Control of flow through a vapor generator
Abstract
In a Rankine cycle system wherein a vapor generator receives heat from exhaust gases, provision is made to avoid overheating of the refrigerant during ORC system shut down while at the same time preventing condensation of those gases within the vapor generator when its temperature drops below a threshold temperature by diverting the flow of hot gases to ambient and to thereby draw ambient air through the vapor generator in the process. In one embodiment, a bistable ejector is adjustable between one position, in which the hot gases flow through the vapor generator, to another position wherein the gases are diverted away from the vapor generator. Another embodiment provides for a fixed valve ejector with a bias towards discharging to ambient, but with a fan on the downstream side of said vapor generator for overcoming this bias.
- Inventors:
- Issue Date:
- Research Org.:
- UTC Power Corporation, South Windsor, CT (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175541
- Patent Number(s):
- 6962051
- Application Number:
- 10/463,002
- Assignee:
- UTC Power Corporation
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01K - STEAM ENGINE PLANTS
F - MECHANICAL ENGINEERING F22 - STEAM GENERATION F22B - METHODS OF STEAM GENERATION
- DOE Contract Number:
- FC02-00CH11060
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Radcliff, Thomas D. Control of flow through a vapor generator. United States: N. p., 2005.
Web.
Radcliff, Thomas D. Control of flow through a vapor generator. United States.
Radcliff, Thomas D. Tue .
"Control of flow through a vapor generator". United States. https://www.osti.gov/servlets/purl/1175541.
@article{osti_1175541,
title = {Control of flow through a vapor generator},
author = {Radcliff, Thomas D.},
abstractNote = {In a Rankine cycle system wherein a vapor generator receives heat from exhaust gases, provision is made to avoid overheating of the refrigerant during ORC system shut down while at the same time preventing condensation of those gases within the vapor generator when its temperature drops below a threshold temperature by diverting the flow of hot gases to ambient and to thereby draw ambient air through the vapor generator in the process. In one embodiment, a bistable ejector is adjustable between one position, in which the hot gases flow through the vapor generator, to another position wherein the gases are diverted away from the vapor generator. Another embodiment provides for a fixed valve ejector with a bias towards discharging to ambient, but with a fan on the downstream side of said vapor generator for overcoming this bias.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 08 00:00:00 EST 2005},
month = {Tue Nov 08 00:00:00 EST 2005}
}