another level of carnotization of rankine model
DESCRIPTION
Another Level of Carnotization of Rankine Model. P M V Subbarao Professor Mechanical Engineering Department I I T Delhi. More Efforts to Realize Isothermal Heat Addition…. Reassessment Thru Carnot Model. 450 0 C. 311 0 C. ~250 0 C. ~273 0 C. h 3. Non-Isentropic Expansion !!!. 4. - PowerPoint PPT PresentationTRANSCRIPT
Another Level of Carnotization of Rankine Model
P M V SubbaraoProfessor
Mechanical Engineering DepartmentI I T Delhi
More Efforts to Realize Isothermal Heat Addition…..
C
C
CC
Reassessment Thru Carnot Model
Relative Benefits from remaing action
0
500
1000
1500
2000
2500
3000
3500
0 2 4 6 8 10 12 14 16p, MPa
hs &
wt
h3
Possible efficiency
0
0.1
0.2
0.3
0.4
0.5
0 2 4 6 8 10 12 14 16
p, MPa
Eff.
s
Non-Isentropic Expansion !!!
A Macro Carnot Cycle !!!!
Ideal Regenerative Cycle
Regenerative Turbine
Regenerative heat transfer. Change in kinetic and potential energies are negligible
3
4
T
inin mmCMSSSF ::
CVout
outin
inCV WgzVhmgzVhmQ
22
CVoutoutininREGEN WhmhmQ
ssuming a single fluid entering and leaving…
2374 hhmhhmhhmQW outinREGENCV
REGENQ
Analysis of Regeneration Cycle
s
12
2374
17
34
hhmW
hhhhmW
hhmQ
hhmQ
pump
turbine
out
in
additionHeat of Rate
outputPower Net cycle theof Efficiency
34
17
34
1734 1hh
hh
hhm
hhhhm
in
net
Q
W
smS
Analysis of Rankine Cycle with FWH
P M V SubbaraoProfessor
Mechanical Engineering Department
I I T DelhiEngineering solution to Pure Thoughts ..…..
Regeneration Cycle with Open FWH
’
212111 smSsmS
mixmix smSS 23
515616 smmSsmmS mixmix
55'6 smSS mix
S
5smmix
1m
Synthesis of Rankine Cycle with OFWH
5
p2=p6