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A Study on the Heat Transfer Characteristics of Semi- Flooded Type Evaporator Fin Tube for Adsorption Chiller

  • Sehyun Noh
  • , Van Cong Le
  • , Huynh Tan Loc
  • , Van Hau Duong
  • , Chan Woo Park*
  • *Corresponding author for this work
  • Jeonbuk National University

Research output: Contribution to conferenceConference paperpeer-review

Abstract

The purpose of this study is to compare the heat transfer performance of an adsorption chiller's evaporator with and without a hydrophilic coating applied to a fin-tube heat exchanger. The evaporator used in this study is a semi-flooded type, which utilizes the capillary phenomenon to induce efficient refrigerant evaporation without requiring a refrigerant circulation pump. The hydrophilic coating is prepared by using a coating solution of aluminum oxide and a water-soluble hardening agent, which is then applied using the dip-coating method. The researchers investigated the effect of the weight ratio of aluminum oxide powder as a coating variable and found that a coating solution with a weight ratio of 31 wt% resulted in excellent coating surfaces in almost all ranges. The study revealed that the heat transfer rate and overall heat transfer coefficient of the fin-tube coated with this coating method increased by up to 1.6 times compared to the uncoated case under the operating conditions of the adsorption-type evaporator.

Original languageEnglish
Title of host publicationProceedings of the 10th International Conference on Fluid Flow, Heat and Mass Transfer, FFHMT 2023
EditorsBoguslaw Kruczek, Wael H. Ahmed, Xianshe Feng
PublisherAvestia Publishing
ISBN (Print)9781990800245
DOIs
StatePublished - 2023
Event10th International Conference on Fluid Flow, Heat and Mass Transfer, FFHMT 2023 - Ottawa, Canada
Duration: 2023.06.72023.06.9

Publication series

NameInternational Conference on Fluid Flow, Heat and Mass Transfer
ISSN (Electronic)2369-3029

Conference

Conference10th International Conference on Fluid Flow, Heat and Mass Transfer, FFHMT 2023
Country/TerritoryCanada
CityOttawa
Period23.06.723.06.9

Quacquarelli Symonds(QS) Subject Topics

  • Engineering - Petroleum
  • Engineering - Chemical

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