Influence of the number of stages on the heat source temperature of desiccant wheel dehumidification systems using exergy analysis

Tu, Rang; Liu, Xiaohua; Jiang, Yi; Ma, Fei

doi:10.1016/j.energy.2015.03.099

Cited by 38 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As for sensible heat exchangers, when heat flow capacities ( _ m Á c p ) of the two heat transfer media are the same, temperature differences fields are uniform [30]. In this paper, heat flow capacities of the two heat transfer media for HR are designed the same.…”

Section: Series1 Series2mentioning

confidence: 97%

See 1 more Smart Citation

Performance analysis of ventilation systems with desiccant wheel cooling based on exergy destruction

Liu

Hwang

et al. 2016

Energy Conversion and Management

Self Cite

View full text Add to dashboard Cite

Section: Series1 Series2mentioning

confidence: 97%

“…Exergy analysis has be conducted for desiccant wheel cooling systems [8,9,[11][12][13][14][29][30][31][32]. La et al [8,29] investigated the performances of a ventilation system from the perspective of exergy destructions.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of ventilation systems with desiccant wheel cooling based on exergy destruction

Liu

Hwang

et al. 2016

Energy Conversion and Management

Self Cite

View full text Add to dashboard Cite

“…Humidity control plays a significant role in industry, especially in precision manufacturing . Excess moisture can increase the conductivity of permeable insulators and cause electrical breakdown or even malfunction.…”

Section: Introductionmentioning

confidence: 99%

Performance improvement of electrolytic air dehumidification systems with high‐water‐uptake polymer electrolyte membranes

Zhang

2019

J of Applied Polymer Sci

View full text Add to dashboard Cite

Electrolytic dehumidification with polymer electrolyte membranes (PEMs) is innovative as it enables portable, accurate, and efficient air dehumidification. However, during operation, the dehydration of the PEM results in a severe decrease in its dehumidification performance. In this study, for the purposes of improving the water retention, we developed two types of composite PEMs, Nafion Membrane 212 (N212)-SiO 2 and Nafion-SiO 2 . The hydration parameters (λ; H 2 O-SO 3 H) of N212-SiO 2 and Nafion-SiO 2 were increased by 20-61 and 40-92%, respectively, compared to that of Nafion 212. System experimental results show that in air with a 45% relative humidity, the dehumidification rates of N212-SiO 2 and Nafion-SiO 2 elements improved by 17 and 8%, respectively, and the respective increases in energy efficiency were 22 and 16%. In addition, the effect of the PEM water content on the dehumidification performance was more pronounced than those of other influencing factors such as the proton conduction resistance. The use of high-water-uptake PEMs positively helped optimize the electrolytic dehumidification, especially under low air humidities.

show abstract

“…Ge et al [10] combined DW with conventional heat pump and the evaporator before the DW deals with part of moisture load. Tu et al [11][12][13] combined heat pump with twostage desiccant wheel and intercooling is achieved by adding an additional evaporator between the two DWs. In this system, the two DWs could be regenerated at a relatively low temperature.…”

Section: Introductionmentioning

confidence: 99%

Application of heat pump combined two-stage desiccant wheel fresh air system of residential buildings in mixed climate zone

Tian

2019

E3S Web Conf.

View full text Add to dashboard Cite

The building requires dehumidification for a long period of time in mixed climate zone of China. As a conventional method for dehumidification, vapor compression systems remove the water vapor by cooling the process air below dew point. This system consumes a lot of energy for reheating the air to meet the requirement of supply air temperature. A heat pump combined with two-stage desiccant wheel (TSDW&HP) is proposed as an air conditioning and dehumidification system in this study. The operation performance of proposed system applied in a hypothetical residence with 3 residents was investigated and simulated by using TRNSYS software. The operation modes of the system are discussed for different scenarios of season and outdoor air humidity ratio. In dehumidification season, fresh air deals with all of the latent load. In air conditioning season, fresh air deals with all of the moisture load with part of the cooling load. When evaporation temperature of HP is reduced and more moisture load is processed by evaporator in air conditioning season, there is a balance point between the performance of DWs and heat pump. The energy consumption of TSDW&HP fresh air system was compared with a conventional fresh air conditioner during dehumidification season and air conditioning season. It was found that the energy-saving potential of this system is 27.3% compared with conventional air conditioner.

show abstract

Influence of the number of stages on the heat source temperature of desiccant wheel dehumidification systems using exergy analysis

Cited by 38 publications

References 12 publications

Performance analysis of ventilation systems with desiccant wheel cooling based on exergy destruction

Performance analysis of ventilation systems with desiccant wheel cooling based on exergy destruction

Performance improvement of electrolytic air dehumidification systems with high‐water‐uptake polymer electrolyte membranes

Application of heat pump combined two-stage desiccant wheel fresh air system of residential buildings in mixed climate zone

Contact Info

Product

Resources

About