For covered solar air heating collectors, a thermo-hydraulic curve model was developed and implemented in an Excel tool at Fraunhofer ISE. The core feature is to calculate and optimize air collector field dimensions and mass flows at instantaneous working points in the system context.
The tool is used within the Solar Keymark certification. It converts the thermo-hydraulic air collector parameters in a way that they can be compared to each other and can be used for a simulation of the collector annual output in ScenoCalc.
The Excel tool can also be used to determine the thermo-hydraulic air collector parameters based on measurement results according to EN ISO 9806.
The tool is ready for system planning, which means that collector fields can be dimensioned and results can be used to choose fans. It supports air collector development, and it is conveniently structured for scientific studies.
Important remark: The basis for Aircow is a measurement of the solar air heating collector in closed loop operation according to EN ISO 9806. The results of a measurement in open to ambient operation is not sufficient to be calculated in Aircow. However, open to ambient solar air heating collectors can also be calculated with Aircow if a measurement in closed loop operation was performed according to EN ISO 9806.
Information on validity:
Aircow has been approved for official use by the Solar Keymark Network in January 2017.
||Format: *.xlsm (MS Excel 2010 or later with macros)
Size: 876.7 kB
Developed by: Christian Welz
Download version 3.00 (2016-09-30)
||Documentation / manual 53 pages, english
Size: 3.6 MB
See last worksheet of modus "B. System Planning, Scientific Studies" within Aircow