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The gases in the cylinder of an internal combustion engine have a specific internal energy of 800 kJ/kg and a specific volume of 0.06 m3/kg at the beginning of expansion. The expansion of the gases may be assumed to take place according to pn1.5=constant, from 55 bar to 1.4 bar. The specific internal energy after expansion is 230 kJ/kg. Calculate the heat rejected to the cylinder cooling water per kilogram of gases during the expansion stroke.
a heat pump operates on the ideal vapor compression refrigeration cycle with r-134a as the working fluid. the load on
it is proposed that solar energy be used to warm a large collector plate. this energy would in turn be transferred as
a factory has a large liquid propane storage tank. the propane is to be used as vapor. evaporation of the liquid
piston cylinder device contains 0.06 m3 of saturated water vapor at 350 KPa pressure. Determine the temperature and the mass of the vapor in.
a high-strength steel has a yield strength of 1510 mpa and a k ic of 93 mpa-m12. calculate the smallest size of a
Assume that you are one of the candidates who have impressed the recruiting team of the company. The recruiting team of XYZ Company is happy that they are willing to offer you the required job. Discuss at least five factors which you are going to con..
find densities, enthalpies and efficiency for gas turbine power cycle with the following conditions.
a more desirable color is 39 pigment a 27 pigment b 25.2 pigment c and 8.8 pigment d. using gauss-seidel method
a copper wire of diameter 0.80 mm fails at an engineering stress 248.2 mpa. its ductility is measured as 75 reduction
Now suppose the mean time to failure (mf) on the expose machine is 60 hours and the repair time is exponentially distributed with a mean of 2 hours (mr). What are the effective mean and CV of the process time for a job of 60 panels?
steam having a specific enthalpy of 160 kjkg and pressure of 1 kpa enters as adiabatic pump. upon leaving the pump the
If after 49.5 h the concentration of carbon is 0.35 wt% at a position 4.0 mm below the surface, determine the temperature at which the treatment was carried out.
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