2020
DOI: 10.1016/j.enconman.2020.113343
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Exergy analysis of dehumidification systems: A comparison between the condensing dehumidification and the desiccant wheel dehumidification

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Cited by 64 publications
(9 citation statements)
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“…Unlike outdoor temperature, which affects the increase rate of energy efficiency, the increase of outdoor humidity can stably improve the energy efficiency of the system. Fenghua Ge et al [22] has proposed from the exergy point of view that the exergy of the system will increase with the increase in the system inlet air humidity, and this paper proved that it has the same trend in terms of energy efficiency. In contrast, for the PTACR system, the energy consumption of the deep-cooling and reheating processes increased due to the increase in outdoor humidity, which resulted in a continuous decrease in the energy efficiency of the PTACR system.…”
Section: Energy Consumption and Performance Of The Hpdc Systemsmentioning
confidence: 71%
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“…Unlike outdoor temperature, which affects the increase rate of energy efficiency, the increase of outdoor humidity can stably improve the energy efficiency of the system. Fenghua Ge et al [22] has proposed from the exergy point of view that the exergy of the system will increase with the increase in the system inlet air humidity, and this paper proved that it has the same trend in terms of energy efficiency. In contrast, for the PTACR system, the energy consumption of the deep-cooling and reheating processes increased due to the increase in outdoor humidity, which resulted in a continuous decrease in the energy efficiency of the PTACR system.…”
Section: Energy Consumption and Performance Of The Hpdc Systemsmentioning
confidence: 71%
“…As shown in Figure 13, although the MRC of the desiccant wheels of the two HPDC systems are different, according to the fitting formula with R 2 values of 0.966 and 0.998, there is a positive power function relationship between the MRC and the condenser heat required to regenerate the desiccant wheel. Chih-Hao Chen et al [22] proposed a linearly proportional relationship between regeneration temperature and MRC and this paper has defined the relationship between MRC and required regeneration heat. Moreover, as the MRC is related to the outdoor humidity ratio, it can be concluded that the DCOP of the desiccant wheel in HPDC systems decreases with increasing the outdoor humidity ratio, as shown in Figure 14.…”
Section: Dehumidification Characteristics Of the Hpdc Systemmentioning
confidence: 99%
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“…In addition, the exergy efficiency of condensation dehumidification is three to four times of that of wheel dehumidification. 4 From the perspective of energy balance, Zhang et al studied the exergy loss of evaporative cooling and dehumidification cooling in direct contact between moist air and water and analyzed the flow direction of thermal exergy and humid exergy. 5 Patel et al proposed a spray drying system with heat recovery function by establishing a mathematical model of mass balance and energy balance.…”
Section: Research Statusmentioning
confidence: 99%
“…[1,2] Conventional dewing-based dehumidification, which cools the air below the dew point to remove moisture (e.g., vapor compression system), has experienced explosive development in the past decades but its shortcoming of indoor air pollution and high energy consumption is gradually revealed facing the goal of carbon neutrality currently. [3,4] Solid desiccants which can remove the moisture above the dew point have emerged and become promising alternatives for humidity regulation. [5,6] Traditional solid desiccants such as silica gel, zeolites, and activated carbon have been extensively and intensively investigated from material research to system integration, and there is rare room for further performance improvement.…”
Section: Introductionmentioning
confidence: 99%