Premium
Performance of a modified direct expansion A/C unit
Author(s) -
Mokheimer Esmail M. A.,
Said Syed. A. M.
Publication year - 2009
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.1631
Subject(s) - evaporator , refrigerant , chiller , coefficient of performance , heat exchanger , cooling capacity , thermal expansion valve , unit (ring theory) , heat transfer coefficient , air conditioning , engineering , thermodynamics , nuclear engineering , water chiller , mechanical engineering , heat transfer , physics , mathematics , mathematics education
Abstract This technical note communicates the thermal performance of a modified ten‐Ton Refrigerant Direct Expansion (10‐TR DX) air conditioning unit into a chiller under actual operating conditions. The modified unit achieved higher COP and cooling capacity compared with conventional DX. The increase in the unit cooling capacity is basically attributed to the enhanced heat transfer coefficient of the Plate‐and‐Frame Heat Exchanger evaporator. Copyright © 2009 John Wiley & Sons, Ltd.