Performance analysis of a no-frost hybrid air conditioning system with integrated liquid desiccant dehumidification

Zhang, Li; Dang, Chaobin; Hihara, Eiji

doi:10.1016/j.ijrefrig.2009.08.007

Cited by 92 publications

(24 citation statements)

References 21 publications

(21 reference statements)

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“…In addition, almost no experimental studies have been conducted on the use of a dehumidifier/regenerator under low-temperature and low-humidity air conditions. A liquid desiccant system can be used not only for dehumidification in the summer but also for humidification in the winter [19]. This paper presents results of experimental tests on air dehumidification and desiccant regeneration carried out using a dehumidifier/regenerator with structured packing in the typical operating ranges of air conditioning applications, in the summer and winter modes.…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis of mass transfer in adiabatic structured packing dehumidifier/regenerator with liquid desiccant

Zhang

Hihara

Matsuoka

et al. 2010

International Journal of Heat and Mass Transfer

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102

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Section: Introductionmentioning

confidence: 99%

Experimental analysis of mass transfer in adiabatic structured packing dehumidifier/regenerator with liquid desiccant

Zhang

Hihara

Matsuoka

et al. 2010

International Journal of Heat and Mass Transfer

Self Cite

102

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“…As future work, investigation into the optimization of the desiccant system and the improvement of dehumidification/humidification performance by numerical analysis [11,18] will be accomplished.…”

Section: Discussionmentioning

confidence: 99%

Field Study on Humidification Performance of a Desiccant Air-Conditioning System Combined with a Heat Pump

Kawamoto¹,

Cho

Kohno

et al. 2016

Energies

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A desiccant air-conditioning system was developed as a latent-load-processing air conditioner in a dedicated outdoor air system during the summer. This study investigated the application of this air-conditioning system to humidification during the winter without using make-up water, thereby eliminating the cause of microbial contamination in air-conditioning systems. The experiments were conducted with a system used for summer applications to determine the feasibility of adsorbing vapor from outdoor air and supplying it to an indoor space. The humidification performance, energy efficiency, and operating conditions were examined. Although the conditions were subpar because the experiments were performed with an actual dedicated outdoor air system, the results showed that it is possible to supply air with a minimum humidity ratio of 5.8 g/kg dry air (DA) when the humidity ratio of outdoor air ranges from 1.8 to 2.3 g/kg DA. The minimum humidification performance required for a dedicated outdoor air system was achieved by increasing the airflow rate of the moisture-adsorption side to 2-3 times that of the humidification side. In addition, air leaking from the moisture-adsorption side to the humidification side, improving the mechanical structure, such as by the insulation of the moisture-adsorption side, and an efficient operating method were examined for humidification during the winter.

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“…Armando et al [11] conducted research on novel approach to liquid desiccant assisted cooling for humid environments showing that similar systems have potential to compete with conventional air conditioning units while also being more cost effective and efficient. Li Zhang et al [12] did general research on a hybrid air cooling system using a liquid desiccant. They found that they received an overall 10% increase in efficiency when the liquid desiccant was used to assist in the cooling process.…”

Section: Introductionmentioning

confidence: 99%

Solar assisted liquid desiccant cooling using clay based membranes

et al. 2018

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Abstract. The environmental concerns have led to the urge of the usage of non-conventional energy resources like solar, wind, thermal, geothermal etc. which provide enormous source of energy without causing any further diminution of the environment. Instead of the conventional HVAC systems that cause colossal environmental perils, usage of liquid desiccants in coming in vogue whereby reducing ecological threats. Moreover, solar assisted systems provide further impulse to such systems. This paper discusses about the various comparisons between liquid desiccants: Lithium chloride, Potassium formate and Calcium chloride and concludes that potassium formate is the best desiccant to be used among the three. Potassium formate (HCOOK) is used which is cheaper and less corrosive as compared to the other aqueous salts, and has a negative crystallization temperature. Potassium formate is a new liquid desiccant and thus, not much research is available currently. The weather conditions of Manipal provide an appropriate condition for the experimentations of solar aided liquid desiccant evaporative cooling systems due to its humid climate and intense solar radiation obtained. The small scale experimentation also encounters the problem of liquid desiccant carryover by the air flow, with the help of clay based membranes which are again cheap, environmentally benign and obtained in a facile way. The projected system takes complete advantage of pure solar energy aimed at the regeneration of liquid desiccant.

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Performance analysis of a no-frost hybrid air conditioning system with integrated liquid desiccant dehumidification

Cited by 92 publications

References 21 publications

Experimental analysis of mass transfer in adiabatic structured packing dehumidifier/regenerator with liquid desiccant

Experimental analysis of mass transfer in adiabatic structured packing dehumidifier/regenerator with liquid desiccant

Field Study on Humidification Performance of a Desiccant Air-Conditioning System Combined with a Heat Pump

Solar assisted liquid desiccant cooling using clay based membranes

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