Dear Jeff and Trnsys users,<br><br>Actually I use Type557b to obtain the borehole thermal resistance and thermal conductivity of soil by thermal respons test. I think understanding the parameter 11 and 12 will make my work better. And can you give me some other advise for thermal response test by using Type557?<br>
<br>Thank you in advance.<br><br>Dapeng Li<br><br><div class="gmail_quote">On Wed, Jan 21, 2009 at 2:35 AM, Jeff Thornton <span dir="ltr"><<a href="mailto:thornton@tess-inc.com">thornton@tess-inc.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="Ih2E3d"><2. What I understood about these two paramters is that the total borehole<br>
resistance is calculated by paramter 11 and the absolute value of<br>
parameter 12. I don't know whether my understanding is correct or not? If<br>
my understanding is right, then how is the form of the formula that<br>
calculate the total borehole resistence and how to accurately get the<br>
values of these two parameters?><br>
<br>
</div>If you're not comfortable calculating the resistances yourself and<br>
entering them in the proformas, then you should use the other proformas<br>
for the Type 557 model that calculate these resistances for you based on<br>
the type of pipes, pipe spacing etc. You chose the "Thermal Resistance<br>
Known" folder and instead should have chosen the "Standard" folder. Hope<br>
this helps.<br>
<br>
Jeff<br>
<br>
<br>
<br>
Jeff Thornton<br>
President - TESS, LLC<br>
<br>
2916 Marketplace Drive - Suite 104<br>
Madison WI 53719 USA<br>
<br>
Phone: 608-274-2577<br>
Fax: 608-278-1475<br>
E-mail: <a href="mailto:thornton@tess-inc.com">thornton@tess-inc.com</a><br>
Web: <a href="http://www.tess-inc.com" target="_blank">www.tess-inc.com</a><br>
<br>
</blockquote></div><br>