Coefficient of performance of heat pump = usefule heat / work donr
COP = Q/W
5.6 = Q/1
Q = 5.6 J
so amount of heat pulled in is 5.6 J
If the coefficient of performance for a heat pump is 5.60, determine the amount of heat...
What is the coefficient of performance of an ideal heat pump that extracts heat from 5.0 ∘C air outside and deposits heat inside a house at 23 ∘C ? (The answer is 16. COP=16.) If this heat pump operates on 1200 W of electrical power, what is the maximum heat it can deliver into the house each hour? (This is what I am having trouble answering. The answer is not to multiply 16 and 1200 to get 19,200 J, nor...
A heat pump has a coefficient of performance of 3.90 and operates with a power consumption of 6850 W. (a) How much energy does it deliver into a home during 4 h of continuous operation? (b) How much energy does it extract from the outside air in 4 h?
QS. An air-conditioner with a power input of 1.5 kW is working as a refrigerator (B-3) or as a heat pump (B' 4). It maintains an office at 20C year round which exchanges 0.5 kW per degree temperature difference with the atmosphere. There is a range of the outside temperatures for which this unit is sufficient a) Write the expressions that define the coefficient of performance (COP) for a refrigerator (B) and a heat pump (B) b) Calculate the maximum...
#10: A heat pump requires 430 W of electrical power to deliver heat to your house at a rate of 2390 J per second. How many joules of energy are extracted from the cold air outside each second? #11: The coefficient of performance for a heat pump is defined as the ratio of the heat delivered to the warmer system to the work required. If a heat pump requires an input of 360 W of electrical energy and has a...
Find the maximum possible coefficient of performance for a heat pump used to heat a house in a northerly climate in winter. The inside is kept at 21 ∘C while the outside is -25 ∘C. COPmax = ??
A Peltier cooler is a heat pump that can be set to either cool or heat its contents. One such cooler uses 100 W of input power whether heating or cooling. Which is greater, its coefficient of performance for cooling or its coefficient of performance for heating? netyplugintie pho/1817827m COP oing cWn COP,eating = QH / W Heat pump W. A. Cooling B. Heating in 100 J/s C. The two coefficients are the same.
Problem 2) A heat pump cycle whose coefficient of performance is 2.5 delivers energy by heat transfer to a dwelling at a rate of 20 kW. (a) Determine the net power required to operate the heat pump, in kW. (b) Evaluating electricity at $0.08 per determine the cost of electricity in a month when the heat pump operates for 200 hours. Problem 3) A power cycle receives energy by heat transfer from the combustion of fuel at a rate of 300 MW. The thermal efficiency...
6. O -19.09 points SerCP9 12.P.038. A heat pump has a coefficient of performance of 3.75 and operates with a power consumption of 6.89 x 10 W. (a) How much energy does it deliver into a home during 4 h of continuous operation? (b) How much energy does it extract from the outside air? Need Help? Talk to a Tutor
What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold temperature of -25.0°C to a hot temperature of 40.0°C.
earning Goal: To understand that a heat engine run backward is a heat pump that can be used as a refrigerator. By now you should be familiar with heat engines--devices, theoretical or actual, designed to convert heat into work. You should understand the following: Heat engines must be cyclical; that is, they must return to their original state some time after having absorbed some heat and done some work). Heat engines cannot convert heat into work without generating some waste...