A heat engine running backward is called a refrigerator if its purpose is to extract heat from a cold reservoir. The same engine running backward is called a heat pump if its purpose is to exhaust warm air into the hot reservoir. Heat pumps are widely used for home heating. You can think of a heat pump as a refrigerator that is cooling the already cold outdoors and, with its exhaust heat Q H , warming the indoors. Perhaps this seems a little silly, but consider the following. Electricity can be directly used to heat a home by passing an electric current through a heating coil. This is a direct, 100 % conversion of work to heat. That is, 16.0 \rm kW of electric power (generated by doing work at the rate 16.0 kJ/s at the power plant) produces heat energy inside the home at a rate of 16.0 kJ/s . Suppose that the neighbor's home has a heat pump with a coefficient of performance of 6.00, a realistic value. NOTE: With a refrigerator, "what you get" is heat removed. But with a heat pump, "what you get" is heat delivered. So the coefficient of performance of a heat pump is K= Q H / W in . An average price for electricity is about 40 MJ per dollar. A furnace or heat pump will run typically 300 hours per month during the winter. (Part A How much electric power (in kW ) does the heat pump use to deliver 16.0 kJ/s of heat energy to the house? /Part B What does one month's heating cost in the home with a 16.0 kW electric heater? & Part C What does one month's heating cost in the home of a neighbor who uses a heat pump to provide the same amount of heating?

a. Outline the approach Business Process Re-engineering (BPR) advocates regarding organization design.

b.What are the key benefits considered forthcoming from this approach?

Please describe in great detail how to determine is a Conductive medium dispersive or dispersionless?

Write a conclusion to answer the following question. What happens to make electrical current flow in a generator? Include these ideas:

a. The magnetic field

b. The movement of the magnet

c. The description of electrons in the wire

d. How the magnetic field affects the electrons in the wire

If the line of best fit for your torque speed curve is described by the following equation, calculate the no-load speed of the motor. T= -0.021x+0.32

1. What is ABNORMAL EVENTS?

2. What is MODIFICATIONS?

3. What is CERTIFICATE OF RELEASE TO SERVICE?

4. Who is TYPE DESIGN ORGANIZATION? GIVE SAMPLE

5. What is the difference between CONFIGURATION DEVIATION LIST and MINIMUM EQUIPMENT list?

Explain Failure mode effect analysis (FMEA) .When you design seat of rickshow.

Estimate the number for stages required for the turbine which is a multi-stage axial turbine designed with impulse stages and operating with an inlet pressure and temperature of 6 bar and 900 K and outlet pressure of 1 bar.

The isentropic efficiency of the turbine is 85 %.

All the stages are to have a nozzle outlet angle of 75 degrees and equal inlet and outlet rotor blade angles.

Mean blade speed is 250 m/s and the axial velocity is 150 m/s and is a constant across the turbine.

This is problem 7-15 from El-Wakil’s Powerplant Technology book -- a spray pond is used to cool a 200-MW powerplant that has a 39 percent efficiency. The condenser cooling water outlet temperature is 90 degF. The atmosphere is at 70 degF and 60 percent relative humidity. The spray nozzles have ntu = 0.15, r = 0.015 and f = 0.25. Determine (a) the number of spray modules required, (b) the flow per module, in gallons per minute, and (c) the approximate pond area, in acres.

What is the importance of ice protection on the aircraft and what do you think is the best way to prevent ice forming on the aircraft on ground and inflight?

This is problem 7-3 from El-Wakil’s Powerplant Technology book -- a natural-draft cooling tower is 450 ft high. Air enters the tower at 14.696 psia, 50°F, and 50 percent relative humidity and leaves in a saturated condition. The pressure drop in the tower is 0.015 psi. Calculate (a) the air exit temperature, in degrees Fahrenheit, and (b) the makeup due to evaporation, in pound mass per pound mass of dry air.

This is problem 6-9 from El-Wakil’s Powerplant Technology book -- consider for simplicity an ideal Rankine cycle with turbine inlet and exit steam at 2500 psia and 1000°F, and 1 psia, respectively, and no feedwater heating. The steam mass flow rate is 2x10⁶ lb_m/h. The plant has two-pass surface condenser with 45-ft-long 7/8-in 18-BWG-type 304 stainless steel tubes. Cooling water enters the tubes at 70°F and 7 ft/s. With no flows into the condenser other than turbine steam, find (a) the plant power, in megawatts, and efficiency and (b) the total number of tubes if the condenser terminal temperature difference is 8°F.

This is problem 6-6 from El-Wakil’s Powerplant Technology book -- consider a powerplant operating on an ideal Rankine cycle without feedwater heating. Steam enters the turbine saturated at 1000°F at the rate 5x10⁶ lb_m/h. The turbine exhausts to a surface condenser area of 402,467 ft² and cooling water inlet temperature of 60°F. Calculate (a) the plant net power, in megawatts, (b) the plant efficiency, in percent, (c) the cooling water exit temperature, in degrees Fahrenheit, and (d) the water flow rate, in pound mass per hour and cubic feet per minute.

Please derive the full expression of the rotation matrices R123(φ, θ, ψ) and R321(ψ, θ, φ).