US20040237525A1 - Assembly of gas expansion elements and method of operating said assembly - Google Patents

Assembly of gas expansion elements and method of operating said assembly Download PDF

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Publication number
US20040237525A1
US20040237525A1 US10/482,973 US48297304A US2004237525A1 US 20040237525 A1 US20040237525 A1 US 20040237525A1 US 48297304 A US48297304 A US 48297304A US 2004237525 A1 US2004237525 A1 US 2004237525A1
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United States
Prior art keywords
pressure
containers
gas
bypass pipe
gas mixture
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Abandoned
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US10/482,973
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English (en)
Inventor
Gerhard Stock
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Individual
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Individual
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Publication of US20040237525A1 publication Critical patent/US20040237525A1/en
Abandoned legal-status Critical Current

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    • 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
    • F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • 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
    • F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • F01K27/005—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for by means of hydraulic motors
    • 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
    • F01K21/00—Steam engine plants not otherwise provided for
    • F01K21/005—Steam engine plants not otherwise provided for using mixtures of liquid and steam or evaporation of a liquid by expansion

Definitions

  • the invention generally relates to engines and more particularly relates to an arrangement of gas expansion elements for a device for converting thermal energy into motive energy.
  • DE 197 19 190 C2 discloses an arrangement for converting thermal energy into electrical energy, which consists of a working circuit with a working fluid for driving a fluid flow engine and of a plurality of heat exchangers that carry alternating flows of cold and hot medium.
  • a working circuit with a working fluid for driving a fluid flow engine and of a plurality of heat exchangers that carry alternating flows of cold and hot medium.
  • an expansion element which expands and contracts as a function of the temperature of the medium.
  • the temperature-dependent expansions and contractions of this expansion element are fed over an intermediate storage device to the working circuit.
  • an intermediate storage device formed as a spring is allocated to each heat exchanger, wherein each spring is connected to the piston of a pressure cylinder, whose working space is connected by means of controllable valves by way of suction and pressure lines to a working oil circuit, which drives a turbine with a generator.
  • This arrangement features a relatively complex setup, particularly due to the intermediate storage devices formed as springs, and includes the previously mentioned disadvantages of a heat exchanger.
  • WO 00/53898 discloses a gas expansion element for an arrangement for converting thermal energy into motive energy, particularly for a hot-water motor, consisting of a closed pressure container filled with a gas or gas mixture, which is operatively connected over an displacement piston to the arrangement.
  • the pressure container has an upper inlet opening for hot and cold water and a lower water discharge opening.
  • a hot-water motor includes complementary pairs of pressure containers with associated fluid piston pumps, which act on a working circuit of a water turbine.
  • a hot, expanding gas or gas mixture is present in the first pressure container and the second pressure container contains a cold, contracting gas or gas mixture.
  • the gas or gas mixture of the first pressure container is cooled through injection of cold water and the gas or gas mixture of the second pressure container is heated by injecting hot water.
  • the gas volumes change correspondingly.
  • the entire gas mixture still containing hot water in the first pressure container is flushed with cold water until the temperature in this pressure container drops to a discharge level. In this way, the thermal energy that is still present is lost.
  • the object of the invention is to create an arrangement of gas expansion elements of the initially mentioned type, as well as a method for operating the arrangement, with which a relatively high efficiency can be achieved with low technical expense.
  • bypass pipe with at least one controllable valve for pressure equalization between the pressure containers after the performance of the work of the gas or gas mixture.
  • the valve is opened after the performance of the work of the gas mixture through corresponding expansion or contraction and the associated driving of an displacement piston of the hot-water motor, wherein the piston is formed as a fluid piston pump.
  • the bypass pipe is arranged in the upper region of the pressure container.
  • this region of the pressure container in which a flange or a cover is located, there is neither hot or cold water, therefore the gas mixture can be led undisturbed through the opened valve into the bypass pipe.
  • the gas mixture with the highest temperature is located approximately in this region.
  • a controllable valve is arranged in the region in the bypass pipe directly adjacent to the associated pressure container.
  • the present invention also includes a method for operating an arrangement for which hot and cold water is alternately injected into the pressure container, such that after the transfer of the work of the gas or gas mixture of one of the pressure containers, the gas or gas mixture is led through openings of the controllable valve by way of the bypass pipe into the other pressure container.
  • the valve in the bypass pipe is opened for pressure equalization between the two pressure containers.
  • an equalization temperature is set between the two pressure containers.
  • one portion of the gas or gas mixture is led into the other pressure container after the transfer of the usable expansion work of the gas or gas mixture of a pressure container. Because an economically significant work phase of the gas mixture does not correspond to the entire expansion period of the gas mixture, the work phase, thus the usable expansion work of the gas mixture, is completed by the opening of the valve and its residual energy is used for increasing the pressure and for heating the gas mixture of the other pressure container.
  • two controllable valves of the bypass pipe are opened and closed approximately simultaneously.
  • the pressure equalization which produces a heat flow from one pressure container to the other, is selectively controlled and the clearance volume in the bypass pipe is minimized.
  • FIG. 1 a schematic representation of an arrangement according to the invention
  • FIG. 2 a diagram for representing a cycle process of the arrangement
  • FIG. 3 a pressure-time diagram for representing the cycle process of the arrangement.
  • the arrangement includes a storage container 1 for water with a level indicator 2 .
  • the container is connected by way of pipes 3 to a cooling device 4 and a heating device 5 .
  • a corresponding pipe 6 leads to a regulated opening 7 , 8 of a pressure container 9 , 10 .
  • the closed pressure containers 9 , 10 are filled with a gas mixture.
  • each pressure container 9 , 10 there is an outlet opening 14 , 15 , which is coupled to a working circuit 16 , which includes two fluid piston pumps 17 , 18 of a hot-water motor and a turbine 19 with a generator. Furthermore, a pump 21 is inserted in the working circuit 16 connected to the storage container 1 by way of a line 20 .
  • hot water is prepared in the heating device 5 , which is led over the first inlet opening 7 into the first pressure container 9 .
  • the gas mixture expands and performs work over an displacement piston 22 of the first fluid piston pump 17 .
  • This work is supplied by means of the working circuit 16 to the turbine 19 for converting thermal energy.
  • the water is discharged through the associated discharge opening 14 .
  • cold water is prepared, which is led by way of the second inlet opening 8 into the second pressure container 10 .
  • the gas mixture contracts and likewise performs work over the displacement piston 22 of the second fluid piston pump 18 .
  • the two valves 12 , 13 of the bypass pipe 11 are opened and a temperature equalization up to an equalization temperature between the first pressure container 9 and the second pressure container 10 occurs due to the pressure equalization.
  • hot water is injected into the second pressure container 10 and cold water is injected into the first pressure container 9 . Because the gas mixture of both pressure containers 9 , 10 is at the equalization temperature, unnecessary heating or cooling of the corresponding gas mixture is not required, whereby the arrangement has a relatively high efficiency.
  • the pressure-time (p-t) diagram according to FIG. 3 shows at the beginning a conventional profile of the process, for which the pressure p′ max of the first pressure container 8 falls to the pressure p′ min , wherein at time t e cold water is injected and the gas mixture performs work in the time period ⁇ t a .
  • the pressure of the second pressure container 10 increases from the pressure p′ min to the pressure p′ max , wherein at time t e hot water is injected into the second pressure container 10 and the gas mixture likewise performs work in the time period ⁇ t a for driving the fluid piston pump 14 .
  • the time period ⁇ t 1 no work is performed and the residual pressure in the pressure containers 9 , 10 is lost for the system.
US10/482,973 2001-07-07 2002-07-03 Assembly of gas expansion elements and method of operating said assembly Abandoned US20040237525A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10133153.3 2001-07-07
DE10133153A DE10133153C1 (de) 2001-07-07 2001-07-07 Anordnung von Gasausdehnungselementen und Verfahren zum Betreiben der Anordnung
PCT/DE2002/002416 WO2003004835A1 (de) 2001-07-07 2002-07-03 Anordnung von gasausdehnungselementen und verfahren zum betreiben der anordnung

Publications (1)

Publication Number Publication Date
US20040237525A1 true US20040237525A1 (en) 2004-12-02

Family

ID=7691075

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/482,973 Abandoned US20040237525A1 (en) 2001-07-07 2002-07-03 Assembly of gas expansion elements and method of operating said assembly

Country Status (11)

Country Link
US (1) US20040237525A1 (ko)
EP (1) EP1404948B1 (ko)
JP (1) JP2004532953A (ko)
KR (1) KR20040018424A (ko)
AT (1) ATE422602T1 (ko)
BR (1) BR0211238A (ko)
CA (1) CA2453017A1 (ko)
DE (2) DE10133153C1 (ko)
MX (1) MXPA04000011A (ko)
NO (1) NO20040036L (ko)
WO (1) WO2003004835A1 (ko)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060059912A1 (en) * 2004-09-17 2006-03-23 Pat Romanelli Vapor pump power system
WO2014046600A1 (en) * 2012-09-20 2014-03-27 Wachtmeister, Isa Process and plant for production of electricity by combustion
WO2014099184A1 (en) 2012-12-20 2014-06-26 Hoose Howard G Jr Power generation system and method of use thereof
WO2014129909A1 (en) * 2013-02-19 2014-08-28 Viking Heat Engines As Device and method for operational and safety control of a heat engine
US10487698B2 (en) 2014-11-19 2019-11-26 Songwei GUO Supercritical fluid power system and control method therefor
CN113865909A (zh) * 2021-10-11 2021-12-31 江苏国富氢能技术装备股份有限公司 一种制冷膨胀机性能测试装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004003694A1 (de) * 2004-01-24 2005-11-24 Gerhard Stock Anordnung zum Umwandeln von thermischer in motorische Energie

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100965A (en) * 1959-09-29 1963-08-20 Charles M Blackburn Hydraulic power supply
US3803847A (en) * 1972-03-10 1974-04-16 Alister R Mc Energy conversion system
US3901033A (en) * 1972-02-28 1975-08-26 Roy E Mcalister Vapor pressurized hydrostatic drive
US4063417A (en) * 1976-02-04 1977-12-20 Carrier Corporation Power generating system employing geothermally heated fluid
US4283915A (en) * 1976-04-14 1981-08-18 David P. McConnell Hydraulic fluid generator
US6192683B1 (en) * 1997-05-08 2001-02-27 Gerhard Stock Device for converting thermal energy into electrical energy

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9522231D0 (en) * 1995-10-31 1996-01-03 Dantec Services Ltd Method and apparatus for driving a rotor
DE19909611C1 (de) * 1999-03-05 2000-04-06 Gerhard Stock Gasausdehnungselement für eine Anordnung zum Umwandeln von thermischer in motorische Energie, insbesondere für einen Warmwassermotor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100965A (en) * 1959-09-29 1963-08-20 Charles M Blackburn Hydraulic power supply
US3901033A (en) * 1972-02-28 1975-08-26 Roy E Mcalister Vapor pressurized hydrostatic drive
US3803847A (en) * 1972-03-10 1974-04-16 Alister R Mc Energy conversion system
US4063417A (en) * 1976-02-04 1977-12-20 Carrier Corporation Power generating system employing geothermally heated fluid
US4283915A (en) * 1976-04-14 1981-08-18 David P. McConnell Hydraulic fluid generator
US6192683B1 (en) * 1997-05-08 2001-02-27 Gerhard Stock Device for converting thermal energy into electrical energy

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060059912A1 (en) * 2004-09-17 2006-03-23 Pat Romanelli Vapor pump power system
WO2014046600A1 (en) * 2012-09-20 2014-03-27 Wachtmeister, Isa Process and plant for production of electricity by combustion
WO2014099184A1 (en) 2012-12-20 2014-06-26 Hoose Howard G Jr Power generation system and method of use thereof
US20140175798A1 (en) * 2012-12-20 2014-06-26 Howard G. Hoose, JR. Power generation system and method of use thereof
US9341165B2 (en) * 2012-12-20 2016-05-17 Howard G. Hoose, JR. Power generation system and method of use thereof
EP2948676A4 (en) * 2012-12-20 2016-11-16 Howard G Hoose Jr POWER GENERATION SYSTEM AND METHOD FOR A VEHICLE
WO2014129909A1 (en) * 2013-02-19 2014-08-28 Viking Heat Engines As Device and method for operational and safety control of a heat engine
NO335230B1 (no) * 2013-02-19 2014-10-27 Viking Heat Engines As Anordning og framgangsmåte for drifts- og sikkerhetsregulering ved en varmekraftmaskin
CN105074186A (zh) * 2013-02-19 2015-11-18 维金热引擎有限公司 用于热机的操作和安全控制的装置和方法
US10487698B2 (en) 2014-11-19 2019-11-26 Songwei GUO Supercritical fluid power system and control method therefor
CN113865909A (zh) * 2021-10-11 2021-12-31 江苏国富氢能技术装备股份有限公司 一种制冷膨胀机性能测试装置

Also Published As

Publication number Publication date
CA2453017A1 (en) 2003-01-16
DE10133153C1 (de) 2002-07-11
EP1404948B1 (de) 2009-02-11
KR20040018424A (ko) 2004-03-03
ATE422602T1 (de) 2009-02-15
BR0211238A (pt) 2004-08-10
EP1404948A1 (de) 2004-04-07
JP2004532953A (ja) 2004-10-28
WO2003004835A1 (de) 2003-01-16
NO20040036L (no) 2004-01-08
DE50213273D1 (de) 2009-03-26
MXPA04000011A (es) 2005-06-06

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