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Dear Trnsys users In the supporting documents of ground source heat exchanger (type 919) I
could not find a clear cut definition about some parameters; for instance number
of boreholes in series and number of radial regions. I want to raise it through an example: I have 30 boreholes, in each borehole 1 U-tube. I want to link each 5 boreholes
series together. Therefore, there are 6 parallel loops where each parallel loop
includes 5 boreholes. Total flow rate is 30000 kg/hr. I was wondering if you could give me your comment whether the following
parameters are correct.
Beside, if it is correct (my understanding on loops arrangement) , it
seems that changing the arrangement (changing number of series boreholes) does
not seriously change the heat exchanger output. Have you ever have such results.
I made different arrangement 2 parallel loop with 15 series borehole, 10
parallel loops with 3 series borehole,…) but the outlet temperature of
the heat exchanger was not significantly different. Any comment based on your experiences on using this component would be
highly appreciated. Thanks for your time spending on this issue. Regards Mehdi |