Performance investigation of solid desiccant evaporative cooling system configurations in different climatic zones

Ali, Muzaffar; Vuković, Vladimir; Sheikh, Nadeem Ahmed; Ali, Hafız Muhammad

doi:10.1016/j.enconman.2015.03.025

Cited by 32 publications

(9 citation statements)

References 28 publications

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“…Experiment results showed that humidity ratio added to the process air could be higher than that removed by the desiccant wheel [23]. Performances can be improved using indirect evaporative coolers [25][26][27][28]. Jain and Dhar [7] found that coefficient of performance (COP) of systems with indirect evaporative coolers was significantly increased to over 1 from below 0.2 of the systems with direct evaporative coolers under constant t reg (130°C).…”

Section: Introductionmentioning

confidence: 93%

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

Liu

Hwang

et al. 2016

Energy Conversion and Management

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Section: Introductionmentioning

confidence: 93%

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

Liu

Hwang

et al. 2016

Energy Conversion and Management

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“…In this study, the supply air temperature could be cooled to around 14 • C when the initial temperature was 35 • C. According to the definition of thermal comfort zone for evaporative cooling applications by ASHRAE, this novel configuration could fully meet comfort conditions in hot and humid areas. Ali et al [73] performed a comprehensive study on the performance evaluation of the desiccant evaporative cooling system with different weather conditions. In this research work, five system configurations, including three standard systems and two modified systems, were assessed under five different climate zones via an equation-based object-oriented modeling and simulation method.…”

Section: Improvement In System Configurationmentioning

confidence: 99%

Evaporative Cooling Integrated with Solid Desiccant Systems: A Review

et al. 2021

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Evaporative cooling technology (ECT) has been deemed as an alternative to the conventional vapor-compression air conditioning system for dry climates in recent years due to its simple structure and low operating cost. Generally speaking, the ECT includes two types of different technologies, direct evaporative cooling (DEC) and indirect evaporative cooling (IEC). Both technologies can theoretically reduce the air temperature to the wet-bulb temperature of outdoor air. The major difference between these two technologies is that DEC will introduce extra moisture to the supply air while IEC will not. The enhanced IEC, Maisotsenko-cycle (M-cyle) IEC, can even bring down the air temperature to the dew point temperature. The ECT integrated with solid desiccant systems, i.e., solid desiccant-assisted evaporative cooling technologies (SDECT), could make the technology applicable to a wider range of weather conditions, e.g., weather with high humidity. In this paper, the recent development of various evaporative cooling technologies (ECT), solid desiccant material and the integration of these two technologies, the SDECT, were thoroughly reviewed with respect to their configuration, optimization and desiccant unit improvement. Furthermore, modeling techniques for simulating SDECT with their pros and cons were also reviewed. Potential opportunities and research recommendations were indicated, which include improving the structure and material of M-cycle IEC, developing novel desiccant material and optimizing configuration, water consumption rate and operation strategy of SDECT system. This review paper indicated that the SDECT system could be a potential replacement for the conventional vapor-compressed cooling system and could be applied in hot and humid environments with proper arrangements.

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“…Different configurations of DEC based on operating cycle were investigated by Ali et al [112] in different Kӧppen climate zones, and results show that performance of ventilated cycle is more suitable in BWh(arid) and Cfa (semiarid), while ventilated Dunkel cycle for Dfb (temperate), Cwa (dry summer), and Csa (subtropical) are weather conditions as shown in Table 5.…”

Section: Comparison-based Studies On Sahdacmentioning

confidence: 99%

Renewable Energy Application for Solar Air Conditioning

Kousar

Ali

Sheikh

et al. 2020

Renewable Energy - Resources, Challenges and Applications

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This chapter presents an overview of various solar air conditioning technologies such as solar PV, absorption, desiccant, and adsorption cooling systems. It includes feasibility and comparative analysis of numerous standalone and hybrid configurations of solar cooling systems, which were investigated in past. In addition, recent developments in use of solar energy as a regeneration source to dehumidify desiccant wheel in different applications are also discussed. Details of system technologies and climate-based performance comparison in terms of various performance factors, for example, COP th ,Q latent ,Q sensible , COP solar , SF, PES, and Ƞ collector for solar-assisted configurations are highlighted. It is observed that hybridization of solar solid desiccant system results more efficient and cost-effective cooling system as latent and sensible loads are treated independently, especially when regeneration process of desiccant wheel is integrated with solar energy. This review will help to explore further improvements in solar-assisted cooling systems.

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Performance investigation of solid desiccant evaporative cooling system configurations in different climatic zones

Cited by 32 publications

References 28 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

Evaporative Cooling Integrated with Solid Desiccant Systems: A Review

Renewable Energy Application for Solar Air Conditioning

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