solution
solution.
A closed system of mass 2 lb undergoes two processes in series:
Process 1–2: v1 v2 4.434 ft3 /lb, p1 100 lbf/in.2 , u1 1105.8 Btu/lb, Q12 581.36 Btu
Save your time - order a paper!
Get your paper written from scratch within the tight deadline. Our service is a reliable solution to all your troubles. Place an order on any task and we will take care of it. You won’t have to worry about the quality and deadlines
Order Paper NowProcess 2–3: p2 p3 60 lbf/in.2 , v3 7.82 ft3 /lb, u3 1121.4 Btu/lb
Kinetic and potential energy effects can be neglected. Determine the work and heat transfer for process 2–3, each in Btu.
An electric generator coupled to a windmill produces an average electric power output of 15 kW. The power is used to charge a storage battery. Heat transfer from the battery to the surroundings occurs at a constant rate of 1.8 kW. Determine, for 8 h of operation
(a) the total amount of energy stored in the battery, in kJ.
(b) the value of the stored energy, in $, if electricity is valued at $0.08 per kW # h.
"Looking for a Similar Assignment? Get Expert Help at an Amazing Discount!"
