Hydrogen heating boiler – the Japanese have been drowning houses for 10 years for 10 years

Japanese households have been subtly revolutionizing home heating for the past ten years. Japan has been at the forefront of using hydrogen boilers, a technology that is rapidly gaining popularity due to its efficiency and environmental advantages, while the majority of the world has been concentrating on more conventional heating techniques like gas or electric heating.

Hydrogen gas, a clean-burning substitute for fossil fuels like natural gas or oil, is the main fuel source for hydrogen boilers. This invention helps to lessen the effects of conventional heating techniques on climate change in addition to lowering greenhouse gas emissions. Hydrogen boilers present a promising answer to a more sustainable future, especially in light of the pressing need to switch to renewable energy sources.

The ability of hydrogen boilers to generate heat without releasing harmful pollutants like carbon dioxide or particulate matter is what makes them unique. They are therefore a desirable choice for homeowners who want to lessen their carbon footprint and are concerned about the environment. Furthermore, hydrogen boilers are simple to incorporate into pre-existing heating systems, allowing for a smooth transition to cleaner energy sources without requiring a significant amount of retrofitting.

In many parts of the world, hydrogen boilers are still relatively unknown, despite being widely used in Japan. However, interest in this cutting-edge technology is starting to increase as the global movement toward renewable energy gains momentum. By bringing attention to Japan’s hydrogen heating experience, we can learn important lessons and insights that can guide the wider adoption of clean energy solutions.

What is hydrogen

When burning, the heat produced by hydrogen, a light gas, is several times greater than that of other gases.

The primary benefit of utilizing it in a heating system is its comparatively low burning temperature of only 300 °C. This makes it possible to use gas in a boiler constructed of conventional, low-cost metal types.

The gas itself has no color or smell, and it doesn’t combine with other chemicals to create toxic substances that are bad for people’s health. Its use in daily life is therefore very safe. Its elevated level of explosion hazard is the only threat.

An account of using hydrogen to heat a home

An explosion could happen if gas is used improperly or if it comes into contact with an open fire source.

Description

Insert the nozzle into the boiler under the heat exchanger, pour water into the tank, which comes with the device-the water splitter, include the device in the rosette and only 300-900 watts heel up to 80 kV. m dwelling. Gas from the water has a huge heat performance, 3,500 degrees Celsius, does not require ventilation, since only overheated steam forms when combustible. In a room where there is only one room, you can use the nozzle as a convector – in an open form. In 20 min. The room will become warm and comfortable. The gas output is regulated by current force. Power – 220AS/12DC water generator can be used for domestic use. There is a gas burner in the kit.Technical characteristics of the plates NI -99.8%voltage 220V. 1000 Gas Watter 1.5 Cube.m/h (equivalent to heat capacity 5 cubic meters.m methane) Dist consumption. Water 300-500 g/chraniya- 1 year or sir of operation- 10 years. We offer to purchase a power controller in the block comprehensive for the absolute obstacle to the destruction of the plates.Guarantee 1 year

Hydrogen prospects as a fuel for a heating boiler

• Hydrogen is the most common “fuel” in the universe and the tenth in distribution of the chemical element on Earth. Simply put, you will not have problems with fuel reserves.
• This gas cannot harm either to people, animals, or plants – it is not toxic.
• The "exhaust" of the hydrogen boiler is absolutely harmless – the product of combustion of this gas is ordinary water.
• The hydrogen burning temperature reaches 6,000 degrees Celsius, which indicates a high heat capacity of this type of fuel.
• Hydrogen is 14 times easier, that is, with a leak of “ejecting” the fuel will disappear from the boiler room by itself, and in a very short time.
• The cost of one kilogram of hydrogen is $ 2-7. In this case, the density of gaseous hydrogen is 0.008987 kg/m3.
• Heat -free ability of a cubic meter of hydrogen – 13,000 kJ. The energy intensity of natural gas is three times higher, but the cost of hydrogen like fuel is ten times lower. As a result, alternative heating of a private house with hydrogen will cost no more than the practice of using natural gas. At the same time, the owner of the hydrogen boiler does not need to pay for the appetites of the owners of gas companies and build an expensive gas pipeline, as well as to undergo an extremely bureaucratic procedure for coordinating all kinds of “projects” and “permits”.

To put it succinctly, the aerospace industry has already recognized that using hydrogen fuel for "refueling" missiles has the most promising future.

Modern innovation: boiler that heats with hydrogen

How the heating boiler works on hydrogen

Similarly to a typical gas boiler:

• Fuel is supplied to the burner.
• The torch of the burner warms the heat exchanger.
• The coolant flooded into the heat exchanger is transported to the batteries.

Hydrogen generators are the only specialized installations required for fuel production, as opposed to a main gas pipeline or containers holding liquefied combustible.

Furthermore, the most popular kind of generator for a home is an electrolytic setup, which separates water into hydrogen and oxygen. Fuel produced by electric generators to heat hydrogen is expensive, costing between $6 and $7 per kilogram. In addition, 1.2 kW of electricity and water are needed to produce one cubic meter of combustible gas.

But in this instance, you can save money on the combustion product removal. In fact, the only substance released during the combustion of an oxygen and air mixture is water vapor. Thus, a "real" chimney is not necessary for such a boiler.

Pros of hydrogen boilers

• Hydrogen can be "drowned" any boilers. That is, absolutely any-even the old "Soviet" units acquired in the 80s of the last century. To do this, you will need a new burner and granite or chamotum stone in a firebox that increases thermal inertia and the leveling effect of the boiler overheating.
• In hydrogen boilers, increased thermal power. Standard gas boiler for 10-12 kW on hydrogen "Issues" up to 30-40 kilowatts of thermal capacity.
• By a large account heating, only a burner is needed. Therefore, “under hydrogen” can even be converted even a solid fuel boiler, installing the burner on the furnace.
• The base for receiving fuel – water – can be removed from the tap tap. Although the ideal semi -finished product for the production of hydrogen is distilled water, in which sodium hydroxide is mixed.

Cons of hydrogen boilers

• Small range of hydrogen boilers and gas generators of industrial type. Most sellers offer "homemade" with dubious certification.
• High price of industrial models.
• Explosive “nature” of fuel – in a mixture with oxygen (in a proportion of 2: 5) hydrogen turns into explosive gas.
• High level of noise of gas generating plants.
• High flame temperature – up to 3200 degrees Celsius, which impedes the use of hydrogen as fuel for the kitchen furnace (we need special cutters). However, h₂YDROGEM – a heating boiler for Italian hydrogen production Giacomini – is equipped with a burner with a flame temperature of up to 300 degrees Celsius.

Hydrogen for home

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100 – 700 m³ Daewoo hydrogen gas kites

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A prime example of a contemporary turbocharged boiler is the Daewoo boiler.

Additional Information

• Guarantees:

Compact dimensions, ease of installation and use where there is no specially equipped boiler room, make this device optimal for heating and hot water supply of an apartment or a small house. The capacity of the boiler is from 11.6 kW to 50 kW. It grabs it to heat an area from 120 m2 to 500 m2. Gas boilers of serial, factory production, but adapted for hydrogen fuel work. When remaking the boiler, factory electronics and the ability to automatically work remains without change. Changes in the factory structure relate to the exclusively closed combustion chamber, the system of preparation of the combustible mixture and gas consumption is subject to replacement. This hydrogen heating boiler works paired with a hydrogen gas generator which is a source of domestic gas.

Different types of double-circuit hydrogen boilers

DGB – 100 MSC Daewoo

DGB – 130 MSC Daewoo

DGB – 160 MSC Daewoo

• Modern design
• Compact sizes
• Great price
• High efficiency
• Reliable copper heat exchanger
• Economy
• Simplicity of operation
• Sustainable work at low gas pressure

Length, mm:	369
Width, mm:	490
Height, mm:	626
Depth, mm:	369
Weight, kg:	35
Color:	white
Manufacturers:	Daewoo
Equipment:	remote control / fastener / passport
Power, kWt:	from 11 to 50
Heated area, m²:	from 100 to 500
Fuel used:	Gas Propan-Vodorod
Efficiency, %: natural gas	92
Efficiency, %: natural hydrogen	98
Efficiency,%: natural gas 5% + hydrogen 95%	99
The diameter of the chimney, mm:	80
Diameter of the gas input pipe, inches:	3/4
Diameter of the input/output pipe of the DIS, inches:	1/2
The diameter of the input/output of heating, inches:	3/4
The maximum pressure in the heating circuit, kg/cm²:	0.3
The maximum pressure in the DHW circuit, kg/cm²:	0.7
Electric power consumption, W:	140
Type of combustion chamber:	Closed
Boiler type:	turbocharged
Application:	Heating and DHW
Power:	220/50 V/Hz
The maximum temperature of heating water, ° C:	from 85 to 250
Customizable temperature of heating water, ° C:	40-85
Hot water production, kW:	46.5
Customizable temperature of the hot water, ° C:	35-60

Updated Wednesday, September 09, 2015 at 10:38 a.m.

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DIY heating

Hydrogen heating boilers are not manufactured in large quantities anymore, and obtaining one is a challenging task. In order to acquire such a device, you will probably need to place a special order or arrange for the supply of equipment from Italy, the country where the boiler was created. However, because of their high cost, this method is not appropriate for many users. You can think about building a boiler by hand as a solution to this problem.

Production of the generator

Building a hydrogen generator is a prerequisite for building a hydrogen boiler:

1. At the first stage, it is necessary to cut 16 rectangles with a size of 50×50 cm from a sheet of stainless steel.
2. One of the corners of the cut parts must be cut off.
3. With the help of a drill in the opposite diagonal corner, a hole is made.
4. The assembly of the structure is made of plates and two bolts. Two goals should be tightened on one bolt and place them on both sides of the plate. Expand the second plate so that the cut end is at the bolt, then fix it on the second bolt so that it is above the first plate. Further, between the two plates you need to leave a strip of transparent plastic with a length of 1 mm. The remaining rectangles are fixed in a similar way.
5. In a plastic container, you need to make slots for bolts.
6. The structure collected from the plates must be inserted into the container.
7. Two holes are made in the lid: one pipe is fixed in one, and the other is created to fill water with dissolved salts.
8. Check the operation of the device.

Based on its reputation as a clean and safe energy carrier, hydrogen heating is a fully functional and efficient method.

Production of the boiler

The following steps are involved in creating a hydrogen boiler:

• It is necessary to take a 20×20 mm profile pipe and cut off 8 equal parts from it with a length of 30 cm;
• Next, take a profile pipe 40×40 mm and cut off 3 pieces, the length of one should be 20 cm, and two other – 8 cm;
• In a long pipe, you need to make two slots in the middle of the opposite sides, size 40×40 m. To weld 2 segments 8 cm to these holes;
• As a result, a cross is formed, at three ends of which plugs are welded, and at the fourth end the plug with a pipe is fixed to join the hydrogen mixture pipe;
• At each end of the structure, it is necessary to make one hole with a diameter of 1-1.5 cm, after making the indentation from the center of the cross 7-8 cm, the holes of the total should turn out 4;
• They are welded to them and the nozzles are fixed, which are often possessed by boilers on propane;
• The next process will be – welding to Krestovin 8 pieces of a profile pipe with dimensions of 20×20 cm;

DIY boiler

then you need to cut 3 squares from leafy metal. In two of them, make 4 holes, the diameter in one should be 2-3 cm, in the other-1 cm;
Cut the pipe with a diameter of 2-3 cm into segments with a length of 50-60 cm. Then attach them to the square with smaller holes and weld to it.
In a pipe with a diameter of 20 cm, make two holes: one below, the other at the top;
Next, the pipe must be welded to the square with smaller slots;
The resulting structure must be turned upside down and put a second square. The tubes should enter the hole, and at the same time, the square must fit to the larger pipe in diameter, the square and tube to cook;
The process of welding the square and the structure itself is made by a burner: to the two holes on the case, you must weld the roller nozzles for the return of the coolant;
then the boiler is checked for tightness;
and, at the last stage, it is necessary to make a protective case in which the boiler will be hidden.

As a result, after following all of the above guidelines, you will have a hydrogen boiler.

Despite their many benefits and ease of use, hydrogen boilers are not yet widely available. Nonetheless, they are quickly taking over the market for heating equipment, and their applications are virtually limitless.

Popular models of hydrogen units for the heating system

Kingkar3000, a Chinese generator

Creating Brauna Gas, which is a two-to-one mixture of hydrogen and oxygen. Additionally, the user can modify the percentage of the components in the fuel mixture by adjusting the torch temperature between 800 and 3200 degrees Celsius.

Generators of fuel mixtures for heating hydrogen

Stars 2000 and 1000

Show off the qualities listed below:

• Water consumption – from 0.7 to 1.1 liters per hour or 5.5 liters per day.
• Fuel generation – from 1.2 to 2.0 m3/hour.
• The estimated period of operation – at least 15 years.
• Energy consumption – from 1.2 to 3 kW.
• Heated area – up to 250 square meters.
• Price – up to 230,000 rubles.

STAR-1 boiler for hydrogen.1

When used in conjunction with the Star 2000 generator:

• Thermal power – 27 kW
• Energy consumption – 300 W/hour.
• The number of contours – one heating + one hotel, installed for a fee.
• Price -63 -73 thousand rubles.

We also advise you to see:

• Liquid fuel home boilers
• How to connect a gas double -circuit boiler?
• How to choose a solid fuel boiler for giving?
• Single -circuit gas boilers of heating for home

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Service information

The hype surrounding hydrogen heating boilers is making waves in the home insulation and heating industries. These boilers are causing a stir because of their environmentally friendly design, with Japan having led the way for more than ten years. These boilers promise a sustainable future for homeowners while also lowering carbon emissions by utilizing hydrogen, a clean and plentiful energy source. With worries over climate change growing, the use of hydrogen heating boilers is a big step in the direction of living more sustainably. Adopting developments like these could open the door to more eco-friendly and efficient homes as technology develops.

Hydrogen in the heating system

Although hydrogen has many advantageous properties, including being environmentally friendly and having a high heat capacity, it is not found in nature in its pure form. It is produced by electrolyzing regular water to produce hydrogen and oxygen in a specially designed boiler. Water and electricity are therefore the two essential parts of the heating system. The term "explosive mixture" refers to the gas mixture that is produced during the electrolysis process. This moniker is entirely appropriate given that gas can cause an explosion with just a tiny spark.

Take a closer look at the process of turning hydrogen into energy. Since this gas is produced by electrolyzing water, as was previously mentioned, special equipment is needed to create it. This equipment consists of a container that metal plates filled with water are submerged in. Following the application of a specific frequency current along the plates, hydrogen and oxygen are released; however, they are not released pure; rather, they are combined with water steam, which is a byproduct of the electrolysis process. The gas mixture is run through a chemical separator, which can separate hydrogen from other impurities, in order to separate steam and isolate hydrogen.

The resulting hydrogen is fed into a burner that has a valve installed to stop it from moving in the other direction and avoid an explosion. Oxygen and steam are redirected via a unique container. Water level indicators and pressure sensors are built into the device itself. In the event that the water level is not appropriate, modern models automatically stop the electrolysis and current supply processes to prevent harmful reactions.

Comprehensive information about using hydrogen to heat a home

The only maintenance required on your part is the occasional addition of water to the system. The features of the hydrogen heating system are finished on this.

Technical components of the installation for heating

The hydrogen heating system has a very straightforward design with just two structural components:

The most crucial component in the process of producing hydrogen is the boiler. The boiler has useful components like:

• Electrolyzer – a device where the electrolysis reaction itself actually occurs, as a result of which water breaks up into oxygen and hydrogen. Its cavity is filled with water, in which metal plates are placed with the highest current conductivity. Special wiring is connected to them, according to which the current is supplied.
• Burner valve – located at the top of the device, so that the resulting gas is easier to overcome the barrier and enter the burner directly.
• The burner is an element in which the spark is supplied and the gas obtained begins to burn, releasing heat.

Pipes: They guarantee the flow of heat by means of heat heating, enabling you to warm your entire home.

The Japanese have been using hydrogen heating boilers for the past ten years, and this is a big step in the fight against climate change and carbon emissions. Homeowners can efficiently heat their homes while reducing their carbon footprint by using hydrogen as a clean energy source.

The fact that hydrogen boilers are compatible with current infrastructure is one of their main advantages. For many households, switching to hydrogen heating is relatively simple because it can make use of the same pipelines and distribution networks as natural gas boilers. This implies that homeowners don’t have to spend money on pricey infrastructure upgrades in order to make the switch.

Moreover, boilers that use hydrogen for heating present a viable way to lessen dependency on fossil fuels. Using a clean and sustainable energy source for heating allows households to further reduce their environmental impact as renewable hydrogen sources become more widely available and more reasonably priced.

Nonetheless, addressing the difficulties posed by the widespread use of hydrogen heating technology is crucial. This includes resolving issues with hydrogen production and distribution as well as guaranteeing the security of the infrastructure supporting hydrogen. Furthermore, more investigation and development are required to raise the cost and efficiency of hydrogen boilers.

To sum up, the Japanese experience with hydrogen heating boilers is a motivational illustration of how cutting-edge technology can promote environmental advancement. In order to reduce greenhouse gas emissions and create a more sustainable future, homeowners can make a significant contribution by adopting hydrogen as a clean energy source for heating.

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