Exam Question
Explain the following modern methods of turbo charging:
(a) Pulse converter system. (4)
(b) Sequential turbo charging (4)
(c) 2 stage turbo charging (4)
(d) Variable geometry turbo charger. (4)
Class 1 (Chief Engineer)
Engineering Management
📅 Oct 2023
Reference Answer
### (a) Pulse Converter System
**Concept:**
The Pulse Converter System is an enhancement of the conventional pulse turbocharging system, predominantly used in medium-speed diesel engines. Its primary objective is to improve the overall efficiency of the turbocharging process by partially converting the high-pressure exhaust gas pulse energy into kinetic energy before it reaches the turbine. This method retains the rapid transient response characteristic of pulse systems while mitigating the efficiency losses associated with long intervals between exhaust pulses and partial gas loss in multi-inlet turbines.
**Construction and Operation:**
**Concept:**
The Pulse Converter System is an enhancement of the conventional pulse turbocharging system, predominantly used in medium-speed diesel engines. Its primary objective is to improve the overall efficiency of the turbocharging process by partially converting the high-pressure exhaust gas pulse energy into kinetic energy before it reaches the turbine. This method retains the rapid transient response characteristic of pulse systems while mitigating the efficiency losses associated with long intervals between exhaust pulses and partial gas loss in multi-inlet turbines.
**Construction and Operation:**
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