DE10205733B4 - Apparatus for achieving isotherm-like compression or expansion of a gas - Google Patents

Apparatus for achieving isotherm-like compression or expansion of a gas Download PDF

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DE10205733B4
DE10205733B4 DE2002105733 DE10205733A DE10205733B4 DE 10205733 B4 DE10205733 B4 DE 10205733B4 DE 2002105733 DE2002105733 DE 2002105733 DE 10205733 A DE10205733 A DE 10205733A DE 10205733 B4 DE10205733 B4 DE 10205733B4
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discs
expansion
compression
gas
achieving
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DE10205733A1 (en
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Rudolf Peschke
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Peschke Rudolf Ing
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Vorrichtung zum Erzielen einer isotherme ähnlichen Kompression oder Expansion eines Gases, dadurch gekennzeichnet, dass dünne kreisrunde Metallscheiben mit guter Wärmeleitfähigkeit die federnd aneinander liegen einen Zylinderraum einer Arbeitsmaschine gleichmäßig verteilt, ausfüllen.contraption to achieve an isothermal similar Compression or expansion of a gas, characterized that thin circular metal discs with good thermal conductivity springing together lie evenly distributed a cylinder space of a working machine, fill out.

Figure 00000001
Figure 00000001

Description

Die Erfindung betrifft eine Vorrichtung zum Erzielen einer Isotherme ähnlichen Kompression oder Expansion eines Gases.The The invention relates to a device for achieving an isotherm similar Compression or expansion of a gas.

Bei der Kompression oder Expansion eines Gases verläuft die Druck-Volumenkurve wenn keine Wärme zu oder abgeführt wird, nach einer Adiabaten.at the compression or expansion of a gas is the pressure-volume curve if no heat to or removed will, after an adiabatic.

In der DE 27 36 472 B1 wird eine Hubkolbenmaschine beschrieben bei der zum besseren Wärmeübergang im Arbeitsraum Vorsprünge mit korrespondierenden Nuten angeordnet sind, um die Oberfläche des Arbeitsraumes zu vergrößern. Die Vorsprünge sind jedoch fest mit dem Kolben bzw. Zylinder verbunden.In the DE 27 36 472 B1 a reciprocating engine is described in which for better heat transfer in the working space projections are arranged with corresponding grooves to increase the surface of the working space. However, the projections are firmly connected to the piston or cylinder.

Aufgabe der Erfindung ist es, eine möglichst isotherme Verdichtung oder Expansion eines Gases ohne großen baulichen Aufwand zu erzielen.task The invention is an isothermal as possible Compaction or expansion of a gas to achieve without much construction effort.

Dies wird durch eine Vorrichtung mit den Merkmalen des Anspruchs 1 erreicht.This is achieved by a device having the features of claim 1.

Vorteilhafte Ausgestaltungen sind in den Unteransprüchen beschrieben. Mit der neuen Vorrichtung verläuft Druck-Volumenkurve nahezu isothermisch.advantageous Embodiments are described in the subclaims. With the new Device runs Pressure-volume curve almost isothermal.

Der Carnotsche Kreisprozess kann jetzt weitgehend durchgeführt werden. Dadurch ist es möglich eine Wärmepumpe zu bauen, welche Wärme aus der Luft holt mit weniger zusätzlicher Energie als bisher.Of the Carnot cycle can now be largely carried out. This makes it possible a heat pump to build what heat from the air picks up with less additional energy than before.

Die neue Vorrichtung besteht erfindungsgemäß aus vielen dünnen kreisrunden Metallscheiben mit guter Wärmeleitfähigkeit und federnden Eigenschaften. Legt man die Scheiben auf den Zylinderboden aufeinander, so liegt abwechselnd eine ebene und eine federnde Scheibe übereinander. Durch diese Federung (siehe 1 u. 2) haben die Scheiben einen gleichmäßigen Abstand voneinander und füllen den Zylinderraum aus. Die dazwischenliegende Luft gibt beim Zusammendrücken des Zylinderraumes die entstandene Wärme an die Scheiben schnell ab, da sie eine bis zu 100 mal größere Oberfläche haben als der Zylindermantel. Durch die viel größere Wärmespeicherfähigkeit der Scheiben gegenüber der Luft erwärmen sich die Scheiben nur wenig und lassen während der Kompression nur eine kleine Differenztemperatur zwischen Scheiben und Luft zu. Die Geschwindigkeit der Kompression bestimmt die Differenztemperatur, welche für den Wärmeübergang zwischen Scheiben und Luft notwendig ist. Die Druck-Volumenkurve wird nahezu isotherm. Dasselbe gilt auch für die entstehende Kälte bei der Expansion wenn die Scheiben im Zylinderraum verteilt sind.The new device according to the invention consists of many thin circular metal discs with good thermal conductivity and resilient properties. Placing the discs on top of each other on the cylinder base, there is alternately a flat and a resilient disc on top of each other. Through this suspension (see 1 u. 2 ), the discs have a uniform distance from each other and fill the cylinder chamber. The intervening air is the compression of the cylinder chamber, the resulting heat to the discs from quickly, as they have up to 100 times greater surface area than the cylinder jacket. Due to the much larger heat storage capacity of the disks relative to the air, the disks heat only slightly and only allow a small difference in temperature between disks and air during compression. The speed of the compression determines the differential temperature, which is necessary for the heat transfer between disks and air. The pressure-volume curve becomes almost isothermal. The same applies to the resulting cold during expansion when the discs are distributed in the cylinder chamber.

Auf den Scheibenpaket liegt ein Deckel mit dem man die Scheiben auf den wärmeleitfähigen Zylinderboden aufdrücken kann. Die fest aufeinanderliegenden Scheiben können ihre Wärme oder Kälte an den Zylinderboden abgeben, der wiederum von Flüssigkeit durchflossen wird mit der die Wärme oder Kälte zu einen Wärmetauscher (Heizkörper) oder Außenluftwärmetauscher fließen kann. Umgekehrt lassen sich die Scheiben im zusammengedrückten Zustand auch vom Zylinderboden erwärmen wenn die Scheiben um einen Differenzbetrag von beispielsweise 5 Grad kälter sind als der Zylinderboden. Dieser ist mit einen Außenluftwärmetauscher mit einer Kühlflüssigkeit verbunden, so daß die Außenluft die Scheiben aufheizt. Das zusammengedrückte Scheibenpaket hat keinen Einfluß auf die Temperaturentwicklung bei der Kompression oder Expansion im Zylinderraum. Die Temperatur verläuft in beiden Fällen adiabatisch.On The disc package is a lid with the discs on the thermally conductive cylinder bottom press on can. The firmly stacked discs can deliver their heat or cold to the cylinder bottom, the turn of liquid flows through with the heat or cold to a heat exchanger (Radiator) or outside air heat exchanger flow can. Conversely, the discs can be in the compressed state also warm from the cylinder bottom if the discs by a difference of, for example, 5 Degree colder are as the cylinder bottom. This is with an outside air heat exchanger with a coolant connected, so that the outside air heats up the panes. The compressed disc package has none Influence on the temperature evolution during compression or expansion in the Cylinder space. The temperature is adiabatic in both cases.

Auch mit nicht federnden ebenen Scheiben und zusätzlichen Druckfedern lassen sich die Abstände der Scheiben zueinander verändern, wobei die Scheiben (siehe 3 u. 4) von den Druckfedern mitgenommen werden.Even with non-resilient flat discs and additional compression springs, the distances between the discs can be changed with each other, the discs (see 3 u. 4 ) are taken from the springs.

Die 3 Mitnehmergabeln an den Scheiben sind am Schraubenfederumfang verteilt, damit sie sich beim Zusammendrücken nicht behindern.The 3 driver forks on the discs are distributed on the coil spring circumference, so that they compress do not hinder.

Claims (5)

Vorrichtung zum Erzielen einer isotherme ähnlichen Kompression oder Expansion eines Gases, dadurch gekennzeichnet, dass dünne kreisrunde Metallscheiben mit guter Wärmeleitfähigkeit die federnd aneinander liegen einen Zylinderraum einer Arbeitsmaschine gleichmäßig verteilt, ausfüllen.Device for achieving an isothermal similar compression or expansion of a gas, characterized in that thin circular metal discs with good thermal conductivity which are resiliently evenly distributed over a cylinder space of a working machine evenly fill. Vorrichtung nach Anspruch 1 dadurch gekennzeichnet, dass sich die federnd gelagerten Scheiben auf den Zylinderboden aufdrücken lassen um die gespeicherte Wärme oder Kälte der Scheiben an einen Wärmetauscher wegzuleiten.Device according to claim 1, characterized that the spring-mounted discs on the cylinder bottom press on let go of the stored heat or cold the discs to a heat exchanger divert. Vorrichtung nach Anspruch 1 oder 2 dadurch gekennzeichnet, dass jede zweite Scheibe so gebogen ist, dass sie in axialer Richtung einen veränderbaren Abstand zur daraufliegenden ebenen Scheibe ermöglicht.Device according to claim 1 or 2, characterized that every second disc is bent so that it is in the axial direction a changeable one Distance to the flat plate on top allows. Vorrichtung nach Anspruch 1 oder 2 dadurch gekennzeichnet, dass die Scheiben eben und mit zusätzlichen Druckfedern versehen sind, wobei die Scheiben von den Druckfedern auseinander gehalten oder zusammengezogen werden.Apparatus according to claim 1 or 2, characterized in that the discs flat and with too additional compression springs are provided, wherein the discs are held apart or contracted by the compression springs. Vorrichtung nach Anspruch 4 dadurch gekennzeichnet, dass Führungsgabeln an den Scheiben um den Scheibenfederumfang verteilt sind.Device according to claim 4, characterized that guide forks are distributed on the discs around the Scheibenfederumfang.
DE2002105733 2002-02-12 2002-02-12 Apparatus for achieving isotherm-like compression or expansion of a gas Expired - Fee Related DE10205733B4 (en)

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Cited By (23)

* Cited by examiner, † Cited by third party
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US7900444B1 (en) 2008-04-09 2011-03-08 Sustainx, Inc. Systems and methods for energy storage and recovery using compressed gas
US7958731B2 (en) 2009-01-20 2011-06-14 Sustainx, Inc. Systems and methods for combined thermal and compressed gas energy conversion systems
US7963110B2 (en) 2009-03-12 2011-06-21 Sustainx, Inc. Systems and methods for improving drivetrain efficiency for compressed gas energy storage
US8037678B2 (en) 2009-09-11 2011-10-18 Sustainx, Inc. Energy storage and generation systems and methods using coupled cylinder assemblies
US8046990B2 (en) 2009-06-04 2011-11-01 Sustainx, Inc. Systems and methods for improving drivetrain efficiency for compressed gas energy storage and recovery systems
US8104274B2 (en) 2009-06-04 2012-01-31 Sustainx, Inc. Increased power in compressed-gas energy storage and recovery
US8117842B2 (en) 2009-11-03 2012-02-21 Sustainx, Inc. Systems and methods for compressed-gas energy storage using coupled cylinder assemblies
US8171728B2 (en) 2010-04-08 2012-05-08 Sustainx, Inc. High-efficiency liquid heat exchange in compressed-gas energy storage systems
US8191362B2 (en) 2010-04-08 2012-06-05 Sustainx, Inc. Systems and methods for reducing dead volume in compressed-gas energy storage systems
US8225606B2 (en) 2008-04-09 2012-07-24 Sustainx, Inc. Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression
US8234863B2 (en) 2010-05-14 2012-08-07 Sustainx, Inc. Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange
US8240146B1 (en) 2008-06-09 2012-08-14 Sustainx, Inc. System and method for rapid isothermal gas expansion and compression for energy storage
US8240140B2 (en) 2008-04-09 2012-08-14 Sustainx, Inc. High-efficiency energy-conversion based on fluid expansion and compression
US8250863B2 (en) 2008-04-09 2012-08-28 Sustainx, Inc. Heat exchange with compressed gas in energy-storage systems
US8448433B2 (en) 2008-04-09 2013-05-28 Sustainx, Inc. Systems and methods for energy storage and recovery using gas expansion and compression
US8474255B2 (en) 2008-04-09 2013-07-02 Sustainx, Inc. Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange
US8479505B2 (en) 2008-04-09 2013-07-09 Sustainx, Inc. Systems and methods for reducing dead volume in compressed-gas energy storage systems
US8495872B2 (en) 2010-08-20 2013-07-30 Sustainx, Inc. Energy storage and recovery utilizing low-pressure thermal conditioning for heat exchange with high-pressure gas
US8539763B2 (en) 2011-05-17 2013-09-24 Sustainx, Inc. Systems and methods for efficient two-phase heat transfer in compressed-air energy storage systems
US8578708B2 (en) 2010-11-30 2013-11-12 Sustainx, Inc. Fluid-flow control in energy storage and recovery systems
US8667792B2 (en) 2011-10-14 2014-03-11 Sustainx, Inc. Dead-volume management in compressed-gas energy storage and recovery systems
US8677744B2 (en) 2008-04-09 2014-03-25 SustaioX, Inc. Fluid circulation in energy storage and recovery systems
US8733095B2 (en) 2008-04-09 2014-05-27 Sustainx, Inc. Systems and methods for efficient pumping of high-pressure fluids for energy

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2736472B2 (en) * 1977-08-12 1980-01-31 Arnulf Dipl.-Ing. Keller Reciprocating piston machine, in particular hot gas machine or compressor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2736472B2 (en) * 1977-08-12 1980-01-31 Arnulf Dipl.-Ing. Keller Reciprocating piston machine, in particular hot gas machine or compressor

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US8627658B2 (en) 2008-04-09 2014-01-14 Sustainx, Inc. Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression
US8474255B2 (en) 2008-04-09 2013-07-02 Sustainx, Inc. Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange
US8240140B2 (en) 2008-04-09 2012-08-14 Sustainx, Inc. High-efficiency energy-conversion based on fluid expansion and compression
US8763390B2 (en) 2008-04-09 2014-07-01 Sustainx, Inc. Heat exchange with compressed gas in energy-storage systems
US8677744B2 (en) 2008-04-09 2014-03-25 SustaioX, Inc. Fluid circulation in energy storage and recovery systems
US8713929B2 (en) 2008-04-09 2014-05-06 Sustainx, Inc. Systems and methods for energy storage and recovery using compressed gas
US8479505B2 (en) 2008-04-09 2013-07-09 Sustainx, Inc. Systems and methods for reducing dead volume in compressed-gas energy storage systems
US8733094B2 (en) 2008-04-09 2014-05-27 Sustainx, Inc. Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression
US8448433B2 (en) 2008-04-09 2013-05-28 Sustainx, Inc. Systems and methods for energy storage and recovery using gas expansion and compression
US8250863B2 (en) 2008-04-09 2012-08-28 Sustainx, Inc. Heat exchange with compressed gas in energy-storage systems
US8733095B2 (en) 2008-04-09 2014-05-27 Sustainx, Inc. Systems and methods for efficient pumping of high-pressure fluids for energy
US8209974B2 (en) 2008-04-09 2012-07-03 Sustainx, Inc. Systems and methods for energy storage and recovery using compressed gas
US8225606B2 (en) 2008-04-09 2012-07-24 Sustainx, Inc. Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression
US7900444B1 (en) 2008-04-09 2011-03-08 Sustainx, Inc. Systems and methods for energy storage and recovery using compressed gas
US8240146B1 (en) 2008-06-09 2012-08-14 Sustainx, Inc. System and method for rapid isothermal gas expansion and compression for energy storage
US8234862B2 (en) 2009-01-20 2012-08-07 Sustainx, Inc. Systems and methods for combined thermal and compressed gas energy conversion systems
US7958731B2 (en) 2009-01-20 2011-06-14 Sustainx, Inc. Systems and methods for combined thermal and compressed gas energy conversion systems
US8122718B2 (en) 2009-01-20 2012-02-28 Sustainx, Inc. Systems and methods for combined thermal and compressed gas energy conversion systems
US7963110B2 (en) 2009-03-12 2011-06-21 Sustainx, Inc. Systems and methods for improving drivetrain efficiency for compressed gas energy storage
US8479502B2 (en) 2009-06-04 2013-07-09 Sustainx, Inc. Increased power in compressed-gas energy storage and recovery
US8104274B2 (en) 2009-06-04 2012-01-31 Sustainx, Inc. Increased power in compressed-gas energy storage and recovery
US8046990B2 (en) 2009-06-04 2011-11-01 Sustainx, Inc. Systems and methods for improving drivetrain efficiency for compressed gas energy storage and recovery systems
US8037678B2 (en) 2009-09-11 2011-10-18 Sustainx, Inc. Energy storage and generation systems and methods using coupled cylinder assemblies
US8468815B2 (en) 2009-09-11 2013-06-25 Sustainx, Inc. Energy storage and generation systems and methods using coupled cylinder assemblies
US8109085B2 (en) 2009-09-11 2012-02-07 Sustainx, Inc. Energy storage and generation systems and methods using coupled cylinder assemblies
US8117842B2 (en) 2009-11-03 2012-02-21 Sustainx, Inc. Systems and methods for compressed-gas energy storage using coupled cylinder assemblies
US8171728B2 (en) 2010-04-08 2012-05-08 Sustainx, Inc. High-efficiency liquid heat exchange in compressed-gas energy storage systems
US8661808B2 (en) 2010-04-08 2014-03-04 Sustainx, Inc. High-efficiency heat exchange in compressed-gas energy storage systems
US8191362B2 (en) 2010-04-08 2012-06-05 Sustainx, Inc. Systems and methods for reducing dead volume in compressed-gas energy storage systems
US8245508B2 (en) 2010-04-08 2012-08-21 Sustainx, Inc. Improving efficiency of liquid heat exchange in compressed-gas energy storage systems
US8234863B2 (en) 2010-05-14 2012-08-07 Sustainx, Inc. Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange
US8495872B2 (en) 2010-08-20 2013-07-30 Sustainx, Inc. Energy storage and recovery utilizing low-pressure thermal conditioning for heat exchange with high-pressure gas
US8578708B2 (en) 2010-11-30 2013-11-12 Sustainx, Inc. Fluid-flow control in energy storage and recovery systems
US8539763B2 (en) 2011-05-17 2013-09-24 Sustainx, Inc. Systems and methods for efficient two-phase heat transfer in compressed-air energy storage systems
US8806866B2 (en) 2011-05-17 2014-08-19 Sustainx, Inc. Systems and methods for efficient two-phase heat transfer in compressed-air energy storage systems
US8667792B2 (en) 2011-10-14 2014-03-11 Sustainx, Inc. Dead-volume management in compressed-gas energy storage and recovery systems

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