Transient simulation of a two-door frost-free refrigerator subjected to periodic door opening and evaporator frosting

Bruno N. Borges, Cláudio Melo and Christian J.L. Hermes

Applied Energy, 2015, vol. 147, issue C, 386-395

Abstract: This paper describes a quasi-steady-state simulation model for predicting the transient behavior of a two-door household refrigerator subjected to periodic door opening and evaporator frosting. A semi-empirical steady-state model was developed for the refrigeration loop, whereas a transient model was devised to predict the energy and mass transfer into and within the refrigerated compartments, and also the frost build-up on the evaporator. The key empirical heat and mass transfer parameters required by the model were derived from a set of experiments performed in-house in a climate-controlled chamber. In general, it was found that the model predictions followed closely the experimental trends for the power consumption (deviations within ±10%) and for the compartment temperatures (deviations within ±2K) when the doors are opened periodically and frost is allowed to accumulate over the evaporator.

Keywords: Household refrigerator; Transient simulation; Door opening; Evaporator frosting (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:147:y:2015:i:c:p:386-395

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DOI: 10.1016/j.apenergy.2015.01.089

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