Cylinder conditions at the start of compression in a spark ignition engine operating at wide open throttle on an air-standard Otto cycle are 60oC and 98kPa. The engine has a compression ratio of 9.5:1 and uses petroleum with an air-fuel ratio (AF) of 15.5. Combustion efficiency is 96%, and it can be assumed that there is no exhaust residual. If the petroleum has a heating value (QHV) of 43kJ/kg, Calculate the following:

Q: Question 9 Consider an ideal 4-stroke Diesel engine cycle. Air is compressed isentropically and…

A:

Q: What is the compression ratio of an Otto cycle type engine having 20% clearance . What is the air…

A: (1) Write the given data. C=20%=0.20

Q: the efficiency of the cycle will be

A:

Q: Required information A four-cylinder, four-stroke, spark-ignition engine operates on the ideal Otto…

A:

Q: An ideal Brayton cycle has a pressure ratio of 8. At the beginning of the compression process, air…

A:

Q: n SI engine operating on an four-stroke air-standard cycle using stoichiometric gasoline is to have…

A: Given;SI-engine (4-Stroke Air Standard cycle)Maximum cylinder pressure = 11,000 kPa Inlet pressure…

Q: A four cylinder 2.5liter SI automobile engine operates at WOT on a four-stroke air standard Otto…

A:

Q: The maximum temperature and pressure in a dual- combustion cycle are 2100 degree centigrade and 72…

A: Write the given data with suitable variables. T4=2100 °CP3=P4=72 barT1=20 °CP1=1 barT1=20 °Cr=18

Q: Calculate the efficiency of an Diesel cycle assuming Cold Air-Standard Analysis operating in air (k=…

A: Given is  for cold air standard diesel cycle  k = 1.4  r = 20 cutoff ratio( rc ) = 1.7     To…

Q: (a) Derive an expression for the air standard efficiency of a Brayton cycle in terms of pressure…

A: The derivation of the air standard efficiency is given below step by step.

IC engines

The term "engine" indicates a mechanical device/machine used to convert input energy to a specific mechanical output. The input energy may be in the form of chemical energy, thermal energy, or so on and mechanical output is in the form of mechanical energy (work done). Generally, the engines classify into two groups which are internal combustion type and external combustion type, and further, these two types can be classified into two types that are reciprocating and rotary engines.