Thermodynamic analysis of an HDH water desalination system with a solar-driven absorption refrigeration cycle

Authors

1 babol noshirvani university of technology

2 Prof., Mech. Eng., Babol Noshirvani University of Technology, Babol, Iran

3 Ph.D. Student, Mechanical Engineering, Energy conversion, Iran University of Science and Technology

Abstract

This research investigates an HDH humidifier-dehumidifier cycle that incorporates a direct contact dehumidifier and a single-effect solar absorption refrigeration system (ARS). Due to its utilization of biomass, solar energy, and geothermal energy for chilling purposes, absorption refrigeration systems are being examined for their environmentally friendly design. The system's performance was evaluated across several operational scenarios by employing a mathematical model. In order to incorporate the impact of humidification and dehumidification units into the theoretical modeling, the correlation was employed to examine the heat and mass transport in the system under consideration. The system's performance was evaluated using performance parameters such as recovery ratio (RR), coefficient of performance (COP), and output gain ratio (GOR). An investigation was conducted on the state of the hybrid HDH system in conjunction with an absorption refrigeration system, considering various cooling situations. Studies have demonstrated that modifying the ratio of saline water to fresh water or saline water to dry air in an HDH system allows for the integration of an absorption refrigeration system of the water-ammonia type, without requiring extra cooling load. This adjustment successfully achieved a favorable recovery ratio. In order to prevent the requirement for extra cooling, the system can be initiated within the range of values that are less than 2.5 and greater than 4.2.

Keywords

Main Subjects

References

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Journal of Solid and Fluid Mechanics
Volume 14, Issue 3
September and October 2024
Pages 11-25

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