TY - JOUR
T1 - Air-side data interpretation and performance analysis for heat exchangers with simultaneous heat and mass transfer
T2 - Wet and frosted surfaces
AU - Xia, Yanping
AU - Jacobi, Anthony M.
N1 - Funding Information:
This work received financial support from the Air-Conditioning and Refrigeration Technology Institute (ARTI) under 21-CR, Elizabeth Jones program director, and from the Air Conditioning and Refrigeration Center, an NSF-founded Industry-University Cooperative Research Center. Their support is gratefully acknowledged.
PY - 2005/12
Y1 - 2005/12
N2 - Data reduction methods for wet- and frosted-surface heat exchangers are reviewed, and logarithmic-mean temperature difference (LMTD) and logarithmic-mean enthalpy difference (LMED) methods for data interpretation are formulated, including fin efficiency expressions for flat-tube heat exchangers with constant-area fins. With these improved formulations for data interpretation in place, the two methods are compared using a numerical simulation of a flat-plate heat exchanger. For all conditions considered-spanning wet and frosted surfaces-the new UA-LMTD method provides the air-side convective heat transfer coefficient to within 3% and is more accurate than the HA-LMED method, which results in large errors under some conditions.
AB - Data reduction methods for wet- and frosted-surface heat exchangers are reviewed, and logarithmic-mean temperature difference (LMTD) and logarithmic-mean enthalpy difference (LMED) methods for data interpretation are formulated, including fin efficiency expressions for flat-tube heat exchangers with constant-area fins. With these improved formulations for data interpretation in place, the two methods are compared using a numerical simulation of a flat-plate heat exchanger. For all conditions considered-spanning wet and frosted surfaces-the new UA-LMTD method provides the air-side convective heat transfer coefficient to within 3% and is more accurate than the HA-LMED method, which results in large errors under some conditions.
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U2 - 10.1016/j.ijheatmasstransfer.2005.08.008
DO - 10.1016/j.ijheatmasstransfer.2005.08.008
M3 - Article
AN - SCOPUS:27844568524
SN - 0017-9310
VL - 48
SP - 5089
EP - 5102
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
IS - 25-26
ER -