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A Rigid, 85-L steam cooker is arranged with a pressure relief valve set to release vapor and maintain the pressure once the pressure inside the cooker reaches 200 kPa. Initially, this cooker is filled with water at 200 kPa with a quality of 8 percent. Heat is now added until the quality inside the cooker is 52 percent. Determine the minimum entropy change of the thermal energy reservoir supplying this heat.
If we have |N|(en) + F - W = 0 Where The unit vector of N is give, F components unknown and W is only -3400 j. What is the first step to solve for an unknown.
refrigerant 134a at 700 kpa and 40oc is expanded adiabatically in a closed system to 60 kpa. determine the work
air at 5 bar and 177oc state 1 is expanded through a turbine to 1 bar and 27oc state2. the mass flow rate of air
a closed-end cylindrical pressure vessel constructed of carbon steel has a wall thickness of 2 mm a diameter of 150 mm
A piston/cylinder device initially contains 0.1 cu. m. of air at 27 C. A very light piston that moves without friction is connected to a spring that is initially at its equilibrium position (no force). The spring constant is 100 kN/m and the area of ..
A piston cylinder device contains about 0.25kg of saturated water liquid @ 125C. Now water is heated at constant pressure until it becomes saturated vapor. How much is the work done during this process? How much is the heat transfer into the system?
the 12-mg truck drives onto the 350-mg barge from the dock at 20 kmh and brakes to a stop on the deck. the barge is
a bicyclist leaves from her home at 9 a.m. and rides to a beach 40 mi away. because of a breeze off the ocean the
A high-speed elevator is being designed that must be able to travel at a maximum speed of 11.5 fts. You are asked to recommend the lift motor to use. The completely furnished carriage will have a mass of 3500 pounds. The design occupancy limit will b..
the following fluids in a 2-in schedule 40 pipe. if the temperature is in f do it in the english system. if the
a vapor-compression refrigeration system uses refrigerant 134a as the working fluid. the refrigerant enters the
Air enters a three-stage gas turbine at 100 kPa and 17 degree Celsius. This system uses a regenerator as well as reheating and inters cooling. The pressure ratio across each compressor is 14.16 (this is 14.16, NOT 14 and 16!); 300 kJ/kg of heat are a..
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