Thermal performance of desiccant-integrated and conventional Maisotsenko cooling systems in a high humidity tropical climate

Haiqal Irfansyah; Sarwo Edhy Sofyan; Razali Razali

doi:10.30811/jpl.v24i1.7392

Thermal performance of desiccant-integrated and conventional Maisotsenko cooling systems in a high humidity tropical climate

Haiqal Irfansyah, Sarwo Edhy Sofyan, Razali Razali

Abstract

Tropical regions are characterized by a distinctive climate, marked by consistently high temperatures and significant humidity throughout the year. These conditions necessitate the use of cooling systems to ensure thermal comfort. Previous studies have shown that the Maisotsenko cooling system experiences a decline in efficiency when operating in high-humidity environments. Conversely, desiccant systems are effective in reducing air humidity. This study aims to design and experimentally evaluate the performance of a Maisotsenko cooling system under high-humidity tropical conditions, as well as the effect of integrating a desiccant system on its cooling efficiency. The experiments were conducted using a laboratory-scale fabricated test rig, consisting of a Maisotsenko cooling unit with a channel length of 180 mm and a desiccant unit with a channel length of 140 mm. Tests were performed using a standalone Maisotsenko system and a combined Maisotsenko-desiccant system. Air velocity was varied at 3 m/s, 4 m/s, and 5 m/s, with an air ratio of 0.5. The results showed that for the Maisotsenko system without a desiccant, the best cooling performance under high humidity conditions occurred at an air velocity of 3 m/s, achieving a temperature reduction of 1.7°C, a heat transfer rate of 1.4 W, a dew point temperature effectiveness of 27.5%, and a wet-bulb temperature effectiveness of 37.3%. In contrast, the combined system with a desiccant at 3 m/s provided enhanced temperature reduction, dew point effectiveness, and wet-bulb effectiveness of 2°C, 32.4%, and 43.8%, respectively. The highest heat transfer rate, however, was recorded at 5 m/s with a value of 1.9 W. The integration of a desiccant system significantly improved the cooling performance of the Maisotsenko system in terms of temperature reduction, heat transfer rate, and cooling efficiency. At air velocities of 3 m/s, 4 m/s, and 5 m/s, the cooling performance increased by 17.6%, 78.9%, and 366.7%, respectively.

Keywords

Maisotsenko Cooling System; Desiccant System; Efficiency; Tropical Climate; Humidity

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References

C. Hildegardis, A. A. A. O. Saraswati, and N. K. A. Dewi, “Review of Thermal Comfort in Warm Humid Climate for Traditional Architecture in Indonesia,” KnE Soc. Sci., vol. 3, no. 21 SE-Articles, pp. 151–167, Aug. 2019, doi: 10.18502/kss.v3i21.4965.

O. E. Oke, V.A. Uyanga, O.S. Iyasere, F.O. Oke, B.C. Majekodunmi, M.O. Logunleko, J.A. Abiona, E.U. Nwosu, M.O. Abioja, J.O. Daramola, and O.M. Onagbesan, “Environmental stress and livestock productivity in hot-humid tropics: Alleviation and future perspectives,” J. Therm. Biol., vol. 100, p. 103077, 2021, doi:

https://doi.org/10.1016/j.jtherbio.2021.103077.

C. Buonocore, R. De Vecchi, V. Scalco, and R. Lamberts, “Influence of relative air humidity and movement on human thermal perception in classrooms in a hot and humid climate,” Build. Environ., vol. 146, pp. 98–106, 2018, doi: https://doi.org/10.1016/j.buildenv.2018.09.036.

E. M. Saber, K. W. Tham, and H. Leibundgut, “A review of high temperature cooling systems in tropical buildings,” Build. Environ., vol. 96, pp. 237–249, 2016, doi: https://doi.org/10.1016/j.buildenv.2015.11.029.

S. C. R. Rafkin, J. M. Lora, A. Soto, and J. M. Battalio, “The interaction of deep convection with the general circulation in Titan’s atmosphere. Part 1: Cloud resolving simulations,” Icarus, vol. 373, p. 114755, 2022, doi: https://doi.org/10.1016/j.icarus.2021.114755.

M. G. Haile, R. Garay-Martinez, and A. M. Macarulla, “Review of Evaporative Cooling Systems for Buildings in Hot and Dry Climates,” 2024. doi: 10.3390/buildings14113504.

A. Tejero-González and A. Franco-Salas, “Optimal operation of evaporative cooling pads: A review,” Renew. Sustain. Energy Rev., vol. 151, p. 111632, 2021, doi: https://doi.org/10.1016/j.rser.2021.111632.

C. Wani and S. Ghodke, “Performance Analysis of a Maisotsenko Cycle-Based Energy-Efficient Evaporative Air Conditioner,” Int. J. Energy a Clean Environ., vol. 12, no. 2–4, pp. 327–340, 2011, doi:

1615/InterJEnerCleanEnv.2013006192.

Z. Chen, B. C. Wang, L. F. Huang, Z. X. Yang, G. G. Cheng, and D. T. Bui, “Energy-efficient cooling beyond M–cycle: development and evaluation of a two-stage dew-point evaporative cooler,” Appl. Therm. Eng., vol. 280, p. 128031, 2025, doi:

https://doi.org/10.1016/j.applthermaleng.2025.128031.

M. A. Bakhtiari, S. M. Hosseinian, M. Tohidloo, A. Mokhtari, and H. Soroush, “Energy-efficient hybrid cooling system: Integrating direct and indirect evaporative cooling with the Maisotsenko cycle,” Results Eng., vol. 28, p. 108056, 2025, doi: https://doi.org/10.1016/j.rineng.2025.108056.

H. Yan, Q. Liu, W. Zhao, C. Pang, M. Dong, H. Zhang, J. Gao, H. Wang, B. Hu, L. Yang, and L. Wang “The coupled effect of temperature, humidity, and air movement on human thermal response in hot–humid and hot–arid climates in summer in China,” Build. Environ., vol. 177, p. 106898, 2020, doi: https://doi.org/10.1016/j.buildenv.2020.106898.

I. D. G. A. Putra, H. Nimiya, A. Sopaheluwakan, T. Kubota, H. S. Lee, R. P. Pradana, M. N. F. Alfata, R. B. Perdana, D. S. Permana, and N. F. Riama, “Development of climate zones for passive cooling techniques in the hot and humid climate of Indonesia,” Build. Environ., vol. 226, p. 109698, 2022, doi: https://doi.org/10.1016/j.buildenv.2022.109698.

X. Xiao and J. Liu, “A state-of-art review of dew point evaporative cooling technology and integrated applications,” Renew. Sustain. Energy Rev., vol. 191, p. 114142, 2024, doi: https://doi.org/10.1016/j.rser.2023.114142.

L. Lai, X. Wang, E. Hu, and K. Choon Ng, “A vision of dew point evaporative cooling: Opportunities and challenges,” Appl. Therm. Eng., vol. 244, p. 122683, 2024, doi: https://doi.org/10.1016/j.applthermaleng.2024.122683.

Y. Cheng, “Steady-State Analysis of Dew-Point Evaporative of Dew-Point,” Kyushu University, 2022. [Online]. Available: https://catalog.lib.kyushu-u.ac.jp/opac_download_md/4785172/4785172_fulltext.pdf

S. E. Razavi, T. Adibi, M. N. H. Abohned, S. F. Ahmed, and H. Alotaibi, “Performance optimization of Maisotsenko cycle heat exchangers: A three-dimensional parametric analysis,” Case Stud. Therm. Eng., vol. 67, p. 105829, 2025, doi: https://doi.org/10.1016/j.csite.2025.105829.

X. Fan, X. Lu, J. Wang, Z. Li, Q. Wang, Z. Dong, and R. Zhang, “Performance Evaluation of a Maisotsenko Cycle Cooling Tower with Uneven Length of Dry and Wet Channels in Hot and Humid Conditions,” 2021. doi: 10.3390/en14248249.

B. C. Wang, Z. Chen, G. L. You, J. N. Ding, G. G. Cheng, and T. D. Bui, “Improving indoor air quality and cooling efficiency: Indirect dew-point evaporative cooling in South China summers,” Energy Build., vol. 324, p. 114908, 2024, doi: https://doi.org/10.1016/j.enbuild.2024.114908.

X. Cui, M. R. Islam, and K. J. Chua, “An experimental and analytical study of a hybrid air-conditioning system in buildings residing in tropics,” Energy Build., vol. 201, pp. 216–226, 2019, doi:

https://doi.org/10.1016/j.enbuild.2019.06.028.

D. C. Gao, Y. J. Sun, Z. Ma, and H. Ren, “A review on integration and design of desiccant air-conditioning systems for overall performance improvements,” Renew. Sustain. Energy Rev., vol. 141, p. 110809, 2021, doi: https://doi.org/10.1016/j.rser.2021.110809.

J. Sonowal, B. K. Naik, D. V. N. Lakshmi, P. Muthukumar, and R. Anandalakshmi, “Evolution of solar driven desiccant systems for energy-efficient air conditioning: A review,” Sol. Compass, vol. 14, p. 100115, 2025, doi: https://doi.org/10.1016/j.solcom.2025.100115.

F. Abbas, M. Sultan, M. W. Shahzad, M. Farooq, H. M. U. Raza, M. H. Mahmood, U. Sajjad, and Z. Zhang, “Comprehensive Review on Evaporative Cooling and Desiccant Dehumidification Technologies for Agricultural Greenhouses,” 2025. doi: 10.3390/agriengineering7070222.

M. Sultan, I. I. El-Sharkawy, T. Miyazaki, B. B. Saha, and S. Koyama, “An overview of solid desiccant dehumidification and air conditioning systems,” Renew. Sustain. Energy Rev., vol. 46, pp. 16–29, 2015, doi:

https://doi.org/10.1016/j.rser.2015.02.038.

L. Lai, X. Wang, G. Kefayati, and E. Hu, “Evaporative Cooling Integrated with Solid Desiccant Systems: A Review,” 2021. doi: 10.3390/en14185982.

Kalpana and S. Subudhi, “Developments in liquid desiccant dehumidification system integrated with evaporative cooling technology,” Int. J. Energy Res., vol. 46, no. 1, pp. 61–88, Jan. 2022, doi: https://doi.org/10.1002/er.6713.

F. Aldawi, “Development and testing of a portable on-desk-size Maisotsenko indirect evaporative cooler for Central Saudi Arabia’s climate,” Int. Commun. Heat Mass Transf., vol. 169, p. 109820, 2025, doi:

https://doi.org/10.1016/j.icheatmasstransfer.2025.109820.

A. M. Qahtan, N. Al-Tamimi, I. Baklouti, and R. A. Almasri, “A comprehensive review of water-based passive cooling for building envelopes in arid climates: A biomimicry-inspired approach,” J. Build. Eng., vol. 114, p. 114296, 2025, doi: https://doi.org/10.1016/j.jobe.2025.114296.

E. D. Rogdakis, I. P. Koronaki, and D. N. Tertipis, “Experimental and computational evaluation of a Maisotsenko evaporative cooler at Greek climate,” Energy Build., vol. 70, pp. 497–506, 2014, doi:

https://doi.org/10.1016/j.enbuild.2013.10.013.

R. Boukhanouf, O. Amer, H. Ibrahim, and J. Calautit, “Design and performance analysis of a regenerative evaporative cooler for cooling of buildings in arid climates,” Build. Environ., vol. 142, pp. 1–10, 2018, doi:

https://doi.org/10.1016/j.buildenv.2018.06.004.

A. Muzaffar, S. N. Ahmed, K. Omar, M. Shehryar, and A. H. Muhammad, “Parametric investigation of a counter-flow heat and mass exchanger based on Maisotsenko cycle,” Therm. Sci., vol. 22, no. 6, pp. 3099–3106, 2018, doi: 10.2298/TSCI160808296A.

L. Chen, W. Deng, and Y. Chu, “Experimental study on desiccant evaporative combined chilled air/chilled water air conditioning systems,” Appl. Therm. Eng., vol. 199, p. 117534, 2021, doi:

https://doi.org/10.1016/j.applthermaleng.2021.1175

DOI: http://dx.doi.org/10.30811/jpl.v24i1.7392