Search

EP-4741732-A1 - HEAT GENERATION SYSTEM, THERMAL POWER GENERATION SYSTEM, AND HEAT GENERATION METHOD

EP4741732A1EP 4741732 A1EP4741732 A1EP 4741732A1EP-4741732-A1

Abstract

A heat generating system, a thermal power generating system, and a heat generating method that can generate heat with a simplified configuration without a heater when using a heat generating element using a hydrogen storage alloy or the like to generate the heat are provided. The heat generating system 1 includes a heat generating device 11 including a heat generating element in which a multilayer film that generates heat by occluding and discharging hydrogen is formed on a front surface of a support made of at least one of a porous body, a hydrogen occluding and discharging film, and a proton conductor, a sealed container that stores the heat generating element, a lead-in line 4 that leads a hydrogen-containing gas into the sealed container, a lead-out line 5 that leads out the hydrogen-containing gas supplied for the heat generating element to generate heat by occluding and discharging the hydrogen in the heat generating element; and a heat source 7 that supplies a gas that heats the heat generating element from outside the sealed container, or that heats the hydrogen-containing gas that heats the heat generating element inside the sealed container.

Inventors

  • YOSHINO, SHIN

Assignees

  • Clean Planet Inc.

Dates

Publication Date
20260513
Application Date
20240605

Claims (10)

  1. A heat generating system comprising: a heat generating device including a heat generating element in which a multilayer film that generates heat by occluding and discharging hydrogen is formed on a front surface of a support made of at least one of a porous body, a hydrogen occluding and discharging film, and a proton conductor, a sealed container that stores the heat generating element, a lead-in line that leads a hydrogen-containing gas into the sealed container, and a lead-out line that leads out the hydrogen-containing gas supplied for the heat generating element to generate heat by occluding and discharging the hydrogen in the heat generating element; and a heat source that supplies a gas that heats the heat generating element from outside the sealed container, or that heats the hydrogen-containing gas that heats the heat generating element inside the sealed container.
  2. The heat generating system according to claim 1, wherein the multilayer film includes a first layer that is made of a hydrogen storage metal or a hydrogen storage alloy and has a thickness of less than 1000 nm, and a second layer that is made of a hydrogen storage metal or a hydrogen storage alloy, which is different from that of the first layer, or ceramics and has a thickness of less than 1000 nm.
  3. A thermal power generating system comprising: a heat generating device including a heat generating element in which a multilayer film that generates heat by occluding and discharging hydrogen is formed on a front surface of a support made of at least one of a porous body, a hydrogen occluding and discharging film, and a proton conductor, a sealed container that stores the heat generating element, a lead-in line that leads a hydrogen-containing gas into the sealed container, and a lead-out line that leads out the hydrogen-containing gas supplied for the heat generating element to generate heat by occluding and discharging the hydrogen in the heat generating element; and a thermal power generating device including a gas turbine, wherein the gas turbine includes a hydrogen boiler that discharges a gas that heats the heat generating element from outside the sealed container or a gas that heats the hydrogen-containing gas that heats the heat generating element inside the sealed container, or that heats the hydrogen-containing gas that heats the heat generating element from outside the sealed container or inside the sealed container.
  4. The thermal power generating system according to claim 3, wherein the multilayer film includes a first layer that is made of a hydrogen storage metal or a hydrogen storage alloy and has a thickness of less than 1000 nm, and a second layer that is made of a hydrogen storage metal or a hydrogen storage alloy, which is different from that of the first layer, or ceramics and has a thickness of less than 1000 nm.
  5. The thermal power generating system according to claim 3, wherein the thermal power generating device further includes a steam turbine.
  6. The thermal power generating system according to claim 3, wherein the thermal power generating device is a power generating device including a hydrogen combustion gas turbine.
  7. The thermal power generating system according to claim 6, wherein the hydrogen-containing gas heated by the heat generated by the heat generating element due to the occluding and discharging of the hydrogen in the heat generating element is combusted by the hydrogen combustion gas turbine to generate electricity.
  8. A thermal power generating system comprising: a heat generating device including a heat generating element in which a multilayer film that generates heat by occluding and discharging hydrogen is formed on a front surface of a support made of at least one of a porous body, a hydrogen occluding and discharging film, and a proton conductor, a sealed container that stores the heat generating element, a lead-in line that leads a hydrogen-containing gas into the sealed container, and a lead-out line that leads out the hydrogen-containing gas supplied for the heat generating element to generate heat by occluding and discharging the hydrogen in the heat generating element; a hydrogen boiler that heats the hydrogen-containing gas for heating the heat generating element from outside the sealed container or inside the sealed container; and a hydrogen combustion boiler that combusts the hydrogen-containing gas heated by the heat generated by the heat generating element due to the occluding and discharging of the hydrogen in the heat generating element.
  9. The thermal power generating system according to claim 8, wherein the multilayer film includes a first layer that is made of a hydrogen storage metal or a hydrogen storage alloy and has a thickness of less than 1000 nm, and a second layer that is made of a hydrogen storage metal or a hydrogen storage alloy, which is different from that of the first layer, or ceramics and has a thickness of less than 1000 nm.
  10. A heat generating method comprising: storing, in a sealed container, a heat generating element in which a multilayer film that generates heat by occluding and discharging hydrogen is formed on a front surface of a support made of at least one of a porous body, a hydrogen occluding and discharging film, and a proton conductor; supplying, from a heat source, a gas that heats the heat generating element from outside the sealed container, or heating, by the heat source, a hydrogen-containing gas that heats the heat generating element inside the sealed container; and leading the hydrogen-containing gas into the sealed container, and causing the heat generating element to generate heat by occluding and discharging the hydrogen in the heat generating element.

Description

Technical Field The present invention relates to a heat generating system, a thermal power generating system, and a heat generating method. Background Art It is known that a hydrogen storage alloy has properties of repeatedly occluding and discharging a large amount of hydrogen in a certain reaction condition, and is accompanied by significant reaction heat when occluding and discharging hydrogen. A heat utilization system such as a heat pump system, a heat transport system, and a cooling and heating (freezing) system, or a hydrogen storage system, which utilizes the reaction heat, has been proposed (for example, see Patent Literatures 1 and 2). The applicants have found that in a heat generating device including a heat generating element using a hydrogen storage alloy or the like, by configuring the heat generating element with a support and a multilayer film supported on the support, heat is generated when occluding hydrogen to the heat generating element and when discharging hydrogen from the heat generating element. The applicants have previously proposed a heat utilization system and a heat generating device based on such findings (see Patent Literature 3). Specifically, the support provided in the heat generating element of the heat generating device is made of at least one of a porous body, a hydrogen permeable film, and a proton conductor, and the multilayer film supported on the support, for example, is formed by alternately stacking a first layer that is made of a hydrogen storage metal or a hydrogen storage alloy and has a thickness of less than 1000 nm, and a second layer that is made of a hydrogen storage metal or a hydrogen storage alloy, which is different from that of the first layer, or ceramics and has a thickness of less than 1000 nm. Citation List Patent Literature Patent Literature 1: JPS56-100276APatent Literature 2: JPS58-022854APatent Literature 3: JP6749035B Summary of Invention Technical Problem However, in the heat generating device using the heat generating element using the hydrogen storage alloy or the like proposed in Patent Literature 3, it is necessary to use a heater to heat hydrogen or the heat generating element, and there is a demand for a simplified device that does not use a heater. An object of the present invention is to provide a heat generating system, a thermal power generating system, and a heat generating method that can generate heat with a simplified configuration without a heater when using a heat generating element using a hydrogen storage alloy or the like to generate the heat. Solution to Problem A heat generating system according to the present invention includes a heat generating device including a heat generating element in which a multilayer film that generates heat by occluding and discharging hydrogen is formed on a front surface of a support made of at least one of a porous body, a hydrogen occluding and discharging film, and a proton conductor, a sealed container that stores the heat generating element, a lead-in line that leads a hydrogen-containing gas into the sealed container, and a lead-out line that leads out the hydrogen-containing gas supplied for the heat generating element to generate heat by occluding and discharging the hydrogen in the heat generating element; and a heat source that supplies a gas that heats the heat generating element from outside the sealed container, or that heats the hydrogen-containing gas that heats the heat generating element inside the sealed container. A thermal power generating system according to the present invention includes: a heat generating device including a heat generating element in which a multilayer film that generates heat by occluding and discharging hydrogen is formed on a front surface of a support made of at least one of a porous body, a hydrogen occluding and discharging film, and a proton conductor, a sealed container that stores the heat generating element, a lead-in line that leads a hydrogen-containing gas into the sealed container, and a lead-out line that leads out the hydrogen-containing gas supplied for the heat generating element to generate heat by occluding and discharging the hydrogen in the heat generating element; and a thermal power generating device including a gas turbine, in which the gas turbine includes a hydrogen boiler that discharges a gas that heats the heat generating element from outside the sealed container or a gas that heats the hydrogen-containing gas that heats the heat generating element inside the sealed container, or that heats the hydrogen-containing gas that heats the heat generating element from outside the sealed container or inside the sealed container. A thermal power generating system according to the present invention includes: a heat generating device including a heat generating element in which a multilayer film that generates heat by occluding and discharging hydrogen is formed on a front surface of a support made of at least one of a porous body, a