Gas turbine and steam turbine powered chiller system

• US 6,050,083 A
• Filed: 04/22/1996
• Issued: 04/18/2000
• Est. Priority Date: 04/24/1995
• Status: Expired due to Fees

• Current Assignee: Meckler, Milton
• Original Assignee: Meckler, Milton
• Inventors: Meckler, Milton
• Primary Examiner(s): KIM, TAE JUN
• Application Number:
  US08/635,756
• Time in Patent Office: 1,457 Days
• Field of Search: 60/39.181, 60/39.182, 60/39.19, 60/728, 60/39.07, 60/655, 60/651, 62/238.3, 62/434
• US Class Current: 60/39.182
• CPC Class Codes: F01K 23/10 with exhaust fluid of one cycle heating the fluid in another cycle F01K17/025 takes precedence
• CPC Class Codes: F25B 15/02 without inert gas F25B15/004, F25B15/006, F25B15/008, F25B15/12, F25B15/14, F25B15/16 take precedence
• CPC Class Codes: Y02E 20/14 Combined heat and power generation [CHP]
• CPC Class Codes: Y02E 20/16 Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]

Abstract

A fueled refrigeration and generating system comprised of a Brayton cycle gas turbine producing shaft power preferably driving a refrigeration compressor. Heat is recovered from the high-temperature exhaust of the turbine by a heat exchanger using a high temperature-resistant heat transfer medium. The heat-transfer medium is used to produce high-temperature water and steam. A steam turbine is operated by the steam and produces shaft power for driving an electrical generator. Each of the turbines individually operates refrigeration and/or chiller compressors, or by gearing, drive a common power shaft. The system produces, selectively, hot water, steam, chilled water, ice and electrical energy.

Claims

1. A system for ice bank storage and for providing multiple power sources and including;

a primary fueled Brayton cycle turbine producing shaft power driving a base compressor for refrigeration and producing high heat energy exhaust gases;

a heat recovery device for transferring high heat energy from said exhaust gases into a first fluid heat transfer medium flowing therethrough;

a hot water generator for producing high temperature water in a closed circuit through said heat recovery device for the transfer of heat energy from said first fluid heat transfer medium to produce high temperature water;

a steam generator for producing steam from said high temperature water supplied thereto and in said closed circuit with said hot water generator and heat recovery device for the transfer of heat energy from said first fluid heat transfer medium to produce said steam;

a secondary Rankine cycle turbine operated by said steam from the steam generator and producing shaft power driving an ice chiller for circulation of a second heat transfer medium; and

an ice bank structure in a closed circuit with said circulation of said second heat transfer medium from said ice chiller for ice storage.

2. The system as set forth in claim 1, wherein the Rankine cycle turbine is coupled to said ice chiller with an overriding clutch.

3. The system as set forth in claim 1, wherein the Rankine cycle turbine is coupled by a clutch to an electrical generator.

4. The system as set forth in claim 1, wherein the water produced by said hot water generator operates an absorption chiller.

5. The system as set forth in claim 1, wherein the water produced by said hot water generator operates an absorption chiller and heat pump.

6. The system as set forth in claim 1, wherein the water produced by said hot water generator operates a freeze concentration process.

7. The system as set forth in claim 1, wherein the water produced by said hot water generator operates a jet refrigeration system.

8. A system for ice bank storage and for providing multiple power sources and including;

a primary fueled Brayton cycle turbine producing shaft power driving a base compressor for refrigeration and producing high heat energy exhaust gases;

a heat recovery device for transferring high heat energy from said exhaust gases into a first fluid heat transfer medium flowing therethrough;

a hot water generator for producing high temperature water in a closed circuit through said heat recovery device for the transfer of heat energy from said first fluid heat transfer medium to produce high temperature water;

a steam generator for producing steam from said high temperature water supplied thereto and in said closed circuit with said hot water generator and heat recovery device for the transfer of heat energy from said first fluid heat transfer medium to produce said steam;

a secondary Rankine cycle turbine operated by said steam from the steam generator and producing shaft power driving an ice chiller for circulation of a second heat transfer medium, an ice bank structure in a closed circuit with said circulation of said second heat transfer medium from said ice chiller for ice storage, wherein the circulation of said second heat transfer medium is controlled by valve means for selective flow through said ice bank structure and through a heat exchanger for transfer of heat from a chilled water supply line.