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Research and Accuracy Analysis on Engineering Quantity Calculation of a Projected Building by BIM Software Read chapter Read first chapter

2020 | OriginalPaper | Chapter

The Influence of Interfacial Thermal Contact Resistance on Cooling Performance of the Large Inertia Wall in Nuclear Power Plant

Authors : Xiaoyan Wu, Xu Zhang

Published in: Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019)

Publisher: Springer Singapore

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Abstract

The cooling performance of the heat sink wall within a limited time is a main factor to ensure the thermal environment of the main control room (MCR) under accident conditions in CAP series nuclear power plant. To analyze the effects of thermal contact resistance (TCR) on the cooling performance, we propose a three-dimensional unsteady heat transfer model, which couples the resistance–capacity (RC) method and finite difference method and is validated by experiments. The results show that compared to the ones that ignored TCR, when the value is 10−4, 10−3 and 10−2 m2 °C W−1, the cooling capacity is reduced by 1%, 1.7% and 4%, respectively. Furthermore, the maximum cooling release rate is reduced by 5.46, 5.93 and 11.42% with the time lag 8 min, 9 min and 21 min, respectively. Therefore, the reliability of the safety performance of the MCR under accident conditions can be overestimated if the TCR is not considered.

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Metadata
Title
The Influence of Interfacial Thermal Contact Resistance on Cooling Performance of the Large Inertia Wall in Nuclear Power Plant
Authors
Xiaoyan Wu
Xu Zhang
Copyright Year
2020
Publisher
Springer Singapore
Book
Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019)

Print ISBN: 978-981-13-9527-7

Electronic ISBN: 978-981-13-9528-4

Copyright Year: 2020

DOI
https://doi.org/10.1007/978-981-13-9528-4_105