公开(公告)号：US11591956B2

公开(公告)日：2023-02-28

申请号：US17365341

申请日：2021-07-01

Applicant: MALTA INC.

Inventor： Raj Apte ,  Philippe Larochelle

IPC: F02C6/14 ,  F28D20/00 ,  F02C1/04 ,  F02C1/10 ,  F28F13/14

Abstract: Solid-state thermoclines with internal baffle structures are in used in place of heat exchangers in a closed thermodynamic cycle power generation or energy storage system, such as a closed Brayton cycle system. The baffles limit the conductive and/or radiative transfer of heat between a solid thermal medium within different zones defined by the baffle structures.

公开(公告)号：US20210040886A1

公开(公告)日：2021-02-11

申请号：US17069496

申请日：2020-10-13

Applicant: MALTA INC.

Inventor： Raj Apte ,  Richard DeVaul ,  Philippe Larochelle

IPC: F02C1/05 ,  F02C6/14 ,  F02C1/10 ,  F02C9/24 ,  H02K7/18

Abstract: Systems and methods relating to variable pressure turbines are disclosed. A power generation system may include a closed cycle system configured to generate power, a combustor, and a control system. The closed cycle system may include a working fluid circulating in a closed cycle path. The combustor may provide thermal energy to the working fluid. Further, the control system may be configured to determine to increase an amount of power generated by the closed cycle system, and in response to the determination to increase the amount of power generated by the closed cycle system, cause an increase in pressure of the working fluid in the closed cycle path.

公开(公告)号：US10907510B2

公开(公告)日：2021-02-02

申请号：US16260932

申请日：2019-01-29

Applicant: Malta Inc.

Inventor： Philippe Larochelle ,  Raj Apte

IPC: F01K13/02 ,  F01K7/16 ,  F01K25/10 ,  F25B13/00 ,  F25B9/00 ,  F25B25/00 ,  F25B9/06 ,  F01K3/06 ,  F01K3/12 ,  F01K3/18 ,  F01K7/38 ,  F22B1/00 ,  F01K3/02 ,  F01K25/06

Abstract: Extra heat in a closed cycle power generation system, such as a reversible closed Brayton cycle system, may be dissipated between discharge and charge cycles. An extra cooling heat exchanger may be added on the discharge cycle and disposed between a cold side heat exchanger and a compressor inlet. Additionally or alternatively, a cold thermal storage medium passing through the cold side heat exchanger may be allowed to heat up to a higher temperature during the discharge cycle than is needed on input to the charge cycle and the excess heat then dissipated to the atmosphere.

公开(公告)号：US10458284B2

公开(公告)日：2019-10-29

申请号：US15392927

申请日：2016-12-28

Applicant: Malta Inc.

Inventor： Raj Apte ,  Philippe Larochelle

IPC: F01K13/02 ,  F01K25/10 ,  F01D15/10 ,  F01K3/02 ,  F01K3/06 ,  F01K3/12 ,  F01K3/18 ,  F01K7/38 ,  F22B1/00 ,  F01K25/06

Abstract: Systems and methods for variable pressure inventory control of a closed thermodynamic cycle power generation system or energy storage system, such as a reversible Brayton cycle system, with at least a high pressure tank and an intermediate pressure tank are disclosed. Operational parameters of the system such as working fluid pressure, turbine torque, turbine RPM, generator torque, generator RPM, and current, voltage, phase, frequency, and/or quantity of electrical power generated and/or distributed by the generator may be the basis for controlling a quantity of working fluid that circulates through a closed cycle fluid path of the system.

公开(公告)号：US20190162122A1

公开(公告)日：2019-05-30

申请号：US16260929

申请日：2019-01-29

Applicant: Malta Inc.

Inventor： Raj Apte ,  Philippe Larochelle

IPC: F02C9/24 ,  F01K3/10 ,  F22B1/00 ,  B01D53/26 ,  F01K25/10 ,  F01K13/02 ,  F01K7/38 ,  F01K3/18 ,  F01K3/12 ,  F01K3/06 ,  F01K3/02 ,  F02C6/14 ,  F02C1/10 ,  F02C6/16 ,  F02C1/04 ,  F01K13/00 ,  F02C1/08 ,  F02C1/05 ,  F28D20/00

Abstract: Systems and methods relating to use of external air for inventory control of a closed thermodynamic cycle system or energy storage system, such as a reversible Brayton cycle system, are disclosed. A method may involve, in a closed cycle system operating in a power generation mode, circulating a working fluid may through a closed cycle fluid path. The closed cycle fluid path may include a high pressure leg and a low pressure leg. The method may further involve in response to a demand for increased power generation, compressing and dehumidifying environmental air. And the method may involve injecting the compressed and dehumidified environmental air into the low pressure leg.

公开(公告)号：US20190162116A1

公开(公告)日：2019-05-30

申请号：US16260859

申请日：2019-01-29

Applicant: Malta Inc.

Inventor： Raj Apte ,  Philippe Larochelle

IPC: F02C1/04 ,  F02C6/14 ,  F02C1/10 ,  F03G6/04 ,  F03G6/06

Abstract: Disclosed are systems and methods for pump control of a closed thermodynamic cycle system, such as a Brayton cycle. Operational parameters such as working fluid temperature, thermal fluid temperature, stream pressure, and power generation may be the basis for controlling a thermal fluid pump rate.

公开(公告)号：US10233787B2

公开(公告)日：2019-03-19

申请号：US15392657

申请日：2016-12-28

Applicant: Malta Inc.

Inventor： Philippe Larochelle ,  Raj Apte

IPC: F01K13/02 ,  F01K3/02 ,  F22B1/00 ,  F25B9/00 ,  F01K7/16 ,  F01K25/10 ,  F25B13/00 ,  F25B25/00 ,  F25B9/06 ,  F01K3/06 ,  F01K3/12 ,  F01K3/18 ,  F01K7/38 ,  F01K25/06

Abstract: Extra heat in a closed cycle power generation system, such as a reversible closed Brayton cycle system, may be dissipated between discharge and charge cycles. An extra cooling heat exchanger may be added on the discharge cycle and disposed between a cold side heat exchanger and a compressor inlet. Additionally or alternatively, a cold thermal storage medium passing through the cold side heat exchanger may be allowed to heat up to a higher temperature during the discharge cycle than is needed on input to the charge cycle and the excess heat then dissipated to the atmosphere.