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Effect of desiccant isotherm on the design parameters of desiccant wheel
Heat and Mass Transfer, 2013A one dimensional mathematical model is developed to optimize the design parameters of desiccant wheel. The result shows that after some value of design parameters, change in moisture removal is negligible. The optimum isotherm shape should be R = 0.1. At this isotherm optimum value of wheel length, and channel pitch should be in the range of 0.2–0.25 ...
Laxmikant Yadav +3 more
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Modeling of Rotary Desiccant Wheels
Chemical Engineering & Technology, 2005AbstractRotary desiccant wheels are widely used in dehumidification and energy recovery applications. In this work, we have developed a 2D, steady state model of a rotary desiccant wheel. Mass and energy balance equations for the air streams and the desiccant wheels were developed. The hydraulic diameter and surface area for heat and mass transfer were
Y. M. Harshe +3 more
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The Performance of Desiccant Wheels for Desiccant Air-Conditioning
2013The performance of the desiccant wheel is critical to the viability of the desiccant cooling process. There have been a number of efforts to develop improved desiccant materials for desiccant wheels. Here, the influence of (1) the desiccant material thermophysical properties, (2) wheel design parameters, and (3) wheel operating conditions on the ...
Mark Goldsworthy, Stephen White
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Experimental investigations on desiccant wheels
Applied Thermal Engineering, 2012Experimental investigations on several commercially available and newly fabricated rotors are conducted in two different laboratories to evaluate performance trends. Experimental uncertainties are analysed and the parameters determining the rotor performance are investigated.
Ursula Eicker +6 more
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A capacitance sensor for the water content of desiccant wheels
2015 9th International Conference on Sensing Technology (ICST), 2015A capacitance sensor was designed to measure the water content in desiccant wheels. 24 AWG (American wire gauge) single conductor wires were constructed to be the probe. Prototype sensors of two probe lengths inserted into the wheel and two numbers of wires were prepared. Four locations of the desiccant wheel were tested to verify if the measured trend
Chen-Kang Huang, Yu-Wei Liu
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Energy and Buildings, 2014 The objectives of this study are to evaluate the performance of desiccant wheel (DW) in the running system and obtain the useful data for practical application.
Ying Sheng, Yuexia Sun, Lei Fang
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Entropy parameters for desiccant wheel design
Applied Thermal Engineering, 2015Abstract In this work a thermodynamic analysis of a desiccant wheel is proposed to investigate and identify the optimum size and operating regime of this device. A steady state entropy generation expression, based on effectiveness parameters suitable for desiccant wheels operability, is obtained applying a control volume approach and assuming perfect
N. Giannetti +3 more
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Simplified Models for the Evaluation of Desiccant Wheels Performance
2016At present interest in building HVAC (Heating, Ventilating and Air Conditioning) systems based on a desiccant wheel is increasing, due to the possibility of realizing high-energy-efficiency systems and of integrating renewable energy sources. The design of air handling units based on this technology is quite complex because of the difficulties in ...
De Antonellis, Stefano +1 more
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Experimental Investigation of a Desiccant Wheel Cycle
Volume 7: Fluids and Heat Transfer, Parts A, B, C, and D, 2012In hot and humid regions, removal of moisture from the air represents a considerable portion of the air conditioning load. Conventionally, air conditioning systems have to lower the air temperature below its dew point to accomplish dehumidification.
Ali Al-Alili +2 more
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Performance Comparison of Enthalpy Recovery Devices Using Liquid Desiccant and Desiccant Wheel
Journal of Thermal Science and Engineering Applications, 2020Abstract Heat recovery between outdoor air and indoor exhaust air is an effective approach for energy-saving in the air-conditioning system. Performances of enthalpy recovery devices using liquid desiccant (LD) and desiccant wheel (DW) are compared in the present study.
Ying Xie, Xiaohua Liu, Tao Zhang
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