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Establishment of leakage rates of mobile air conditioners in heavy duty vehicles. 1. Trucks. Final report.

Author(s) : Eur. Comm., Öko-Rech., SCHWARZ W.

Type of monograph: Report

Summary

On behalf of the EU Commission, this study establishes empirically the annual leakage rate of mobile air conditioners (MACs) in trucks for the use-phase of the vehicles. The approach consists of measurements of the bigger part of use-phase emissions, called "regular leakage". Regular leakage takes place gradually from intact MACs. This is quite different to "irregular leakage", attributable to system failures caused by internal or external reasons, often by accidents. The measurements were made at 12 vehicle pools. For every MAC it was determined how much of the initial (norm) refrigerant charge was still in the system. The assessment of the refrigerant deficiency in each MAC followed a dedicated measurement protocol which was in principle identical to that which was developed and used for establishing the leakage rate of MACs in passenger cars, in 2002/2003. Extract from the table of contents: focus on regular leakage rate; selection criteria for the measuring sample; issues of measurement accuracy (how exact is the extracted refrigerant measured? how much refrigerant can be extracted from a MAC? what follows from initial MAC filling over the norm charge? qualification tests with four new trucks); composition of the measured trucks (number of trucks; refrigerant charges of the MACs); the results: annual regular leakage rate of truck MACs in EU-25. In the annex: measurement protocol; participating truck operators. This final report can be downloaded from the Web site: ec.europa.eu/environment/climat/fluor/studies_en.htm. See also this Bulletin, references 2008-1423 and 1424.

Details

  • Original title: Establishment of leakage rates of mobile air conditioners in heavy duty vehicles. 1. Trucks. Final report.
  • Record ID : 2008-1425
  • Languages: English
  • Subject: Figures, economy, Regulation, Environment, HFCs alternatives
  • Publication: European Commission, DG Environnement - Belgium/Belgium
  • Publication date: 2007/01/27
  • Source: Source: 49 p. (21 x 29.7); fig.; phot.; tabl.; ref.; 2 append.

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