WO2011136629A2 - Solid fuel fired boiler with a gas burner for household use and gas combustion method - Google Patents

Solid fuel fired boiler with a gas burner for household use and gas combustion method Download PDF

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Publication number
WO2011136629A2
WO2011136629A2 PCT/LT2011/000005 LT2011000005W WO2011136629A2 WO 2011136629 A2 WO2011136629 A2 WO 2011136629A2 LT 2011000005 W LT2011000005 W LT 2011000005W WO 2011136629 A2 WO2011136629 A2 WO 2011136629A2
Authority
WO
WIPO (PCT)
Prior art keywords
burner
channel
fuel
gas
air
Prior art date
Application number
PCT/LT2011/000005
Other languages
French (fr)
Other versions
WO2011136629A3 (en
Inventor
Kestutis Braukyla
Virgilijus BRAUKYLA
Original Assignee
Kestutis Braukyla
Braukyla Virgilijus
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kestutis Braukyla, Braukyla Virgilijus filed Critical Kestutis Braukyla
Publication of WO2011136629A2 publication Critical patent/WO2011136629A2/en
Publication of WO2011136629A3 publication Critical patent/WO2011136629A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B10/00—Combustion apparatus characterised by the combination of two or more combustion chambers
    • F23B10/02—Combustion apparatus characterised by the combination of two or more combustion chambers including separate secondary combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B50/00—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone
    • F23B50/02—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom
    • F23B50/04—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom the movement of combustion air and flue gases being substantially transverse to the movement of the fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B90/00—Combustion methods not related to a particular type of apparatus
    • F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
    • F23B90/06—Combustion methods not related to a particular type of apparatus including secondary combustion the primary combustion being a gasification or pyrolysis in a reductive atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/10—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses
    • F23G7/105—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses of wood waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L1/00—Passages or apertures for delivering primary air for combustion 
    • F23L1/02—Passages or apertures for delivering primary air for combustion  by discharging the air below the fire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel 
    • F23L9/04—Passages or apertures for delivering secondary air for completing combustion of fuel  by discharging the air beyond the fire, i.e. nearer the smoke outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/34—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2230/00—Solid fuel fired boiler
    • F24H2230/02—Solid and fluid fuel fired boilers

Definitions

  • the invention belongs to the field of heating appliances, namely solid fuel boilers.
  • a known generator with a burner of gas obtained from organic materials described in Patent Application No. 2009 054 published in 2010 in the official gazette of the State Patent Bureau Isradimai, dizainas, preki3 ⁇ 4 zenklai ("Inventions, design, trade marks") No. 4, consists of a metal housing, a fuel stocking shaft, air supply units, two combustion chambers, a combustible gas collection chamber, a burner, and metal collectors arranged in the direction of the burner.
  • the burner is made of a tube with double perforated walls.
  • the known technical solution does not guarantee intensive formation of fuel mixture or effective combustion and at the same time efficient transfer of heat to the heat exchanger.
  • the aim of the invention is to increase the intensity of fuel mixture formation, the efficiency of its combustion and at the same time the efficiency of the boiler.
  • the fuel stocking shaft of the solid fuel fired boiler where the initial amount of air is supplied through a valve in the shaft door, is directly connected to a metal burner which consists of double-wall housing with a hollow channel installed in the gas combustion chamber.
  • the housing of the burner has some openings: one opening is in the outer wall of the burner housing for secondary air supply from the space between the walls of the burner and other openings are for releasing heated secondary air into the burner channel.
  • an additional air supply tube is installed before the burner on the side of the fuel stocking shaft.
  • the objective of the invention is also achieved by supplying a secondary amount of air from the ambience through the opening in the outer wall of the burner between the burner walls, which moves towards the openings of the inner walls and is heated up by the hot burner walls and then goes out through the openings of the inner walls of the burner into the burner channel where it gets mixed with the combustible gas from the combustion chamber which has entered the burner channel through the metal ring and thus produces a fuel mixture combusted in the channel of the burner.
  • additional air is supplied into the burner through the air tube installed before the burner on the side of the fuel stocking shaft.
  • the housing of the solid fuel fired boiler for household use 1 is made of welded sheet metal.
  • the inner walls of the boiler, which have direct contact with the flame and combustion products, are 6 mm thick; the outer walls are 4 mm thick. From outside, the boiler is insulated. The cavity between the walls is filled with water.
  • Inside of the boiler housing there is a fuel stocking shaft 2.
  • the top of the fuel stocking shaft 2 is covered with a fire resistant lid 3.
  • the combustion chamber 4 at the bottom of the fuel stocking shaft 2 is separated from the chamber with fire resistant grating 5.
  • the fuel shaft 6 has a door with a valve designed to adjust the amount of the initial air supply, which is used to ignite the solid fuel in the fuel stocking shaft 2, to supply the initial air into the combustion chamber 4, and to clean the combustion chamber 4 from burnt particles of fuel (ash, soot).
  • the fuel stocking shaft 2 is connected to the burner 7 mounted in the gas combustion chamber 8.
  • the burner 7 is made of metal. It is resistant to heat and high temperature fluctuations. It consists of housing with double walls and a hollow channel 9. To reduce the opening for entering gas, a metal ring 10 is installed at one end of the burner 7, through which combustible gas enters from the combustion chamber 4.
  • the housing of the burner 7 has several openings: one opening 11 in the outer wall of the burner housing for the secondary air supply from the space between the walls of the burner and other openings 12 in the inner wall of the burner for releasing heated secondary air into the channel 9 of the burner 7.
  • an additional air supply tube 13 can be installed before the burner 7 on the side of the fuel stocking shaft 2, since the amount of supplied air determines the maintenance of the gas combustion process and its intensity as well as an efficient heat transfer to the heat exchanger 14.
  • the solid fuel fired boiler with the burner 7 is connected to the elements of the heating system. At the top level of the boiler there is a water outlet pipe 15, at the bottom part of the boiler there is a water inlet (return) pipe 16.
  • the construction of the boiler provides for the function of boiler extinction.
  • a safety valve is installed for this purpose (not in the drawing). It protects the boiler against excessive pressure. Combustion products are discharged into the ambience through the chimney 17.
  • the lid 3 of the fuel stocking shaft 2 is opened and the shaft is loaded with fuel.
  • the initial air is supplied into the combustion chamber 4 through the valve in the door 6 and solid fuel is fired.
  • Wood, solid wood waste, billets, coal, peat and sawdust briquettes, and grain can be used as solid fuel.
  • combustible gas is released. From the combustion chamber 4, combustible gas gets through the metal ring 10 into the channel 9 of the burner 7. After the combustible gas passes through the zone of the metal ring 10, it intensively expands along the hollow channel 9 of the burner 7. Heated secondary air also gets into the channel 9 of the burner 7 through the openings 12 in the inner wall.
  • the secondary amount of air from the ambience first gets between the walls of the burner 7, which heat it up while it moves towards the openings of the inner walls 12.
  • the heated air mixes with combustible gas and produces a fuel mixture.
  • the fuel mixture combusts at a high temperature: 900 °C - 1700 °C.
  • the heat generated by the combusted fuel mixture - heated air and combustion products - rises to the top of the boiler (shown by arrows in the drawing) and releases heat to the heat exchanger 14. Combustion products are discharged through the chimney 17.
  • the solid fuel fired boiler is intended for heating small and large premises (up to 1000 m 2 ).
  • the construction of the boiler ensures an effective combustion process and an efficient transfer of heat to the heat exchanger. Due to the primary, secondary and additional air supply, the combustion process is intensive and stable.
  • the technical solution of the burner ensures intensive mixing of combustible gas and heated air and a complete combustion of combustible gas at a high temperature.
  • the advantage of the boiler is that that wet fuel can be used for heating the combustion process whereof releases gas, which burns in the combustion chamber and maintains a combustion temperature exceeding 1500 °C.

Abstract

The fuel stocking shaft (2) is connected with a burner (7) mounted in the combustion chamber (4). For initial air supply to the combustion chamber (4), the door (6) of the fuel stocking shaft (2) is equipped with a valve. The burner (7) contains of double- wall housing with a hollow channel (9). The housing of the burner (7) has an opening (12) for secondary air supply to the channel (9) and openings (11) for releasing hot air from the channel (9). A metal ring (10) is placed in the channel (9) of the burner (7) to decrease the space for combustible gas entering the channel (9) and at the same time to increase its diffusion. While fuel is burning, the released combustible gas from the combustion chamber (4) gets into the channel (9) through the ring (10), where it gets heated and mixed with the secondary air and thus produces a combustible mixture.

Description

SOLID FUEL FIRED BOILER WITH A GAS BURNER FOR HOUSEHOLD USE AND
GAS COMBUSTION METHOD
The invention belongs to the field of heating appliances, namely solid fuel boilers.
A known generator with a burner of gas obtained from organic materials described in Patent Application No. 2009 054 published in 2010 in the official gazette of the State Patent Bureau Isradimai, dizainas, preki¾ zenklai ("Inventions, design, trade marks") No. 4, consists of a metal housing, a fuel stocking shaft, air supply units, two combustion chambers, a combustible gas collection chamber, a burner, and metal collectors arranged in the direction of the burner. The burner is made of a tube with double perforated walls.
The known technical solution does not guarantee intensive formation of fuel mixture or effective combustion and at the same time efficient transfer of heat to the heat exchanger.
The aim of the invention is to increase the intensity of fuel mixture formation, the efficiency of its combustion and at the same time the efficiency of the boiler.
In order to achieve the objective of the invention, the fuel stocking shaft of the solid fuel fired boiler, where the initial amount of air is supplied through a valve in the shaft door, is directly connected to a metal burner which consists of double-wall housing with a hollow channel installed in the gas combustion chamber. The housing of the burner has some openings: one opening is in the outer wall of the burner housing for secondary air supply from the space between the walls of the burner and other openings are for releasing heated secondary air into the burner channel. Besides, there is a metal ring mounted in the burner channel, which reduces the opening for combustible gas entering the channel. Furthermore, to achieve the objective, an additional air supply tube is installed before the burner on the side of the fuel stocking shaft.
The objective of the invention is also achieved by supplying a secondary amount of air from the ambience through the opening in the outer wall of the burner between the burner walls, which moves towards the openings of the inner walls and is heated up by the hot burner walls and then goes out through the openings of the inner walls of the burner into the burner channel where it gets mixed with the combustible gas from the combustion chamber which has entered the burner channel through the metal ring and thus produces a fuel mixture combusted in the channel of the burner. Moreover, to achieve the objective of the invention, additional air is supplied into the burner through the air tube installed before the burner on the side of the fuel stocking shaft.
The invention is illustrated in a drawing.
The housing of the solid fuel fired boiler for household use 1 is made of welded sheet metal. The inner walls of the boiler, which have direct contact with the flame and combustion products, are 6 mm thick; the outer walls are 4 mm thick. From outside, the boiler is insulated. The cavity between the walls is filled with water. Inside of the boiler housing, there is a fuel stocking shaft 2. The top of the fuel stocking shaft 2 is covered with a fire resistant lid 3. The combustion chamber 4 at the bottom of the fuel stocking shaft 2 is separated from the chamber with fire resistant grating 5. The fuel shaft 6 has a door with a valve designed to adjust the amount of the initial air supply, which is used to ignite the solid fuel in the fuel stocking shaft 2, to supply the initial air into the combustion chamber 4, and to clean the combustion chamber 4 from burnt particles of fuel (ash, soot). The fuel stocking shaft 2 is connected to the burner 7 mounted in the gas combustion chamber 8. The burner 7 is made of metal. It is resistant to heat and high temperature fluctuations. It consists of housing with double walls and a hollow channel 9. To reduce the opening for entering gas, a metal ring 10 is installed at one end of the burner 7, through which combustible gas enters from the combustion chamber 4. Such reduction in a section of the channel 9 of the burner guarantees efficient diffusion of the combustible gas towards the broader section of the channel 9 of the burner. The housing of the burner 7 has several openings: one opening 11 in the outer wall of the burner housing for the secondary air supply from the space between the walls of the burner and other openings 12 in the inner wall of the burner for releasing heated secondary air into the channel 9 of the burner 7. Besides, an additional air supply tube 13 can be installed before the burner 7 on the side of the fuel stocking shaft 2, since the amount of supplied air determines the maintenance of the gas combustion process and its intensity as well as an efficient heat transfer to the heat exchanger 14.
The solid fuel fired boiler with the burner 7 is connected to the elements of the heating system. At the top level of the boiler there is a water outlet pipe 15, at the bottom part of the boiler there is a water inlet (return) pipe 16. The construction of the boiler provides for the function of boiler extinction. A safety valve is installed for this purpose (not in the drawing). It protects the boiler against excessive pressure. Combustion products are discharged into the ambience through the chimney 17.
Boiler operation.
The lid 3 of the fuel stocking shaft 2 is opened and the shaft is loaded with fuel. The initial air is supplied into the combustion chamber 4 through the valve in the door 6 and solid fuel is fired. Wood, solid wood waste, billets, coal, peat and sawdust briquettes, and grain can be used as solid fuel. During the lower combustion process at the grating 5, combustible gas is released. From the combustion chamber 4, combustible gas gets through the metal ring 10 into the channel 9 of the burner 7. After the combustible gas passes through the zone of the metal ring 10, it intensively expands along the hollow channel 9 of the burner 7. Heated secondary air also gets into the channel 9 of the burner 7 through the openings 12 in the inner wall. Through the opening in the outer wall 11, the secondary amount of air from the ambience first gets between the walls of the burner 7, which heat it up while it moves towards the openings of the inner walls 12. The heated air mixes with combustible gas and produces a fuel mixture. The fuel mixture combusts at a high temperature: 900 °C - 1700 °C. The heat generated by the combusted fuel mixture - heated air and combustion products - rises to the top of the boiler (shown by arrows in the drawing) and releases heat to the heat exchanger 14. Combustion products are discharged through the chimney 17.
If required for the combustion process, additional air can be supplied through the tube 13 further to the primary and secondary air supply amounts.
The solid fuel fired boiler is intended for heating small and large premises (up to 1000 m2). The construction of the boiler ensures an effective combustion process and an efficient transfer of heat to the heat exchanger. Due to the primary, secondary and additional air supply, the combustion process is intensive and stable. Besides, the technical solution of the burner ensures intensive mixing of combustible gas and heated air and a complete combustion of combustible gas at a high temperature. The advantage of the boiler is that that wet fuel can be used for heating the combustion process whereof releases gas, which burns in the combustion chamber and maintains a combustion temperature exceeding 1500 °C.

Claims

CLAIMS OF INVENTION
1. The solid fuel fired boiler with a gas burner for household use comprising a fuel stocking shaft inside the housing, a combustion chamber, a gas combustion burner, air supply elements, a heat exchanger and a chimney, is characterized by a fuel stocking shaft, where initial air is supplied through a valve in the door, directly connected to a metal burner made of double-wall housing with a hollow channel and mounted in the combustion chamber; furthermore, the housing of the burner has several openings: one opening in the outer wall of the burner housing for the secondary air supply from the space between the walls of the burner and other openings for releasing heated secondary air into the burner channel; besides, a metal ring is mounted in the burner channel, which decreases the opening for the combustible gas entering the channel.
2. The solid fuel fired boiler for household use according to claim 1 i s characterized by an additional air tube placed before the burner on the side of the fuel stocking shaft.
3. The method of gas combustion by combusting a gas mixture in the burner i s characterized by supply of a secondary amount of air from the ambience through the opening in the outer wall of the burner between the burner walls, which is heated up by the hot walls of the burner while it moves towards the openings of the inner walls and then goes out through the openings of the inner walls of the burner into the burner channel where it gets mixed with the combustible gas from the combustion chamber which has entered the burner channel through the metal ring and thus produces a fuel mixture combusted in the channel of the burner.
4. The gas combustion method according to claim 3 i s characterized by the supply of an additional amount of air through the air supply tube installed before the burner.
PCT/LT2011/000005 2010-04-29 2011-03-29 Solid fuel fired boiler with a gas burner for household use and gas combustion method WO2011136629A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LT2010037 2010-04-29
LT2010037A LT5731B (en) 2010-04-29 2010-04-29 BUITINIS KIETOJO KURO KATILAS SU DUJU DEGINIMO DEGIKLIU IR DUJU DEGINIMO BuDAS

Publications (2)

Publication Number Publication Date
WO2011136629A2 true WO2011136629A2 (en) 2011-11-03
WO2011136629A3 WO2011136629A3 (en) 2012-04-26

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PCT/LT2011/000005 WO2011136629A2 (en) 2010-04-29 2011-03-29 Solid fuel fired boiler with a gas burner for household use and gas combustion method

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WO (1) WO2011136629A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2775229A1 (en) * 2013-03-08 2014-09-10 Ulrich Brunner GmbH Oven with a heat exchanger
WO2015023169A1 (en) * 2013-08-14 2015-02-19 Уаб "Талентас" Domestic boiler operating on solid fuel of variable moisture content
IT201700019608A1 (en) * 2017-02-23 2018-08-23 Valentinotti Maurzio FOCULAR GROUP FOR BIOMASS PYROLYSIS FOR HOUSEHOLD STOVES

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LT5864B (en) 2011-05-13 2012-08-27 Kęstutis BRAUKYLA Gas generating solid fuel boiler
LT5854B (en) 2011-07-14 2012-07-25 Egidijus Kunickis Solid fuel boiler
LT6205B (en) 2014-08-12 2015-08-25 Uab "Talentas" Domestic boiler operating on solid fuel of variable moisture content

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LT2009054A (en) 2009-07-28 2010-04-26 Kęstutis BRAUKYLA Gas produced from organic materials, generator with burner and method for burning it

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH671822A5 (en) * 1987-02-09 1989-09-29 Haefliger Ag Geb Solid fuel fired boiler - has after burning chamber connected to primary combustion chamber by mixing tube
DE3833090C1 (en) * 1988-09-29 1990-04-26 Heribert 8151 Wall De Posch Burning apparatus for wood and coal
DE4034671C2 (en) * 1990-10-31 1994-06-01 Heribert Posch Burning device for wood and coal
DE4034672C1 (en) * 1990-10-31 1991-11-21 Heribert 8151 Wall De Posch
DE102006053203A1 (en) * 2006-11-09 2008-05-15 Viessmann Werke Gmbh & Co Kg Solid fuel boiler, has secondary air supply arranged from wall side of collecting channel into effective range downstream of flow tearing edge in leading manner, where channel is arranged in base of filling space
DE202010013794U1 (en) * 2010-04-09 2011-02-17 Lochmüller, Robin, Dipl.-Ing. (FH) Wood gasification boiler in the fall fire principle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LT2009054A (en) 2009-07-28 2010-04-26 Kęstutis BRAUKYLA Gas produced from organic materials, generator with burner and method for burning it

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2775229A1 (en) * 2013-03-08 2014-09-10 Ulrich Brunner GmbH Oven with a heat exchanger
WO2015023169A1 (en) * 2013-08-14 2015-02-19 Уаб "Талентас" Domestic boiler operating on solid fuel of variable moisture content
IT201700019608A1 (en) * 2017-02-23 2018-08-23 Valentinotti Maurzio FOCULAR GROUP FOR BIOMASS PYROLYSIS FOR HOUSEHOLD STOVES

Also Published As

Publication number Publication date
LT2010037A (en) 2011-02-25
WO2011136629A3 (en) 2012-04-26
LT5731B (en) 2011-06-27

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