Get premium membership and access questions with answers, video lessons as well as revision papers.
Cogeneration is a high efficiency energy system that produces both electricity
(or mechanical energy) and valuable heat from single fuel source. Cogeneration is
some times known as combined heat and not only generates power but also provides
heat for industrial purposes. For example a hospital cogeneration plant would
produce some of power and all hot water needed for its laundry and hot water system
from the waste heat it generates.
Significance :
It reduces energy costs and green house gas emissions typically by upto two-third. In
addition to reduction in cost, cogeneration also increases resource utilization. It offers
major economic and environmental facilities because it turns otherwise wasted heat
into a useful energy source.
Cogeneration is a proven and reliable technology currently operating at over 100 sites
across Australia.
There is significant potential for cogeneration plants fired by other fuels, including
biomass (e.g., plant waste from sugar or cotton harvesting), or biogas (e.g., methane
produced by sewage works or piggeries).
gregorymasila answered the question on February 22, 2018 at 17:04
- Explain the constructional features of synchronous generator. What are the two types of generators? Derive emf equation of a synchronous machine(Solved)
Explain the constructional features of synchronous generator. What are the two types of generators? Derive emf equation of a synchronous machine.
Date posted: February 22, 2018. Answers (1)
- Explain the salient features of electrical propulsion.(Solved)
Explain the salient features of electrical propulsion.
Date posted: February 22, 2018. Answers (1)
- What are the advantages of electrically produced heat? Explain the various types of electric heating with their applications(Solved)
What are the advantages of electrically produced heat? Explain the various types of electric heating with their applications
Date posted: February 22, 2018. Answers (1)
- Write a short note on solar energy.(Solved)
Write a short note on solar energy.
Date posted: February 22, 2018. Answers (1)
- Explain the term “cogeneration” and give two possible ways of cogeneration(Solved)
Explain the term “cogeneration” and give two possible ways of cogeneration
Date posted: February 22, 2018. Answers (1)
- Explain the features of a nuclear power plant with a suitable diagram.(Solved)
Explain the features of a nuclear power plant with a suitable diagram.
Date posted: February 22, 2018. Answers (1)
- What is meant by grading of cables? Explain the two methods of grading(Solved)
What is meant by grading of cables? Explain the two methods of grading
Date posted: February 22, 2018. Answers (1)
- Explain the three main blocks of a solid state relay(Solved)
Explain the three main blocks of a solid state relay
Date posted: February 22, 2018. Answers (1)
- What are the two advantages of stepper motors? Give a few applications of them &
explain permanent magnet stepper motors(Solved)
What are the two advantages of stepper motors? Give a few applications of them &
explain permanent magnet stepper motors
Date posted: February 22, 2018. Answers (1)
- Explain the different methods of starting an induction motor.(Solved)
Explain the different methods of starting an induction motor.
Date posted: February 22, 2018. Answers (1)
- What are the two types of constructions that are employed in synchronous machines?
Explain the two machines and give with reasons which of them are simple...(Solved)
What are the two types of constructions that are employed in synchronous machines?
Explain the two machines and give with reasons which of them are simple to model
and analyze
Date posted: February 22, 2018. Answers (1)
- Explain the construction and working principle of a transformer(Solved)
Explain the construction and working principle of a transformer
Date posted: February 22, 2018. Answers (1)
- Write short note on Differential Relay(Solved)
Write short note on Differential Relay
Date posted: February 22, 2018. Answers (1)
- Write short note on Application of dielectric heating(Solved)
Write short note on Application of dielectric heating
Date posted: February 22, 2018. Answers (1)
- Describe the construction, principle of operation and advantages of SF6 circuit
breaker.(Solved)
Describe the construction, principle of operation and advantages of SF6 circuit
breaker.
Date posted: February 22, 2018. Answers (1)
- Write short note on following: (a) Condenser in Thermal power plant (b) Control of nuclear reactor(Solved)
Write short note on following:
(a) Condenser in Thermal power plant
(b) Control of nuclear reactor
Date posted: February 22, 2018. Answers (1)
- Explain the principle of operation of two phase servo motor. Draw its torque-slip characteristics.(Solved)
Explain the principle of operation of two phase servo motor. Draw its torque-slip characteristics.
Date posted: February 22, 2018. Answers (1)
- (a) Why does the induction motor not rotate at synchronous speed?
(b) Describe with the aid of diagram of connection, phasor diagram and torque-slip
characteristics, the...(Solved)
(a) Why does the induction motor not rotate at synchronous speed?
(b) Describe with the aid of diagram of connection, phasor diagram and torque-slip
characteristics, the working of capacitor-start single phase induction motor.
Date posted: February 22, 2018. Answers (1)
- Explain two important functions served by the damper winding in a synchronous motor. State the various applications of synchronous motor(Solved)
Explain two important functions served by the damper winding in a synchronous motor. State the various applications of synchronous motor.
Date posted: February 22, 2018. Answers (1)
- Write short notes on Switched reluctance motor(Solved)
Write short notes on Switched reluctance motor
Date posted: February 22, 2018. Answers (1)