Parametric investigation of a counter-flow heat and mass exchanger based on Maisotsenko cycle

Muzaffar Ali, Nadeem Ahmed Sheikh, Omar Khalid, Shehryar Manzoor, Hafiz Muhammad Ali*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

The performance of a dew-point cooler is analyzed in terms of various parameters including dew point and wet bulb effectiveness. An experimental set-up of a counter-flow heat and mass exchanger based on Maisotsenko cycle evaporation technique is established. The set-up consists of 8 dry channels made of aluminum sheets and 7 wet channels made of kraft paper. Experimental analysis is performed under wide range of operating parameters including air absolute humidity: 12.7 g/kg to 18 g/kg, air temperature 20 to 55 °C, and inlet velocities 0.88 to 1.50 m/s. The results indicate that appreciably higher value of dew-point and the wet-bulb effectiveness can be achieved ranging up to a maximum of 93% and to 130%, respectively, at various inlet air conditions. Apart from the ambient air conditions, influence of amount of air diversion to wet side of channel is also studied. It is observed that this design feature of heat and mass exchanger can lead to a substantial increase of dew-point and wet-bulb effectiveness. By varying the inlet to wet side air ratio, a suitable limit of the quantity of inlet air diversion to working side is also suggested.

Original languageEnglish
Pages (from-to)3099-3106
Number of pages8
JournalThermal Science
Volume22
Issue number6
DOIs
StatePublished - 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2018 Society of Thermal Engineers of Serbia.

Keywords

  • Air conditioning
  • Counter-flow
  • Dew point
  • Maisotsenko cycle
  • Sensible and latent heat

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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