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RE: [EnergyPlus_Support] Thank you Peter G. Ellis, another question?
Thank you Ellis, Peter, I have tested you modified file, it's running well, on the basis of this file, I wrote a idf file dealed with two tanks solar water heating system (solar preheating system), I'm a HVAC engineer and now engaged in a SWH project. I look forward to EP+'s improvement on solar thermal systems.
Thank you again.
Hoozor
"Ellis, Peter" <peter_ellis@xxxxxxxx> wrote:
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The flat-plate collector model can also approximate a bank of evacuated-tube collectors. In DataSets\SolarCollectors.idf, you'll find listed 2 tubular collectors from Beijing Sunda Solar Energy Tech and 2 tubular collectors from Thermo Technologies. The Incident Angle Modifier (IAM) coefficients that are given are for sun angles perpendicular to the tubes. Tubular collectors also have a second set of Incident Angle Modifiers for sun angles parallel to the tubes. These are not yet included in EnergyPlus, but this is less of an effect because the sun angle changes a lot more as it goes east-west every day, compared to the seasonal angle change in the north-south direction (assuming the tubes are oriented north-south).
An enhanced collector model especially for evacuated-tube collectors (to include a second set of IAMs) and a model for compound parabolic concentrators (CPCs) are planned for a future release.
Peter G. Ellis
National Renewable Energy Laboratory
Center for Buildings and Thermal Systems
1617 Cole Blvd
Golden, CO 80401
-----Original Message-----
From: iaccabr [mailto:iaccabr@xxxxxxxxx]
Sent: Friday, December 10, 2004 1:36 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Thank you Peter G. Ellis, another question?
Dear Peter G. Ellis,
Thank you very much for your reply for my question about
SolarCollectorFlatPlateWater.idf, I will download your file and
check it.
Will ep+ plan to include tube collector and CPC in the future?
Best regards
Hoozor
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