ShareDevelopment and experimental testing of a hybrid Stirling engine-adsorption chiller auxiliary power unit for heavy trucks.
Author(s) : FLANNERY B., LATTIN R., FINCKH O., et al.
Type of article: Article
Summary
This paper identifies the key technical requirements for a heavy truck auxiliary power unit (APU) and explores a potential alternative technology for use in a next-generation APU which could eliminate key problems related to emissions, noise and maintenance experienced today by conventional diesel engine-vapour compression APUs. The potential performance of a novel hybrid Stirling engine-adsorption chiller concept is investigated and benchmarked against the incumbent technology using a reduced-order model based on experimental data.
Experimental results from a Stirling-adsorption system (SAS) prototype test rig are also presented which highlight system integration dynamics and overall performance. The adsorption chiller achieved an average COP of 0.42 ± 0.06 and 2.3 ± 0.1 kWt of cooling capacity at the baseline test condition. The prototype SAS test rig demonstrates that there appear to be no major technology barriers remaining that would prevent adoption of the SAS concept in a next-generation APU. Such a system could offer a reduction of exhaust emissions, greenhouse gases (GHG), ozone-depleting substances, noise, low maintenance and the potential for fuel flexibility and higher reliability. Preliminary modelling results indicate that the proposed system could offer superior overall electrical and cooling efficiencies compared to incumbent APUs and demonstrate a payback period of 4.6 years.
Details
- Original title: Development and experimental testing of a hybrid Stirling engine-adsorption chiller auxiliary power unit for heavy trucks.
- Record ID : 30020781
- Languages: English
- Source: Applied Thermal Engineering - vol. 112
- Publication date: 2017/02/05
- DOI: http://dx.doi.org/10.1016/j.applthermaleng.2016.10.062
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