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US20020162330A1 - Power generating system - Google Patents

Power generating system Download PDF

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Publication number
US20020162330A1
US20020162330A1 US09/798,646 US79864601A US2002162330A1 US 20020162330 A1 US20020162330 A1 US 20020162330A1 US 79864601 A US79864601 A US 79864601A US 2002162330 A1 US2002162330 A1 US 2002162330A1
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US
United States
Prior art keywords
heat source
temperature
source
fuel
thermal cycle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US09/798,646
Inventor
Youji Shimizu
Midori Shimizu
Akihiko Shimizu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US09/798,646 priority Critical patent/US20020162330A1/en
Priority to PCT/JP2001/001991 priority patent/WO2002073007A2/en
Publication of US20020162330A1 publication Critical patent/US20020162330A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/06—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/003—Devices for producing mechanical power from solar energy having a Rankine cycle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

Definitions

  • the invention relates to a thermal cycle of power generating system.
  • a current closed thermal cycle used in electric power stations requires both heat source and cooling source.
  • the heat source temperature needs to be much higher than that of the cooling source.
  • electric power stations consume fuel, causing environmental pollution and fuel shortage.
  • the invention aims to solve the above-mentioned problems by using the closed cycle only with heat source; without cooling source.
  • the removal of the heat source temperature restriction enables the hear source temperature to go down to atmospheric temperature. This means that power can be generated from solar thermal energy and fuel is not necessary.
  • FIG. 1 is a typical system diagram of the invention. Each components in the diagram are as follows: 1: heat source ( solar thermal heat source), 2: turbine, 3: gas liquid separator, 4.: pump, 5: compressor, 6: gas liquid mixer, 7: electric generator, 8: rotation axis.
  • 1 heat source ( solar thermal heat source)
  • 2 turbine
  • 3 gas liquid separator
  • 4. pump
  • 5 compressor
  • 6 gas liquid mixer
  • 7 electric generator
  • 8 rotation axis.
  • FIG. 1 shows a typical system diagram of the invention.
  • Compressor 5 and electric generator 7 which are coupled to turbine 2 with rotation axis, are driven by turbine axial power.
  • Liquid is pressurized by pump 4 .
  • Gas is compressed in compressor 5 .
  • Liquid and gas are mixed in gas-liquid mixer 6 .
  • the fluid returns to heat source 1 .
  • a closed cycle of working fluid is formed.
  • saturation temperature of gas species has to be less than atmospheric temperature to produce power from atmospheric temperature heat source.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The invention relates to a thermal cycle of power generating system. A current closed thermal cycle used in electric power stations requires both heat source and cooling source. The heat source temperature needs to be much higher than that of the cooling source. In order to raise the heat source temperature, electric power stations consume fuel, causing environmental pollution and fuel shortage.
The invention aims to solve the above-mentioned problems by using the thermal cycle only with heat source; without cooling source. The removal of the heat source temperature restriction enables the hear source temperature to go down to atmospheric temperature. This means that clean power can be generated from solar thermal energy and fuel is not necessary.

Description

    BACKGROUND OF THE INVENTION
  • The invention relates to a thermal cycle of power generating system. A current closed thermal cycle used in electric power stations requires both heat source and cooling source. The heat source temperature needs to be much higher than that of the cooling source. In order to raise the heat source temperature, electric power stations consume fuel, causing environmental pollution and fuel shortage. [0001]
    • SUMMARY OF THE INVENTION
  • The invention aims to solve the above-mentioned problems by using the closed cycle only with heat source; without cooling source. The removal of the heat source temperature restriction enables the hear source temperature to go down to atmospheric temperature. This means that power can be generated from solar thermal energy and fuel is not necessary.[0002]
    • BRIEF DESCRIPTION OF THE DRAWING
  • FIG. 1 is a typical system diagram of the invention. Each components in the diagram are as follows: 1: heat source ( solar thermal heat source), 2: turbine, 3: gas liquid separator, 4.: pump, 5: compressor, 6: gas liquid mixer, 7: electric generator, 8: rotation axis.[0003]
    • DETAILED DESCRIPTION OF THE DRAWING
  • FIG. 1 shows a typical system diagram of the invention. [0004]
  • Working fluid flows through [0005] heat source 1 into turbine 2. In turbine 2 thermal energy is converted to power, which rotates turbine axis.
  • [0006] Compressor 5 and electric generator 7 which are coupled to turbine 2 with rotation axis, are driven by turbine axial power.
  • At the outlet of [0007] turbine 2 the fluid condenses 10 - 40 wt %, and is separated into gas and liquid in gas-liquid separator 3.
  • Liquid is pressurized by [0008] pump 4. Gas is compressed in compressor 5. Liquid and gas are mixed in gas-liquid mixer 6. The fluid returns to heat source 1. Thus a closed cycle of working fluid is formed.
  • An example of calculation results for the system diagram is as follows. [0009]
    working fluid nitrogen oxide (NO)
    turbine inlet conditions pressure 38 (bar), temperature 180 (K.)
    liquid phase weight percent 0%
    turbine outlet conditions pressure 0.5 (bar), temperature 108 (K.)
    liquid phase weight percent 25%
    electric generator output 7% of turbine axial power
  • At the outlet of [0010] turbine 2 the fluid condenses 25 wt %, and as the gas reduces to 75% of total flow, the power consumption of compressor 5 decreases to less than turbine axial power. Consequently, electric generator output is produced.
  • As for the working fluid, saturation temperature of gas species has to be less than atmospheric temperature to produce power from atmospheric temperature heat source. [0011]
  • Clean power is generated from naturally supplied solar thermal heat source producing no other influence than heat removal in the natural world. [0012]

Claims (1)

What is claimed is
1. A power generating system using the closed cycle only with heat source, without cooling source:
US09/798,646 2001-03-01 2001-03-01 Power generating system Abandoned US20020162330A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US09/798,646 US20020162330A1 (en) 2001-03-01 2001-03-01 Power generating system
PCT/JP2001/001991 WO2002073007A2 (en) 2001-03-01 2001-03-13 Power producing device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/798,646 US20020162330A1 (en) 2001-03-01 2001-03-01 Power generating system
PCT/JP2001/001991 WO2002073007A2 (en) 2001-03-01 2001-03-13 Power producing device

Publications (1)

Publication Number Publication Date
US20020162330A1 true US20020162330A1 (en) 2002-11-07

Family

ID=26345048

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/798,646 Abandoned US20020162330A1 (en) 2001-03-01 2001-03-01 Power generating system

Country Status (2)

Country Link
US (1) US20020162330A1 (en)
WO (1) WO2002073007A2 (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040182082A1 (en) * 2002-12-26 2004-09-23 Saranchuk Theodore Charles Low temperature heat engine
US6964168B1 (en) * 2003-07-09 2005-11-15 Tas Ltd. Advanced heat recovery and energy conversion systems for power generation and pollution emissions reduction, and methods of using same
WO2006028444A1 (en) * 2004-09-02 2006-03-16 Terran Technologies, Inc. Low temperature heat engine
US20070245733A1 (en) * 2005-10-05 2007-10-25 Tas Ltd. Power recovery and energy conversion systems and methods of using same
US20070245731A1 (en) * 2005-10-05 2007-10-25 Tas Ltd. Advanced power recovery and energy conversion systems and methods of using same
US20120103321A1 (en) * 2009-06-30 2012-05-03 Wizard Power Pty Ltd. Vapour only cycling of heat transfer fluid for the thermal storage of solar energy
CN103502582A (en) * 2011-05-02 2014-01-08 哈里公司 Hybrid imbedded combined cycle
US20150000260A1 (en) * 2013-06-26 2015-01-01 Walter F. Burrows Environmentally friendly power generation process
US9038389B2 (en) 2012-06-26 2015-05-26 Harris Corporation Hybrid thermal cycle with independent refrigeration loop
US9297387B2 (en) 2013-04-09 2016-03-29 Harris Corporation System and method of controlling wrapping flow in a fluid working apparatus
US9303533B2 (en) 2013-12-23 2016-04-05 Harris Corporation Mixing assembly and method for combining at least two working fluids
US9303514B2 (en) 2013-04-09 2016-04-05 Harris Corporation System and method of utilizing a housing to control wrapping flow in a fluid working apparatus
US20170002691A1 (en) * 2013-12-20 2017-01-05 Josef MÄCHLER Thermal power plant with heat recovery
US20170016650A1 (en) * 2011-12-28 2017-01-19 Joseph Sydney Coventry Vapour only cycling of heat transfer fluid for the thermal storage of solar energy
US9574563B2 (en) 2013-04-09 2017-02-21 Harris Corporation System and method of wrapping flow in a fluid working apparatus
US9752462B1 (en) 2016-03-03 2017-09-05 Rolls-Royce Plc Supercritical fluid heat engine
WO2019168404A1 (en) * 2018-02-28 2019-09-06 Entromission As Perpetuum mobile of the second kind

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7010920B2 (en) 2002-12-26 2006-03-14 Terran Technologies, Inc. Low temperature heat engine
US20040182082A1 (en) * 2002-12-26 2004-09-23 Saranchuk Theodore Charles Low temperature heat engine
US6964168B1 (en) * 2003-07-09 2005-11-15 Tas Ltd. Advanced heat recovery and energy conversion systems for power generation and pollution emissions reduction, and methods of using same
WO2006028444A1 (en) * 2004-09-02 2006-03-16 Terran Technologies, Inc. Low temperature heat engine
US20070245733A1 (en) * 2005-10-05 2007-10-25 Tas Ltd. Power recovery and energy conversion systems and methods of using same
US20070245731A1 (en) * 2005-10-05 2007-10-25 Tas Ltd. Advanced power recovery and energy conversion systems and methods of using same
US7287381B1 (en) 2005-10-05 2007-10-30 Modular Energy Solutions, Ltd. Power recovery and energy conversion systems and methods of using same
US7827791B2 (en) 2005-10-05 2010-11-09 Tas, Ltd. Advanced power recovery and energy conversion systems and methods of using same
US9347713B2 (en) * 2009-06-30 2016-05-24 Sunrise Csp Pty Limited Vapour only cycling of heat transfer fluid for the thermal storage of solar energy
US20120103321A1 (en) * 2009-06-30 2012-05-03 Wizard Power Pty Ltd. Vapour only cycling of heat transfer fluid for the thermal storage of solar energy
CN103502582A (en) * 2011-05-02 2014-01-08 哈里公司 Hybrid imbedded combined cycle
US8991181B2 (en) 2011-05-02 2015-03-31 Harris Corporation Hybrid imbedded combined cycle
US20170016650A1 (en) * 2011-12-28 2017-01-19 Joseph Sydney Coventry Vapour only cycling of heat transfer fluid for the thermal storage of solar energy
US10393094B2 (en) * 2011-12-28 2019-08-27 Sunrise Csp Pty Limited Vapour only cycling of heat transfer fluid for the thermal storage of solar energy
US9038389B2 (en) 2012-06-26 2015-05-26 Harris Corporation Hybrid thermal cycle with independent refrigeration loop
US9574563B2 (en) 2013-04-09 2017-02-21 Harris Corporation System and method of wrapping flow in a fluid working apparatus
US9303514B2 (en) 2013-04-09 2016-04-05 Harris Corporation System and method of utilizing a housing to control wrapping flow in a fluid working apparatus
US9297387B2 (en) 2013-04-09 2016-03-29 Harris Corporation System and method of controlling wrapping flow in a fluid working apparatus
US20150000260A1 (en) * 2013-06-26 2015-01-01 Walter F. Burrows Environmentally friendly power generation process
US20170002691A1 (en) * 2013-12-20 2017-01-05 Josef MÄCHLER Thermal power plant with heat recovery
US10125637B2 (en) * 2013-12-20 2018-11-13 Josef MÄCHLER Thermal power plant with heat recovery
US9303533B2 (en) 2013-12-23 2016-04-05 Harris Corporation Mixing assembly and method for combining at least two working fluids
US9752462B1 (en) 2016-03-03 2017-09-05 Rolls-Royce Plc Supercritical fluid heat engine
GB2547927A (en) * 2016-03-03 2017-09-06 Rolls Royce Plc Supercritical fluid heat engine
GB2547927B (en) * 2016-03-03 2018-05-23 Rolls Royce Plc Supercritical fluid heat engine
WO2019168404A1 (en) * 2018-02-28 2019-09-06 Entromission As Perpetuum mobile of the second kind

Also Published As

Publication number Publication date
WO2002073007A2 (en) 2002-09-19

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