A laboratory test method to realistically simulate air side fouling of condensers (RP-1705)

Mehdi Mehrabi, David Yuill

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


This paper describes the development of a method that can be used to simulate in a laboratory the effects of air side fouling of condensers from split system air conditioners. The method includes a synthetic fouling agent that realistically mimics field fouling. The fouling agent was developed by considering the fouling materials and effects on heat transfer and air side pressure drop that were measured on a set of condenser coils that had been fouled in situ. The proposed fouling agent matches these effects by combining a fiber component with a particulate component. The particulate component is made from quartz dust that has a particle size distribution based on averages of size distributions in samples collected from condensers in Omaha, NE and Las Vegas, NV. The fouling agent is applied to coils with several different designs, including a range of fin pitches, and plate fin, spine fin, and microchannel configurations. The rates of fouling deposition, as well as the effects of fouling on coil performance, are shown and compared for these coils.

Original languageEnglish (US)
Pages (from-to)805-815
Number of pages11
JournalScience and Technology for the Built Environment
Issue number6
StatePublished - Jul 2 2020

ASJC Scopus subject areas

  • Environmental Engineering
  • Building and Construction
  • Fluid Flow and Transfer Processes


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