JP2002349081A - Building with built-in fuel cell - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building with a built-in fuel cell, which eliminates a hitch even if heat, water vapor and the like are generated, prevents a reduction in living space and prevents the fuel cell from being a hindrance, when the fuel cell is installed in the building such as a dwelling. SOLUTION: The fuel cell 3 is installed inside a building foundation 2 near a vent hole 21 provided in the building foundation 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a building incorporating a fuel cell.

[0002]

2. Description of the Related Art Conventionally, as a building provided with a fuel cell, a co-generation method described in JP-A-8-287932. This cogeneration method is
A fuel cell installed outside of a building that uses the power obtained by this fuel cell in the building, and at the same time uses the heat generated by this fuel cell and the reformer attached to this fuel cell in the building It is.

[0003]

However, the above cogeneration method has a large fuel cell and a large reformer attached to the fuel cell, and is used for buildings such as offices. Since it requires a large installation space, it is not suitable for small buildings such as houses. Further, since the fuel cell is installed outdoors, the fuel cell is exposed to wind and rain, which may cause the fuel cell to malfunction.

[0004] Therefore, the above cogeneration method was reduced in size to make it easy to install in a building such as a house, and installed indoors. However, the temperature of the fuel cell and the reformer becomes high, and the gas such as steam and carbon dioxide gas is used. It was found that it was difficult to install indoors because of the large amount of odors.

[0005] That is, when the temperature of the fuel cell or the reforming device becomes high, the temperature in the room becomes high, and it becomes difficult to live in summer or the like.
To solve this with a cooling device, a large-sized cooling device is required, which is inconvenient. Also, when water vapor is generated from the fuel cell, the room is filled with moisture, the futons and furniture are moistened with moisture, and in winter, there is a problem that dew condensation occurs in the building. May be generated in large quantities, and the room may be filled with carbon dioxide gas and choking may occur. In order to solve this, it is inconvenient to constantly drive the ventilation fan even in winter.

Further, when the fuel cell and the reforming device are installed indoors, there is a problem that the living space in the building becomes small and the fuel cell and the reforming device become obstructive. Thus, an object of the present invention is to provide a fuel cell installed in a building such as a house or the like, where there is no problem even if heat or steam is generated, the living space is reduced, or the fuel cell is obstructed. Must not provide a fuel cell built-in building.

[0007]

Means for Solving the Problems The present invention has been made to achieve the above object, and the invention according to claim 1 supplies hydrogen to a fuel cell to generate electric power, and further comprises the steps of: A fuel cell-incorporated building utilizing the obtained electric power in the building, wherein the fuel cell is installed inside the building foundation near a ventilation hole provided in the building foundation.

According to a second aspect of the present invention, there is provided a fuel cell built-in building which supplies hydrogen to the fuel cell to generate electric power and uses electric power obtained from the fuel cell in the building.
The building is provided with a space provided with an opening below the entrance porch or entrance step, and the fuel cell is installed in the space provided below the entrance porch or entrance step. It is.

According to a third aspect of the present invention, there is provided a fuel cell built-in building which supplies hydrogen to the fuel cell to generate electric power and uses electric power obtained from the fuel cell in the building.
The building has an edge, and the fuel cell is installed below the edge.

According to a fourth aspect of the present invention, there is provided a fuel cell-incorporated building that supplies hydrogen to the fuel cell to generate electric power and uses the power obtained from the fuel cell in the building.
The building is provided with a bay window having a bay window floor, and the fuel cell is installed below the bay window floor.

According to a fifth aspect of the present invention, there is provided the fuel cell according to any one of the first to fourth aspects, wherein the fuel cell includes a reformer for supplying hydrogen generated by reforming hydrocarbon or alcohol to the fuel cell. It is attached.

The fuel cell used in the present invention is not particularly limited. That is, the fuel cell includes a phosphoric acid fuel cell, a solid molecular fuel cell, a molten carbonate fuel cell, and the like, and any of the fuel cells used in the present invention may be used.
In addition, in order to use the power generated by this fuel cell in a building such as a house, an inverter or a distribution board is required, but such devices other than the fuel cell are used together with the fuel cell. Alternatively, a relatively small device such as an inverter may be mounted at an appropriate place in a building.

The hydrogen to be supplied to the fuel cell according to any one of claims 1 to 4 may be supplied by packing it in a hydrogen cylinder or the like or absorbing it with a hydrogen absorbing metal or the like. As such, a reformer is provided in parallel, and hydrocarbons and alcohols are supplied to the reformer, and the hydrocarbons and alcohols are decomposed by the reformer to generate hydrogen, and the hydrogen is supplied. Then, it is safe and preferable. The hydrocarbon may be city gas, propane gas, or petroleum such as gasoline.

Further, when the heat generated from the fuel cell and the reforming device are installed, the heat generated from the reforming device is used for hot water, cooling and heating as described in the above-mentioned publication. You may. In addition, the power generated by the fuel cell is used in the building. In the building, there are times when the power is frequently used and times when the power is low. Therefore, the surplus power should be sold to a power company.

(Function) According to the first aspect of the present invention, since the fuel cell is installed inside the building foundation near the ventilation hole provided in the building foundation, the fuel cell is not exposed to wind and rain. . Therefore, malfunction does not occur due to wind and rain. In addition, since heat and water vapor generated from the fuel cell go outside through the vent, the inside of the building does not become hot and the building does not fill with water vapor. The heat generated at this time may be used for hot water supply, cooling and heating, and the like.

Further, hydrogen or the like can be supplied to the fuel cell from the vent, and maintenance of the fuel cell can be performed from the vent. In addition, since the fuel cell is installed inside the foundation of the building, the inside of the building is not narrowed by the fuel cell, so that the living space of the building is not reduced and the fuel cell does not interfere.

According to the second aspect of the invention, the building is provided with a space having an opening below the entrance porch or the entrance step, and the fuel cell is provided below the entrance porch or the entrance step. Since the fuel cell is installed in the space, the fuel cell is not exposed to the weather. Therefore, malfunction does not occur due to wind and rain. Further, since heat and water vapor generated from the fuel cell exit from the lower part of the entrance porch or the entrance step to the outside through the opening, the inside of the building does not become hot, and the water vapor is not filled in the building. The heat generated at this time may be used for hot water supply, cooling and heating, and the like.

Further, hydrogen or the like can be supplied to the fuel cell from outside through the opening, and maintenance of the fuel cell can be performed from the opening in this space. Further, since the fuel cell is provided in the space provided below the entrance porch or the entrance step, the inside of the building is not narrowed by the fuel cell, and therefore the living space of the building is not reduced, This fuel cell does not get in the way.

According to the third aspect of the present invention, the building is provided with an edge, and the fuel cell is installed below the edge, so that the fuel cell is not exposed to wind and rain. Therefore, malfunction does not occur due to wind and rain. In addition, heat and water vapor generated from the fuel cell go outside from under the edge,
The building does not heat up and the building is not filled with water vapor. The heat generated at this time may be used for hot water supply, cooling and heating, and the like.

In addition, hydrogen and the like can be supplied to the fuel cell from outside, and maintenance of the fuel cell can be performed from outside. Also, since the fuel cell is provided below the edge,
The interior of the building is not narrowed by the fuel cell, so that the living space of the building is not reduced and the fuel cell is not in the way.

According to the fourth aspect of the present invention, the building is provided with a bay window having a bay window floor, and the fuel cell is installed below the bay window floor, so that the fuel cell is exposed to wind and rain. Nothing. Therefore, malfunction does not occur due to wind and rain. Further, since heat and water vapor generated from the fuel cell exit from the lower side of the bay window floor, the inside of the building does not become hot and the building is not filled with water vapor. The heat generated at this time may be used for hot water supply, cooling and heating, and the like.

In addition, hydrogen and the like can be supplied from outside to the fuel cell below the window floor, and maintenance of the fuel cell can be performed from outside. Further, since the fuel cell is provided below the floor of the bay window, the inside of the building is not narrowed by the fuel cell, so that the living space of the building is not reduced and the fuel cell is not obstructed.

According to a fifth aspect of the present invention, there is provided the fuel cell according to any one of the first to fourth aspects, wherein the fuel cell includes a reformer for supplying hydrogen generated by reforming hydrocarbon or alcohol to the fuel cell. Since the heat and carbon dioxide gas generated from the reforming device is output together with the heat and water vapor generated from the fuel cell according to claims 1 to 4, the temperature in the building does not become high. And the building is not filled with water vapor. The heat generated at this time may be used for hot water supply, cooling and heating, and the like.

Further, hydrocarbons, alcohols and the like may be used as claimed in claim 1.
The hydrogen can be supplied in the same manner as the hydrogen supplied to the fuel cell described above, and the maintenance of the reformer can be performed in the same manner as the maintenance of the fuel cell. In addition, since the reforming device is provided alongside the fuel cell, the inside of the building is not narrowed by the reforming device, so that the living space of the building is not reduced and the reforming device does not interfere.

[0025]

Next, embodiments of the present invention will be described with reference to examples. (Embodiment 1) FIG. 1 shows one embodiment of the present invention and is a cross-sectional view of a building in which a fuel cell is installed.

In FIG. 1, reference numeral 1 denotes a building. Reference numeral 2 denotes a building foundation, and the building foundation 2 is provided with a vent 21. 3 is a fuel cell. 4 is a reformer. The fuel cell 3 and the reformer 4 are installed inside the building foundation 2 near the vent 21.

The reformer 4 is connected to a gas pipe (not shown), and reforms the city gas hydrocarbon supplied from the gas pipe with the reformer 4 to generate hydrogen. The high-purity hydrogen is supplied to the fuel cell 3 through the hydrogen separation and permeable membrane. Then, when hydrogen supplied from the reformer 4 is chemically reacted with oxygen in the air in the fuel cell 3, electricity is generated. The generated electricity is converted into alternating current by an inverter (not shown) and supplied to electric appliances and the like in the building 1 through a switchboard (not shown) provided on the wall of the building 1 and consumed. Sold.

The switchboard is provided with a system connecting device and a breaker for linking commercial power supplied from a power company and power from a fuel cell. When the reformer 4 reforms hydrocarbons to generate hydrogen, heat is generated at the same time as carbon dioxide gas is generated. When reacting hydrogen and oxygen in the fuel cell 3, heat and steam are generated.
The heat, carbon dioxide gas, and water vapor generated at this time go outside through the vent 21.

The water generated by the fuel cell 3 and the reformer 4 may be used to heat water and store it as hot water in a hot water storage tank, which may be used for floor heating, bathing, housework, and the like. ,
Further, the cooling / heating device may be moved by this heat and used for cooling / heating the building 1.

Next, the use situation and operation of this fuel cell will be described. The fuel cell 3 and the reformer 4 are installed inside the building foundation 2 near the vent 21, piping is provided to supply the city gas to the reformer 4, and the fuel cell 3 and the inverter are connected. When the city gas is supplied to the reformer 4, the hydrocarbon of the city gas is reformed by the reformer 4 to generate hydrogen, and the hydrogen is supplied to the fuel cell 3,
It reacts with oxygen in the air to generate electricity. This electricity is consumed in the building 1 through an inverter, or surplus electricity is sold to a power company.

As described above, the fuel cell 3 and the reformer 4
Since the fuel cell 3 and the reformer 4 are installed inside the building foundation 2 in the vicinity of the vent 21, the fuel cell 3 and the reformer 4 are not exposed to wind and rain. Therefore, the fuel cell 3 does not malfunction due to wind and rain.
Further, heat, steam generated from the fuel cell 3 and the reformer 4,
Since the carbon dioxide gas exits through the vent 21, the inside of the building 1 does not become hot, and the building 1 is not filled with water vapor or carbon dioxide gas.

Hydrocarbon can be supplied to the reformer 4 from the vent 21, and hydrogen can be supplied to the fuel cell 3 from the reformer 4. Further, maintenance of the fuel cell 3 and the reformer 4 can be performed from the vent 21. Further, since the fuel cell 3 and the reforming device 4 are installed inside the building foundation 2, the inside of the building 1 is not narrowed by the fuel cell 3 and the reforming device 4, so that the living space of the building 1 is small. The fuel cell 3 and the reformer 4 do not interfere.

(Embodiment 2) FIG. 2 shows another embodiment of the present invention and is a sectional view of a building in which a fuel cell is installed.

In FIG. 2, reference numeral 1a denotes a building. 5a
Is a door, and a door 51a is provided at the door 5a, and a door porch 52a and a door step 53a are provided in front of the door 51a. And this entrance porch 5
2a and the entrance step 53a have an opening 551a on the lower side.
Is provided.

3a is a fuel cell. The fuel cell 3a and the reformer 4a are located in a space 55a.
a. Similar to the first embodiment, the reformer 4a is connected to a gas pipe (not shown), and converts the city gas hydrocarbon supplied from the gas pipe to the reformer 4a.
To generate hydrogen, and the generated hydrogen is converted into high-purity hydrogen through a hydrogen separation and permeable membrane, and the high-purity hydrogen is supplied to the fuel cell 3a.

When hydrogen supplied from the reformer 4a undergoes a chemical reaction with oxygen in the air in the fuel cell 3a, electricity is generated. The generated electricity is converted into alternating current by an inverter (not shown), supplied to electric appliances and the like in the building 1a through a switchboard (not shown) provided on the wall of the building 1a, and consumed, and excess electric power is transmitted to an electric power company. Sold. The switchboard is provided with a system connection device and a breaker for linking commercial power supplied from a power company and power from a fuel cell.

When hydrogen is generated by reforming hydrocarbons in the reformer 4a, heat is generated at the same time as carbon dioxide gas is generated. When reacting hydrogen and oxygen in the fuel cell 3a, heat and steam are generated. Heat generated at this time,
Carbon dioxide gas and water vapor go outside through the opening 551a.

The water generated by the fuel cell 3a and the reformer 4a may be used to heat water and store it as hot water in a hot water tank, and use the hot water for floor heating, bathing, housework, and the like. Alternatively, the cooling / heating device may be moved by this heat and used for cooling / heating the building 1a.

Next, the use situation and operation of this fuel cell will be described. The fuel cell 3a and the reformer 4a are installed in the space 55a provided below the entrance porch 52a and the entrance step 53a, and piping is provided so that city gas can be supplied to the reformer 4a. Connect to inverter. When the city gas is supplied to the reforming device 4a, the hydrocarbon of the city gas is reformed by the reforming device 4a to generate hydrogen. The hydrogen is supplied to the fuel cell 3a and reacts with oxygen in the air. Then, electricity is generated. This electricity is consumed in the building 1a through an inverter, or surplus electricity is sold to a power company.

As described above, the fuel cell 3a and the reformer 4a
The entrance porch 52a of the building 1a and the entrance step 53a
The fuel cell 3a and the reformer 4a are not exposed to the wind and rain because they are installed in the space 55a provided below. Therefore, the fuel cell 3a does not malfunction due to wind and rain. Further, heat, steam, and carbon dioxide generated from the fuel cell 3a and the reformer 4a are supplied to the opening 551a of the space 55a.
The building 1 does not get hot,
a is not filled with water vapor or carbon dioxide gas.

Hydrocarbon can be supplied to the reformer 4a from the opening 551a of the space, and hydrogen can be supplied to the fuel cell 3a from the reformer 4a. Further, maintenance of the fuel cell 3a and the reformer 4a can be performed from the opening 551a. Also, since the fuel cell 3a and the reformer 4a are installed in the space 55a provided below the entrance porch 52a and the entrance step 53a of the building 1a, the building 1a
The interior is not narrowed by the fuel cell 3a and the reforming device 4a, and therefore, the living space of the building 1a is not reduced,
The fuel cell 3a and the reformer 4a do not interfere.

(Embodiment 3) FIG. 3 shows another embodiment of the present invention and is a sectional view of a building in which a fuel cell is installed.

In FIG. 3, reference numeral 1b denotes a building. 6b is an edge side. 3b is a fuel cell. Reference numeral 4b denotes a reformer, and the fuel cell 3b and the reformer 4b are installed below the edge 6b. Similar to the first embodiment, the reformer 4b is connected to a gas pipe (not shown), and reforms the city gas hydrocarbon supplied from the gas pipe with the reformer 4b to generate hydrogen. The generated hydrogen is converted into high-purity hydrogen through a hydrogen separation / permeable membrane, and the high-purity hydrogen is supplied to the fuel cell 3b.

When hydrogen supplied from the reformer 4b is chemically reacted with oxygen in the air in the fuel cell 3b, electricity is generated. The generated electricity is converted into alternating current by an inverter (not shown), supplied to appliances and the like in the building 1b through a switchboard (not shown) provided on the wall of the building 1b, and is consumed. Sold. The switchboard is provided with a system connection device and a breaker for linking commercial power supplied from a power company and power from a fuel cell.

When hydrogen is generated by reforming hydrocarbons in the reformer 4b, heat is generated at the same time as carbon dioxide gas is generated. When reacting hydrogen and oxygen in the fuel cell 3b, heat and steam are generated. Heat generated at this time,
Carbon dioxide gas and water vapor go out through the vent 21b.

The water generated by the fuel cell 3b and the reformer 4b may be used to heat water and store it in a hot water storage tank as hot water, which may be used for floor heating, bathing, housework, and the like. Alternatively, the cooling / heating device may be operated by the heat to be used for cooling / heating the building 1b.

Next, the use situation and operation of this fuel cell will be described. The fuel cell 3b and the reformer 4b
The fuel cell 3b and the inverter are connected to each other by being installed below the lower side of the fuel cell 3b so as to supply city gas to the reformer 4b. When the city gas is supplied to the reforming device 4b, hydrocarbons are reformed in the city gas by the reforming device 4b to generate hydrogen. The hydrogen is supplied to the fuel cell 3b, and oxygen in the air and The reaction generates electricity. This electricity is consumed in the building 1b through an inverter, or surplus electricity is sold to a power company.

As described above, the fuel cell 3b and the reformer 4b
Is installed under the edge 6b of the building 1b, so that the fuel cell 3b and the reformer 4b are not exposed to the weather. Therefore, the fuel cell 3b does not malfunction due to wind and rain. Also, heat generated from the fuel cell 3b and the reformer 4b,
Since the steam and the carbon dioxide gas go outside, the inside of the building 1b does not become hot and the building 1b is not filled with the steam and the carbon dioxide gas.

[0049] Reforming device 4 for hydrocarbons of city gas from outside
b, and hydrogen is supplied from the reformer 4b to the fuel cell 3b.
Can be supplied. Also, the fuel cell 3b and the reformer 4
b. Maintenance can be performed. In addition, fuel cell 3
Since the fuel cell 3b and the reformer 4b are installed below the edge 6b of the building 1b, the interior of the building 1b is not narrowed by the fuel cell 3b and the reformer 4b, and therefore, the living space of the building 1b does not become smaller. , The fuel cell 3b and the reformer 4b
Does not get in the way.

(Embodiment 4) FIG. 4 shows still another embodiment of the present invention and is a sectional view of a building in which a fuel cell is installed.

In FIG. 4, reference numeral 1c denotes a building. 7c is a bay window, and 71c is a bay floor of the bay window 7c. 3c is a fuel cell. Reference numeral 4c denotes a reformer, and the fuel cell 3c and the reformer 4c are provided below the bay window floor 71c. Similar to the first embodiment, the reformer 4c is connected to a gas pipe (not shown), and reforms the city gas hydrocarbon supplied from the gas pipe to generate hydrogen by the reformer 4c. Then, the generated hydrogen is converted into high-purity hydrogen through a hydrogen separation and permeable membrane, and the high-purity hydrogen is supplied to the fuel cell 3c.

When hydrogen supplied from the reformer 4c is chemically reacted with oxygen in the air in the fuel cell 3c, electricity is generated. The generated electricity is converted into alternating current by an inverter (not shown), supplied to electric appliances and the like in the building 1c through a switchboard (not shown) provided on the wall of the building 1c, and consumed, and excess power is sold to a power company. Is done. The switchboard is provided with a system connection device and a breaker for linking commercial power supplied from a power company and power from a fuel cell.

When hydrogen is generated by reforming hydrocarbons in the reformer 4c, heat is generated at the same time as carbon dioxide gas is generated. When reacting hydrogen and oxygen in the fuel cell 3c, heat and steam are generated. The heat, carbon dioxide gas, and water vapor emitted at this time go outside from below the bay window floor 71c.
The water generated by the fuel cell 3c and the reformer 4c may be used to heat water and store it as hot water in a hot water storage tank, and this hot water may be used for floor heating, bathing, housework, etc. The cooling / heating device may be moved by this heat and used for cooling / heating the building 1c.

Next, the use situation and operation of this fuel cell will be described. The fuel cell 3c and the reforming device 4c are installed below the bay window floor 71c, and pipes are provided to supply the city gas to the reforming device 4c, and connect the fuel cell 3c and the inverter. Then, when city gas is supplied to the reformer 4c, the hydrocarbon of the city gas is reformed by the reformer 4c to generate hydrogen, and this hydrogen is supplied to the fuel cell 3c and reacts with oxygen in the air. Then, electricity is generated. This electricity is consumed in the building 1c through an inverter, or surplus electricity is sold to a power company.

As described above, the fuel cell 3c and the reformer 4c
Is installed under the bay window floor 71c of the building 1c, so that the fuel cell 3c and the reformer 4c are not exposed to the weather. Therefore, the fuel cell 3c does not malfunction due to wind and rain. Further, since the heat, steam, and carbon dioxide generated from the fuel cell 3c and the reformer 4c exit from the lower side of the bay floor 71c, the inside of the building 1c does not become hot, and the building 1c is filled with steam and carbon dioxide. do not do.

The reformer 4 converts hydrocarbons of city gas from outside.
c, and hydrogen is supplied from the reformer 4c to the fuel cell 3c.
Can be supplied. Also, the fuel cell 3c and the reformer 4
c can be maintained. In addition, fuel cell 3
Since the fuel cell 3c and the reforming device 4c are installed below the bay window floor 71c of the building 1c, the inside of the building 1c is not narrowed by the fuel cell 3c and the reforming device 4c, so that the living space of the building 1c is small. The fuel cell 3c and the reforming device 4c do not interfere.

[0057]

As described in detail above, according to the first aspect of the present invention, since the fuel cell is installed inside the building foundation near the ventilation hole provided in the building foundation, the fuel cell is protected Does not cause malfunctions, and the heat and water vapor generated from this fuel cell go outside, the inside of the building does not become hot, the building does not fill with water vapor, and hydrogen and the like are released from the vent. The fuel cell can be supplied, the fuel cell can be maintained from this vent, and the inside of the building will not be narrowed by the fuel cell, so that the living space of the building will not be reduced and the fuel cell will be in the way. No.

According to a second aspect of the present invention, in the building, a space having an opening below the entrance porch or the entrance step is provided in front of the entrance door, and the fuel cell is provided under the entrance porch or the entrance step. Because it is installed in the space provided on the side, the fuel cell does not malfunction due to wind and rain, and the heat and steam generated from this fuel cell go outdoors and the inside of the building does not become hot Then, the building is not filled with water vapor, hydrogen can be supplied from outside to the fuel cell through the opening in the space below the entrance porch or entrance step, and maintenance of the fuel cell can be performed from the opening in this space. This can be done and the interior of the building is not narrowed by the fuel cell, so that the living space of the building is not reduced and the fuel cell is not in the way.

According to the third aspect of the present invention, since the building is provided with an edge and the fuel cell is installed below the edge, the fuel cell does not malfunction due to wind and rain, and the fuel cell does not malfunction. The heat and steam generated from the air go out and the inside of the building does not become hot, the building does not fill with steam, hydrogen can be supplied to the fuel cell from outside, and the maintenance of the fuel cell from outside And the inside of the building is not narrowed by the fuel cell, so that the living space of the building is not reduced and the fuel cell is not in the way.

According to the fourth aspect of the present invention, since a bay window having a bay window floor is provided in the building and the fuel cell is installed below the bay window floor, the fuel cell malfunctions due to wind and rain. Heat and water vapor generated by this fuel cell go out to the outside, the inside of the building does not become hot, the building does not fill with water vapor, and hydrogen etc. from the outside under the window floor. Fuel cells can be supplied, maintenance of the fuel cells can be performed from outside, and the inside of the building is not narrowed by the fuel cells, so that the living space of the building is not reduced or the fuel cells are obstructed. do not become.

According to a fifth aspect of the present invention, there is provided the fuel cell according to the first to fourth aspects, wherein the fuel cell is provided with a reforming device for reforming hydrocarbons or alcohols and supplying hydrogen generated to the fuel cell. As a result, the heat and carbon dioxide gas generated from this reformer goes outside, the inside of the building becomes hot, and the building is not filled with carbon dioxide gas. Hydrogen, alcohol, etc. can be supplied, maintenance of the reformer can be performed from outside, and the inside of the building is not narrowed by the reformer, so that the living space of the building does not become smaller, The reformer does not get in the way.

[Brief description of the drawings]

FIG. 1 shows one embodiment of the present invention, and is a cross-sectional view of a building in which a fuel cell is installed.

FIG. 2 shows another embodiment of the present invention, and is a cross-sectional view of a building in which a fuel cell is installed.

FIG. 3 shows another embodiment of the present invention, and is a sectional view of a building in which a fuel cell is installed.

FIG. 4 is a sectional view of a building in which a fuel cell is installed, showing still another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1a, 1b, 1c Building 2 Building foundation 21 Vent 3, 3a, 3b Fuel cell 4, 4a, 4b Reformer 5a Entrance 52a Entrance porch 53a Entrance step 55a Space 551a Opening 6b Edge 7c Exit window 71c Exit window floor

Claims (5)

[Claims] 1. A fuel cell built-in building that supplies hydrogen to a fuel cell to generate electric power and uses electric power obtained from the fuel cell in the building, wherein the fuel cell includes a ventilation provided on a building foundation. A building with a built-in fuel cell, which is installed inside the building foundation near the mouth. 2. A fuel cell built-in building that supplies hydrogen to a fuel cell to generate electricity and uses electric power obtained from the fuel cell in a building, wherein the building has a front entrance porch or a front entrance step. A fuel cell-equipped building, wherein a space having an opening is provided on a side thereof, and the fuel cell is installed in a space provided below an entrance porch or an entrance step. 3. A fuel cell built-in building that supplies hydrogen to a fuel cell to generate electricity and uses electric power obtained from the fuel cell in the building, wherein the building has an edge, A fuel cell built-in building, wherein the battery is installed below the edge. 4. A fuel cell built-in building that supplies hydrogen to a fuel cell to generate power and uses electric power obtained from the fuel cell in a building, wherein the building has a bay window having a bay window floor. The said fuel cell is provided under the bay window floor, The fuel cell built-in building characterized by the above-mentioned. 5. The fuel cell according to claim 1, further comprising a reformer for reforming hydrocarbon or alcohol to generate hydrogen and supplying the generated hydrogen to the fuel cell. The fuel cell building according to any one of claims 1 to 4.