| 54 |
Titel |
TI |
[EN] Double pinch criterion for optimization of regenerative Rankine cycles |
| 71/73 |
Anmelder/Inhaber |
PA |
MASSACHUSETTS INST TECHNOLOGY, US
;
MITSOS ALEXANDER, US
;
ZEBIAN HUSSAM, US
|
| 72 |
Erfinder |
IN |
MITSOS ALEXANDER, US
;
ZEBIAN HUSSAM, US
|
| 22/96 |
Anmeldedatum |
AD |
18.05.2012 |
| 21 |
Anmeldenummer |
AN |
201213475816 |
|
Anmeldeland |
AC |
US |
|
Veröffentlichungsdatum |
PUB |
28.07.2015 |
33
31
32 |
Priorität |
PRC
PRN
PRD |
US
201161488371
20110520
|
| 51 |
IPC-Hauptklasse |
ICM |
F01K 7/34
(2006.01)
|
| 51 |
IPC-Nebenklasse |
ICS |
F01K 13/00
(2006.01)
F01K 13/02
(2006.01)
F01K 17/06
(2006.01)
F01K 27/00
(2006.01)
F01K 7/22
(2006.01)
F01K 7/40
(2006.01)
F22D 1/32
(2006.01)
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IPC-Zusatzklasse |
ICA |
F01K 25/08
(2006.01)
F01K 7/24
(2006.01)
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IPC-Indexklasse |
ICI |
|
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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
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F05D 2260/606
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F05D 2270/301
F05D 2270/303
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G06F 30/00
Y02E 20/18
|
|
MCD-Hauptklasse |
MCM |
F01K 7/34
(2006.01)
|
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MCD-Nebenklasse |
MCS |
F01K 13/00
(2006.01)
F01K 13/02
(2006.01)
F01K 17/06
(2006.01)
F01K 27/00
(2006.01)
F01K 7/22
(2006.01)
F01K 7/40
(2006.01)
F22D 1/32
(2006.01)
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MCD-Zusatzklasse |
MCA |
F01K 25/08
(2006.01)
F01K 7/24
(2006.01)
|
| 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. |
| 56 |
Entgegengehaltene Patentdokumente/Zitate,
in Recherche ermittelt |
CT |
US000004841721A
US000006035643A
US020040238654A1
US020060254251A1
US020090071166A1
US020090125152A1
WO002004065763A2
|
| 56 |
Entgegengehaltene Patentdokumente/Zitate,
vom Anmelder genannt |
CT |
US000007040095B1
US000007325400B2
US000008091361B1
|
| 56 |
Entgegengehaltene Nichtpatentliteratur/Zitate,
in Recherche ermittelt |
CTNP |
|
| 56 |
Entgegengehaltene Nichtpatentliteratur/Zitate,
vom Anmelder genannt |
CTNP |
Extended European Search Report in corresponding European App. No. 12789604.1 dated Jun. 15, 2015 (7 pages). 1;
Farhad S. et al: "Efficient design of feedwater heaters network in steam power plants using pinch technology and exergy analysis", International Journal of Energy Research, vol. 32, No. 1, Jan. 2008, pp. 1-11. 1;
Linnhoff B. et al: "Integration of a new process into an existing site: A case study in the application of pinch technology", Journal of Engineering for gas turbines and power, vol. 113, Apr. 1, 1991, pp. 159-169. 1;
Zebian, H. et al: "A double-pinch criterion for regenerative Rankine cycles", Energy, vol. 40, No. 1, Jan. 31, 2012, pp. 258-270. 1
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