Performance investigation on a multi-unit heat pump for simultaneous temperature and humidity control

Hongming Fan, Shuangquan Shao and Changqing Tian

Applied Energy, 2014, vol. 113, issue C, 883-890

Abstract: A multi-unit heat pump is presented for simultaneous humidity and temperature control to improve the energy efficiency and the thermal comfort. Two parallel connected condensers are employed in the system, locating at the back of the indoor evaporator and the outdoor unit, respectively. The heat pump can operate in four modes, including heating, cooling and dehumidification without and/or with partial or total condensing heat recovery. The experimental investigation shows that the temperature control capacity is from 3.5kW for cooling to 3.8kW for heating with the cooling and heating efficiency higher than 3.5kWkW−1, and the dehumidification rate is about 2.0kgh−1 with the efficiency about 2.0kgh−1kW−1. The supply air temperature and humidity can be simultaneously regulated with high accuracy and high efficiency by adjusting the indoor and/or outdoor air volumes. It provides an integrated and effective solution for simultaneous indoor air temperature and humidity control for all-year-round operation in residential buildings.

Keywords: Heat pump; Air conditioner; Dehumidification; Multi-unit; Variable air volume (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (10)

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DOI: 10.1016/j.apenergy.2013.08.043

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