Heat storage materials and methods of manufacturing the heat storage materials

a technology of heat storage materials and heat storage materials, which is applied in the direction of regenerative heat exchangers, indirect heat exchangers, lighting and heating apparatus, etc., can solve the problems of troublesome operation, increased organic acid and peroxide, and degraded performance of adsorption materials, so as to absorb and dissipate latent heat in response to temperature changes

Inactive Publication Date: 2009-12-03
AISAN IND CO LTD +1
View PDF30 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013]One aspect according to the present invention includes a heat storage material that includes a heat storage granule having a plurality of microcapsules mixed with a binder and granulated into the at least one heat storage granule. Each of the microcapsules may have an outer case and a phase change material contained therein. T...

Problems solved by technology

Therefore, if this heat storage material is used in connection with the operation for adsorbing and desorbing vaporized mixed fuel produced from alcohol-containing fuel, there is a possibility of causing problems, in particular when degraded alcohol-containing fuel is used.
Thus, if alcohol-containing fuel is degraded, this may cause increase of organic acid and peroxide, which act to break cross-linkage of the melamine resin forming the outer cases of the microcapsules.
If the phase change material flows out of the microcapsules, late...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heat storage materials and methods of manufacturing the heat storage materials
  • Heat storage materials and methods of manufacturing the heat storage materials
  • Heat storage materials and methods of manufacturing the heat storage materials

Examples

Experimental program
Comparison scheme
Effect test

example

[0039]Second unfinished heat storage granules covered by underlying layers were obtained by the same process as in Comparative Example 2, and the second unfinished heat storage granules were then immersed into a water solution of surfactant in the concentration of 500 ml / l, and were ultrasonically washed for five minutes at 75° C. The heat storage granules were then again washed by water, immersed into a plating bath containing nickel in the concentration of 155 ml / l, and electrolessly plated for 25 minutes at 90° C. As a result, cover layers having a thickness of 5 μm were formed on the second heat storage granules.

(Immersion Tests)

[0040]Immersion tests were conducted to the heat storage granules of Example and Comparative Examples 1 and 2 by immersing the heat storage materials into ethanol-containing gasoline filled within pressure resistant bottles. During the immersion tests, the pressure resistant bottles were sealingly closed and were immersed into an oil vessel that contains...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Temperatureaaaaaaaaaa
Electrical conductivityaaaaaaaaaa
Electrical resistanceaaaaaaaaaa
Login to view more

Abstract

The present invention includes a heat storage granule having a plurality of microcapsules mixed with a binder and granulated into the heat storage granule. Each of the microcapsules may have an outer case and a phase change material contained therein. The outer case may be made of synthetic resin. The phase change material can absorb and dissipate latent heat in response change in temperature. The heat storage granule may have a cover layer that has heat conductivity and resistance against alcohol, both of which may be higher than those of a thermosetting resin or a thermoplastic resin.

Description

[0001]This application claims priority to Japanese patent application serial number 2008-137450, the contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to heat storage materials that can be disposed within canisters of fuel vapor processing apparatus for inhibiting fuel vapor produced within a fuel tank from dissipating to the atmosphere, and in particular to heat storage materials in forms of granules. Each of the granules has microcapsules each having an outer case and a phase change material that is contained within the outer case and can absorb and dissipate latent heat in response change in temperature. The microcapsules are mixed with a binder and are formed into the granules. The present invention also relates to methods of manufacturing the heat storage materials.[0004]2. Description of the Related Art[0005]A known canister for a fuel vapor processing apparatus includes an adsor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F28D17/00B21D53/02
CPCF28D20/023Y10T29/4935Y02E60/145Y02E60/14
Inventor SUZUKI, MASATAKAMURAISHI, AKIOMATSUNAMI, TAKANORIKOSUGI, RYUJISEKI, KENJI
Owner AISAN IND CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap