An air-conditioning system performance enhancement by using heat pipe based heat recovery technology

In the present study, the impact of heat pipe based heat exchangers (hphex) on theperformance of an air-conditioning system in a library building was investigated. according to thefieldwork study, the air conditions established by the existing system are not within the comfort zonerecommended by the ashrae. therefore, enhancing the performance of the existing system by addinghphex was studied. hphex with different numbers of rows were examined in the system to determinethe proper configuration. trnsys software was used to investigate the hourly effect of hphex on thesystem in terms of provided air conditions and energy consumption. according to the results, the systembehavior in terms of provided air conditions is appropriate and marginally inside the comfort area withthe added eight-row hphex. in addition, it was shown that by adding hphex to the system, a significantamount of energy recovery could be achieved.