TY - JOUR
T1 - Experimental investigations on thin polymer desiccant wheel performance
AU - Cao, Tao
AU - Lee, Hoseong
AU - Hwang, Yunho
AU - Radermacher, Reinhard
AU - Chun, Ho Hwan
N1 - Funding Information:
This work was supported by sponsors of the CEEE, University of Maryland, College Park, MD, USA and partially supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) through GCRC-SOP (Grant No. 2012-0004782 ).
PY - 2014/8
Y1 - 2014/8
N2 - In this study, the performance of a new polymer desiccant wheel (DW), which can be used for dehumidification in a solid desiccant cooling system, was investigated. In order to investigate the compact design of the DW for compact cooling system, DWs were evaluated at four levels of thickness while varying the inlet air temperature, humidity ratio, regeneration temperature, and rotational speed. It was found that lower inlet air temperature and higher humidity ratio are in favor of better DW performance. Higher regeneration temperature (60 °C) would bring a reduced marginal benefit in terms of latent coefficient of performance (COPlatent). Test results also indicate that the optimum rotational speed decreases while DW thickness increases. Three thin DWs (30, 50 and 70 mm) were compared with the typical thick DW (150 mm) and it was found that 50 and 70 mm DWs have the potentials in the compact cooling system with the maximum moisture removal capacity (MRCmax) based on specific volume (MRCmax/DW Volume) 1.2 and 0.7 times higher than that of 150 mm DW, respectively. In addition, the maximum COPlatent of 50 and 70 mm DW can be up to 0.45 and 0.5, respectively.
AB - In this study, the performance of a new polymer desiccant wheel (DW), which can be used for dehumidification in a solid desiccant cooling system, was investigated. In order to investigate the compact design of the DW for compact cooling system, DWs were evaluated at four levels of thickness while varying the inlet air temperature, humidity ratio, regeneration temperature, and rotational speed. It was found that lower inlet air temperature and higher humidity ratio are in favor of better DW performance. Higher regeneration temperature (60 °C) would bring a reduced marginal benefit in terms of latent coefficient of performance (COPlatent). Test results also indicate that the optimum rotational speed decreases while DW thickness increases. Three thin DWs (30, 50 and 70 mm) were compared with the typical thick DW (150 mm) and it was found that 50 and 70 mm DWs have the potentials in the compact cooling system with the maximum moisture removal capacity (MRCmax) based on specific volume (MRCmax/DW Volume) 1.2 and 0.7 times higher than that of 150 mm DW, respectively. In addition, the maximum COPlatent of 50 and 70 mm DW can be up to 0.45 and 0.5, respectively.
KW - Desiccant wheel
KW - Experimental study
KW - Latent coefficient of performance
KW - Moisture removal capacity
UR - http://www.scopus.com/inward/record.url?scp=84903629779&partnerID=8YFLogxK
U2 - 10.1016/j.ijrefrig.2014.05.004
DO - 10.1016/j.ijrefrig.2014.05.004
M3 - Article
AN - SCOPUS:84903629779
SN - 0140-7007
VL - 44
SP - 1
EP - 11
JO - International Journal of Refrigeration
JF - International Journal of Refrigeration
ER -