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    Multiple organic rankine cycle systems and methods
    31.
    发明授权
    Multiple organic rankine cycle systems and methods 有权

    公开(公告)号：US09896974B2

    公开(公告)日：2018-02-20

    申请号：US14816046

    申请日：2015-08-02

    Applicant: ElectraTherm, Inc.

    Inventor： Hank Leibowitz ,  Hans Wain ,  David Williams

    IPC: F01K25/08 ,  F01K23/06 ,  F01K23/00 ,  F01K13/00

    CPC classification number: F01K25/08 ,  F01K7/16 ,  F01K7/18 ,  F01K7/20 ,  F01K13/006 ,  F01K23/00 ,  F01K23/065

    Abstract: Systems and methods are provided for the recovery mechanical power from heat energy sources using a common working fluid comprising, in some embodiments, an organic refrigerant flowing through multiple heat exchangers and expanders. The distribution of heat energy from the source may be portioned, distributed, and communicated to each of the heat exchangers so as to permit utilization of up to all available heat energy. In some embodiments, the system utilizes up to and including all of the available heat energy from the source. The expanders may be operatively coupled to one or more generators that convert the mechanical energy of the expansion process into electrical energy, or the mechanical energy may be communicated to other devices to perform work.

    Systems and Methods for Improving Power Plant Efficiency
    32.
    发明申请
    Systems and Methods for Improving Power Plant Efficiency 审中-公开

    公开(公告)号：US20170306807A1

    公开(公告)日：2017-10-26

    申请号：US15489048

    申请日：2017-04-17

    Applicant: American Exchanger Services, Inc.

    Inventor： Thomas J. Muldoon

    IPC: F01K25/10 ,  F01K23/00 ,  F01K9/00

    CPC classification number: F01K25/106 ,  F01K9/003 ,  F01K23/00 ,  F01K23/04

    Abstract: Systems and methods for improving the efficiency of a power plant exploit the temperature differential of the cooling water that may exist seasonally in some geographic locations. Specifically, new systems and ways of retrofitting existing systems to utilize the additional temperature differential of a power plant's coolant during colder months are provided in order to increase the efficiency of the plant. A second working fluid loop converts a portion of the condenser of the first working fluid loop into the boiler for the second working fluid loop in which the first and second working fluids in these respective loops are different. Thus, the energy output of the plant may be increased by the addition of a selectively operated secondary loop without an increase in fuel consumption.

    HYBRID POWER GENERATION SYSTEM AND METHOD USING SUPERCRITICAL CO2 CYCLE
    35.
    发明申请
    HYBRID POWER GENERATION SYSTEM AND METHOD USING SUPERCRITICAL CO2 CYCLE 有权
    混合发电系统和使用超临界CO2循环的方法

    公开(公告)号：US20160010513A1

    公开(公告)日：2016-01-14

    申请号：US14797991

    申请日：2015-07-13

    Applicant: DOOSAN HEAVY INDUSTRIES CONSTRUCTION CO., LTD.

    Inventor： Sung Gju KANG ,  Young Oon KIM ,  Hyung Keun CHI ,  Jeong Ho HWANG

    IPC: F01K25/10 ,  F01K13/00 ,  F01K23/00 ,  F01K11/02

    CPC classification number: F01K25/10 ,  F01K7/22 ,  F01K7/32 ,  F01K7/40 ,  F01K11/02 ,  F01K13/006 ,  F01K23/00 ,  F01K25/103

    Abstract: A hybrid power generation system using a supercritical CO2 cycle includes a steam power generation unit including a plurality of turbines driven with steam heated using heat generated by a boiler to produce electric power, and a supercritical CO2 power generation unit including an S—CO2 heater for heating a supercritical CO2 fluid, a turbine driven by the supercritical CO2 fluid, a precooler for lowering a temperature of the supercritical CO2 fluid passing through the turbine, and a main compressor for pressurizing the supercritical CO2 fluid, so as to produce electric power. The steam power generation unit and the supercritical CO2 power generation unit share the boiler. The hybrid power generation system may improve both the power generation efficiencies of the steam cycle and the supercritical CO2 cycle by interconnecting the steam cycle and the supercritical CO2 cycle.

    Abstract translation: 使用超临界CO 2循环的混合动力发电系统包括：蒸汽发电单元，其包括利用由锅炉产生的热量加热的蒸汽驱动的多个涡轮机以产生电力;以及超临界CO 2发电单元，其包括用于 加热超临界CO2流体，由超临界CO 2流体驱动的涡轮机，用于降低通过涡轮机的超临界CO 2流体的温度的预冷器，以及用于对超临界CO 2流体进行加压的主压缩机，以产生电力。 蒸汽发电单元和超临界CO2发电单元共享锅炉。 混合发电系统可以通过将蒸汽循环和超临界CO 2循环相互连接来提高蒸汽循环和超临界CO 2循环的发电效率。

    Sliding vane rotary expander for waste heat recovery system
    36.
    发明授权
    Sliding vane rotary expander for waste heat recovery system 有权
    用于废热回收系统的滑动叶片旋转式膨胀机

    公开(公告)号：US08839620B2

    公开(公告)日：2014-09-23

    申请号：US13143562

    申请日：2010-01-12

    Applicant: Ho Teng ,  Gerhard Regner

    Inventor： Ho Teng ,  Gerhard Regner

    IPC: F01K23/10 ,  F01K23/00 ,  F01K23/06 ,  F01C20/18 ,  F01C21/18 ,  F01C1/00 ,  F01C1/344

    CPC classification number: F01K23/10 ,  F01C1/3446 ,  F01K23/065

    Abstract: A sliding vane rotary expander is used in a waste heat recovery system for a power plant. One example rotary expander has multiple stages with the vane assemblies disposed in bearing supported rings. Another example rotary expander has multiple stages with the vane assemblies disposed in an elliptical cavity. A balance valve equalizes the flow within the stages. Single stage rotary expanders may also be used.

    Abstract translation: 用于发电厂的废热回收系统中使用滑动叶片旋转式膨胀机。 一个示例性旋转膨胀机具有多个阶段，其中叶片组件设置在轴承支撑环中。 另一个例子是旋转式膨胀机具有多个阶段，其中叶片组件设置在椭圆形腔中。 平衡阀平衡了两级之间的流量。 也可以使用单级旋转膨胀机。

    HEAT ENGINE
    37.
    发明申请
    HEAT ENGINE 审中-公开
    热发动机

    公开(公告)号：US20140174085A1

    公开(公告)日：2014-06-26

    申请号：US13724412

    申请日：2012-12-21

    Applicant: JORDIN T. KARE ,  NATHAN P. MYHRVOLD ,  ROBERT C. PETROSKI ,  LOWELL L. WOOD, JR.

    Inventor： JORDIN T. KARE ,  NATHAN P. MYHRVOLD ,  ROBERT C. PETROSKI ,  LOWELL L. WOOD, JR.

    IPC: F01K13/00 ,  F01K23/00

    CPC classification number: F01K13/00 ,  F01K11/00 ,  F01K25/08 ,  F01K25/12

    Abstract: An improved heat engine is disclosed. The heat engine comprises at least one heat pipe containing a working fluid flowing in a thermal cycle between vapor phase at an evaporator end and liquid phase at a condenser end. Heat pipe configurations for high-efficiency/high-performance heat engines are disclosed. The heat pipe may have an improved capillary structure configuration with characteristic pore sizes between 1μ and 1 nm (e.g. formed through nano- or micro-fabrication techniques) and a continuous or stepwise gradient in pore size along the capillary flow direction. The heat engine may have an improved generator assembly configuration that comprises an expander (e.g. rotary/turbine or reciprocating piston machine) and generator along with magnetic bearings, magnetic couplings and/or magnetic gearing. The expander-generator may be wholly or partially sealed within the heat pipe. A heat engine system (e.g. individual heat engine or array of heat engines in series and/or in parallel) for conversion of thermal energy to useful work (including heat engines operating from a common heat source) is also disclosed. The system can be installed in a vehicle or facility to generate electricity.

    Abstract translation: 公开了一种改进的热机。 热机包括至少一个热管，其包含在蒸发器端的气相之间的热循环中流动的工作流体和在冷凝器端处的液相。 公开了用于高效/高性能热机的热管配置。 热管可以具有改进的毛细结构构型，其具有1μ和1nm之间的特征孔径（例如通过纳米或微制造技术形成）以及沿着毛细管流动方向的孔径的连续或逐步梯度。 热机可以具有改进的发电机组件配置，其包括膨胀机（例如旋转/涡轮或往复活塞机）和发电机以及磁性轴承，磁耦合和/或磁齿轮传动。 膨胀机发电机可以全部或部分地密封在热管内。 还公开了一种用于将热能转换成有用工作（包括从公用热源运行的热力发动机）的热力发动机系统（例如串联和/或并联的热力发动机或热力发动机阵列）。 该系统可以安装在车辆或设施中以发电。

    HEAT ENGINE WITH EXTERNAL HEAT SOURCE AND ASSOCIATED POWER GENERATION UNIT AND VEHICLE
    40.
    发明申请
    HEAT ENGINE WITH EXTERNAL HEAT SOURCE AND ASSOCIATED POWER GENERATION UNIT AND VEHICLE 有权
    具有外部热源和相关发电机组和车辆的发动机

    公开(公告)号：US20130186090A1

    公开(公告)日：2013-07-25

    申请号：US13519753

    申请日：2010-12-22

    Applicant: Frédéric Oliver Thevenod

    Inventor： Frédéric Oliver Thevenod

    IPC: F01K23/00

    CPC classification number: F01K23/00 ,  F02G1/04 ,  F02G5/02 ,  Y02T10/166

    Abstract: A heat engine includes structure for compressing a cooled working gas, heating the compressed working gas using an external heat source, expanding the heated compressed working gas, cooling the working gas using a heat exchanger with a cold source, and subsequently, returning the cooled working gas into the compression structure.

    Abstract translation: 热机包括用于压缩冷却的工作气体的结构，使用外部热源加热压缩的工作气体，使加热的压缩工作气体膨胀，使用具有冷源的热交换器冷却工作气体，随后使冷却的工作 气体进入压缩结构。

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