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Dehumidification Potential of a Solid Desiccant Based Evaporative Cooling System with an Enthalpy Exchanger Operating in Subtropical and Tropical Climates

Author

Listed:
  • Ramadas Narayanan

    (School of Engineering and Technology, Central Queensland University, 6 University Drive, Bundaberg, QLD 4670, Australia)

  • Edward Halawa

    (School of Engineering and Technology, Central Queensland University, 6 University Drive, Bundaberg, QLD 4670, Australia
    Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia)

  • Sanjeev Jain

    (Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110 016, India)

Abstract

The technical and economic attractiveness of a solid desiccant based evaporative cooling system depend on several factors: Configuration of the system components and their individual performance, availability of cheap but reliable regeneration heat source. In the tropical and subtropical regions, the air conditioning systems are expected to address not only the sensible loads but also, and most importantly—the loads due to higher outside humidity levels that can severely affect the thermal comfort of the building occupants. This paper reports on the dehumidification potentials of solid desiccant based evaporative cooling systems with an enthalpy exchanger operating in subtropical and tropical climates. In particular, the study presents the cooling and dehumidification capabilities of the enthalpy exchanger observed through the impact of its sensible and latent effectiveness on the thermal comfort of the conditioned space. The key performance indicators are split into two groups: (1) the thermal comfort of the conditioned space, and (2) the coefficient of performance. It was found that this cooling system with enthalpy exchanger performed better than the one without enthalpy exchanger in terms of dehumidification; however, the impact depends on the climate where the system operates.

Suggested Citation

  • Ramadas Narayanan & Edward Halawa & Sanjeev Jain, 2019. "Dehumidification Potential of a Solid Desiccant Based Evaporative Cooling System with an Enthalpy Exchanger Operating in Subtropical and Tropical Climates," Energies, MDPI, vol. 12(14), pages 1-18, July.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:14:p:2704-:d:248581
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    References listed on IDEAS

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    1. Ramadas Narayanan & Edward Halawa & Sanjeev Jain, 2018. "Performance Characteristics of Solid-Desiccant Evaporative Cooling Systems," Energies, MDPI, vol. 11(10), pages 1-14, September.
    2. Yunlong Ma & Suvash C. Saha & Wendy Miller & Lisa Guan, 2017. "Comparison of Different Solar-Assisted Air Conditioning Systems for Australian Office Buildings," Energies, MDPI, vol. 10(10), pages 1-27, September.
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    Cited by:

    1. Shuo Liu & Chang-Ho Jeong & Myoung-Souk Yeo, 2020. "Effect of Evaporator Position on Heat Pump Assisted Solid Desiccant Cooling Systems," Energies, MDPI, vol. 13(22), pages 1-21, November.
    2. Xin Cui & Le Sun & Sicong Zhang & Liwen Jin, 2019. "On the Study of a Hybrid Indirect Evaporative Pre-Cooling System for Various Climates," Energies, MDPI, vol. 12(23), pages 1-16, November.
    3. Win-Jet Luo & Dini Faridah & Fikri Rahmat Fasya & Yu-Sheng Chen & Fikri Hizbul Mulki & Utami Nuri Adilah, 2019. "Performance Enhancement of Hybrid Solid Desiccant Cooling Systems by Integrating Solar Water Collectors in Taiwan," Energies, MDPI, vol. 12(18), pages 1-18, September.
    4. Santu Golder & Ramadas Narayanan & Md. Rashed Hossain & Mohammad Rofiqul Islam, 2021. "Experimental and CFD Investigation on the Application for Aerogel Insulation in Buildings," Energies, MDPI, vol. 14(11), pages 1-16, June.
    5. Elena Belyanovskaya & Miroslav Rimár & Roman D. Lytovchenko & Miroslav Variny & Kostyantyn M. Sukhyy & Oleksandr O. Yeromin & Mikhailo P. Sykhyy & Elena M. Prokopenko & Irina V. Sukha & Mikhailo V. Gu, 2020. "Performance of an Adsorptive Heat-Moisture Regenerator Based on Silica Gel–Sodium Sulphate," Sustainability, MDPI, vol. 12(14), pages 1-15, July.
    6. Ramadas Narayanan & Abeer Abdullah Al Anazi & Roberto Pippia & Mohammad G. Rasul, 2022. "Solar Desiccant Cooling System for a Commercial Building in Kuwait’s Climatic Condition," Energies, MDPI, vol. 15(11), pages 1-13, June.
    7. Ramadas Narayanan & Subbu Sethuvenkatraman & Roberto Pippia, 2022. "Energy and Comfort Evaluation of Fresh Air-Based Hybrid Cooling System in Hot and Humid Climates," Energies, MDPI, vol. 15(20), pages 1-13, October.

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