公开(公告)号：US10337356B2

公开(公告)日：2019-07-02

申请号：US15123748

申请日：2015-03-03

Applicant: Siemens Aktiengesellschaft

Inventor： Rachid Dhima ,  Kakhi Naskidashvili

IPC: F01K3/00

Abstract: A steam power installation has a steam turbine and a valve-stem leakage steam line. A fitting is arranged in the valve-stem leakage steam line, which fitting is used to conduct the valve-stem leakage steam into a suitable valve-stem leakage steam collector, such as into a condenser.

公开(公告)号：US20190153901A9

公开(公告)日：2019-05-23

申请号：US15440295

申请日：2017-02-23

Applicant: Malta Inc.

Inventor： Robert B. Laughlin ,  Philippe Larochelle ,  Nicholas Cizek

IPC: F01K3/00 ,  F28D20/00

Abstract: The present disclosure provides pumped thermal energy storage systems that can be used to store electrical energy. A pumped thermal energy storage system of the present disclosure can store energy by operating as a heat pump or refrigerator, whereby net work input can be used to transfer heat from the cold side to the hot side. A working fluid of the system is capable of efficient heat exchange with heat storage fluids on a hot side of the system and on a cold side of the system. The system can extract energy by operating as a heat engine transferring heat from the hot side to the cold side, which can result in net work output. Systems of the present disclosure can employ solar heating for improved storage efficiency.

公开(公告)号：US10006311B2

公开(公告)日：2018-06-26

申请号：US15008746

申请日：2016-01-28

Applicant: MODINE MANUFACTURING COMPANY

Inventor： JianMin Yin ,  Eric P. Steinbach

IPC: F01K23/10 ,  F02G3/00 ,  F01K27/00 ,  F01K23/06 ,  F02M25/07 ,  F28D7/00 ,  F28F9/22 ,  F28F3/08 ,  F28F21/00 ,  F01K3/00 ,  F02M26/28 ,  F02M26/32 ,  F02M26/33 ,  F02M26/24 ,  F01K25/10 ,  F01N5/02 ,  F22G5/00 ,  F22G5/20 ,  F28D9/00 ,  F28D21/00 ,  F28F3/02

CPC classification number: F01K3/004 ,  F01K25/10 ,  F01K27/00 ,  F01N5/02 ,  F02M26/24 ,  F02M26/28 ,  F02M26/32 ,  F02M26/33 ,  F22G5/00 ,  F22G5/20 ,  F28D9/0043 ,  F28D9/0093 ,  F28D21/001 ,  F28F3/025 ,  F28F2215/04 ,  Y02T10/121 ,  Y02T10/16 ,  Y02T10/166

Abstract: A method of recovering waste heat includes pressurizing a flow of working fluid and transferring heat from a hot gas stream to the flow of working fluid in at least two successively arranged heat transfer sections. At least some of the working fluid is converted to a superheated vapor by the transfer of heat, and passes through an expander to recover useful work. A portion of the flow of working fluid is directed along a branch after having passed through at least one of the heat transfer sections, and bypasses the expander and at least one of the heat transfer sections before being recombined with the working fluid that has passed through the expander. The total flow rate of working fluid can be adjusted to regulate the temperature of the hot gas stream downstream of the heat transfer sections, and the amount of fluid that bypasses along the branch can be adjusted to regulate the temperature of the superheated vapor.

公开(公告)号：US09915178B2

公开(公告)日：2018-03-13

申请号：US14382378

申请日：2013-03-07

Applicant: Siemens Corporation

Inventor： Yu Sun ,  Amit Chakraborty

IPC: G05B21/00 ,  F01K23/10 ,  F01K13/02 ,  G05B13/02 ,  F24D19/10 ,  F28D20/00 ,  H02J3/38 ,  H02J3/00 ,  F01K3/00

CPC classification number: F01K23/101 ,  F01K3/00 ,  F01K13/02 ,  F24D19/10 ,  F28D20/0039 ,  F28F2200/00 ,  G05B13/021 ,  H02J3/38 ,  H02J2003/007 ,  Y02E20/14 ,  Y02E40/76 ,  Y04S10/545

Abstract: A method of real-time optimization for a Combined Cooling, Heating and Power system, including determining a first operation sequence of a plurality of chillers and at least one thermal energy storage tank in the system over a time period (410) and determining a second operation sequence of the plurality of chillers and at least one thermal energy storage tank in the system over the time period by using the first operation sequence as input to a greedy algorithm (420).

公开(公告)号：US09885524B2

公开(公告)日：2018-02-06

申请号：US15090756

申请日：2016-04-05

Applicant: Rebound Technologies, Inc.

Inventor： Russell Muren

IPC: F28D20/02 ,  F01K11/02 ,  H01M8/04029 ,  F01D15/10 ,  F03G6/00 ,  F24J2/42 ,  F01K25/10 ,  F28D19/00 ,  F01K3/00 ,  H02S40/38

CPC classification number: F28D20/02 ,  F01D15/10 ,  F01K3/00 ,  F01K11/02 ,  F01K25/10 ,  F01K25/106 ,  F03G6/001 ,  F05D2220/31 ,  F24S90/00 ,  F28D19/00 ,  H01M8/04029 ,  H02S40/38 ,  Y02E10/40 ,  Y02E10/46 ,  Y02E60/145

Abstract: Methods, systems, and devices are provided for thermal enhancement. Thermal enhancement may include absorbing heat from one or more devices. In some cases, this may improve the efficiency of the one or more devices. In general, a phase transition may be induced in a storage material. The storage material may be combined with a freeze point suppressant in order to reduce its melt point. The mixture may be used to boost the performance of device, such as an electrical generator, a heat engine, a refrigerator, and/or a freezer. The freeze point suppressant and storage material may be separated. By delaying the periods between each stage by prescribed amounts, the methods, systems, and devices may be able to shift the availability of electricity to the user and/or otherwise boost a device at different times in some cases.

公开(公告)号：US20180016946A1

公开(公告)日：2018-01-18

申请号：US15718687

申请日：2017-09-28

Applicant: Saudi Arabian Oil Company

Inventor： Mahmoud Bahy Mahmoud Noureldin ,  Hani Mohammed Al Saed ,  Ahmad Saleh Bunaiyan

IPC: F01K13/02 ,  C10G53/04 ,  F01K3/18 ,  F01K3/00 ,  F01D17/14 ,  C10G59/00 ,  C10G55/00 ,  C10G57/00 ,  C10G99/00 ,  C10G63/00 ,  C10G61/10 ,  C10G61/00 ,  H02K7/18 ,  F01K27/00

CPC classification number: F01K13/02 ,  C10G53/04 ,  C10G55/00 ,  C10G57/00 ,  C10G59/00 ,  C10G61/00 ,  C10G61/10 ,  C10G63/00 ,  C10G99/00 ,  C10G2300/00 ,  C10G2300/4006 ,  C10G2400/30 ,  F01D17/145 ,  F01K3/00 ,  F01K3/185 ,  F01K27/00 ,  H02K7/1823 ,  Y02P30/10

Abstract: Optimizing power generation from waste heat in large industrial facilities such as petroleum refineries by utilizing a subset of all available hot source streams selected based, in part, on considerations for example, capital cost, ease of operation, economics of scale power generation, a number of ORC machines to be operated, operating conditions of each ORC machine, combinations of them, or other considerations are described. Recognizing that several subsets of hot sources can be identified from among the available hot sources in a large petroleum refinery, subsets of hot sources that are optimized to provide waste heat to one or more ORC machines for power generation are also described. Further, recognizing that the utilization of waste heat from all available hot sources in a mega-site such as a petroleum refinery and aromatics complex is not necessarily or not always the best option, hot source units in petroleum refineries from which waste heat can be consolidated to power the one or more ORC machines are identified.

公开(公告)号：US09803508B2

公开(公告)日：2017-10-31

申请号：US15087606

申请日：2016-03-31

Applicant: Saudi Arabian Oil Company

Inventor： Mahmoud Bahy Mahmoud Noureldin ,  Hani Mohammed Al Saed ,  Ahmad Saleh Bunaiyan

IPC: F01K25/08 ,  F01K23/06 ,  F01K13/00 ,  F01K3/00 ,  F01K27/00 ,  C10G45/72 ,  C10G7/12

CPC classification number: F01K23/06 ,  C10G7/12 ,  C10G45/72 ,  C10G2300/1096 ,  C10G2400/04 ,  F01K3/00 ,  F01K13/00 ,  F01K27/00

Abstract: A power generation system includes two heating fluid circuits coupled to multiple heat sources from multiple sub-units of a petrochemical refining system. The sub-units include an integrated diesel hydro-treating plant and aromatics plant. A first subset and a second subset of the heat sources includes diesel hydro-treating plant heat exchangers coupled to streams in the diesel hydro-treating plant and aromatics plant heat exchangers coupled to streams in the aromatics plant, respectively. A power generation system includes an organic Rankine cycle (ORC) including a working fluid that is thermally coupled to the two heating fluid circuits to heat the working fluid, and an expander to generate electrical power from the heated working fluid. The system includes a control system to activate a set of control valves to selectively thermally couple each heating fluid circuit to at least a portion of the heat sources.

公开(公告)号：US09803506B2

公开(公告)日：2017-10-31

申请号：US15087412

申请日：2016-03-31

Applicant: Saudi Arabian Oil Company

Inventor： Mahmoud Bahy Mahmoud Noureldin ,  Hani Mohammed Al Saed ,  Ahmad Saleh Bunaiyan

IPC: F01K25/08 ,  F01K13/02 ,  C10G69/00 ,  F01D17/14 ,  F01K3/18 ,  H02K7/18 ,  F01K3/00 ,  F01K27/00 ,  C10G47/00

CPC classification number: F01K13/02 ,  C10G47/00 ,  C10G69/00 ,  C10G2300/4006 ,  C10G2400/30 ,  F01D17/145 ,  F01K3/00 ,  F01K3/185 ,  F01K27/00 ,  H02K7/1823

Abstract: A power generation system includes two heating fluid circuits coupled to multiple heat sources from multiple sub-units of a petrochemical refining system. The sub-units include an integrated hydrocracking plant and aromatics plant. A first subset and a second subset of the heat sources includes diesel hydro-treating plant heat exchangers coupled to streams in the diesel hydro-treating plant and aromatics plant heat exchangers coupled to streams in the aromatics plant, respectively. A power generation system includes an organic Rankine cycle (ORC) including a working fluid that is thermally coupled to the two heating fluid circuits to heat the working fluid, and an expander to generate electrical power from the heated working fluid. The system includes a control system to activate a set of control valves to selectively thermally couple each heating fluid circuit to at least a portion of the heat sources.

公开(公告)号：US20170159500A1

公开(公告)日：2017-06-08

申请号：US15440312

申请日：2017-02-23

Applicant: X Development LLC

Inventor： Robert B. Laughlin ,  Philippe Larochelle ,  Nicholas Cizek

IPC: F01K3/00

Abstract: The present disclosure provides pumped thermal energy storage systems that can be used to store electrical energy. A pumped thermal energy storage system of the present disclosure can store energy by operating as a heat pump or refrigerator, whereby net work input can be used to transfer heat from the cold side to the hot side. A working fluid of the system is capable of efficient heat exchange with heat storage fluids on a hot side of the system and on a cold side of the system. The system can extract energy by operating as a heat engine transferring heat from the hot side to the cold side, which can result in net work output. Systems of the present disclosure can employ solar heating for improved storage efficiency.

公开(公告)号：US20170159497A1

公开(公告)日：2017-06-08

申请号：US15440297

申请日：2017-02-23

Applicant: X Development LLC

Inventor： Robert B. Laughlin ,  Philippe Larochelle ,  Nicholas Cizek

IPC: F01K3/00 ,  F28D20/00

Abstract: The present disclosure provides pumped thermal energy storage systems that can be used to store electrical energy. A pumped thermal energy storage system of the present disclosure can store energy by operating as a heat pump or refrigerator, whereby net work input can be used to transfer heat from the cold side to the hot side. A working fluid of the system is capable of efficient heat exchange with heat storage fluids on a hot side of the system and on a cold side of the system. The system can extract energy by operating as a heat engine transferring heat from the hot side to the cold side, which can result in net work output. Systems of the present disclosure can employ solar heating for improved storage efficiency.