TY - JOUR
T1 - Frosting heat transfer characteristics of evaporators used for household refrigerators according to fin configuration
AU - Lee, Mooyeon
AU - Lee, Sangheon
AU - Jung, Haewon
AU - Kim, Yongchan
AU - Park, Jaejung
PY - 2010/12
Y1 - 2010/12
N2 - The objective of this study is to investigate the heat transfer characteristics of evaporators that have various fin configurations and are used in household refrigerators. The frosting and defrosting characteristics of a spirally coiled circular fin-tube evaporator, a discrete-plate fin-tube evaporator, and a continuous-plate fin-tube evaporator were measured and compared. Under non-frosting conditions, the heat transfer coefficient of the spirally coiled circular fin-tube evaporator was 22.3% and 40.2% higher than the coefficients of the discrete- and continuous-plate fin-tube evaporators, respectively. Under frosting conditions, the heat transfer coefficient of the spirally coiled circular fin-tube evaporator was 27.0% and 46.3% higher than the coefficients of the discrete- and continuous-plate fin-tube evaporators, respectively. In addition, the defrosting water amount of the spirally coiled circular fin-tube evaporator was 3.2% and 9.4% lower than the amounts in the case of the discrete- and continuous-plate fin-tube evaporators, respectively.
AB - The objective of this study is to investigate the heat transfer characteristics of evaporators that have various fin configurations and are used in household refrigerators. The frosting and defrosting characteristics of a spirally coiled circular fin-tube evaporator, a discrete-plate fin-tube evaporator, and a continuous-plate fin-tube evaporator were measured and compared. Under non-frosting conditions, the heat transfer coefficient of the spirally coiled circular fin-tube evaporator was 22.3% and 40.2% higher than the coefficients of the discrete- and continuous-plate fin-tube evaporators, respectively. Under frosting conditions, the heat transfer coefficient of the spirally coiled circular fin-tube evaporator was 27.0% and 46.3% higher than the coefficients of the discrete- and continuous-plate fin-tube evaporators, respectively. In addition, the defrosting water amount of the spirally coiled circular fin-tube evaporator was 3.2% and 9.4% lower than the amounts in the case of the discrete- and continuous-plate fin-tube evaporators, respectively.
KW - Evaporator
KW - Frosting
KW - Heat transfer
KW - Refrigeratory
UR - http://www.scopus.com/inward/record.url?scp=78650350336&partnerID=8YFLogxK
U2 - 10.3795/KSME-B.2010.34.12.1071
DO - 10.3795/KSME-B.2010.34.12.1071
M3 - Article
AN - SCOPUS:78650350336
SN - 1226-4881
VL - 34
SP - 1071
EP - 1078
JO - Transactions of the Korean Society of Mechanical Engineers, B
JF - Transactions of the Korean Society of Mechanical Engineers, B
IS - 12
ER -