Find the volumetric compression ratio
A diesel engine has a state before compression of 95 kpa, 290 k, a peak pressure of 6000 kpa, and a maximum temperature of 2400 K. Find the volumetric compression ratio and the thermal efficiency.
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Combustion products with the molar anaylisis of 10% CO2, 20% H2O, 70% N2 enter an engine's exhaust pipe at 1000F, 1atm and are cooled as they pass through the pipe, exiting at 100F, 1atm.
Determine the evaporator temperature at which a single-stage R22 plant will cease to produce any refrigerating effect in delhi where the condenser temperature is 42 degree C. the and the compressor has 5% clearance, index of compression is 1.15?
Liquid water enters a pump at 15°C, 100 kPa, and exits at a pressure of 5 MPa. If the isentropic efficiency of the pump is 75%, determine the enthalpy of the water at the pump exit, in KJ/kg.
Heat in the amount of 100 kJ is transferred directly from a hot reservoir at 1200 K to a cold reservoir at 600 K. Calculate the entropy change of the two reservoirs and determine if the increase of entropy principle is satisfied.
Consider a system operating a power cycle between thermal reservoirs at temperatures Th and Tc where Th>Tc. Using 1st and 2nd law of thermodynamics, derive the maximum thermal efficiency possible.
Water at 10 degrees C flows throug a smooth 60-mm-diameter pipe with an average velocity of 8m/s. Would a layer of rust of height 0.005mm on the pipe wall protrude through the viscous sub layers? Explain.
We want to achieve a concentration of 0.5%wt of carbon at a depth of 0.2 mm below the surface of the slab of a metal. The initial concentration of carbon in the metal is 0.1wt%.
Determine the number of recorders the manager should order each month to meet 90% of customer demand.
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