Annual operating energy savings of liquid desiccant and evaporative-cooling-assisted 100% outdoor air system

Kim, Min‐Hwi; Park, Joon‐Young; Sung, Minki; Choi, An-Seop; Jeong, Jae-Weon

doi:10.1016/j.enbuild.2014.03.006

Cited by 63 publications

(33 citation statements)

References 27 publications

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“…The supply air flow rate is adjusted based on the cooling load required for the conditioning room, which is similar to the working of a conventional VAV system. The operation modes of the LD-IDECOAS are determined based on the outdoor air conditions, which are categorized into four regions (Figure 2) on the psychrometric chart [2]. In region A, the outdoor air is hot and humid.…”

Section: System Overviewmentioning

confidence: 99%

“…In addition to the LD-IDECOAS proposed by Kim et al [1,2], Kozubal et al [8] proposed a desiccant-enhanced evaporative air conditioner (DEVap) for air conditioning common buildings. Buker et al [9] proposed and empirically analyzed a similar air-handling system [1,2,8], which was integrated with a photovoltaic and a thermal roof collector as regeneration heat sources.…”

Section: Introductionmentioning

confidence: 99%

“…Buker et al [9] proposed and empirically analyzed a similar air-handling system [1,2,8], which was integrated with a photovoltaic and a thermal roof collector as regeneration heat sources. Gao et al [10] proposed and evaluated the system performance of a solid-desiccant-enhanced, counter-flow indirect evaporative cooling system.…”

Section: Introductionmentioning

confidence: 99%

“…When the outdoor air is dehumidified in the LD unit, the desiccant solution should be cooled before the absorber and heated before the regenerator [4]. The operation modes of the LD-IDECOAS and each system component have been addressed in the literature [2,3]. In marine applications, conventional vapor-compression systems are typically used as air conditioning systems.…”

Section: Introductionmentioning

confidence: 99%

“…A liquid desiccant and an indirect and direct evaporative cooling-assisted 100% outdoor air system (LD-IDECOAS) has been proposed as an alternative to conventional heating, ventilation, and air conditioning (HVAC) systems [1,2]. The LD-IDECOAS is a non-vapor compression air-conditioning system based on liquid desiccant (LD) and evaporative cooling technologies [3].…”

Section: Introductionmentioning

confidence: 99%

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Operating Energy Savings of a Liquid Desiccant and Evaporative Cooling-Assisted Air-Handling System in Marine Applications

Park¹,

Jeong²

2017

Energies

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Abstract:The aim of this study is to analyze the operating energy savings of a liquid desiccant and an indirect and direct evaporative cooling-assisted 100% outdoor air system (LD-IDECOAS) for marine applications. The LD-IDECOAS comprises a liquid desiccant (LD) unit and indirect and direct evaporative coolers (IEC and DEC) to meet the target supply air (SA) conditions. In this study, seawater was used as the cooling source and the waste heat reclaimed from the engine was used as the heating source in the proposed system. The operating energy of the LD-IDECOAS was determined based on detailed energy simulations conducted on two cabins with an area of 16.5 m 2 , which was compared to a conventional system. The thermal loads on the cabins were estimated using design weather data under various oceanic climate conditions (normal, extremely hot, and extremely cold climates), by adhering to the ISO-7547 standard. The operating energy consumption of the LD-IDECOAS was calculated by modeling the proposed system with a commercial equation solver program (i.e., EES). The results were then compared to those of a conventional constant air volume (CAV) system. The operating energy consumption of the proposed system was reduced by 57-70% in cooling operations and 39% in heating operations under normal climate conditions. In the extremely hot climate regions, the energy consumed by the proposed system was reduced by 56-63% for cooling applications and 39% for heating applications.

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Section: System Overviewmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Operating Energy Savings of a Liquid Desiccant and Evaporative Cooling-Assisted Air-Handling System in Marine Applications

Park¹,

Jeong²

2017

Energies

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Emerging Energy Efficient Thermally Driven HVAC Technology: Liquid Desiccant Enhanced Evaporative Air Conditioning

Rafique

Gandhidasan

2016

Desiccant Heating, Ventilating, and Air-Conditioning Systems

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Adsorption air conditioning: a comprehensive review in desiccant materials, system progress, and recent studies on different configurations of hybrid solid desiccant air conditioning systems

Abdelgaied

Saber

Bassuoni

et al. 2023

Environ Sci Pollut Res

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The desiccant air conditioning system has multiple advantages (e.g., no use of ozone-depleting refrigerants, highly efficient moisture control, easy regenerative integration) over traditional vapor-compression refrigeration systems, thus increasingly attracting more research interest. Recently, several studies have been conducted that primarily aimed to enhance the overall performance of desiccant air conditioners by innovating new desiccant materials, innovating new system configurations and improving system designs and controls, and integrating different hybrid energy sub-systems technologies. Therefore, this paper provides a comprehensive review of the studies mentioned earlier. The present comprehensive review dealt with several axes: first, an overview of the importance of using desiccant air conditioners and their operations, and performance indicators. Second, a summary statement for desiccant materials that includes: the new innovative desiccant materials and the most important composite desiccant materials. Third, detailed information on the newest innovative designs and configurations of desiccant air conditioning systems and their control systems. Fourth, a detailed statement on the most important hybrid energy sub-systems technologies integrated with desiccant air conditioners. Based on the latest developments in desiccant air conditioning systems, this study presents discussions of urgent issues and recommendations for future work that can help focus necessary efforts to find solutions to critical and pending problems, which lead to further improvements in the overall performance of desiccant air conditioners.

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Annual operating energy savings of liquid desiccant and evaporative-cooling-assisted 100% outdoor air system

Cited by 63 publications

References 27 publications

Operating Energy Savings of a Liquid Desiccant and Evaporative Cooling-Assisted Air-Handling System in Marine Applications

Operating Energy Savings of a Liquid Desiccant and Evaporative Cooling-Assisted Air-Handling System in Marine Applications

Emerging Energy Efficient Thermally Driven HVAC Technology: Liquid Desiccant Enhanced Evaporative Air Conditioning

Adsorption air conditioning: a comprehensive review in desiccant materials, system progress, and recent studies on different configurations of hybrid solid desiccant air conditioning systems

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