As a part of the upgradation program of its fleet of 1940 kW diesel electric locomotives, Indian Railways undertook evaluation, matching and optimization of different turbochargers. The objective was to increase engine output, improve fuel efficiency and limit thermal loading. Trials with different makes of turbochargers using different combinations of diffuser, nozzle rings and compressors were carried out for identifying the optimum configuration for an uprated engine rating of 2310 kW. Test bed evaluations have been carried out on Research Design & Standards Organization (RDSO) test beds for four different designs of turbochargers with different configurations. Two types of surge tests were carried out at each operating point i.e. constant brake mean effective pressure (BMEP) and constant power. In the first case, BMEP was kept constant and engine speed varied and in the second case, power was kept constant and engine speed was varied. The tests consisted of recording the parameters at various combinations of engine speed and power. With different combinations, the highest operating point for a test was governed by peak firing pressures. Some of the parameters, which were monitored, were the compressor air inlet temperature, representative peak firing pressures, turbine inlet temperature, average cylinder head temperature, brake specific fuel consumption (BSFC) and air manifold temperature. This paper discusses the methods adopted in carrying out these evaluations and optimizations and the results obtained thereof along with the decision criteria for making final selections.
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ASME 2005 Internal Combustion Engine Division Spring Technical Conference
April 5–7, 2005
Chicago, Illinois, USA
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
0-7918-4184-7
PROCEEDINGS PAPER
Matching and Optimisation of Turbochargers for Upgradation of High Horse Power Diesel Electric Locomotives for Indian Railways
Anirudh Gautam,
Anirudh Gautam
Railway Design and Standards Organisation, Lucknow, India
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Avinash Kumar Agarwal
Avinash Kumar Agarwal
Indian Institute of Technology, Kanpur, India
Search for other works by this author on:
Anirudh Gautam
Railway Design and Standards Organisation, Lucknow, India
Avinash Kumar Agarwal
Indian Institute of Technology, Kanpur, India
Paper No:
ICES2005-1103, pp. 83-88; 6 pages
Published Online:
November 11, 2008
Citation
Gautam, A, & Agarwal, AK. "Matching and Optimisation of Turbochargers for Upgradation of High Horse Power Diesel Electric Locomotives for Indian Railways." Proceedings of the ASME 2005 Internal Combustion Engine Division Spring Technical Conference. ASME 2005 Internal Combustion Engine Division Spring Technical Conference. Chicago, Illinois, USA. April 5–7, 2005. pp. 83-88. ASME. https://doi.org/10.1115/ICES2005-1103
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