Energy saving potential of liquid desiccant in evaporative-cooling-assisted 100% outdoor air system

Kim, Min‐Hwi; Park, Jun‐Seok; Jeong, Jae-Weon

doi:10.1016/j.energy.2013.07.018

Cited by 84 publications

(57 citation statements)

References 28 publications

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“…Based on ISO-7547, the transmission heat losses and gains for each marine space surface can be calculated using Equation (1). To estimate the heat transmission through the external deck and window, the total heat transfer coefficients of the external deck and window were assumed to be 0.9 and 3.5 kW/m 2 K, respectively.…”

Section: Thermal-load Calculationmentioning

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%

“…Subsequently, the sensible cooling load of the outdoor air is accommodated using the indirect evaporative cooler (IEC) and/or the direct evaporative cooler (DEC) [1]. 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].…”

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: Thermal-load Calculationmentioning

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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Developments in liquid desiccant dehumidification system integrated with evaporative cooling technology

Kalpana

Subudhi

2021

Intl J of Energy Research

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The vapor compression air conditioning (VCAC) is the most widely used method for space cooling. However, it has some disadvantages, such as the fact that it consumes more electricity, depletes the ozone layer, and contributes to global warming. The liquid desiccant system using an evaporative cooler is a better replacement for a VCAC because it is cost-effective and environmentally sustainable. This paper initially introduces the fundamental principles of desiccant cooling and different types of liquid desiccant systems. Then, the desiccant systems using evaporative coolers are comprehensively reviewed. Finally, the assessment of system performances by different researcher's works is evaluated. It is observed from the review work that the liquid desiccant cooling system (LDCS) using an evaporative cooler could save energy consumption compared to VCAC. Highlights• Liquid desiccant dehumidifiers integrated with evaporative coolers are discussed.• LD dehumidifier integrated with evaporative cooler is an energy-efficient alternative in hot and humid areas.• DEVap system saves 2% to 3% of the annual energy.• The use of an LD dehumidifier in conjunction with an M-cycle IEC increases dehumidification.

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Enhancing the cooling potential of a solar-assisted desiccant cooling system by ground source free cooling

et al. 2020

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Energy saving potential of liquid desiccant in evaporative-cooling-assisted 100% outdoor air system

Cited by 84 publications

References 28 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

Developments in liquid desiccant dehumidification system integrated with evaporative cooling technology

Enhancing the cooling potential of a solar-assisted desiccant cooling system by ground source free cooling

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