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Forschungsstelle
BFE
Projektnummer
SI/500515
Projekttitel
Open Absorption System for Air Conditioning using Membrane Contactors - Phase II

Texte zu diesem Projekt

 DeutschFranzösischItalienischEnglisch
Schlüsselwörter
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Kurzbeschreibung
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Publikationen / Ergebnisse
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Erfasste Texte


KategorieText
Schlüsselwörter
(Englisch)
Air Conditioning; Open Absorption; Liquid Desiccants; Evaporative Cooling; Membrane Contactors.
Kurzbeschreibung
(Englisch)
Following the developments in Phase I, in Phase II of the Project a prototype, that will constitute basis for the future industrial development, shall be built and extensively tested at a certified laboratory, under the conditions expected in normal field applications. The prototype shall be built as an autonomous air handling unit (AHU), including chemical energy storage in the form of concentrated liquid desiccant solution. Envisaged is to attain "sorption-only" instead of "sorption-supported" air conditioning. A whole new approach for the manufacture of the components, based on induction welding of polymeric parts, shall be refined from pre-studies already undertaken, and used in the manufacture of membrane contactors, heat recovery, heat exchangers and evaporative coolers. Another important part of the research, undertaken in this Phase, shall study experimentally the ageing of polymeric parts (membranes and supporting structures in particular) when submitted to the expected operating conditions of AHU,s of the type developed, to establish service life estimation methods for part and whole components. Computerassisted basic design methods for the various components shall be established and integrared in a simulation procedure conceived for the thermodynamic design of complete AHU,s.
Publikationen / Ergebnisse
(Englisch)
The results obtained in the course of the past six months concern work done to support decisions on the design, manufacturing techniques and selection of materials, and on the methodogy to assess the expected service life of the main components of the Air Handling Unit (AHU) being developed in the Project. The tests to select materials and manufacturing methods point clearly to concrete directions and choices. Testing of two advanced polymer welding techniques yielded results that led to redesign of some components, while keeping the basic concept of functional modularity. These results are now supporting the design of a semi-automated manufacturing platform for polymeric heat and mass exchangers. In the exploratory work on the methodology to assess the expected service life of polymeric parts, various techniques were tested, providing good discriminating power in most cases. Further refinements are required to enable the definition of a predicting method, however.

Auftragnehmer/Contractant/Contraente/Contractor:
M. Conde Engineering

Autorschaft/Auteurs/Autori/Authors:
Conde-Petit,Manuel
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