DE102009030625A1 - Method for operating heat generating system for generating heat from waste heat of exhaust gases in e.g. condensing boiler, involves using part of heat potential of heated cold water by heat exchanger for generating hot water - Google Patents
Method for operating heat generating system for generating heat from waste heat of exhaust gases in e.g. condensing boiler, involves using part of heat potential of heated cold water by heat exchanger for generating hot water Download PDFInfo
- Publication number
- DE102009030625A1 DE102009030625A1 DE102009030625A DE102009030625A DE102009030625A1 DE 102009030625 A1 DE102009030625 A1 DE 102009030625A1 DE 102009030625 A DE102009030625 A DE 102009030625A DE 102009030625 A DE102009030625 A DE 102009030625A DE 102009030625 A1 DE102009030625 A1 DE 102009030625A1
- Authority
- DE
- Germany
- Prior art keywords
- heat
- water
- heat exchanger
- exhaust gas
- hot water
- 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.)
- Withdrawn
Links
- 239000007789 gas Substances 0.000 title claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000002918 waste heat Substances 0.000 title claims abstract description 9
- 239000000498 cooling water Substances 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 3
- 238000005338 heat storage Methods 0.000 claims description 13
- 241000711969 Chandipura virus Species 0.000 claims description 10
- 208000015951 Cytophagic histiocytic panniculitis Diseases 0.000 claims description 10
- 230000020169 heat generation Effects 0.000 claims description 8
- 239000003651 drinking water Substances 0.000 claims description 6
- 235000020188 drinking water Nutrition 0.000 claims description 6
- 239000013505 freshwater Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 2
- 238000013517 stratification Methods 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 241000589248 Legionella Species 0.000 description 1
- 208000007764 Legionnaires' Disease Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D12/00—Other central heating systems
- F24D12/02—Other central heating systems having more than one heat source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/0005—Domestic hot-water supply systems using recuperation of waste heat
- F24D17/001—Domestic hot-water supply systems using recuperation of waste heat with accumulation of heated water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/16—Waste heat
- F24D2200/18—Flue gas recuperation
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/18—Domestic hot-water supply systems using recuperated or waste heat
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Betrieb einer Anlage zur Wärmeerzeugung aus der Abwärme der Abgase von insbesondere Erdgasbetriebenen Kesselanlagen und/oder BHKW's.The The invention relates to a method for operating a plant for heat generation from the waste heat the exhaust gases of, in particular, gas-fired boilers and / or CHP.
In allen größeren Gebäuden und Wohnanlagen sind überwiegend Heizungsanlagen mit Heizkörpern installiert. In der Regel liegen in diesen Anlagen die Rücklauftemperaturen des Heiznetzes ganzjährig bei zumindest 50°C und höher.In all major buildings and Residential complexes are predominantly Heating systems with radiators Installed. As a rule, the return temperatures are in these systems the heating network all year round at least 50 ° C and higher.
Dementsprechend liegt die Abgastemperatur von Kesseln, bspw. Niedertemperatur- oder Brennwertkessel, oder BHKW's bei ca. 60–70°C und darüber.Accordingly is the exhaust gas temperature of boilers, eg. Low-temperature or Condensing boiler, or CHP's at about 60-70 ° C and above.
Der Nachteil dieser bekannten Anlagentechnik liegt darin, dass damit noch bedeutende Energiemengen durch den Kamin entweichen, insbesondere abhängig von der installierten Kesselanlage bzw. des installierten BHKW's sind dies 10–20% des jährlichen Energieeinsatzes.Of the Disadvantage of this known system technology is that so still significant amounts of energy escape through the fireplace, in particular dependent on of the installed boiler plant or the installed CHP this is 10-20% of the annual energy input.
Aufgabe der Erfindung ist es, die in den Abgasen von Kesseln, Brennwertkesseln und/oder BHKW's enthaltene Wärme nutzbar zu machen. Diese Nutzung soll insbesondere im Rahmen erfolgen.task The invention is the in the exhaust gases of boilers, condensing boilers and / or CHP's contained heat to make usable. This use should be done especially within the framework.
Diese Aufgabe der Erfindung wird durch ein Verfahren gemäß den Merkmalen nach Anspruch 1 gelöst.These The object of the invention is achieved by a method according to the features solved according to claim 1.
Erfindungswesentlich ist, dass das Verfahren zum Betrieb einer Anlage zur Wärmeerzeugung aus der Abwärme der Abgase von insbesondere Erdgas betriebenen Kesselanlagen und/oder BHKW's, wobei unter Nutzung eines Abgaswärmetauschers das Kühlwasser, welches sich in einem geschlossenen Kühlwasserkreislauf befindet, erwärmt wird, das erwärmte Kühlwasser gespeichert und zumindest ein Teil des Wärmepotentials des erwärmten Kühlwassers unter Nutzung eines Wärmetauschers zur Erwärmung des Wassers einer Warmwasserbereitung genutzt wird, wobei keine Vermischung des Kühlwassers und des Wassers der Warmwasserbereitung erfolgt.essential to the invention is that the process of operating a plant for heat production from the waste heat the exhaust gases of particular natural gas operated boiler systems and / or BHKW's, whereby under Use of an exhaust gas heat exchanger the cooling water, which is located in a closed cooling water circuit, heated that is heated cooling water stored and at least part of the heat potential of the heated cooling water using a heat exchanger for warming the water of a water heater is used, with no Mixing of the cooling water and the water of the hot water.
Die Anlage bzw. deren Komponenten sind in üblicher Art und Weise dimensioniert. Insbesondere der Abgaswärmetauscher ist bezüglich Aufbau, Dimensionierung und/oder Leistung auf die Wärmeerzeugungsanlage, durch deren Kamin die entweichenden Abgase durch den Abgaswärmetauscher gekühlt werden, in üblicher Art und Weise abstimmbar.The System or its components are dimensioned in the usual way. In particular, the exhaust gas heat exchanger is re Construction, dimensioning and / or power to the heat generation plant, through whose chimney the escaping exhaust gases are cooled by the exhaust gas heat exchanger, in usual Way tunable.
Die Wärmespeicher sind in üblicher Art und Weise ausgeführt, dimensioniert und isoliert.The heat storage are in usual Fashion running, dimensioned and insulated.
Dieses Verfahren kann in Gebäuden mit zentraler Warmwasserbereitung, bspw. in größeren Wohnanlagen, Krankenhäusern, Alten- und Pflegeheimen und Hallenbädern eingesetzt werden.This Procedure can be in buildings with central water heating, for example in larger residential complexes, hospitals, senior citizens and nursing homes and indoor pools be used.
Vorteilhafte Ausgestaltungen des erfindungsgemäßen Verfahrens werden durch die Merkmale der Ansprüche 2 bis 9 angegeben, ohne die Erfindung damit zu beschränken.advantageous Embodiments of the method according to the invention are characterized the features of the claims 2 to 9 without limiting the invention.
Bevorzugt ist, dass das Kühlwasser im Kühlwasserkreislauf umgewälzt wird, so eine Temperaturdifferenz von mindestens 10 K zwischen dem Eingang des Abgaswärmetauschers und dem Ausgang des Abgaswärmetauschers besteht.Prefers is that the cooling water in the cooling water circuit circulated is a temperature difference of at least 10 K between the Entrance of the exhaust gas heat exchanger and the outlet of the exhaust gas heat exchanger consists.
Weiterhin ist bevorzugt, dass das Kühlwasser im Kühlwasserkreislauf umgewälzt wird, so die Abgastemperatur über 30°C beträgt und eine Temperaturdifferenz von mindestens 10 K zwischen dem Eingang des Abgaswärmetauschers und dem Ausgang des Abgaswärmetauschers besteht.Farther it is preferred that the cooling water in the cooling water circuit circulated becomes, so the exhaust gas temperature over 30 ° C and a temperature difference of at least 10 K between the inlet of the exhaust gas heat exchanger and the outlet of the exhaust gas heat exchanger consists.
Außerdem ist bevorzugt, dass mit einem Abgaswärmetauscher die durch den Kamin entweichenden Abgase abgekühlt werden und anschließend diese so gewonnene Wärme über einen unabhängig vom Heiznetz agierenden Wasserkreis in Wärmespeichern zwischengelagert wird.Besides that is preferred that with an exhaust gas heat exchanger which are cooled by the chimney exhaust gases and then this so won over a heat independent of Heating network acting water cycle stored in heat storage becomes.
Die
Frischwasserstation
Diese Aufgabe der Erfindung wird außerdem durch eine Anlage gemäß den Merkmalen nach Anspruch 10 gelöst.These The object of the invention is also by an installation according to the characteristics solved according to claim 10.
Erfindungswesentlich
ist diesbezüglich,
dass diese Anlage zumindest aus den Komponenten: Abgaswärmetauscher
(
Bevorzugt
ist, dass zum Zeitpunkt eines anliegenden Warmwasserbedarfs der
Warmwasserbereitung zumindest einen Teil dieser Wärme über den Wärmetauscher
(
Außerdem ist
bevorzugt, dass der Abgaswärmetauscher
(
Einen weiteren Aspekt der Erfindung betrifft die erfindungsgemäße Verwendung gemäß den Merkmalen des Anspruchs 14.a Another aspect of the invention relates to the use according to the invention according to the characteristics of claim 14.
Anhand
des Schemas gemäß
Mit
einem in den Abgasweg, insbesondere in den Kamin, (in
Ein
Anlegethermostat
Mit
einer Frischwasserstation
Die
Warmwasserzirkulationsleitung
Die
an sich bekannte Trinkwasserstation
Die
Trinkwasserstation
Der Anteil der zentralen Warmwasserbereitung am Gesamtenergieverbrauch der Gebäude beträgt ca. 30% bei gut gedämmten Häusern und ca. 17–20% bei Bestandbauten.Of the Share of central hot water preparation in the total energy consumption the building is about 30% with well insulated houses and about 17-20% in existing buildings.
Damit
können
die im Abgaswärmetauscher
Das beschriebene Verfahren zur Wärmeerzeugung aus der Abwärme der Abgase von Erdgas-betriebenen Kesselanlagen und BHKW's steht im direkten Vergleich zu anderen energiesparenden Maßnahmen wie z. B.
- – Gebäudedämmmaßnahmen,
- – Austausch der Fenster,
- – Einbau einer Solaranlage.
- - building insulation measures,
- - replacement of the windows,
- - Installation of a solar system.
Grundsätzlich sind alle Maßnahmen zur Reduzierung des Energieverbrauches der Gebäude sinnvoll. Zum Vergleich der Maßnahmen sollten jedoch die notwendigen Investitionskosten mit einbezogen werden.Basically all measures makes sense to reduce the energy consumption of buildings. For comparison the measures However, the necessary investment costs should be included become.
In
der
Bei einer Kesselleistung von 200 kW ergibt sich ein jährlicher Wärmegewinn aus den Abgasen von ca. 44.000 kWh.at a boiler output of 200 kW results in an annual heat gain from the exhaust gases of approx. 44,000 kWh.
Um die gleiche Wärmemenge mit einer Solaranlage zu nutzen, benötigt diese eine Fläche von ca. 100 m2.To use the same amount of heat with a solar system, this requires an area of about 100 m 2 .
Die Solaranlage verursacht Kosten von ca. 60.000 EUR, die Wärmeentzugsanlage nach dem beschriebenen Verfahren jedoch nur ca. 38.000 EUR.The Solar system causes costs of about 60,000 EUR, the heat extraction system according to the described method, however, only about 38,000 EUR.
Damit ergeben sich bei Einsatz von Eigenkapital Laufzeiten zur Deckung der Maßnahme bei einer Solaranlage von über 20 Jahren, bei der Wärmeentzugsanlage aus Abgasen von ca. 13 bis 15 Jahren.In order to when using equity maturities cover to cover the measure at a solar system of over 20 years, at the heat extraction plant from exhaust fumes of approx. 13 to 15 years.
Die Laufzeiten bei Wärmedämmmaßnahmen (z. B. Außenwände, Dach) bezogen auf die gleiche Energieeinsparung liegen ebenfalls bei ca. 20 Jahren und darüber.The durations for thermal insulation measures (eg exterior walls, roof) based on the same Energy savings are also around 20 years and over.
Mit dem erfindungsgemäßen Verfahren zur Wärmeerzeugung aus der Abwärme der Abgase von Erdgas-betriebenen Kesselanlagen und BHKW's wird der Brennstoff Erdgas vollständig genutzt.With the method according to the invention for heat generation from the waste heat The exhaust gases from natural gas-fired boiler plants and CHPs become the fuel Natural gas completely used.
Das Verfahren ist in der Erstellung billiger als die konkurrierenden Maßnahmen.The Procedure is cheaper to build than competing Activities.
Des Weiteren wird es eigenständig unabhängig vom bestehenden Heiznetz betrieben und lässt sich in der Regel in bestehenden Räumlichkeiten unterbringen.Of Further, it becomes independent independently operated by the existing heating network and can usually be found in existing premises accommodate.
- 11
- Brennwertkesselcondensing boilers
- 22
- Abgas (im druckdichten Abgassystem)exhaust (in the pressure-tight exhaust system)
- 33
- WarmwasserbereiterBoiler
- 44
-
Kaltwasserzuleitung
(zum Warmwasserbereiter
13 )Cold water supply (to the water heater13 ) - 55
- Warmwasserzirkulation Gebäude/WarmwasserbereitungHot water circulation Building / water heating
- 66
- AbgaswärmetauscherExhaust gas heat exchanger
- 6.16.1
- Eingang des Abgaswärmetauschersentrance the exhaust gas heat exchanger
- 6.26.2
- Ausgang des Abgaswärmetauschersoutput the exhaust gas heat exchanger
- 77
-
Anlegethermostat
(schaltet über
30°C zur Wärmegewinnung
Pumpe
10 ein)Immersion thermostat (switches over 30 ° C to heat pump10 one) - 88th
-
Leitung
(im Kühlwasserkreis
8 /9 )Line (in cooling water circuit8th /9 ) - 99
-
Leitung
(im Kühlwasserkreis
8 /9 )Line (in cooling water circuit8th /9 ) - 1010
- Umwälzpumpe (230 Volt)circulating pump (230 volts)
- 1111
-
Temperaturdifferenzregler
(steuert Pumpe
10 )Temperature difference controller (controls pump10 ) - 1212
- Wärmespeicherheat storage
- 1313
- FrischwasserstationFresh water station
- 1414
- Druckhaltung und Absicherungpressure maintenance and hedging
- 1515
- Messung Wärmeertrag AbgaswärmetauscherMeasurement heat output Exhaust gas heat exchanger
- 1616
- Kondensatablaufcondensate drain
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009030625A DE102009030625A1 (en) | 2009-06-25 | 2009-06-25 | Method for operating heat generating system for generating heat from waste heat of exhaust gases in e.g. condensing boiler, involves using part of heat potential of heated cold water by heat exchanger for generating hot water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009030625A DE102009030625A1 (en) | 2009-06-25 | 2009-06-25 | Method for operating heat generating system for generating heat from waste heat of exhaust gases in e.g. condensing boiler, involves using part of heat potential of heated cold water by heat exchanger for generating hot water |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009030625A1 true DE102009030625A1 (en) | 2010-12-30 |
Family
ID=43217888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102009030625A Withdrawn DE102009030625A1 (en) | 2009-06-25 | 2009-06-25 | Method for operating heat generating system for generating heat from waste heat of exhaust gases in e.g. condensing boiler, involves using part of heat potential of heated cold water by heat exchanger for generating hot water |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102009030625A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2602559A3 (en) * | 2011-12-05 | 2013-12-25 | Pawel Kurzawski | A method for improving thermal efficiency of a central hot medium buffered supply installation equipped with a storage heater wherein the heat source is a low-temperature boiler heater, and the central hot medium buffered supply installation |
EP4269882A1 (en) * | 2022-04-25 | 2023-11-01 | Gebr. Kemper GmbH + Co. KG | Hot water supply system with heat recovery |
-
2009
- 2009-06-25 DE DE102009030625A patent/DE102009030625A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2602559A3 (en) * | 2011-12-05 | 2013-12-25 | Pawel Kurzawski | A method for improving thermal efficiency of a central hot medium buffered supply installation equipped with a storage heater wherein the heat source is a low-temperature boiler heater, and the central hot medium buffered supply installation |
EP4269882A1 (en) * | 2022-04-25 | 2023-11-01 | Gebr. Kemper GmbH + Co. KG | Hot water supply system with heat recovery |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20120103 |