Performance assessment of integrated liquid desiccant dehumidification with vapor-compression system for energy-efficient air conditioning applications

Mrinal Bhowmik*, Siddharth Rath, Richard Jayson Varela, P. Muthukumar, R. Anandalakshmi, Kiyoshi Saito

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The present study aims to integrate desiccant dehumidification systems and vapor-compression air conditioning (VC) systems for energy-efficient air conditioning applications. A numerical model is developed for a dehumidifier/regenerator module based on the governing mass, energy, and species balance equations. Subsequently, the desiccant system is integrated with the VC system to investigate the overall system performance. The novelty of the present work is in its exploration of the integration of desiccant systems. The share of dehumidifier load in overall system is studied, and performance of the integrated system is compared with that of a standalone VC system. Trade-off analysis is also performed in consideration of all performance parameters. The comparative results reveal that a significant amount of the total latent heat load is controlled by the dehumidifier. Specifically, it is observed that the integrated system can improve the COP by 40.8–74.8% relative to the standalone VC system under different operating conditions.

Original languageEnglish
Article number119118
JournalApplied Thermal Engineering
Volume216
DOIs
Publication statusPublished - 2022 Nov 5

Keywords

  • ASPEN model
  • Absorption rate
  • Air dehumidification
  • Coefficient of performance
  • Desorption rate
  • Liquid desiccant
  • Vapor-compression system

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering

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