Proven benefits aside of the substantial fuel saving
- Improved Boost Air Pressure (BAP), especially at part load.
- Reduction in exhaust gas temperature at turbine inlet found to be lower, ranging from 80 °C to 120 °C, particularly during mid-load engine operation, thus cutting temperature peaks and thermal load of engine components.
- Peak Firing Pressure (PFP) within prescribed limit. Carbon monoxides (CO) 60.86 percent lower for IR passenger duty cycle and 58.87 percent for IR freight duty cycle.
- Particulate matter found to be 51.28 percent lower than baseline test with fixed geometry turbocharger.
Overall, ABB’s VTG technology-based turbocharger TPR 61AV10 meets the recent efficiency and performance requirements of Indian Railway’s DLW built 16 cylinder 251B engine with flying colors.
Indian Railways and ABB Turbocharging addressing progress jointly
ABB Turbocharging has had a strong association with Indian Railways for more than 35 years, having partnered with IR on various diesel locomotive upgradation programs since 1985. ABB has provided efficient solutions for almost all classes of locomotives in the range of 750 hp (VTR 250), 1350 hp (VTC 214), 2300 hp (VTC 304), 2600 hp (VTC 304), 3100 hp (VTC 304 and TPR 61) and 3300 / 3600 hp (TPR 61).
Since their introduction in 2001, TPR 61 turbochargers have been supplied by ABB Turbocharging from its manufacturing facility based at Maneja, Vadodara, for DLW built 3100 / 3300 / 3600 hp diesel engine based locomotives, which represent approximately half of the total diesel locomotive fleet of Indian Railways. Currently, more than 2400 TPR 61 turbochargers are in operation on DLW built 16 cylinder 3100 / 3300 hp diesel locomotives at Indian Railways.