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Hybrid stirling engine-adsorption chiller for truck auxiliary power unit applications

  • University of Galway
  • Ingersoll Rand GmbH

Research output: Chapter in Book or Conference Publication/ProceedingConference Publicationpeer-review

1 Citation (Scopus)

Abstract

This paper presents preliminary experimental test results for a novel truck auxiliary power unit (APU) design consisting of a 1 kWe free-piston Stirling engine and 2 kWt zeolite-water adsorption chiller that is powered via waste heat from the engine's cooling jacket. A prototype system was built and tested to study the interaction dynamics between the Stirling engine and adsorption chiller and to determine the performance of the chiller in extreme ambient temperature conditions. The results show that pulsed thermal loading from the chiller on the engine results in engine power spikes to 110-115% of rated power. An average COP of 0.32±0.06 was achieved for the adsorption chiller and its capacity varied in the range of ∼1-3 kWt as the recooler temperature was varied from 25-45°C. The proposed system has many benefits over existing technologies such as low noise, high reliability and clean emissions without any need for additional exhaust treatment.

Original languageEnglish
Title of host publication12th IIR Gustav Lorentzen Natural Working Fluids Conference, GL 2016
PublisherInternational Institute of Refrigeration
Pages138-145
Number of pages8
ISBN (Electronic)9782362150180
DOIs
Publication statusPublished - 2016
Event12th IIR Gustav Lorentzen Natural Working Fluids Conference, GL 2016 - Edinburgh, United Kingdom
Duration: 21 Aug 201624 Aug 2016

Publication series

NameRefrigeration Science and Technology
ISSN (Print)0151-1637

Conference

Conference12th IIR Gustav Lorentzen Natural Working Fluids Conference, GL 2016
Country/TerritoryUnited Kingdom
CityEdinburgh
Period21/08/1624/08/16

Keywords

  • Adsorption cooling
  • Stirling engine
  • Truck auxiliary power unit
  • Zeolite-water

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