Results 211 to 220 of about 379 (257)
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Analytical modeling of a desiccant wheel
International Journal of Refrigeration, 2014Abstract A simple integral model is presented for a desiccant wheel. The original governing equations for a desiccant wheel were simplified to a set of linear ordinary differential equations and an analytical solution was obtained. A brief analysis is given about the solution regarding the non-dimensional numbers that decide the behavior of a ...
Dae-Young Lee, Dong-Seon Kim
exaly +2 more sources
Performance investigation of an internally cooled desiccant wheel
Applied Energy, 2018Abstract Desiccant wheels are commonly used to dehumidify air in air-conditioning system to reduce the energy consumption. The objective of this study was to design, test and analyse the performance of a novel tube-shell, internally water-cooled desiccant wheel.
Mark Goldsworthy, Alistair Sproul
exaly +2 more sources
Effect of operating parameters of desiccant wheel on the performance of solar desiccant dehumidifier
Environmental Progress and Sustainable EnergyAbstractTo produce dry air, desiccant wheel is a very common choice now a day. However, it's crucial to utilize the desiccant wheel effectively. Therefore, in the present investigation, a numerical model is developed to identify the best operating conditions for a solar desiccant dehumidifier based on desiccant wheel and it is observed that the ...
, Pravesh Kumar Kushwaha
exaly +2 more sources
Limiting performance mechanisms in desiccant wheel dehumidification
Applied Thermal Engineering, 2012Abstract Desiccant cooling is an environmentally attractive alternative to conventional mechanical air-conditioning. The heart of the process is the rotary desiccant wheel which is used to dehumidify air. Recent experimental measurements of wheels with proposed alternative materials at low regeneration temperatures ( Here a numerical model of a ...
Mark Goldsworthy
exaly +2 more sources
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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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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
openaire +2 more sources