Heat generating device and heat generating method
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Solution Overview
Problem
Existing heat generating devices using hydrogen storage alloys face challenges in maintaining optimal temperature and efficiency while minimizing the influence of environmental temperature fluctuations.
Innovation Solution
A heat generating device with a multilayer film on a support, featuring a columnar heater and a partition wall with high emissivity treatment, filled with a thermally conductive substance that allows hydrogen permeation, and a sealed container with emissivity-enhanced surfaces to enhance heat conduction and reduce environmental temperature influence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a heater is provided near the heat generating element to increase heat generating efficiency, then heat generating efficiency is improved, but the influence of environmental temperature becomes more significant
Solution Approach 1:
A partition wall is introduced as an intermediary component between the heat generating element and the external environment. This partition wall creates a separated space that allows the heater to efficiently heat the heat generating element while shielding it from environmental temperature fluctuations, thus resolving the contradiction between improving heat generating efficiency and reducing environmental temperature influence
Solution Approach 2:
The space between the heater and partition wall is filled with a thermally conductive substance that has optimized thermal conductivity parameters. This allows efficient heat transfer from the heater to the heat generating element while the partition wall maintains thermal isolation from the external environment, enabling both high heat generating efficiency and environmental temperature isolation
2Use of energy by moving object
If the space between heater and heat generating element is filled with thermally conductive substance to improve heat transfer, then heat transfer efficiency is improved, but hydrogen permeation may be inhibited
Solution Approach 1:
The thermally conductive substance filling the space between the heater and partition wall is selected to have porous characteristics. This porous structure enables the substance to conduct heat efficiently while simultaneously allowing hydrogen gas to permeate through, thus resolving the contradiction between improving heat transfer efficiency and maintaining hydrogen permeation reliability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device maintains consistent temperature across multiple layers of the heat generating element, increasing efficiency by minimizing temperature differences and environmental impacts.
Implementation Method 1
a space surrounded by a surface of the heater, a surface of the heat generating element, and an inner peripheral surface of the partition wall is filled with a thermally conductive substance that does not inhibit hydrogen permeation
Implementation Method 2
the inner wall surface of the sealed container is a surface subjected to a high emissivity treatment, and an outer peripheral surface of the partition wall is a surface subjected to the high emissivity treatment
Implementation Method 3
a multilayer film that generates heat by occluding and discharging hydrogen
Implementation Method 4
a multilayer film that generates heat by occluding and discharging hydrogen
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Provided is a heat generating device and a heat generating method capable of securing a temperature of a heat generating element heated by a heater while reducing an influence of an environmental temperature and increasing heat generating efficiency of the heat generating element. The heat generating device includes: a heat generating element 14 in which a multilayer film that generates heat by occluding and discharging hydrogen is formed on a surface of a support including a plurality of cylinders having different diameters arranged apart from each other in a circumferential direction, or having a spiral cross section with a larger diameter toward an outer peripheral side; a heater 12 at a center of the heat generating element; a sealed container 11 housing the heat generating element; a cylindrical partition wall 13 provided between an inner wall surface of the sealed container and an outermost layer of the heat generating element; a supply line that supplies a gas containing hydrogen to the sealed container; and a discharge line that discharges the gas containing hydrogen, in which a space surrounded by a surface of the heater, a surface of the heat generating element, and an inner peripheral surface of the partition wall is filled with a thermally conductive substance 15 that does not inhibit hydrogen permeation, the inner wall surface 11a of the sealed container is subjected to a high emissivity treatment, and an outer peripheral surface of the partition wall is subjected to the high emissivity treatment, or the partition wall is made of a material with an emissivity of 0.6 or more.