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The valve connecting the tanks is opened and the gas pressure is allowed to equalize. The two tanks are then cooled to T = 20 oC. What is the final equilibrium pressure of the air in the two tanks?
Heat transfer to the cylinder causes an isothermal expansion of the piston until the volume doubles. How much work is done by the piston-cylinder?
The spacing between the interference fringes will increase, but the width of the overall diffraction envelope will decrease. -Both the spacing between the interference fringes and the width of the o
What is the efficiency of this heat engine? What is the efficiency of a Carnot cycle running between the lowest and highest temperature of the cycle above?
Engineering materials, I need you to write a report about Heat Treatment of Steel. I will attach the report format which you need to stick with it, and the professor's manual experiments will help to
Engineeering materials, I need you to write a report about Heat Treatment of Steel. I will attach the report format which you need to stick with it, and the professor's manual experiments will help to
Calculate the following fluid and flow parameters using the EES unit system: 1. Static density, velocity, and mass flow rate at the inlet plane; 2. Static temperature & density, Mach number, vel
Determine the heat transfer per kg necessary to raise the temperature of a closed rigid tank of saturated water vapor originally at 0.140 MPa to a temperature of 800 degrees Celsius.
Calculate COP value of the reversible refrigeration system and determine the new size of the compressor, in W, that will be suitable for the reversible refrigeration system of this water cooler.
Determine the nozzle diameter for the second case, assuming that all friction losses occur outside the nozzle and neglect the small difference in elevation between the nozzle inlet and exit.
An hydraulic turbine operates under an available head of 85 m at a flow rate of 0.25 m^3/s. The electrical power output is 162.5 kW. Calculate the overall efficiency of the turbine generator.
Determine (a) the amount of energy dissipated in friction by the pulley, (b) the tension in each portion of the cord during the motion.
Determine the quality (%) of a saturated liquid vapor mixture given the data below. mvapor = 9 kg, mliquid = 11 kg Determine the mass of the liquid in a saturated liquid vapor mixture.
The water level in the second tank is 160 ft above the level of the first tank and the discharge end of the pipe is submerged. If 40 hp is delivered to the pump unit, determine the efficiency of th
The drain from the closed heater is trapped to the open heater. The extracted steam exiting the closed heater is saturated liquid Also sketch the cycle on a T-s state diagram.
Consider a cylindrical nickel wire 1.9 mm in diameter and 3.2 × 104 mm long. Calculate its elongation when a load of 280 N is applied.
Given that the elastic modulus and Poisson's ratio of the metal are 64.0 GPa and 0.32, respectively, determine the following: (a) The amount by which this specimen will elongate in the direction of
Calculate the work done during the process. Determine the mass of steam that has entered. Calculate the amount of heat transfer.
The flash chamber operates adiabatically and kinetic and potential energy effects can be ignored. Determine the mass flow rates of the exiting streams, each in kg/s.
Determine the reading on the pressure gage in psig when all the liquid has just turned to vapor (all saturated vapor). Show this process on a sketch of a T-v diagram.
Determine the exit Mach number (Me), exit velocity magnitude (Ve), exit static pressure (pe), and the mass flow rate (using the SI system). The inlet stagnation conditions are: 1. Tt1=500 K and pt1=
Determine the change in internal energy (kJ) and enthalpy (kJ) of water. (a) Using compressed liquid tables (b) Using approximation for compressed liquid state Answers: (a) U = 1.76 kJ , H = 6.78
Enough heat is added until the tank contains only saturated vapor. Determine the final pressure (bar) and the amount of heat added to the fluid, in kJ.