Question

TH H For each of the cyclic heat engines below, if Th = 1000 K and Ti is 400 K, Fill the following table and determine if these cycles are reversible, irreversible, or impossible and explain why? (Show all steps of your solution and fill the table). HEV w TL Determine if the cycle: Reversible, Irreversible or Impossible Case é. (kW) 0 (kW) W (kW) ne (%) a 100 500 b 360 600 600 с 400

Answer 1

so, the cycle is imposible heat effe Given that, TH TH - 1000K TL = 400k. QH ge .3 Reversible cannot elhiciency, QL Meneer sl TL TH TL -1- you crew. = 0.6. 1000 You ethereu rev = 60% case. la นา OL= 100 kw ง = 500 kw. w = QH-QLI wte. QH = 500 +100 = 600 kw 500 =0.8333 "HE QH 600 NHE = 83.33% MHE > Mtuisen

caso &H 600 kw W = 360 kw fool MHE 360 •3/0 = 0.6. H1 600 در بازار را MHE 60%, Mthiren. so, the cycle is Reversible heat engine از را برا uoo kw. casec dy=600kw. OLE = 400 AL = 600-400 = 2006 W = 2ookwwtord ů=&h N 3/8 200 = 0.3333 MHE NHE soo at od 5001400 33.33%, = <nthare so, the cyele is Irreversible healeyfiul LAOS <reren in irreversible Reversible > thisen, Impossible Atheres, HE

case, &H (kw) Qc kwo) Wikw) | Mue Mul cycle a. 600 83.33 100 impossible b. 600 240 360 GOU Reversible ci 600 400 200 33.336 Irreversible