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Water is the working fluid in a regenerative Rankine cycle. The pressure and temperature at the turbine inlet are 8MPa and 550 °C, respectively, and the condenser pressure is 7.5KPa. The mass flow rate of steam entering the turbine is 176kg/s. Included in the cycle is one closed feed water heater using extracted steam at 1800KPa and one open feed water heater operating at 275KPa. Saturated liquid condensate is throttled from the closed feed water heater at 1800KPa to the open feed water heater. The feed water leaves the closed heater at 8MPa, 200 °C, and saturated liquid leaves the open heater at 275KPa. The cooling water experiences a temperature increase from 15 °C to 27 °C with negligible pressure drop as it passes through the condenser. Draw the T-s diagram (hint: it would help to begin with a schematic of the cycle) and
Determine:a. The net power developed in KWb. The thermal efficiency of the cyclec. The mass flow rate of cooling water in kg/s
find Torque at O2, and forces at O2, A and B, also calculate shaking force and shaking torque. MEE40003- Machine Dynamics
Determine (a) the exit temperature, (b) the exit relative humidity of the air, (c) the exit velocity.
Why do thermoplastics tend to become brittle in very cold weather?
Effective Matching of Surface Roughness, Concerning the effective matching of surface roughness using a lathe, I have been asked to quantify Ra = C1* s^C2 v^C3 Re^C4
Estimate the torque required at the base of a flag pole to hold it in place in a 30mph wind. Assume the flag pole is a vertical cylinder with D=10cm and L=10m, and assume the wind drag force is uniform along the pole.
Determine the minimum no of teeth required on pinion in order to avoid interference which is to gear with 1 a wheel to give a gear ratio of 3 to 1
Determine the molecular weight of a poly(ethylene-propylene) with a degree of polymerization of 25,000 given that 20% of the mers (by number) are ethylene and 80% are propylenel.
Given an aerodynamic body, you have learned in Aerodynamics and Flight Mechanics how to apply the numerical Source Panel Method to this body to determine the velocity and pressure profiles along the surface of the body.
Steam @ 10 MPa, 600 degrees celcius enters the first-stage turbine of an ideal Rankine cycle with reheat. The steam leaving the reheat section of the steam generator is @ 500 degrees celcius
The Cost of Recharging a Battery, A 12-V automotive storage battery is charged with a constant current of 2 amp for 24 hr.
this would provide you with a set of Reynolds numbers. Next, using the integral method, determine the velocity profiles within the boundary layer to be followed by determination of the heat transfer coefficient values for your selected Reynolds numbe..
Verify that heating the wire may be treated as a lumped-capacity process, find the steady-state temperature of the wire and find how long it takes for the temperature of the wire to reach 100°C.
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