Comparison of fin-and-tube interlaced and face split evaporators with flow maldistribution and compensation

Martin Ryhl Kærn, Brian Elmegaard, Lars Finn Sloth Larsen

Research output: Contribution to journalJournal articleResearchpeer-review

306 Downloads (Pure)

Abstract

Flow maldistribution in fin-and tube evaporators for residential air-conditioning is investigated by numerical simulation. In particular, the interlaced and the face split evaporator are compared in flow maldistribution conditions. The considered sources of maldistribution are the liquid/vapor distribution and the airflow distribution. Furthermore, compensation of flow maldistribution by control of individual channel superheat is studied for each evaporator type. It is shown that the interlaced evaporator is better at flow maldistribution than the face split evaporator. However, if individual channel superheats are controlled, the face split evaporator achieves the best performance, i.e. an increase of 7% in overall UA-value and 1.6–2.4% in COP compared to the interlaced evaporator without compensation.
Original languageEnglish
JournalInternational Journal of Refrigeration
Volume36
Issue number1
Pages (from-to)203-214
ISSN0140-7007
DOIs
Publication statusPublished - 2013

Bibliographical note

Post-print: Creative Commons Attribution-Non-Commercial-No Derivatives

Keywords

  • Distribution de l'écoulement
  • Compensation
  • Conditionnement d'air
  • Tube aileté
  • Modélisation
  • Simulation

Fingerprint Dive into the research topics of 'Comparison of fin-and-tube interlaced and face split evaporators with flow maldistribution and compensation'. Together they form a unique fingerprint.

Cite this