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What is the work produced (kJ/kg) during the expansion process? Calculate the magnitude (kJ/kg) and direction of the heat transfer during the expansion process.
Air enters an adiabatic compressor at 20 °C and 100 kPa at a rate of 2 kg/s, and exits at 700 kPa. If the power input to the compressor is 460 kW, determine the isentropic efficiency of the com
An inventor claims to have devised a refrigeration cycle that at steady state requires a net power of .8 hp to remove 13,000 Btu/hr of energy. What is the maximum thermodynamic coefficient of perform
Draw a T-S diagram. be sure to label the states 1,2,2s,3,4,4s. Using the isentropic efficiency of the turbine, find the specific enthalpy at state 2.
Determine referigeration flow rate in kg per second. How does this cop compare with that of a carnot refrigerator operating between 40 c and -10 c.
With what type of parametric property, modifications and redefinitions made in one module, such as a Part mode, are reflected in other modules, such as Drawing and Manufacturing?
It is estimated that the refrigerator removes 3300 kJ/hr heat from the food, and rejects 4800 kJ/hr heat to the ambient, which is at 30 ºC. Determine the power input to the refrigerator in kW a
Kinetic and potential energy effects can be neglected. Sketch 1-2 and l-2s on the T-s diagram. (15') Find isentropic turbine efficiency. (10').
What is the heat rejection for the condenser in btu/h? If the condenser is water cooled with cooling water entering at 85deg F and leaving at 100 deg F, what flow rate of cooling water is required i
Determine the final volume (m3) of the water in the tank. Assume variable specific heats (use the property tables for water).
The beam AB is subjected to the uniformly distributed load shown and to two unknown forces P and Q. Draw the shear and bending-moment diagrams for the beam.
Determine the pipe diameter considering that concrete pipe is available in a range of diameters from 12" to 48" in 3" increments only."
Calculate the quality if saturated or the temperature if superheated of the steam as it loves the nozzle and the same values If the nozzle lost heat during the flow process at 100 kj/kg.
What is a simple way to increase the performance and eliminate the problem from part d? Are there any side effects of this change?
Despite the limits of this type of system (i.e. low work output). Is there any drawback (besides financial) to installing one in a vehicle?
Refrigerant 134a at a pressure of 0.8 MPA and a temperature of 50 C undergoes a process until the pressure is 0.1 MPA and the specific volume is 0.15 m^3/kg.
Assume that the dissolved oxygen concentration in media ( that is flowing over the cells) is 0.2 mmol/litter of media. What volume of fluid must be pumped into device per second?
Determine the maximum theoretical speed that may be achieved over a distance of 360ft by a car of weight W starting from rest assuming there is no slipping.
If the inside diameter is 40 in., the wall thickness is 3/8 in., and the internal pressure is 180 psi, what would be the readings for strain A, strain B, and strian C (Ea, Eb, Ec).
Determine the maximum span, Lmax, of a simply supported log beam that must support a uniformly distributed load w (including beam weight) without exceeding the allowable shear stress, Tallow.
The diameter of the ball is 2.001 cm and the inner diameter of the ring is 2.000 cm. At what temperature does the ball just fit through the ring?
The pressure at the nozzle exit at 0.5mpa. Calculate the heat transfer per unit mass during the expansion if the exit temperature is 50 degrees Celsius.
The drive sprocket has 19 teeth and the sprocket on the mixer has 84 teeth. Determine the speed of the drive sprocket, the chain speed, and the recommended lubrication method.
It has been determined that a point in a load-carrying member is subjected to the following stress condition. Draw complete maximum shear stress element.
What maximum load can the member take before buckling would be expected? b. Also compute the allowable load on the column for a design factor of 3.