wall and numerical computation of the concrete wall–VIP combination is carried out for Jodhpur city of Rajasthan in India which belongs to hot and dry geographical condition. The optimum location of the VIP is determined to achieve the minimum heat gain through the wall. The heat transfer across the concrete wall–VIP combination signifies the importance of ambient conditions and VIP analysis with the real gas equation.

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Correspondence to Dibakar Rakshit .

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Sood, D., Saikia, P., Pancholi, M., Rakshit, D. (2021). Performance Analysis of Vacuum Insulation Panels Using Real Gas Equation for Mitigating Solar Heat Gain in Buildings. In: Tyagi, H., Chakraborty, P.R., Powar, S., Agarwal, A.K. (eds) New Research Directions in Solar Energy Technologies. Energy, Environment, and Sustainability. Springer, Singapore. https://doi.org/10.1007/978-981-16-0594-9_9

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  • DOI: https://doi.org/10.1007/978-981-16-0594-9_9

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-16-0593-2

  • Online ISBN: 978-981-16-0594-9

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