<br />Dear Johannes,<br /><br />I am not familiar with the TS Type372 or infinitely variable compressor control, but I can tell you that all three TESS AWHP components are based on a performance map with the maximum compressor power parameter. How to model something like this, I am not sure, but perhaps the TRNSYS Type42 could be of use if the compressor power is an independent variable?<br /><br />Best regards,<br /><br />Matt Duffy<br /><br /><!--replyfwdwrap--><div style="background-image: url(http://webmail.fusemail.com/de/r_bg_img.gif); background-repeat: repeat-x; background-position: 50% top"><strong>----- Original Message -----</strong><br /><strong>From:</strong> "Schrade, Johannes" <johannes.schrade@ibp.fraunhofer.de> <br /><strong>Sent:</strong> Wed, July 13, 2011 8:33<br /><strong>Subject:</strong> [TRNSYS-users] air-to-water heat pump with infinitely variablecompressor control<br /><br /><table cellspacing="5" width="100%"><tbody><tr><td><div cla!
ss="PrivateMsgDiv"><!-- begin sanitized html --><style type="text/css"></style><div class="bodyclass"><div class="WordSection1"><p class="MsoNormal">Dear TRNSYS users,</p><p class="MsoNormal"> </p><p class="MsoNormal">I’m looking for an air-to-water-heat pump type, which allows an infinitely variable control of its compression power, for TRNSYS 16 or 17.</p><p class="MsoNormal">As far as I know, the only type, which comes into consideration is type 372, one of the TRANSSOLAR non-standard types.</p><p class="MsoNormal">Unfortunately, up to now, my institution is exclusively working with the TESS libraries, and we have so far no access to this type 372.</p><p class="MsoNormal"> </p><p class="MsoNormal">Thus, in order to avoid unnecessary expenses, my questions are:</p><p class="MsoNormal"> </p><p style="text-indent: -18pt; mso-list: l0 level1 lfo1" class="MsoListParagraph"><span style="mso-list: Ignore">1.<span style="font: 7pt 'Times New Roman'"> &n!
bsp; </span></span>Is there really no type in
the TESS libraries for modeling such an air-to-water heat pump with infinitely variable compressor control?</p><p style="text-indent: -18pt; mso-list: l0 level1 lfo1" class="MsoListParagraph"><span style="mso-list: Ignore">2.<span style="font: 7pt 'Times New Roman'"> </span></span>If there is really not such type available, do you have an idea how to simulate such a heat pump with one of the single-stage heat pump types existing in the TESS libraries?</p><p style="text-indent: -18pt; mso-list: l0 level1 lfo1" class="MsoListParagraph"><span style="mso-list: Ignore">3.<span style="font: 7pt 'Times New Roman'"> </span></span>Is it possible with type 372 to define ranges for the infinitely variable control (100% to 40% of total capacity) and an oscillating control (below 40% total capacity).</p><p class="MsoNormal"> </p><p class="MsoNormal">Thanks in advance for your help.</p><p class="MsoNormal"> !
</p><p class="MsoNormal">Kind regards,</p><p class="MsoNormal">Johannes</p><p class="MsoNormal"> </p><p class="MsoNormal"> </p><table style="border-bottom: medium none; border-left: medium none; border-collapse: collapse; margin-left: 3pt; border-top: medium none; border-right: medium none" class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0"><tbody><tr><td style="border-bottom: gray 1pt solid; border-left: gray 1pt solid; padding-bottom: 7.5pt; padding-left: 7.5pt; padding-right: 7.5pt; border-top: gray 1pt solid; border-right: medium none; padding-top: 7.5pt"><table style="border-bottom: medium none; border-left: medium none; border-collapse: collapse; margin-left: 3pt; border-top: medium none; border-right: medium none" class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0"><tbody><tr><td style="border-bottom: gray 1.5pt solid; border-left: gray 1.5pt solid; padding-bottom: 3pt; padding-left: 3pt; padding-right: 3pt; border-top: gray 1.5!
pt solid; border-right: gray 1.5pt solid; padding-top: 3pt"><p style="
margin-bottom: 6pt; margin-left: 3pt; margin-right: 3pt; mso-margin-top-alt: 6.0pt" class="MsoNormal"><b><span style="font-family: 'Arial','sans-serif'; font-size: 9pt" lang="DE">Johannes Schrade</span></b><span style="font-family: 'Arial','sans-serif'; font-size: 9pt" lang="DE"><br />Abteilung Wärmetechnik</span></p><p style="margin-bottom: 6pt; margin-left: 3pt; margin-right: 3pt; mso-margin-top-alt: 6.0pt" class="MsoNormal"><span style="font-family: 'Arial','sans-serif'; font-size: 9pt" lang="DE">Fraunhofer-Institut für Bauphysik<br />Nobelstr. 12<br />70569 Stuttgart</span></p><p style="margin-bottom: 6pt; margin-left: 3pt; margin-right: 3pt; mso-margin-top-alt: 6.0pt" class="MsoNormal"><span style="font-family: 'Arial','sans-serif'; font-size: 9pt"><a target="_new" href="mailto:johannes.schrade@ibp.fraunhofer.de"><span style="color: blue" lang="DE">johannes.schrade@ibp.fraunhofer.de</span></a></span><span style="font-family: 'Arial','sans-serif'; font-size: 9p!
t" lang="DE"><br />Telefon 0711 / 970-3416<br />Telefax 0711 / 970-3399<br /></span><span style="font-family: 'Arial','sans-serif'; font-size: 9pt"><a target="_new" href="http://www.ibp.fraunhofer.de/wt/"><span style="color: blue" lang="DE">www.ibp.fraunhofer.de/wt/</span></a></span></p></td></tr></tbody></table></td><td style="border-bottom: gray 1pt solid; border-left: medium none; padding-bottom: 7.5pt; padding-left: 7.5pt; padding-right: 7.5pt; border-top: gray 1pt solid; border-right: gray 1pt solid; padding-top: 7.5pt"><table style="border-bottom: medium none; border-left: medium none; border-collapse: collapse; margin-left: 3pt; border-top: medium none; border-right: medium none" class="MsoNormalTable" border="1" cellspacing="0" cellpadding="0"><tbody><tr><td style="border-bottom: gray 1.5pt solid; border-left: gray 1.5pt solid; padding-bottom: 3pt; padding-left: 3pt; padding-right: 3pt; border-top: gray 1.5pt solid; border-right: gray 1.5pt solid; padding-top: 3pt">!
<p style="margin-bottom: 6pt; margin-left: 3pt; margin-right: 3pt; mso
-margin-top-alt: 6.0pt" class="MsoNormal"><b><span style="font-family: 'Arial','sans-serif'; font-size: 9pt">Johannes Schrade</span></b><span style="font-family: 'Arial','sans-serif'; font-size: 9pt"><br />Department Heat Technology </span></p><p style="margin-bottom: 6pt; margin-left: 3pt; margin-right: 3pt; mso-margin-top-alt: 6.0pt" class="MsoNormal"><span style="font-family: 'Arial','sans-serif'; font-size: 9pt">Fraunhofer Institute for Building Physics<br />Nobelstr. </span><span style="font-family: 'Arial','sans-serif'; font-size: 9pt" lang="DE">12<br />70569 Stuttgart, Germany</span></p><p style="margin-bottom: 6pt; margin-left: 3pt; margin-right: 3pt; mso-margin-top-alt: 6.0pt" class="MsoNormal"><span style="font-family: 'Arial','sans-serif'; font-size: 9pt"><a target="_new" href="mailto:johannes.schrade@ibp.fraunhofer.de"><span style="color: blue" lang="DE">johannes.schrade@ibp.fraunhofer.de</span></a></span><span style="font-family: 'Arial','sans-serif'; font-size:!
9pt" lang="DE"><br />Phone +49 711 / 970-3416<br />Fax +49 711 / 970-3399<br /></span><span style="font-family: 'Arial','sans-serif'; font-size: 9pt"><a target="_new" href="http://www.ibp.fraunhofer.de/wt/"><span style="color: blue" lang="DE">www.ibp.fraunhofer.de/wt/</span></a></span></p></td></tr></tbody></table></td></tr></tbody></table><p class="MsoNormal"><span lang="DE"> </span></p></div></div><!-- end sanitized html --><hr noshade="" size="1" /><pre>
_______________________________________________
TRNSYS-users mailing list
<a href="javascript:bodyCreateMail('TRNSYS-users%40cae.wisc.edu')">TRNSYS-users@cae.wisc.edu</a>
<a target="_blank" href="https://mailman.cae.wisc.edu/listinfo/trnsys-users">https://mailman.cae.wisc.edu/listinfo/trnsys-users</a>
</pre></div></td></tr></tbody></table></div>