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The impact of thermodynamic balancing on performance of a desiccant-based humidification-dehumidification system to harvest freshwater from atmospheric air

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Abstract The thermodynamic balancing is a powerful tool to minimize the entropy generation in a thermal system. This tool is investigated to thermodynamically balance a novel desiccant-based humidification-dehumidification (HDH) system… Click to show full abstract

Abstract The thermodynamic balancing is a powerful tool to minimize the entropy generation in a thermal system. This tool is investigated to thermodynamically balance a novel desiccant-based humidification-dehumidification (HDH) system by extracting the recirculated air. It is carried out for a zero, single, double, triple, quadruple, quintuple, and infinity extractions. The HDH system is incorporated with a number of air dryers to produce freshwater from the humid air. An enthalpy pinch, which is described as the minimum air-to-desiccant enthalpy difference, is used as an index to approach the system thermodynamic balancing. For small values (

Keywords: desiccant based; system; based humidification; air; thermodynamic balancing; humidification dehumidification

Journal Title: Energy Conversion and Management
Year Published: 2019

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