公开(公告)号：US10724430B2

公开(公告)日：2020-07-28

申请号：US16611654

申请日：2018-06-01

Applicant: Dresser-Rand Company

Inventor： Jason M. Kerth

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

Abstract: A pumped heat energy storage (PHES) system (100) including a charging circuit and a discharging circuit effective to balance or split a total heat rejection of the PHES system between the charging circuit and the discharging circuit. The charging circuit may include thermal storage vessels (102, 104) to store thermal energy generated from a first compressor (110). A first heat rejection system (128) is fluidly coupled with the thermal storage vessels to remove thermal energy from the charging circuit. The discharging circuit may include a first turbine (146) fluidly coupled with the thermal storage vessels to extract thermal energy stored in the thermal storage vessels and convert the thermal energy to mechanical energy via an expansion of a second working fluid. A second heat rejection system (156) is fluidly coupled with the thermal storage vessels and the first turbine to remove thermal energy from the discharging circuit.

公开(公告)号：US20200182148A1

公开(公告)日：2020-06-11

申请号：US16792684

申请日：2020-02-17

Applicant: Dresser-Rand Company

Inventor： Joseph Williams ,  Jason M. Kerth

IPC: F02C6/16 ,  F02C7/14

Abstract: A hybrid compressed air energy storage system is provided. A heat exchanger 114 extracts thermal energy from a compressed air to generate a cooled compressed air stored in an air storage reservoir 120, e.g., a cavern. A heat exchanger 124 transfers thermal energy stored in a thermal storage device 130 to compressed air conveyed from reservoir 120 to generate a heated compressed air. An expander 140 is solely responsive (no heat is introduced by way of a combustor) to the heated compressed air to produce power and generate an expanded air. Expander 140 being solely responsive to heated compressed air by heat exchanger 124 is effective to reduce a temperature of the expanded air by expander 140, and thus a transfer of thermal energy from an expanded exhaust gas received by a recuperator 146 (used to heat the expanded air by the first expander) is effective for reducing waste of thermal energy in exhaust gas cooled by recuperator 146.

公开(公告)号：US20190162482A1

公开(公告)日：2019-05-30

申请号：US16204223

申请日：2018-11-29

Applicant: Dresser-Rand Company

Inventor： Jason M. Kerth

IPC: F28D20/00

Abstract: A pumped heat energy storage system (11) is provided. A thermodynamic charging assembly (11′) may be configured to compress a working fluid and generate thermal energy. A thermal storage assembly (32) is coupled to charging assembly to store at atmospheric pressure by way of a conveyable bulk solid thermal storage media thermal energy generated by the charging assembly. A thermodynamic discharging assembly (11″) is coupled to the thermal storage assembly to extract thermal energy from the thermal storage assembly and convert extracted thermal energy to electrical energy. A heat exchanger assembly (34) is coupled to the thermal storage assembly. The heat exchanger assembly is arranged to directly thermally couple the conveyable bulk solid thermal storage media that is conveyed to the heat exchanger assembly with a flow of the working fluid that passes through the heat exchanger assembly. Disclosed embodiments can make use of immersed-particle heat exchanger technology and can offer similar roundtrip efficiency and pressure ratio characteristics comparable to those of a recuperated cycle without involving a recuperator and concomitant piping.

公开(公告)号：US09938895B2

公开(公告)日：2018-04-10

申请号：US14078986

申请日：2013-11-13

Applicant: Dresser-Rand Company

Inventor： Jason M. Kerth ,  George M. Lucas ,  Stephen S. Rashid

IPC: F02C1/00 ,  F02C6/16

CPC classification number: F02C6/16 ,  Y02E60/15

Abstract: A method for operating a compressed air energy storage system is provided. The method can include compressing a process gas with a compressor train to produce a compressed process gas and storing the compressed process gas in a compressed gas storage unit. The method can also include extracting the compressed process gas from the compressed gas storage unit to an expansion assembly through a feed line. A valve assembly fluidly coupled to the feed line can be actuated to control a mass flow of the compressed process gas from the compressed gas storage unit to the expansion assembly. The method can further include heating the compressed process gas in a preheater fluidly coupled to the feed line upstream from the expansion assembly, and generating a power output with the expansion assembly.

公开(公告)号：US20160252298A1

公开(公告)日：2016-09-01

申请号：US15149214

申请日：2016-05-09

Applicant: Dresser - Rand Company

Inventor： Dan Ohart ,  Gregory Yonker ,  Jason M. Kerth

IPC: F25J1/00 ,  F25J3/02 ,  F25J1/02

CPC classification number: F25J1/0022 ,  F25J1/0037 ,  F25J1/0045 ,  F25J1/0052 ,  F25J1/0208 ,  F25J1/0227 ,  F25J1/0238 ,  F25J1/0242 ,  F25J1/0284 ,  F25J1/0288 ,  F25J1/0292 ,  F25J3/0209 ,  F25J3/0233 ,  F25J3/0238 ,  F25J2200/02 ,  F25J2200/72 ,  F25J2205/04 ,  F25J2205/50 ,  F25J2205/60 ,  F25J2210/06 ,  F25J2215/04 ,  F25J2220/64 ,  F25J2220/66 ,  F25J2260/20 ,  F25J2270/02 ,  F25J2270/04 ,  F25J2270/08 ,  F25J2270/88 ,  F25J2270/906

Abstract: A method for producing liquefied natural gas (LNG) and separating natural gas liquids (NGLs) from the LNG is provided. The method may include compressing natural gas to compressed natural gas, removing a non-hydrocarbon from the compressed natural gas, and cooling the compressed natural gas to a cooled, compressed natural gas. The method may also include expanding a first portion and a second portion of the cooled, compressed natural gas in a first expansion element and a second expansion element to generate a first refrigeration stream and a second refrigeration stream, respectively. The method may further include separating a third portion of the cooled, compressed natural gas into a methane lean natural gas fraction containing the NGLs and a methane rich natural gas fraction. The methane rich natural gas fraction may be cooled in a liquefaction assembly with the first and second refrigeration streams to thereby produce the LNG.

Abstract translation: 提供了一种从LNG生产液化天然气（LNG）和分离天然气液体（NGL）的方法。 该方法可以包括将天然气压缩成压缩的天然气，从压缩的天然气中除去非烃，并将压缩的天然气冷却成冷却的压缩天然气。 该方法还可以包括在第一膨胀元件和第二膨胀元件中膨胀冷却的压缩天然气的第一部分和第二部分，以分别产生第一制冷流和第二制冷流。 该方法还可以包括将冷却的压缩天然气的第三部分分离成含有NGL的甲烷贫天然气馏分和富含甲烷的天然气馏分。 富含甲烷的天然气馏分可以在具有第一和第二制冷流的液化组件中冷却，从而产生LNG。