Using two parallel connected compressors to implement a novel control algorithm for improved indoor humidity at a low cost

Xiangguo Xu, Shen Chao, Shiming Deng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)


A novel control algorithm, named H-L control, for a direct expansion air conditioning system was previously developed, so that an improved indoor humidity control was achieved at a higher energy efficiency. However, a variable speed compressor was used, leading to a high cost of implementation for the control algorithm. This technical note reports on an experimental study, where two parallel connected single speed compressors were used to replace an expensive variable speed compressor to implement the novel control algorithm. Experimental results demonstrated that similar control performance may be achieved when using two single speed compressors, thus lowering the cost of implementation.
Original languageEnglish
Pages (from-to)349-354
Number of pages6
JournalBuilding Services Engineering Research and Technology
Issue number3
Publication statusPublished - 1 Aug 2013


  • air conditioning
  • energy efficiency
  • Humidity control
  • initial cost
  • parallel-connected compressors

ASJC Scopus subject areas

  • Building and Construction

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