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Document IIF

Fluides de transfert de chaleur à base de bétaïne en tant que solution naturelle pour des problèmes liés à l'environnement, à la toxicité et à la corrosion dans des systèmes frigorifiques.

Betaine based heat transfer fluids as a natural solution for environmental, toxicity and corrosion problems in heating and cooling systems.

Auteurs : JOKINEN J., WILLEMS B. P. M.

Résumé

A betaine-water solution was tested and developed for heat transfer use. Betaine (trimethyl glycine) is a by-product of the sugar industry and is acquired from sugar beet. Therefore betaine is completely non-toxic and also non-harmful to the environment. It is a renowned substance in the pharmaceutical-, cosmetic-, food- and medical industry. Adequate freezing protection is achieved with betaine concentration of 20-55% by weight. The development work consisted of carefully measuring freeze protection and pipe burst protection with different betaine concentrations, measuring physical properties in the same circumstances and developing the additive package for enhanced corrosion protection. Field-testing was done during four years. Testing showed that a betaine-water solution has good thermodynamic properties to be used as a heat transfer fluid in the HVAC industry, with additional environmental, non-toxicity and corrosion properties. The concrete result was a trademark and application patent protected new product for the industry.

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Pages : 2004-2

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Détails

  • Titre original : Betaine based heat transfer fluids as a natural solution for environmental, toxicity and corrosion problems in heating and cooling systems.
  • Identifiant de la fiche : 2005-1874
  • Langues : Anglais
  • Source : Natural Working Fluids 2004: 6th IIR-Gustav Lorentzen Conference
  • Date d'édition : 01/08/2004

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