Abstract
Experimental Investigation on the performance of Silica Gel Desiccant Wheel. (Dept.M)
Highlights
Nowadays the desiccant wheel (DW) is the heart of HVAC systems to reduce the cooling load and save energy
Maiya et al [2] showed that the dew point temperature of supply air for air conditioning integrated with the DW had a lower value compared with the conventional and reheat system to deliver the air with the same low humidity levels
Angrisani et al [6] studied the influence of the rotational speed on DW performance and the results are used to determine some of the effectiveness parameters such as dehumidification effectiveness, dehumidification coefficient of performance and sensible energy ratio
Summary
Nowadays the DW is the heart of HVAC systems to reduce the cooling load and save energy. After that more energy required to heat the condensed air to obtain a suitable temperature Another method to dehumidify air is the use of a rotating DW that has high capacity to attract moisture the desiccant material passes at two heating and cooling process to dehumidify the air. Heidarinejad and Pasdarshahri [4] and Yamaguchi and saito [5] developed numerical model and compared the numerical results with the experimental data. They showed the impact of the regeneration air temperature, wheel thick-ness, air velocity and rotational speed on the DW performance by measuring the humidity and temperature distribution at the outlet of the process side of the DW. The results showed that there is an optimum operating speed of the wheel to increase its performance
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