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Air enters a compressor operating at steady state at 1 atm. with a specific enthalpy of 290 kJ/kg and exits at a higher pressure with a specific enthalpy of 1023 kJ/kg. The mass flow rate is 0.1 kg/s. If the compressor power input is 77 kW. Neglect flow kinetic and potential energy effects. What is the compressor rate of internal irreversibility (kJ/kg-K) and its isentropic efficiency? Be careful and look up the meaning of isentropic efficiency (emphasis on "isentropic").
you are designing an ex vivo artificial organ. the cells in the organ cannot tolerate shear stress in excess of 0.5 gcm
a disabled automobile is pulled by means of two ropes. knowing that the tension in rope ab is 750 ib determine by
a piston-cylinder assembly is fitted with stops. the assembly contains 0.1 kg of water initially at 1 mpa and 500degc.
Three kg of gas in a piston–cylinder assembly undergo a process during which the relationship between pressure and specific volume is py 0.5 5 constant. The process begins with p 1 5 250 kPa and V 1 5 1.5 m 3 and ends with p 2 5 100 kPa. Determine th..
a paint mixture containing 25.0 wt of a pigment and the balance water sells for 18.00kg and a mixture containing 12.0
a 100-mm long and 20-mm diameter rod of 403-stainless steel is pulled to fracture with reported results as follows
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the axial velocity profile for laminar flow in a pipe is given by ur umax 1-rrrr where r is radial position r is the
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a high school project involves building a model ultralight airplane. some of the stu- dents propose making an airfoil
two workstations are being conciered by your company. machine 1 costs 12000 new and 1300 to operate and maintain each
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