DE102004028950A1 - Conversion of thermal energy e.g. piston engine exhaust gases into kinetic energy includes accelerating a gas at temperature and pressure values exceeding those of the ambient air through a jet and mixing with colder ambient air - Google Patents

Conversion of thermal energy e.g. piston engine exhaust gases into kinetic energy includes accelerating a gas at temperature and pressure values exceeding those of the ambient air through a jet and mixing with colder ambient air Download PDF

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Publication number
DE102004028950A1
DE102004028950A1 DE200410028950 DE102004028950A DE102004028950A1 DE 102004028950 A1 DE102004028950 A1 DE 102004028950A1 DE 200410028950 DE200410028950 DE 200410028950 DE 102004028950 A DE102004028950 A DE 102004028950A DE 102004028950 A1 DE102004028950 A1 DE 102004028950A1
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Germany
Prior art keywords
gas
mixing
ambient air
kinetic energy
temperature
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DE200410028950
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German (de)
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Roland Mahler
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Individual
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C1/00—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • F05D2260/601—Fluid transfer using an ejector or a jet pump

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

Abstract

In the process, cold atmospheric air is introduced via an injection tube into the centre of a flow tube containing flowing hot gases from e.g. a piston engine. By mixing in or admixing of the cold atmospheric air with the hot gases, the static air pressure in or after the jet in the flow tube attains the same speed as that of the hot gases, the temperature falls and the mass is raised. The kinetic energy of gases is raised due to the increased mass of the accelerated gas caused by cooling of the gas in the flow tube. The speed of the gas stream is unaffected by the incoming cold air.

Description

Die Wandlung von Energieträgern wie Öl, Kohle, Holz oder Gas in kinetische Energie erfolgt über den Umweg der Wandlung in thermische Energie und unter Nutzung der Gasgesetze. Die erzielbaren kinetischen Wirkungsgrade sind abhängig vom jeweiligen Kreisprozeß und liegen praktisch immer unter 50 % der verfügbaren Energiemenge.The Transformation of energy sources like oil, coal, Wood or gas in kinetic energy takes place via the detour of the transformation in thermal energy and using the gas laws. The achievable Kinetic efficiencies are dependent on the respective cycle and lie practically always less than 50% of the available energy.

Die häufigsten verwendeten technischen Vorrichtungen sind der Kolbenmotor, die Gasturbine und die Dampfturbine.The common used technical devices are the piston engine, the Gas turbine and the steam turbine.

Ihr Nachteil ist neben dem hohen technischen Aufwand besonders ihr schlechter energetischer Wirkungsgrad. Die Ursache liegt in der Unmöglichkeit, den zur Gasausdehnung oder zum Druckaufbau notwendigen Teil an Arbeit vollständig in kinetische Energie zu wandeln.you Disadvantage is in addition to the high technical effort especially her worse energetic efficiency. The cause lies in the impossibility the part of work necessary for gas expansion or pressure build-up Completely to transform into kinetic energy.

Das offene Wandlungsverfahren entspannt das erwärmte Gas oder den Wasserdampf nicht volumenmäßig, sondern durch Massenzuwachs. Dabei wird der Umstand ausgenutzt, daß bei Temperaturerhöhung eines Gases Arbeit gegen den atmosphärischen Luftdruck zu leisten ist, die dann beim Eindringen des Luftdruckes in einen beschleunigten Gasstrom wieder zurückgegeben wird.The open conversion process relaxes the heated gas or water vapor not in volume, but by mass growth. The fact is exploited that when the temperature increases a Gas's work against the atmospheric Air pressure is to be provided, which then when the air pressure is returned to an accelerated gas flow again.

Damit wird der technische Aufwand für thermische Energiewandler deutlich gesenkt. Das betrifft auch die Anforderungen an die Warmfestigkeit von Bauteilen.In order to is the technical effort for thermal energy converter significantly lowered. That also affects the Requirements for the heat resistance of components.

Ausführungsbeispielembodiment

Die von einem Freikolben-Gaserzeuger abgegebenen Gase werden in eine Strahlpumpe geleitet und dort der Druck in Beschleunigung gewandelt. Dabei gelangt Kaltluft des atmosphärischen Luftdruckes durch das Injektionsrohr in die Mitte der Stromröhre und vermischt sich mit dem heißen Gas. Dieses erfährt dadurch eine Abkühlung. Die Geschwindigkeit des Gasstrahles verändert sich durch die eindringende Kaltluft nicht.The Gases released by a free-piston gas generator become one Directed jet pump and there converted the pressure in acceleration. there gets cold air of the atmospheric Air pressure through the injection tube in the middle of the flow tube and mixes with the hot one Gas. This experiences thereby a cooling off. The speed of the gas jet changes due to the penetration Cold air not.

Diese Gas besitzt durch die Beschleunigung und die Masse kinetische Energie, die mit einer Peltonturbine in Drehzahl und Drehmoment gewandelt wird.These Gas has kinetic energy through acceleration and mass, which is converted into speed and torque with a Pelton turbine.

Claims (5)

Technisches Verfahren zur Wandlung von thermischer in kinetische Energie, insbesondere dadurch gekennzeichnet, daß ein Gas mit einer Temperatur und einem Druck, die über der Temperatur und dem Druck der umgebenden atmosphärischen Luft liegen, durch eine Düse oder andere geeignete technische Vorrichtung soweit beschleunigt werden, daß der Druck in Geschwindigkeit umgewandelt wird. Weiterhin dadurch gekennzeichnet, daß der statische Luftdruck in oder nach der Düse oder anderen technischen Vorrichtung in die Stromröhre der beschleunigten Gase gelangt und durch Einmischung oder Vermischung die Temperatur des Gases durch Massenerhöhung des Gases absenkt und damit dessen kinetische Energie erhöht.Technical process for the conversion of thermal into kinetic energy, in particular characterized in that a gas with a temperature and a pressure which are above the temperature and the pressure of the surrounding atmospheric air, are accelerated by a nozzle or other suitable technical device so far that the pressure is converted into speed. Furthermore, characterized in that the static air pressure in or after the nozzle or other technical device enters the flow tube of accelerated gases and lowered by mixing or mixing the temperature of the gas by increasing the mass of the gas and thus increases its kinetic energy. Technisches Verfahren nach Anspruch 1, besonders dadurch gekennzeichnet, daß die Einmischung oder Vermischung von atmosphärischer Luft in das Innere der Stromröhre erfolgt.A technical process according to claim 1, especially characterized in that the Mixing or mixing of atmospheric air into the interior the power tube he follows. Technisches Verfahren nach Anspruch 1 und 2, besonders dadurch gekennzeichnet, daß Einmischung oder Vermischung von atmosphärischer Luft in den Mantel der Stromröhre erfolgt.A technical process according to claims 1 and 2, especially characterized in that interference or mixing of atmospheric Air in the mantle of the power tube he follows. Technisches Verfahren nach Anspruch 1, 2 und 3, besonders dadurch gekennzeichnet, daß ein unter Druck stehendes Gas in die Stromröhre eingemischt wird.A technical process according to claims 1, 2 and 3, especially characterized in that an under Pressurized gas is mixed into the flow tube. Technisches Verfahren nach Anspruch 1, 2, 3, und 4, besonders dadurch gekennzeichnet, daß die kinetische Energie der 5beschleunigten Gasmasse in einer Turbine oder anderen technischen Vorrichtung in eine Drehbewegung mit Drehzahl und Drehmoment gewandelt wird.A technical method according to claim 1, 2, 3, and 4, characterized in that the kinetic energy of the 5 accelerated gas mass in a turbine or other technical Device converted into a rotational movement with speed and torque becomes.
DE200410028950 2004-06-14 2004-06-14 Conversion of thermal energy e.g. piston engine exhaust gases into kinetic energy includes accelerating a gas at temperature and pressure values exceeding those of the ambient air through a jet and mixing with colder ambient air Withdrawn DE102004028950A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200410028950 DE102004028950A1 (en) 2004-06-14 2004-06-14 Conversion of thermal energy e.g. piston engine exhaust gases into kinetic energy includes accelerating a gas at temperature and pressure values exceeding those of the ambient air through a jet and mixing with colder ambient air

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DE200410028950 DE102004028950A1 (en) 2004-06-14 2004-06-14 Conversion of thermal energy e.g. piston engine exhaust gases into kinetic energy includes accelerating a gas at temperature and pressure values exceeding those of the ambient air through a jet and mixing with colder ambient air

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DE102004028950A1 true DE102004028950A1 (en) 2005-12-29

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DE200410028950 Withdrawn DE102004028950A1 (en) 2004-06-14 2004-06-14 Conversion of thermal energy e.g. piston engine exhaust gases into kinetic energy includes accelerating a gas at temperature and pressure values exceeding those of the ambient air through a jet and mixing with colder ambient air

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1030998C2 (en) * 2006-01-25 2007-07-26 Hendrikus Peter Van Der Waal Pneumatically operating drive device.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1030998C2 (en) * 2006-01-25 2007-07-26 Hendrikus Peter Van Der Waal Pneumatically operating drive device.

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