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Cogeneration system

A combined heat and power, heat storage technology, applied in the direction of charging system, heating fuel, domestic heating, etc., can solve the problems of not considering gas, heat and power combination and system efficiency, low operating efficiency, etc.

Inactive Publication Date: 2012-11-28
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The potential energy of the fuel before being supplied to the engine is not used efficiently
[0006] Furthermore, in the above systems no consideration is given to the gases emitted after combustion
Combined heat and power systems become less efficient when engines are started at low operating efficiencies to limit pollutants contained in exhaust gases from being released into the atmosphere

Method used

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  • Cogeneration system

Examples

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Embodiment Construction

[0014] As shown in the figure, the combined heat and power system 10 has a high-pressure tank 11 as a liquid fuel storage portion storing pressurized liquid fuel having a high pressure.

[0015] The fuel stored in the tank 11 has combustibility and is combusted in an engine 14a of a generator section 14 to be mentioned later. The fuel can be easily liquefied at normal temperature such as about 15°C-25°C under high pressure condition, so that the manufacturing cost can be reduced.

[0016] For example, the fuel may be ammonia (NH 3 ). Since ammonia is a compound containing hydrogen, flammable hydrogen gas can be produced by reforming ammonia.

[0017] Alternatively, the fuel may be an ethanol substance such as methyl ether. In addition, the hydrogen-containing fuel may further include at least one atom of sulfur (S), oxygen (O), nitrogen (N), and halogen in a molecule, and may obtain a hydrogen bond between molecules.

[0018] The combined heat and power system 10 includes ...

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PUM

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Abstract

A cogeneration system includes a fuel evaporator (13); an internal combustion engine (14a) which outputs mechanical energy by combusting fuel evaporated by the fuel evaporator; an electric energy generator (14b) that converts the mechanical energy to an electric energy; a cold energy recovery portion (20) which recovers cold energy generated when the fuel evaporator evaporates the fuel; an exhaust heat recovery portion (30) which recovers heat exhausted from the engine; and a gas cleaner (17) that cleans nitrogen oxides contained in gas exhausted from the engine. When the fuel is supplied to the gas cleaner, the fuel reduces the nitrogen oxides by reacting with the nitrogen oxides.

Description

technical field [0001] The present disclosure relates to a cogeneration system. Background technique [0002] JP-A-2010-229885 describes a combined heat and power system that seeks to efficiently use energy generated by burning fuel. [0003] In this combined heat and power system, a generator is driven by rotational power (mechanical energy) of an engine in which fuel is burned, and outputs electric power. In addition, water is heated by combustion waste heat (thermal energy), and the heated water is supplied from a hot water supply device, so that energy obtained by combustion is effectively used. [0004] However, this combined heat and power system uses only a part of the energy obtained through combustion, that is, the potential energy of the fuel is not fully used. [0005] For example, fuel prior to being supplied to the engine is not considered in the systems described above. The potential energy of the fuel before being supplied to the engine is not effectively u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B63/04F02M25/08F02M21/02F02G5/02B01D53/56F24V30/00
CPCF02D29/06F02G5/02F02M21/02Y02T10/166B01D53/9409F02B63/04F02M25/08F02M31/18F02D19/0671Y02T10/32Y02T10/126B01D53/56Y02T10/16Y02E20/14Y02T10/12Y02T10/30Y02P80/15
Inventor 布施卓哉西泽一敏桑山和利
Owner DENSO CORP