Engineering, 21.02.2020 17:10 GreenHerbz206
A heat pump cycle whose coefficient of performance is 2.5 delivers energy by heat transfer to a dwelling at a rate of 20kW.
(a) Determine the net power required to operate the heat pumpin kW.
(b)Evaluating electricity at $0.08 per kW*h, determine thecost of electricity in a month when the heat pump opearates for 200hours.
Answers: 1
Another question on Engineering
Engineering, 04.07.2019 18:10
Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.
Answers: 1
Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Engineering, 04.07.2019 18:10
Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.
Answers: 2
Engineering, 04.07.2019 19:10
What are the major differences between injection molding and extrusion?
Answers: 2
You know the right answer?
A heat pump cycle whose coefficient of performance is 2.5 delivers energy by heat transfer to a dwel...
Questions
Business, 11.10.2019 19:30
Mathematics, 11.10.2019 19:30
Computers and Technology, 11.10.2019 19:30
Biology, 11.10.2019 19:30
Biology, 11.10.2019 19:30
Mathematics, 11.10.2019 19:30
