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Consider a regenerative gas refrigeration cycle using helium as the working fluid. Helium enters the compressor at 100 kPa and -10°C and is compressed to 300 kPa. Helium is then cooled to 20°C by water. It then enters the regenerator where it is cooled further before it enters the turbine. Helium leaves the refrigerated space at -25°C and enters the regenerator. Assuming both the turbine and the compressor to be isentropic, determine
(a) the temperature of the helium at the turbine inlet,
(b) the coefficient of performance of the cycle, and
(c) the net power input required for a mass flow rate of 0.45 kg/s.
a bar of the cross section is shown in figure 3 and is made of steel that is assumed to be elastoplastic
Fluids A and B ave specific gravities .75 and 1.00 respectively. If the mercury is used as manometer liquid determine the pressure difference between A and B
A 120-ft diameter cylindrical tank with an empty weight of 1,000,000 Ib (including the weight of the cylindrical mat foundation) is to be built. The bottom of the mat will be at a depth of 2 ft below the ground surface. This tank is to be filled with..
Give a few examples of movable bridge designs, that build with a certain robotics toolkit (VEX) kit. Specify the dimensions of the bridge design and the materials needed to build it from a VEX kit.
A simple curve has a central angle of 42 degreess. A point Y is located 24m from the vertex and has a perpendicular distance of 3.00m from the back tangent.
If the time required to pay for parking is exponentially distributed with a mean of 15 seconds, find the average time in system.
Using the method of Lee et al., predict the temperature required in an isothermal plug flow incinerator to reduce the xylene level in a waste gas from 100 ppm to 10 ppm. Assume a residence time of 0.7 sec.
The two shafts in a speed-reducer unit are subjected to couples of magnitude M1 = 18 N · m and M2 = 7.5 N · m, respectively.
Working a problem where there are two one-story buildings of different heights next to each other. Earthquake imparts a base motion z(t) that is a cosine function. I'm given a shape function for a column of height L when deriving the EOM for each ..
At a point in a saturated normally consolidated clay layer the soil is subject to an in-situ vertical effective stress of 50kPa. The soil at the point has a moisture content of 44% and a compression index of 0.45.
Name two methods used in analysing structural members in civil engineering
Compare these two works or Art: Bodhisattva Padmapani - vs - Basawan and Chatar Muni, Akbar and the Elephant Hawai.
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