Power plants – Motive fluid energized by externally applied heat – Process of power production or system operation
Patent
1990-07-06
1991-04-02
Ostrager, Allen M.
Power plants
Motive fluid energized by externally applied heat
Process of power production or system operation
F01K 2510
Patent
active
050037820
ABSTRACT:
A gas expander based power plant system for generating electricity at a pressure reducing station of a gas transmission pipeline is disclosed where gas at high pressure is being delivered to the distribution or gas utilization system; by means of pressure reduction with a gas expander system capable of accommodating fluctuating high pressure gas conditions and maintaining desired lower pressure gas conditions, which comprise the steps of generating steam, condensing the steam in a heat exchanger and using the heat of condensation of the steam to heat a portion of high pressure gas in a controlled manner to maintain the required gas conditions of the lower pressure line throughout the range of operation, and passing the high pressure gas through a gas expander to drive an electrical generator. In one embodiment of the system, a portion of the gas fuel supplied to a steam generator is utilized as a motive gas supply for a gas ejector which creates a vacuum in the shaft sealing chamber of the gas expander, evacuates the leakage gas thereby preventing the release of gas to the surrounding, and combines evacuated gas with remainder of gas fuel for combustion in a steam generator.
REFERENCES:
patent: 4328674 (1982-05-01), Wenzel
patent: 4693072 (1986-08-01), McLean et al.
patent: 4920749 (1990-05-01), Letarte
LandOfFree
Gas expander based power plant system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gas expander based power plant system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas expander based power plant system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-320100