A novel method for measuring and improving the dehumidification process inside a direct contact condensation unit

Year 2023, Volume: 7 Issue: 2, 109 - 121, 20.06.2023

Funda Kuru Dilek Kumlutaş

https://doi.org/10.26701/ems.1275329

Abstract

This paper reveals some of the experimental results retained during the comprehensive experimental research on the direct contact dehumidification process in a washer dryer machine. Pressurized spray water is injected into the moist air subject to dehumidification; the interplay between the saturated water droplet and process air leads to direct contact condensation occurring on the droplet surface. As a result, latent heat of condensation is released, and saturated water temperature increases. This study investigates the detailed interaction between these two streams and evaluates the effects of temperature distribution with the elapsed time over the moisture removal rates. Results show that numerical results are generally in line with the experimental work, which proves the applicability of the Computational Fluid Dynamic (CFD) solutions to this tedious system modelling process.

Keywords

Drying technologies, dehumidification, direct contact condensation, CFD

Supporting Institution

Republic of Turkey Ministry of Industry and Trade

Project Number

SAN-TEZ project grant no: 00998.STZ.2011-2

Thanks

This work was initially and partially supported by the SANTEZ program of Republic of Turkey Ministry of Industry and Trade (project grant no: 00998.STZ.2011-2), and partly supported by The Scientific and Technological Research Council of Turkey National Scholarship Program for PhD Students. These supports are gratefully acknowledged.

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