Question: We propose to heat a house in the winter with a heat pump. The house is to be maintained at 20C at all times. When

We propose to heat a house in the winter with a heat pump. The house is to be maintained at 20°C at all times. When the ambient temperature outside drops to −10°C, the rate at which heat is lost from the house is estimated to be 25 kW. What is the minimum electrical power required to drive the heat pump?

Step by Step Solution

★★★★★

3.42 Rating (152 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Minimum power if we assu... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

E-ME-T (819).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

A heat pump is used to heat a house in the winter and to cool it in the summer. During the winter, the outside air serves as a low -temperature heat source; during the summer, it acts as a...

A heat pump that is used to heat a house has a COP of 2.5. That is, the heat pump delivers 2.5 kWh of energy to the house for each 1 kWh of electricity it consumes. Is this a violation of the first...

A large refrigeration plant is to be maintained at - 15oC, and it requires refrigeration at a rate of 100 kW. The condenser of the plant is to be cooled by liquid water, which experiences a...

( A ) A heat pump is to be used to heat a house during the winter in Canada. The house is to be maintained at 2 1 C at all times. The house is estimated to be losing heat at a rate of 1 3 5 , 0 0 0 k...

High-temperature reservoir at Ty= 652C Qu=500 kJ 5.2.1 A Carnot heat engine receives 500 kJ of heat per cycle from a high-temperature source at 652C and rejects heat to a low-temperature sink at 30C....

Learning Goal: To understand what a heat engine is and its theoretical limitations. Ever since Hero demonstrated a crude steam turbine in ancient Greece, humans have dreamed of converting heat into...

q4 In this problem you will estimate the heat lost by a typical house: assuming that the temperature inside is 2'3\" = 20C and the temperature outside is TDu = 0"C. The walls and uppermost ceiling oi...

q4 Part A In this problem you will estimate the heat lost by a typical house, assuming that the temperature inside s Tin = 20"C and the temperature outside is How much heat per second H (= Q/AT) is...

Your geothermal heat pump is used to heat your house in the winter. The heat pump is operated as a vapor-compression cycle. The design is such that there must be a 10 degree temperature difference...

(2 points) A heat pump is used to heat a house during the cold winter. The house is to be maintained at a constant 22.4C. When the outside temperature is -6.7C, the house loses heat at a rate of...

Bonds of Zello Corporation with a par value of $1,000 sell for $960, mature in 5 years, and have a 7% annual coupon rate paid semiannually. a. Calculate the: i. Current yield. ii. Yield to maturity...

A 73-kg gymnast is executing a series of full-circle swings on the horizontal bar. In the position shown he has a small and negligible clockwise angular velocity and will maintain his body straight...

Taylor receives $ 3 0 0 from his grandmother for his birthday and uses it all to buy shares of stock in Harley - Davidson, Inc. A . The opportunity cost of buying the Harley Davidson shares is the...

Nicole had a 5-year-old son, Karson, who had been diagnosed by his pediatric psychiatrist with ADHD. The physician tried multiple different medications and dosages with varying results to help...

Dr. Alimam is studying infants' ability to distinguish shapes. He shows an infant a shape until the infant loses interest in the shape, and then he shows the infant a different shape. If the infant...

For the spirometer activities, record experimental respiratory volumes as determined in the laboratory. (Corrected values and FEV1, are for the recording spirometer only.) Average TV: ml Corrected...

There are a number of theories of the term structure of interest rates including the unbiased expectations hypothesis, preferred habitat hypothesis, and market segmentation hypothesis. Discuss the...

A hardware store stocks eight types of pipes, one of which is stainless steel (SS). Assuming there are at least 20 pipes of each type, how many ways can a total inventory of 20 pipes be distributed...

Expand each of the following expressions by using algebra discs. Alternatively, you may visit http://www.shinglee.com.sg/StudentResources/ to access the Alge Tools software (Go to algedisc/Quadratic...

Help and explanation for homework question For the Data presented below; what is the value of SS Between-People? Sub Purple (X - M) (X-M)^2 White (X - M) (X-M)^2 Mean People 1 75 0 71 O O 73.00 2 76...

Construct a Binomial probability distrubtion table using n = 5 and p = {1.21. Next, record the mean and standard deviation of the distribution below. Where necessary, round all numbers to four...

North Cascades Company is considering a new project that will require an initial cash investment of $250,000. The project will produce no cash flows for the first two years. The projected cash flows...