TITLE.PM5

598 ENGINEERING THERMODYNAMICS dharm \M-therm\Th12-4.pm5 1 Boiler H.P. 2 Alternator üýþ 3- supplyf ( ) Schematic arrangement of ...

VAPOUR POWER CYCLES 599 dharm \M-therm\Th12-4.pm5 Work done by the pump P 2 , WP 2 = vw 2 (1 – m 1 )(150 – 5) × 10^5 × 10–3 kJ/k ...

600 ENGINEERING THERMODYNAMICS dharm \M-therm\Th12-4.pm5 h 5 = 2210 kJ/kg h 4 ′ – h 5 ′ = 0.83(h 4 ′ – h 5 ) = 0.83(3072.5 – 221 ...

VAPOUR POWER CYCLES 601 dharm \M-therm\Th12-4.pm5 3072.5 m + 163.4 – 163.4 m = 762.6 ∴ m = (.. (.. 762 6 163 4) 3072 5 163 4) − ...

602 ENGINEERING THERMODYNAMICS dharm \M-therm\Th12-4.pm5 (c) two isothermal processes and two constant pressure processes (d) no ...

VAPOUR POWER CYCLES 603 dharm \M-therm\Th12-4.pm5 Unsolved Examples A simple Rankine cycle works between pressure of 30 bar and ...

13 Gas Power Cycles 13.1. Definition of a cycle. 13.2. Air standard efficiency. 13.3. The Carnot cycle. 13.4. Constant Volume or ...

GAS POWER CYCLES 605 dharm \M-therm\Th13-1.pm5 The cycle is considered closed with the same ‘air’ always remaining in the cylin ...

606 ENGINEERING THERMODYNAMICS dharm \M-therm\Th13-1.pm5 Stage (1). Line 1-2 [Fig. 13.1 (a)] represents the isothermal expansion ...

GAS POWER CYCLES 607 dharm \M-therm\Th13-1.pm5 (iii)Entropy change during the heat rejection process, (S 3 – S 4 ) : Heat reject ...

608 ENGINEERING THERMODYNAMICS dharm \M-therm\Th13-1.pm5 (ii)The volume at the end of isothermal expansion, V 2 : Heat transferr ...

GAS POWER CYCLES 609 dharm \M-therm\Th13-1.pm5 Solution. Refer Fig. 13.4. Maximum pressure, p 1 = 18 bar Maximum temperature, T ...

610 ENGINEERING THERMODYNAMICS dharm \M-therm\Th13-1.pm5 p 3 = p 2 × V V 2 3 F HG I KJ γ = 12 × V V 1 4 F HG I KJ γ Q V V V V 4 ...

GAS POWER CYCLES 611 dharm \M-therm\Th13-1.pm5 (v)Power of the engine, P : Power of the engine working on this cycle is given by ...

612 ENGINEERING THERMODYNAMICS dharm \M-therm\Th13-1.pm5 Example 13.6. An ideal engine operates on the Carnot cycle using a perf ...

GAS POWER CYCLES 613 dharm \M-therm\Th13-1.pm5 13.4. Constant Volume or Otto Cycle This cycle is so named as it was conceived by ...

614 ENGINEERING THERMODYNAMICS dharm \M-therm\Th13-1.pm5 Let compression ratio, rc (= r) = v v 1 2 and expansion ratio, re (= r) ...

GAS POWER CYCLES 615 dharm \M-therm\Th13-1.pm5 = v (^1) rpp 1 γ− 1 ()()γ− −−^141 pv rr (^11) p 1 1 11 γ γ − ()()− −− ...[13.4 (a ...

616 ENGINEERING THERMODYNAMICS dharm \M-therm\Th13-1.pm5 Solution. Bore of the engine, D = 250 mm = 0.25 m Stroke of the engine, ...

GAS POWER CYCLES 617 dharm \M-therm\Th13-2.pm5 = 8 297 1 36 47 ()()2. 0. 0. − × = 1.334 bar Hence mean effective pressure = 1.33 ...