What is its cop and the electricity it consumes

Assignment Help Mechanical Engineering

Reference no: EM13719973

An air conditioner can produce a 120 kJ/min cooling effect while rejecting 2.5kW of heat. What is its COP and the electricity it consumes? An inventor claims to have designed a system which can produce the same cooling rate but consumes only 0.05kW electricity to maintain a house temperature of 18^oC when the outdoor temperature is 30oC. Is it an innovative design or a false design?

Reference no: EM13719973

Questions Cloud

A torsional helical spring is used to hold a door closed : A torsional helical spring is used to hold a door closed. The handle on the door is located 30 inches from the center of the torsional helical spring. The pull on the handle should be 1 pound when the door is closed and 3 pounds after the door has ..

What are the temperature on the left edge of the wall : A one dimensional wall of material (Kw=10w/mk) is 50 mm thick with uniform heat generation q‘‘‘=5*10^6w/m^3. The left side is exposed to a fluid hl=500w/m^2k at 20 degree Celsius. The right side has a 10mm thick plate attached that has no heat genera..

Heat rejection rate to the surrounding : The thermal efficiency of a heat engine is 40% and produces 100kW. Please determine the heat transfer rate to this engine and heat rejection rate to the surrounding.

Determine heat rejection rate to the surrounding : R-134a enters the condenser of a refrigerator at 800kPa and 50oC at a rate of 0.018kg/s and leaves at 800kPa as a saturated liquid. It is known that the compressor consumes 1.2kW of electricity at this operating condition. Determine 1) heat rejection..

What is its cop and the electricity it consumes : An air conditioner can produce a 120 kJ/min cooling effect while rejecting 2.5kW of heat. What is its COP and the electricity it consumes? An inventor claims to have designed a system which can produce the same cooling rate but consumes only 0.05kW e..

Determine the heat supplied to the heat engine : A reversible heat engine receives heat from a heat source at 1000oC and has a thermal efficiency of 45%. The heat engine does maximum work equal to 600kJ. Determine the heat supplied to the heat engine, heat rejected to the heat sink, and the tempera..

What is the isentropic efficiency : H2O is used by a turbine operating at steady state with a mass flow rate of 4 lbm/s. The water at the inlet is 140 PSI and 1000oF and at the outlet it is 2 psi. Knowing the power developed is 1,600 Btu/s, what is the isentropic efficiency?

Give brief explanation of respiratory hazards : Choose two of the five Respiratory Hazards. Provide a brief explanation of each hazard and describe a situation in which you may encounter them. What effects would each of these hazards have on your body

What are the advantages supplied air respirator : What are the advantages and disadvantages of the S.A.R. versus the A.P.R. What questions should you ask prior to selecting a respirator

User Account

All Pages