Open AccessReview regarding defrosting methods for refrigeration and heat pump systems
Author(s) -
J Al Douri,
Kamel Sigar Hmood,
Valentin Apostol,
Horaţiu Pop,
Saleh Jassim Saleh ALQAISY,
Elena Beatrice Ibrean
Publication year - 2021
Publication title -
e3s web of conferences
Language(s) - English
Resource type - Journals
eISSN - 2555-0403
pISSN - 2267-1242
DOI - 10.1051/e3sconf/202128601012
Subject(s) - defrosting , refrigeration , process engineering , energy consumption , heat exchanger , environmental science , mechanical engineering , materials science , computer science , automotive engineering , engineering , electrical engineering
The paper presents a literature review regarding defrosting methods for household refrigeration and heat pumps. The literature review covers the period between 2008 and 2020. A number of 61 papers have been studied. The literature review was conducted by dividing the defrost methods into passive and active. Passive methods involve surface coating and off-cycle. The active defrost methods involve reverse cycle, ultrasonic vibration, hot–gas defrost, electric heating and hot fluid. Surface coating and ultrasonic vibration are recent defrost methods proposed in the literature. Also, recently, phase change materials have been used in household refrigerators to improve their efficiency. This is a topic that needs further investigation and is a subject of interest as it can lead to lower energy consumption during defrost cycles. From the present study, the research direction regarding the use of PCMs in defrost cycles can be highlighted.