Reference : Constructive design of an aluminum microchannel evaporator for a solar hybrid module
Scientific congresses, symposiums and conference proceedings : Poster
Engineering, computing & technology : Energy
Constructive design of an aluminum microchannel evaporator for a solar hybrid module
Schneider, Lars Marvin [TH Köln > Cologne Institute for Renewable Energy (CIRE)]
Rullof, Johannes mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > >]
5th International Energy and Sustainability Conference (IESC)
from 30-06-2016 to 01-07-2016
TH Köln
[en] PVT ; microchannel evaporator ; lubricant ; oil return ; brazing ; temperature simulation
[en] This poster summarizes the findings of the scientific report with the following content: As part of the PVT-direkt project, a constructive evaporator design was developed. First, the findings of the current project, the necessary manufacturing fundamentals and the problem of lubricating oil return are presented. Designing the aluminum evaporator was based on a comprehensive three-phase structure. This is first aimed at identifying relevant material properties and their availability. A thorough literature review was carried out to evaluate the findings with respect to the refrigerant distribution and the oil recirculation. Following a constructive evaporator design was developed with respect to the identified standard temperature drop caused by pressure losses to ensure the oil return in comparable evaporator concepts. From the results of a simulation of the evaporation process, the temperature distribution was analyzed in connection with the created design model. Due to the complexity of simulating the refrigerant distribution, this simulation was not carried out – only their general influence is involved. All of this resulted in two evaporator concepts - a harp and a meander model – which were ultimately evaluated and converted into manufacturing drawings. Therefore, this document provides the manufacturing specifications for the prototype to be produced.

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