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Residential integrated systems capable of generating electricity and providing space heating and water heating will reduce reliance on electricity supplied from central power plants. For a 2500-ft2 dwelling in your locale, evaluate two alternative technologies for combined power and heating: a solar energy-based system and a natural gas fuel cell system. For each alternative, specify equipment and evaluate costs, including the initial system cost, installation cost, and operating cost. Compare total cost with that for conventional means for powering and heating the dwelling. Write a report summarizing your analysis and recommending either or both of the options if they are preferable to conventional means.
thermodynamically analyze a hydrogen joule-thomson cycle ment to liquify hydrogen with isothermal compression occurring
a piston-cylinder device contains 12 kg of saturated vapor r-134a at 2.4 bar state 1. a 110 v electric source supplies
a jet of water leaves the nozzle at the end of a hose. the area and absolute pressure inside the hose are a1 and p1 and
for an undamped sdof spring mass system m5kg and k2000 nm. plot the displacement and acceleration of the system using
4 Kg of air expands in an insulated cylinder from 1131 kPa and 327C to 100 kPa in a reversible manner. Determine the work output by (a) assuming contestant specific heats and (b) using ideal-gas table A.7.1
A steam turbine has an inlet of 2 kg/s water at 1000 kPa, 350oC and velocity of 15 m/s. The exit is at 100 kPa, x = 1 and very low velocity. Find the specific work and the power produced.
an air force jet has an engine under development that is being studied for performance capabilities while the aircraft
A 2-Mg car has a velocity of v1 = 100 km/h when the driver sees an obstacle in front of the car. It takes 0.7s for him to react and lock the brakes, causing the car to skid. If the car stops when it has traveled a distance of 225m, determine the coef..
An AC induction machine has six poles and is designed for 60-Hz, 240-V (rms) operation. When the machine operates with 10 percent slip, it produces 60 N-m of torque.
a power plant operates on an ideal rankine steam cycle using water as the working fluid. the condenser operates at 10
a steam power plant operates on the reheat rankine cycle between 15 mpa and 10 kpa. system enters the high pressure
During a certain activity, a hinged knee prosthesis (material is CoCr - Endurance Strength = 330 MPa) is subjected to a cyclically varying bending moment with a mean value of 0 N mm.
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