DE102011109584A1 - Air-conditioning device for motor car, has heat-driven refrigerating machine whose condensation temperature is high due to process condition such that condensation temperature is sufficient for re-cooling radiator of vehicle - Google Patents

Air-conditioning device for motor car, has heat-driven refrigerating machine whose condensation temperature is high due to process condition such that condensation temperature is sufficient for re-cooling radiator of vehicle Download PDF

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DE102011109584A1
DE102011109584A1 DE102011109584A DE102011109584A DE102011109584A1 DE 102011109584 A1 DE102011109584 A1 DE 102011109584A1 DE 102011109584 A DE102011109584 A DE 102011109584A DE 102011109584 A DE102011109584 A DE 102011109584A DE 102011109584 A1 DE102011109584 A1 DE 102011109584A1
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heat
condensation temperature
vehicle
refrigerating machine
driven
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DE102011109584A
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DE102011109584B4 (en
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Thomas Vauderwange
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VauQuadrat GmbH
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VauQuadrat GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/14—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit
    • B60H1/18—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit the air being heated from the plant exhaust gases
    • B60H1/20—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit the air being heated from the plant exhaust gases using an intermediate heat-transferring medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3201—Cooling devices using absorption or adsorption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

The device has a heat-driven refrigerating machine (10) whose condensation temperature is high due to a process condition such that the condensation temperature is sufficient for re-cooling a radiator (2) of a vehicle. The refrigerating machine is driven by waste heat of a drive unit and not by driving power. Waste heat of the refrigerating machine is fed into a heat exchanger (9) in the radiator. A container with a carrier substance is utilized during cooling process when continuous cooling operation is required. An independent claim is also included for an air-conditioning method for an internal combustion engine-driven vehicle.

Description

Ausgangspunkt ist die allgemein bekannte, in 1 beschriebene Klimaanlage für Kraftfahrzeuge.Starting point is the well-known, in 1 described air conditioning for motor vehicles.

Der Motor (1) treibt einen Kompressor (4) an. Dieser ist das Antriebsorgan eines Kältekreises, dessen zwei Durckniveaus durch das Expansionsorgan (7) als Gegenspieler des Kompressors gehalten werden. Die erzeugte Kälte wird durch den Verdampfer (5) als Wärmetauscher in den Innenraum geleitet. Die Abwärme des Kältekreises wird in den Kühler (2) des Fahrzeugs geleitet, aus dem die Abwärme durch die Konvektion des Fahrtwindes und den Lüfter abgeführt wird.The motor ( 1 ) drives a compressor ( 4 ) at. This is the driving force of a refrigeration circuit whose two pressure levels are controlled by the expander ( 7 ) are held as opponents of the compressor. The cold generated by the evaporator ( 5 ) passed as a heat exchanger in the interior. The waste heat of the refrigerant circuit is in the cooler ( 2 ) of the vehicle, from which the waste heat is removed by the convection of the wind and the fan.

Die Nachteile dieser Anordnung sind:

  • – Es wird Motorleistung für den Antrieb des Kälteaggregats benötigt, die nicht für Beschleunigung und Antrieb des Fahrzeugs zur Verfügung steht und damit den Kraftstoffverbrauch erhöht.
  • – Durch die durchweg hohe Kondensationstemperatur ist der Wirkungsgrad der Kältemaschine deutlich niedriger als der marktüblicher Kältemaschinen z. B. für die Gebäudeklimatisierung.
  • – Aufgrund der benötigten, hohen Antriebsleistung ist der Betrieb der Kältemaschine im Stand nicht praktikabel. Als Folge davon heizt sich das Fahrzeug im Stand besonders stark auf. Das extrem heisse Fahrzeug ist zum Zeitpunkt des Motorstarts nicht nur besonders unkomfortabel, sondern erfordert auch eine überproportional hohe Leistung der Klimaanlage.
The disadvantages of this arrangement are:
  • - There is a need for engine power for the drive of the refrigeration unit, which is not available for acceleration and propulsion of the vehicle and thus increases fuel consumption.
  • - Due to the consistently high condensation temperature of the efficiency of the chiller is significantly lower than the standard refrigeration z. B. for the building air conditioning.
  • - Due to the high power required, the operation of the chiller in the state is not practical. As a result, the vehicle heats up particularly hot in the state. The extremely hot vehicle is not only particularly uncomfortable at the time of engine start, but also requires a disproportionately high performance of the air conditioning.

Der Gedanke, eine hitzebetriebene Kälteanlage im Auto einzusetzen, liegt nahe, jedoch sind alle bis heute bekannten Ansätze deswegen nicht für diese Aufgabe geeignet, da sie eine besonders niedrige Kondensationstemperatur zu ihrer Funktion brauchen.The idea to use a heat-driven refrigeration system in the car is obvious, but all known approaches are therefore not suitable for this task, since they need a particularly low condensation temperature to their function.

Mit der Patentanmeldung eines 'Verfahren und Vorrichtung zur Realisierung einer Hitzebetriebenen Kältemaschine mit interner Wärmerückgewinnung zur Steigerung des Wirkungsgrades und der Möglichkeit der Weiternutzung der entstehenden Abwärme' vom 24.07.2011 steht eine hitzebetriebene Kältemaschine zur Verfügung, die einen ausreichenden Wirkungsgrad (COP > 1) hat und die Abwärme auf einem so hohen Niveau abgeben kann, dass diese über den Kühler eines marktüblichen Kraftfahrzeugs abgeführt werden kann.With the patent application of a 'Method and apparatus for implementing a heat-driven chiller with internal heat recovery to increase the efficiency and the possibility of continued use of the resulting waste heat' of 24.07.2011 is a heat-driven chiller available that has a sufficient efficiency (COP> 1) and can deliver the waste heat at such a high level that it can be dissipated via the radiator of a commercially available motor vehicle.

Ausführungsbeispiel:Embodiment:

2 zeigt, wie im wesentlichen der Abgaskrümmer um einen Wärmetauscher (9) erweitert wurde, um die Abwärme des Motors als Antriebshitze an ein Wärmeträgermedium zu übergeben. Alternativ dazu könnte man auch den eigentlichen Kühlkreis des Motors (1), der mittels Kühlwasserpumpe (6) die Wärme an den Kühler (2) abführt, nutzen. Dazu wäre aber eine Umkonstruktion des Motors dahin gehend erforderlich, dass die Kühlflüssigkeit auf Temperaturne jenseits der +200°C gebracht werden müsste. 2 shows how substantially the exhaust manifold around a heat exchanger ( 9 ) was extended to transfer the waste heat of the engine as drive heat to a heat transfer medium. Alternatively, you could also the actual cooling circuit of the engine ( 1 ), which by means of cooling water pump ( 6 ) the heat to the radiator ( 2 ) dissipates, use. But this would require a redesign of the engine to the effect that the cooling liquid would have to be brought to Temperaturne beyond the + 200 ° C.

Der so aufgeheizte Wärmeträger wird durch eine Umwälzpumpe (12) in die Hitzebetriebene Kältemaschine (10) als Antrieb (10c) gepumpt.The heated heat transfer medium is heated by a circulation pump ( 12 ) in the heat-driven chiller ( 10 ) as a drive ( 10c ) pumped.

Die Kälteseite (10b) kühlt einen Wärmeträgerkreislauf, der über eine Umwälzpumpe (8) in Bewegung gehalten wird. Das kalte Medium wird durch den Verdampfer (5) geleitet, der hier nur als Wärmetauscher dient.The cold side ( 10b ) cools a heat carrier circuit, which via a circulating pump ( 8th ) is kept in motion. The cold medium is passed through the evaporator ( 5 ), which serves only as a heat exchanger here.

Die Abwärme der Kältemaschine, die am Wärmetauscher (10a) entsteht, wird in einem weiteren Wärmeträgerkreis durch die Pumpe (11) in den Kühler (2) abgeführt. Hierzu wird der Wärmetauscher genutzt, der normalerweise der Kondensator der Klimaanlage ist.The waste heat of the chiller, which is at the heat exchanger ( 10a ), is in a further heat transfer circuit through the pump ( 11 ) in the cooler ( 2 ) dissipated. For this purpose, the heat exchanger is used, which is usually the condenser of the air conditioner.

Zusätzlich ist die Kältemaschine mit einem Speicherbereich (13) ausgestattet. Es handelt sich um die selben Behälter, von denen eine gewisse Anzahl den eigentlichen Kern der Kältemaschine bildet. Eine energetische Betrachtung des Fahrzeugs zeigt, dass während des normalen Betriebs mehr Abwärme vom Motor zur Verfügung steht, als für den Betrieb der Klimaanlage benötigt wird. Daher werden mehr Behälter desorbiert, als gleichzeitig adsorbiert/absorbiert werden. Als Folge davon steht eine Menge vorbereiteter Behälter fertig vorbereitet zur Verfügung, wenn der Motor abgestellt wird.In addition, the chiller with a storage area ( 13 ) fitted. These are the same containers, of which a certain number form the actual core of the chiller. An energetic view of the vehicle shows that during normal operation more waste heat from the engine is available than is needed for the operation of the air conditioner. Therefore, more containers are desorbed than adsorbed / absorbed at the same time. As a result, a lot of prepared containers are ready prepared when the engine is stopped.

Die Kälteerzeugung durch Adsorption/Absorbtion kann dann mit wenig energetischem Aufwand auch im Stand des Motors genutzt werden.The cooling by adsorption / absorption can then be used with little energy expenditure in the state of the engine.

Die erreichten Vorteile:The advantages achieved:

Das Fahrzeug muss keine Antriebsleistung für die Klimatisierung aufwenden, dadurch wird die Kälte wirtschaftlicher erzeugt. Ausserdem ist die Stand-Klimatisierung ein Komfortfaktor und dadurch, dass der Innenraum nicht so heiß wird, während der Motor ausgeschaltet ist, muss beim Wiedereinschalten des Motors nicht so viel Kälteleistung verwendet werden, um den Innenraum herunter zu kühlen.The vehicle does not have to spend any drive power for the air conditioning, thereby the cold is produced more economically. In addition, the auxiliary air conditioner is a comfort factor, and because the interior does not become so hot while the engine is off, when the engine is restarted, less cooling power must be used to cool down the interior.

Claims (7)

Verfahren und Vorrichtung zur Klimatisierung von Verbrennungsmotorbetriebenen Fahrzeugen mit der Möglichkeit einer Standklimafunktion, dadurch gekennzeichnet, dass eine hitzebetriebene Kältemaschine dazu verwendet wird, deren Kondensationstemperatur prozessbedingt so hoch sein darf, dass die Rückkühlung durch den Kühler des Fahrzeugs dazu ausreicht.Method and device for the air conditioning of internal combustion engine-powered vehicles with the possibility of a stationary climate function, characterized in that a heat-driven refrigerating machine is used, the condensation temperature of which may be so high due to the process, that the cooling by the radiator of the vehicle is sufficient. Verfahren und Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass die Kältemaschine durch die Abwärme des Antriebsaggregates angetreiben wird, also nicht durch Antriebsleistung.Method and device according to claim 1, characterized in that the chiller is driven by the waste heat of the drive unit, not by drive power. Verfahren und Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass die Antriebswärme durch einen Wärmetauscher am Abgaskrümmer eingefangen wird.Method and device according to claim 1, characterized in that the drive heat is captured by a heat exchanger at the exhaust manifold. Verfahren und Vorrichtung nach Patentanspruch 3, dadurch gekennzeichnet, dass die Abwärme der Kältemaschine in den Wärmetauscher im Kühler eingespeist wird, der üblicherweise der Kondensator einer Kompressionskältemaschine ist.Method and device according to claim 3, characterized in that the waste heat of the refrigerator is fed into the heat exchanger in the cooler, which is usually the condenser of a compression refrigeration machine. Verfahren und Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass mehr Behälter mit dem im Kälteprozess verwendeten Trägerstoff vorhanden sind, als für einen kontinuierlichen Betrieb erforderlich ist.Method and device according to claim 1, characterized in that more containers are present with the carrier used in the refrigeration process, as required for continuous operation. Verfahren und Vorrichtung nach Patentanspruch 5, dadurch gekennzeichnet, dass diese Behälter parallel zur laufenden Kälteerzeugung bei laufendem Motor vorbereitet werden können.Method and device according to claim 5, characterized in that these containers can be prepared parallel to the current refrigeration with the engine running. Verfahren und Vorrichtung nach Patentanspruch 6, dadurch gekennzeichnet, dass diese Behälter bei stehendem Motor durch Adsorption oder Absorption Kälte erzeugen können, die zur Kühlung des Fahrzeug-Innenraums genutzt werden kann.A method and apparatus according to claim 6, characterized in that these containers can generate refrigeration with the engine by adsorption or absorption, which can be used to cool the vehicle interior.
DE102011109584.9A 2011-08-07 2011-08-07 Method and device for the air conditioning of internal combustion engine-powered vehicles with the possibility of a stationary climate function Active DE102011109584B4 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103743151A (en) * 2013-12-11 2014-04-23 上海交通大学 Automobile waste heat recovering parking air-conditioner based on absorption type refrigerating and working method thereof
DE102014215891A1 (en) 2014-08-11 2016-02-11 Bayerische Motoren Werke Aktiengesellschaft Thermal management system and method of operating such
EP4052939A1 (en) * 2021-03-03 2022-09-07 CM Fluids AG Caloric vehicle management system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19900965A1 (en) * 1999-01-13 2000-07-20 Volkswagen Ag Absorption air-conditioning unit has desorber, exhaust flap in exhaust pipe, and pipe before exhaust flap connected with lower region of desorber
DE102007051868A1 (en) * 2007-10-30 2009-05-07 Robert Bosch Gmbh Exhaust gas absorption cooling method for e.g. petrol engine, in e.g. private passenger vehicle, involves warming up refrigerant, and condensing condensation water from cooled exhaust gas
DE102009007231A1 (en) * 2009-02-03 2010-08-12 Siemens Aktiengesellschaft Vehicle, in particular motor vehicle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10202979C1 (en) * 2002-01-26 2003-09-25 Eberspaecher J Gmbh & Co Device for cooling and / or heating a room
DE102011108258B4 (en) * 2011-07-24 2015-02-12 VauQuadrat GmbH Process for the realization of a heat-driven chiller with internal heat recovery to increase the efficiency and the possibility of further use of the resulting waste heat

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19900965A1 (en) * 1999-01-13 2000-07-20 Volkswagen Ag Absorption air-conditioning unit has desorber, exhaust flap in exhaust pipe, and pipe before exhaust flap connected with lower region of desorber
DE102007051868A1 (en) * 2007-10-30 2009-05-07 Robert Bosch Gmbh Exhaust gas absorption cooling method for e.g. petrol engine, in e.g. private passenger vehicle, involves warming up refrigerant, and condensing condensation water from cooled exhaust gas
DE102009007231A1 (en) * 2009-02-03 2010-08-12 Siemens Aktiengesellschaft Vehicle, in particular motor vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103743151A (en) * 2013-12-11 2014-04-23 上海交通大学 Automobile waste heat recovering parking air-conditioner based on absorption type refrigerating and working method thereof
CN103743151B (en) * 2013-12-11 2016-02-10 上海交通大学 Automobile waste heat based on absorption type refrigerating reclaims parking air conditioner and method of work thereof
DE102014215891A1 (en) 2014-08-11 2016-02-11 Bayerische Motoren Werke Aktiengesellschaft Thermal management system and method of operating such
EP4052939A1 (en) * 2021-03-03 2022-09-07 CM Fluids AG Caloric vehicle management system

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