Why always in production of engines the inlet valves are larger than exhaust valves?
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Why always in production of engines the inlet valves are larger than exhaust valves?
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- Solution Step by step. Thanks A motor car gas turbine unit has two centrifugal compressors in series giving an overall pressure ratio of 6/1. The air leaving the HP compressor passes through a heat exchanger before entering the combustion chamber. The expansion is in two turbine stages, the first stage driving the compressors and the second stage driving the car through gearing. The gases leaving the LP turbine pass through the heat exchanger before exhausting to the atmosphere. The HP turbine inlet temperature is 800 ?C and the air inlet temperature to the unit is 15 ?C. The isentropic efficiency of the compression is 0.8, and that of each turbine is 0.85; the mechanical efficiency of each shaft is 98 %. The heat exchanger thermal ratio may be assumed to be 0.65. Neglecting pressure losses and changes in kinetic energy, calculate: (i) the overall cycle efficiency; (ii) the power developed when the air mass flow is 0.7 kg/s; (iii) the specific fuel consumption when the calorific value…Draw a neat diagram and explain the working principle of a two-stage reciprocating air compressor?WHAT IS THE PURPOSE OFGAS COMPRESSOR WITH MULTI-STAGE COMPRESSION?
- b) How to Investigate the variation of air flow rate with compressor ratio (With Intercooler)?What is the pressure in the inlet? (Note: You cannot relate directly what is in the inlet section towards the exit/exhaust section, but: Inlet to Throat to Exit Section)name and explain the different control valve in steam generation
- Question 4 A single acting two stage reciprocating compressor takes in air at a rate of 0.2 m3/s at a pressure of 0.1 MPa @ 16˚C. The air is compressed to 0.7 MPa while running at 600 rpm. Compression is ideal and the process follows pV1.25 = C. Perfect intercooling takes place and neglecting clearance. What is the Intermediate pressure (IP) in kPa .............., the volume of the Low-Pressure cylinder in m3................... , the volume of the High-Pressure cylinder in m3.................. and the Total Cycle Power (TCP) in kW .....................Completely solve and box the final answers. Write legibly 2. (a) Draw the cycle with designated given values and (b) determine the mass flow rate of an ideal Brayton gas cycle of an air produces a workload of 220,000 watts, the temperature at the beginning of an isentropic compression is 280°C and constant heat addition of 827°C, the cut off ratio of 1 to 10.is it true that an l head engine has the intake and exhaust valves mounted in the cylinder head