[TRNSYS-users] Vacuum tubes with concentrator

[Xavier Arino]

Dear TRNSYS group,

I am trying to model a solar hot water system using vacuum tubes with concentrator (I am using Schott vacuum tubes). I only have the instant efficiency test (quadratic equation) from the manufacturer. I am not sure if I should use TYPE 74 (CPC collector) or TYPE 71 (Vacuum Tube), because I don't know if Type 71 -or the instant efficiency equation- will take account of the "concentration effect" into the absorber. Does anyone have any recommendations on what to do? Many thanks

 

Xavi Ariño

 

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20051208/358da92f/attachment-0005.htm>