ENERGY CONSUMPTION OF DEFROSTING PROCESS IN NO-FROST REFRIGERATORS

Year 2018, Volume: 4 Issue: 6, 2445 - 2450, 29.09.2018

Fatih Ünal

https://doi.org/10.18186/thermal.465656

Cited By: 2

Abstract

Refrigerators
have high energy consumption because they consume energy throughout the day,
and they are used in all residences and in most offices. Designing more
efficient models and, thus, decreasing the energy consumption of refrigerators
have become necessary, owing to the global energy scarcity. The purpose of this
study was to decrease energy consumption and increase the efficiency of the
defrosting process in no-frost refrigerators. The defrosting process plays an
important role in the energy consumption of no-frost refrigerators. The amount
of energy needed for defrosting and the time it takes are important factors for
manufacturers in terms of energy performance. Recently, a theoretical correlation was developed as a function of
the frost thickness, heat flux, and frost density for estimating the defrosting
time of an evaporator fin surface. The melting time of the frost on the fin was
calculated by a mathematical model and compared to results that were obtained
experimentally. The results were differed from the actual melting time as 4.7%.

Keywords

Energy Consumption of Refrigerator, Defrosting Process, Energy Saving in Refrigerator

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