Process control strategy and its impact on performance of the cold box of guarded hot box test facility for U-value measurement

Debasish Chowdhury, Rajesh Chatterjee and Subhasis Neogi

International Journal of Energy Technology and Policy, 2016, vol. 12, issue 2, 181-196

Abstract: Overall heat transfer coefficient or thermal transmission coefficient or U-value is an important tool for thermal characterisation of any building material. The guarded hot box test facility is used for evaluation of U-value of any material. In this paper a detailed insight has been given into the overall control strategy to be implemented for maintaining a constant low temperature inside the cold box of a guarded hot box test facility. Thereafter impacts of varying control parameters of the controller on the overall system performance have also been given.

Keywords: guarded hot box; test facility; cold box; proportional integral derivative; PID control; process control; U-value measurement; heat transfer coefficient; thermal characterisation; building materials; constant low temperature. (search for similar items in EconPapers)
Date: 2016
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