Patents by Inventor Ching-Jen Tang

Ching-Jen Tang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11703266
    Abstract: A cooling system and a related method is presented. The cooling system includes a reservoir configured to selectively supply a cooling fluid; a circulation loop fluidly coupled to the reservoir, and configured to circulate the cooling fluid to and from the reservoir, and a heat exchanger thermally coupled to the circulation loop and configured to exchange heat with the cooling fluid. The reservoir includes a refrigerant and an anti-freeze additive. The anti-freeze additive is characterized by a lower critical solution temperature (LCST) such that when an operating temperature of the reservoir is greater than the LCST, the reservoir is configured to supply a cooling fluid including the refrigerant to the circulation loop; and when the operating temperature of the reservoir is lower than the LCST, the reservoir is configured to supply a cooling fluid including the refrigerant and the anti-freeze additive to the circulation loop.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: July 18, 2023
    Assignee: General Electric Company
    Inventors: Ching-Jen Tang, Peter John Bonitatibus, Jr., John Brian McDermott
  • Patent number: 11466189
    Abstract: An absorption cycle apparatus including a working fluid is presented. The working fluid includes a metal halide, water and a zwitterion additive, wherein the zwitterion additive includes an amino acid, 2,2?-[(phosphonomethyl)imino]diaceticacid, 3-[(2-hydroxyethyl)amino]-1-propanesulfonic acid, or combinations thereof. A method of controlling crystallization in a working fluid of an absorption cycle apparatus is also presented.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: October 11, 2022
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Ching-Jen Tang, Peter John Bonitatibus, Matthew Paul Rainka
  • Patent number: 11286855
    Abstract: A turbine system includes a compressor section, an inlet cooling system coupled upstream of the compressor section and configured to cool ambient air entering the compressor section, and a turbine section coupled in flow communication with the compressor section and including at least one hot gas path component. The system further includes a controller configured to receive feedback parameters indicative of a temperature of the at least one hot gas path component, estimate a remaining life of the at least one hot gas path component based on the received feedback parameters, determine a desired power output of the turbine system based on the estimated remaining life of the at least one hot gas path component and a cooling capacity of the inlet cooling system, and control operation of the turbine system to cause the turbine system to generate the desired power output.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: March 29, 2022
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Ching-Jen Tang, Nilesh Tralshawala
  • Publication number: 20200291857
    Abstract: A turbine system includes a compressor section, an inlet cooling system coupled upstream of the compressor section and configured to cool ambient air entering the compressor section, and a turbine section coupled in flow communication with the compressor section and including at least one hot gas path component. The system further includes a controller configured to receive feedback parameters indicative of a temperature of the at least one hot gas path component, estimate a remaining life of the at least one hot gas path component based on the received feedback parameters, determine a desired power output of the turbine system based on the estimated remaining life of the at least one hot gas path component and a cooling capacity of the inlet cooling system, and control operation of the turbine system to cause the turbine system to generate the desired power output.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 17, 2020
    Inventors: Ching-Jen Tang, Nilesh Tralshawala
  • Patent number: 10704467
    Abstract: The present application provides a thermal storage system for use with a gas turbine engine having an intercooler. The thermal storage system may include a secondary cooler in communication with the intercooler, a thermal energy storage tank in communication with the secondary cooler and the intercooler, and a temperature conditioning device positioned about the gas turbine engine and in communication with the thermal energy storage tank.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: July 7, 2020
    Assignee: General Electric Company
    Inventors: Douglas Alan Jones, Ching-Jen Tang
  • Publication number: 20200208899
    Abstract: A cooling system and a related method is presented. The cooling system includes a reservoir configured to selectively supply a cooling fluid; a circulation loop fluidly coupled to the reservoir, and configured to circulate the cooling fluid to and from the reservoir, and a heat exchanger thermally coupled to the circulation loop and configured to exchange heat with the cooling fluid. The reservoir includes a refrigerant and an anti-freeze additive. The anti-freeze additive is characterized by a lower critical solution temperature (LCST) such that when an operating temperature of the reservoir is greater than the LCST, the reservoir is configured to supply a cooling fluid including the refrigerant to the circulation loop; and when the operating temperature of the reservoir is lower than the LCST, the reservoir is configured to supply a cooling fluid including the refrigerant and the anti-freeze additive to the circulation loop.
    Type: Application
    Filed: May 11, 2017
    Publication date: July 2, 2020
    Inventors: Ching-Jen TANG, Peter John BONITATIBUS, JR., John Brian MCDERMOTT
  • Publication number: 20200172782
    Abstract: An absorption cycle apparatus including a working fluid is presented. The working fluid includes a metal halide, water and a zwitterion additive, wherein the zwitterion additive includes an amino acid, 2,2?-[(phosphonomethyl)imino]diaceticacid, 3-[(2-hydroxyethyl)amino]-1-propanesulfonic acid, or combinations thereof. A method of controlling crystallization in a working fluid of an absorption cycle apparatus is also presented.
    Type: Application
    Filed: April 5, 2017
    Publication date: June 4, 2020
    Inventors: Ching-Jen TANG, Peter John BONITATIBUS, Matthew Paul RAINKA
  • Patent number: 10465982
    Abstract: A method includes directing a refrigerant fluid mixture and a flow of natural gas through a first heat exchanger for exchanging heat between a natural gas flow path and a first refrigerant flow path. The method also includes expanding the flow of natural gas exiting from the first heat exchanger via a first throttle valve. Further, the method also includes directing a generated cold natural gas vapor and a slurry having a liquefied natural gas and solidified carbon dioxide through a filter sub-assembly. Moreover, the method also includes separating the solidified carbon dioxide by the filter sub-assembly to form a purified liquefied natural gas. Finally, the method includes directing a pulse of a cleaning fluid having at least one of methane and carbon dioxide through the filter sub-assembly to remove the solidified carbon dioxide therefrom and storing the purified liquefied natural gas in a storage tank assembly.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: November 5, 2019
    Assignee: General Electric Company
    Inventors: Ching-Jen Tang, Douglas Carl Hofer, Vitali Victor Lissianski
  • Publication number: 20180313270
    Abstract: The present application provides a thermal storage system for use with a gas turbine engine having an intercooler. The thermal storage system may include a secondary cooler in communication with the intercooler, a thermal energy storage tank in communication with the secondary cooler and the intercooler, and a temperature conditioning device positioned about the gas turbine engine and in communication with the thermal energy storage tank.
    Type: Application
    Filed: April 27, 2017
    Publication date: November 1, 2018
    Inventors: Douglas Alan Jones, Ching-Jen Tang
  • Publication number: 20180252468
    Abstract: A method includes directing a refrigerant fluid mixture and a flow of natural gas through a first heat exchanger for exchanging heat between a natural gas flow path and a first refrigerant flow path. The method also includes expanding the flow of natural gas exiting from the first heat exchanger via a first throttle valve. Further, the method also includes directing a generated cold natural gas vapor and a slurry having a liquefied natural gas and solidified carbon dioxide through a filter sub-assembly. Moreover, the method also includes separating the solidified carbon dioxide by the filter sub-assembly to form a purified liquefied natural gas. Finally, the method includes directing a pulse of a cleaning fluid having at least one of methane and carbon dioxide through the filter sub-assembly to remove the solidified carbon dioxide therefrom and storing the purified liquefied natural gas in a storage tank assembly.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Inventors: Ching-Jen Tang, Douglas Carl Hofer, Vitali Victor Lissianski
  • Patent number: 9752728
    Abstract: A cryogenic tank assembly includes a cryogenic tank having an internal volume that is configured to contain liquefied natural gas (LNG). The cryogenic tank includes an inlet and an outlet that are each fluidly connected to the internal volume. The assembly includes a recirculation conduit coupled in fluid communication between the inlet and the outlet. The recirculation conduit extends along a path between the inlet and outlet external to the internal volume of the cryogenic tank such that the path is configured to be exposed to an ambient environment of the cryogenic tank. The recirculation conduit is configured to: receive a flow of LNG from the internal volume through the outlet; transfer heat from the ambient environment to the LNG flow to change the LNG flow to a flow of natural gas; and inject the natural gas flow into the internal volume of the cryogenic tank through the inlet.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: September 5, 2017
    Assignee: General Electric Company
    Inventors: Ching-Jen Tang, Laura Michele Hudy
  • Publication number: 20160123229
    Abstract: A cooling system for providing chilled air is disclosed, including a cooling coil; an evaporator and absorber contained within a vacuum chamber; and a desiccant that absorbs water vapor from the cooling process. The system also includes an external heat source for treating the desiccant; along with a regenerator to make the desiccant re-useable. At least one heat exchanger is also included, along with a source of make-up water in communication with the cooling coil. Related processes are also disclosed, along with a gas turbine engine that includes or is arranged in association with the cooling system.
    Type: Application
    Filed: October 12, 2015
    Publication date: May 5, 2016
    Inventors: Ching-Jen Tang, Andrew Philip Shapiro
  • Publication number: 20160109177
    Abstract: A system for natural gas liquefaction includes a natural gas source for providing a flow of natural gas and a moisture removal system located downstream of the natural gas source. The system includes a first heat exchanger located downstream of the moisture removal system for exchanging heat between the natural gas flow path and a first refrigerant flow path of a refrigerant cycle subsystem. The system includes one first throttle valve located downstream of heat exchanger for expanding the flow of natural gas and causing reduction in pressure and temperature of the flow of natural gas. The system includes a filter subassembly for separating solid particles present in the flow of natural gas. The system includes a second heat exchanger located downstream of the filter subassembly and is configured to transfer heat from a natural gas vapor flow path to a second refrigerant flow path of the refrigeration cycle subsystem.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 21, 2016
    Inventors: Ching-Jen Tang, Douglas Carl Hofer, Vitali Victor Lissianski
  • Publication number: 20150157963
    Abstract: A filter assembly for use in a natural gas liquefaction system is provided. The filter assembly includes a filter house that includes a first portion, a filter element positioned within the first portion and configured to collect solids entrained in slurry on a surface thereof, and a valve coupled to the first portion. A cleaning system is coupled to the filter house and configured to remove the solids from the surface of said filter element. The valve selectively actuates to facilitate removal of the solids from the surface of the filter element and channeling of the solids from the first portion through the valve.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 11, 2015
    Applicant: General Electric Company
    Inventors: Vitali Victor Lissianski, Douglas Carl Hofer, Ching-Jen Tang, Irfan Saif Hussaini
  • Publication number: 20150084246
    Abstract: A metallurgical furnace system having a furnace body at least partially defined by a refractory wall and configured for holding a molten metal therein. The system further including one or more cooling elements, each including a working fluid contained therein and defining a heat absorption section and a heat rejection section. The heat absorption section configured for disposing within the refractory wall to absorb heat from the refractory wall. The heat rejection section configured to reside outside the refractory wall to reject heat absorbed by the heat absorption section. The working fluid generating a vapor flow within the one or more cooling elements in response to absorbed heat. The cooling system further including a coolant flow in contact with an exterior surface of the one or more cooling elements for dissipating heat from the heat rejection section. A cooling system for a metallurgical furnace and method of cooling are also disclosed.
    Type: Application
    Filed: September 26, 2013
    Publication date: March 26, 2015
    Applicant: General Electric Company
    Inventors: Ching Jen Tang, Joo Han Kim
  • Publication number: 20140174106
    Abstract: A cryogenic tank assembly includes a cryogenic tank having an internal volume that is configured to contain liquefied natural gas (LNG). The cryogenic tank includes an inlet and an outlet that are each fluidly connected to the internal volume. The assembly includes a recirculation conduit coupled in fluid communication between the inlet and the outlet. The recirculation conduit extends along a path between the inlet and outlet external to the internal volume of the cryogenic tank such that the path is configured to be exposed to an ambient environment of the cryogenic tank. The recirculation conduit is configured to: receive a flow of LNG from the internal volume through the outlet; transfer heat from the ambient environment to the LNG flow to change the LNG flow to a flow of natural gas; and inject the natural gas flow into the internal volume of the cryogenic tank through the inlet.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Applicant: General Electric Company
    Inventors: Ching-Jen Tang, Laura Michele Hudy
  • Patent number: 8695363
    Abstract: A system, such as a thermal energy management system, is provided. The system can include an absorption module and an evaporation module. The absorption module can include at least two absorption chambers, each absorption chamber being configured to receive liquid absorbent. The evaporation module can be in independent selective fluid communication with each of the absorption chambers, and can be configured to receive and cause therein evaporation of a refrigerant.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: April 15, 2014
    Assignee: General Electric Company
    Inventors: Ching-Jen Tang, William Dwight Gerstler
  • Publication number: 20130312440
    Abstract: An absorption chiller system is provided. The system includes an evaporator, an absorber, a divider, a recirculating loop, and a primary heater. The evaporator includes a first working fluid inlet and a first working fluid outlet. The absorber includes a second working fluid inlet and a second working fluid outlet. The divider has opposing first and second sides, wherein the first side is in fluid communication with the evaporator and the second side is in fluid communication with the absorber. The recirculating loop connects the first working fluid outlet back to the evaporator, and the primary heater is disposed in thermal communication with the recirculating loop.
    Type: Application
    Filed: May 24, 2012
    Publication date: November 28, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ching-Jen Tang, William Dwight Gerstler
  • Patent number: 8545681
    Abstract: Disclosed is a process for improving the efficiency of a combined-cycle power generation plant and desalination unit. The process includes supplying exhaust gases from a gas turbine set used to generate electrical power to a heat recovery steam generator (HRSG) and then directing the steam from the HRSG to a steam turbine set. Salinous water is supplied into an effect of the desalination unit. Steam exhausted from the steam turbine set is utilized in the effect of the desalination unit to produce a distillate vapor and brine from the effect by heat exchange. Additionally, steam is introduced steam from at least one additional heat source from the combined-cycle power generation plant to the effect to increase the mass flow rate of steam into the effect. In one embodiment, the additional heat source is an intercooler heat exchanger. Heated water from the intercooler heat exchanger is provided to a reduced atmosphere flash tank, and the steam flashed in the flash tank is provided to the effect.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: October 1, 2013
    Assignee: General Electric Company
    Inventors: Andrew Philip Shapiro, Nishith Vora, Ching-Jen Tang, AliciA Jillian Jackson Hardy, Douglas Westerkamp
  • Publication number: 20120240605
    Abstract: A system, such as a thermal energy management system, is provided. The system can include an absorption module and an evaporation module. The absorption module can include at least two absorption chambers, each absorption chamber being configured to receive liquid absorbent. The evaporation module can be in independent selective fluid communication with each of the absorption chambers, and can be configured to receive and cause therein evaporation of a refrigerant.
    Type: Application
    Filed: March 24, 2011
    Publication date: September 27, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ching-Jen Tang, William Dwight Gerstler