All categories

3 years ago

A heat pump cycle whose coefficient of performance is 2.5 delivers energy by heat transfer to a dwelling at a rate of 20kW.

Engineering

1 answer:

12345 [234]3 years ago

8 0

Answer:

a) 8kW

b) $128

Explanation:

Given the coefficient of performance of the heat pump cycle to be 2.5

Energy delivered by the heat pump = 20kW

a) net power required to operate the heat pump = Energy delivered / coefficient of performance

Net power required = 20/2.5

= 8kW

b) Given the cost of electricity is $0.08 for 1kWhour

Since net power required to operate heat pump = 8kW

If the heat pump operate for 200hours, total power required for a month = 8kW×200hours = 1600kWhour

since 1kWh of electricity costs $0.08, cost of electricity used in a month when the pump operates for 200hour will be 1600kWh×$0.08 which is equivalent to $128

You might be interested in

A master stud pattern is laid out somewhat<br> like a?

Svetradugi [14.3K]

Answer:

••• like a story pole but has information for only one portion of the wall. system. methods and materials of construction.

3 0

2 years ago

Example 1: the two dimensional points P1(0,0) and P2(1,0) and the two tangents P', (1,1) and P2 (0,-1).find the equation of the

Stells [14]

Answer: (0,0)+ (1,0)= 1 lines upwards( suggesting that this is a line graph not saying it is but as an example) an (1,1) and (0,-1) all make a small square ( as this is a 2 dimensional graph that it has a negative side too,(below the positive side)) i hope this helps and is what you are looking for

Explanation:

6 0

3 years ago

Against which type of economic structure does conflict theory argue?

alisha [4.7K]

Answer:

b) socialism

Explanation:

Conflict theory focuses on the competition between groups within society over limited resources. Conflict theory views social and economic institutions as tools of the struggle between groups or classes, used to maintain inequality and the dominance of the ruling class.

HOPE IT HELPS!!!!!!!!!

4 0

3 years ago

Ideas for an invention for a 9 year old

allochka39001 [22]

> Try to conduct electricity for your whole home using domestic waste.

> A home made small washing machine to wash small clothes like socks

4 0

4 years ago

Read 2 more answers

2. What is the main job of a cylinder head?

Anna11 [10]

Answer:

Explanation:

The cylinder head sits on the engine and closes off the combustion chamber. The gap that remains between the cylinder head and the engine is completed by the head gasket. Another task of the cylinder head is to ensure the constant lubrication of the cylinder

3 0

3 years ago