Experimental and numerical investigations of thermal performance of Al2O3/water nanofluid for a combi boiler with double heat exchangers

ÖZDEMİR M. B., Ergun M. E.

INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW, vol.29, no.4, pp.1300-1321, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 4
  • Publication Date: 2019
  • Doi Number: 10.1108/hff-05-2018-0189
  • Journal Name: INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1300-1321
  • Keywords: Nanofluid, Modelling, Plate heat exchanger, WATER-BASED NANOFLUID, NATURAL-CONVECTION, PRESSURE-DROP, TRANSFER ENHANCEMENT, POROUS ENCLOSURE, ALUMINA-WATER, UNIFORM HEAT, THIN FIN, PLATE, FLOW
  • Gazi University Affiliated: Yes

Abstract

Purpose This study aims to focus on usage of Al2O3/water nanofluid as working fluid in a combi boiler. The plate heat exchanger located at the bottom of the combi boiler has been used for heating the domestic water in the present study. Al2O3/water nanofluid has also been used in obtaining of the heat energy provided from combustion. Therefore, thermal performance of Al2O3/water has been determined by comparing water and nanofluid-water mixture. The present study also investigates heat transfer rates as numerical and experimental for varying cold side outlet temperatures, comparatively.