| 54 |
Titel |
TI |
[EN] Double pinch criterion for optimization of regenerative rankine cycles |
| 71/73 |
Anmelder/Inhaber |
PA |
MASSACHUSETTS INST TECHNOLOGY
|
| 72 |
Erfinder |
IN |
MITSOS ALEXANDER
;
ZEBIAN HUSSAM
|
| 22/96 |
Anmeldedatum |
AD |
18.05.2012 |
| 21 |
Anmeldenummer |
AN |
2012259005 |
|
Anmeldeland |
AC |
AU |
|
Veröffentlichungsdatum |
PUB |
14.07.2016 |
33
31
32 |
Priorität |
PRC
PRN
PRD |
US
201161488371
20.05.2011
|
33
31
32 |
PRC
PRN
PRD |
US
2012038703
18.05.2012
|
| 51 |
IPC-Hauptklasse |
ICM |
|
| 51 |
IPC-Nebenklasse |
ICS |
|
|
IPC-Zusatzklasse |
ICA |
|
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IPC-Indexklasse |
ICI |
|
|
Gemeinsame Patentklassifikation |
CPC |
F01K 13/02
F01K 17/06
F01K 19/00
F01K 25/08
F01K 7/22
F01K 7/24
F01K 7/38
F01K 7/40
F05D 2200/34
F05D 2220/31
F05D 2260/221
F05D 2260/606
F05D 2270/20
F05D 2270/301
F05D 2270/303
F05D 2270/3061
F05D 2270/66
F22D 1/32
F22D 1/325
G06F 17/10
G06F 17/50
Y02E 20/18
|
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MCD-Hauptklasse |
MCM |
F01K 25/08
(2006.01)
|
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MCD-Nebenklasse |
MCS |
F01K 23/10
(2006.01)
F01K 7/16
(2006.01)
|
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MCD-Zusatzklasse |
MCA |
|
| 57 |
Zusammenfassung |
AB |
[EN] Systems and methods are disclosed herein that generally involve a double pinch criterion for optimization of regenerative Rankine cycles. In some embodiments, operating variables such as bleed extraction pressure and bleed flow rate are selected such that a double pinch is obtained in a feedwater heater, thereby improving the efficiency of the Rankine cycle. In particular, a first pinch point is obtained at the onset of condensation of the bleed and a second pinch point is obtained at the exit of the bleed from the feedwater heater. The minimal approach temperature at the first pinch point can be approximately equal to the minimal approach temperature at the second pinch point. Systems that employ regenerative Rankine cycles, methods of operating such systems, and methods of optimizing the operation of such systems are disclosed herein in connection with the double pinch criterion. |
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