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In this paper, performance analysis has been conducted to evaluate the regenerator with heat recovery in Liquid Desiccant Dehumidification System (LDDS) under different air mass flow rate. The waste heat of the exhausted regenerating air is recovered by a fixed-plate heat exchanger (FPHE). A hybrid model has been proposed for the heat recovery process and combined with the regenerating heat and mass...
In this paper, a hybrid model for heat pipe heat exchanger used for heat recovery in regenerator of Liquid Desiccant Dehumidification System (LDDS) is developed. The proposed hybrid model starts from the physical governing equations and lumps the complex geometric parameters and fluids’ thermodynamic coefficients as constants since they have very small changes during the process operation. The resulting...
Distributed operating of Liquid Desiccant Dehumidification System (LDDS) increases the flexibility in system operation, allowing one regenerator to handle multiple dehumidifier units. To meet the requirement of this operating scheme, a soft-sensor is developed for the real-time measurement of the desiccant solution concentration. A physical model of mass transfer rate in the dehumidifier is employed...
This paper presents a study on dynamic properties of mass transfer in dehumidifier of a Liquid Desiccant Dehumidification Systems (LDDS) through modeling, simulation analysis and experiment validation. As a vital component of air-conditioning system, LDDS can remove the moisture in process air. Based on the mass conservation principles, a dynamic model is developed to predict the humidity of the outlet...
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