Compression-ignition engine operates on ideal diesel cycle

Assignment Help Mechanical Engineering

Reference no: EM13706616

A six-cylinder, four-stroke, 4.5-L compression-ignition engine operates on the ideal diesel cycle with a compression ratio of 17. The air is at 95 kPa and 55oC at the beginning of the compression process and the engine speed is 2000 rpm. The engine uses light diesel fuel with a heating value of 42,500 kJ/kg, an air-fuel ratio of 24, and a combustion efficiency of 98%. Using constant specific heats at 850 K, determine (a) the maximum temperature in the cycle and the cutoff ratio, (b) the net work output per cycle and the thermal efficiency, (c) the mean effective pressure, (d) the net power output, and (3) the specific fuel consumption, in g/kWh, defined as the ratio of the mass of the fuel consumed to the net work produced.

Reference no: EM13706616

Questions Cloud

A block of wood floats in water with half : A block of wood floats in water with half its volume below the surface. The specific weight of the wood in lbf/ft3 units is about

Assume that the average life expectancy of a beagle : Assume that the average life expectancy of a Beagle is 13.3 years, and that 60% of Beagles lives to 12 to 15 years, and that their age follows normal distribution. Calculate the standard deviation of the distribution.

Turbine is proportional to the circular area swept : The average wind speed on the north Texas plains around Amarillo is approximately 6 m/s. An efficient wind turbine can convert 35% of the kinetic energy of the air (wind) into electrical energy at optimum conditions. If a turbine has blades 25 m in l..

Challenges facing all-electric vehicle transportation : One of the challenges facing all-electric vehicle transportation is the electrical infrastructure need to support rapid recharging of electric cars. Residential power circuits commonly supply alternating current (A/C) with maximum residential voltage..

Compression-ignition engine operates on ideal diesel cycle : A six-cylinder, four-stroke, 4.5-L compression-ignition engine operates on the ideal diesel cycle with a compression ratio of 17. The air is at 95 kPa and 55oC at the beginning of the compression process and the engine speed is 2000 rpm. The engine u..

Highest possible average flow velocity in the duct : A central heating system has a 60 W fan used to circulate air through the building ducts. A previous flow analysis showed that the fan needs to raise the air pressure by 50 Pa to maintain proper flow through the ducts. The fan is located in a horizon..

Piston-cylinder device-determine the final energy of system : A vertically mounted piston-cylinder device contains 1.5 kg of water and is being heated over a coal burning stove. During the process, 75 kJ of heat is transferred to the water and heat losses from the side walls amount to 9 kJ.

Carbon diffuses in iron via an interstitial mechanism : Carbon diffuses in iron via an interstitial mechanism—for FCC iron from one octahedral site to an adjacent one. In Section 4.3 (Figure 4.3a), we note that two general sets of point coordinates for this site are 0 ½ 1 and ½ ½ ½ . Specify the family of..

Determine internal energy change as saturated liquid steam : Determine the internal energy change as saturated liquid steam at 600F goes to a two phase mixture of quality 0.40 at 600F. Saturated vapor water at 130?C undergoes an isometric process to 0.4 MPa. Determine the final fluid phase and the enthalpy cha..

User Account

All Pages