An engine of diameter 250 mm and 375 mm stroke works on otto cycle...........
Theory
In gas turbine plants, Brayton cycle is more suitable than otto cycle...
In gas turbine plant – it works on brayton cycle where the heat added & heat rejected at constant pressure. It consists of compressor, combustion chamber & a turbine. The efficiency of Brayton cycle rotor cycle is same for but efficiency is of gas it temperature & pressure is increasing. High temperature & pressure require for ignition & fuel consumption for bray ton cycle. It is not possible in Oto cycle because the heat added & rejected at constant volume so bray ton cycle is most suitable than Otto cycle for gas turbine plant.
Distinguish between central A/C and unitary A/C systems with respect to following parameters....
An engine working on otto cycle has,....
Define displacement of compressor for two stage compressor...
Displacement is the product of piston displacement and working stroke per minute is bared on low pressure only and the amount air passing through the other cylinder for two stage compressor. When free air wave from low pressure cylinder to high pressure cylinder through intercooler there is reduction of volume of air because of perfect cooling so free air delivered is less than displacement of compressor. ( Pl check)
Which is more effective way to increse the C.O.P. of refrigerator,......
Explain the construction and working of Ram jet with the help of neat labelled schematic diagram. State its limitations (any two).
A single stage single acting air compressor delivers 0.6 kg of air per minute at 6.1 bar...
A vapour compression machine is used to maintain a temperature of –23°C in a refrigerated space. The ambient temperature is 37°C.....
Draw theoretical and actual P-V diagrams for S.I. engines and explain briefly...
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