<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
@font-face
{font-family:"Century Schoolbook";
panose-1:2 4 6 4 5 5 5 2 3 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
pre
{mso-style-priority:99;
mso-style-link:"HTML Preformatted Char";
margin:0cm;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle18
{mso-style-type:personal;
font-family:"Century Schoolbook",serif;
color:windowtext;}
span.HTMLPreformattedChar
{mso-style-name:"HTML Preformatted Char";
mso-style-priority:99;
mso-style-link:"HTML Preformatted";
font-family:"Consolas",serif;
mso-fareast-language:EN-US;}
span.EmailStyle22
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-GB" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal">Dear <span lang="TR" style="font-family:"Century Schoolbook",serif">
Huseyin,<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks for your answer. However, in your paper, you used an air-to-air heat pump; however, as I have a radiator in my system, I need to use an air-to-water heat pump which there is only a single stage type in the TRNSYS TESS library.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Kind regards<o:p></o:p></p>
<p class="MsoNormal">Pouyan<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:EN-GB">From:</span></b><span lang="EN-US" style="mso-fareast-language:EN-GB"> Hüseyin Günhan Özcan <huseyin.ozcan@yasar.edu.tr>
<br>
<b>Sent:</b> 09 August 2021 14:27<br>
<b>To:</b> Pouyan Talebizadehsardari (Staff) <Pouyan.Talebizadehsardari@brunel.ac.uk><br>
<b>Cc:</b> TRNSYS users mailing list at OneBuilding.org <trnsys-users@lists.onebuilding.org><br>
<b>Subject:</b> RE: air-to-water heat pump - Type 941<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="TR" style="font-family:"Century Schoolbook",serif">Dear Sardari,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="TR" style="font-family:"Century Schoolbook",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="TR" style="font-family:"Century Schoolbook",serif">You can use two-stage heat pump models to create low, nominal and high stages for the considered heat pump.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="TR" style="font-family:"Century Schoolbook",serif">We had a publication for a two stage air source heat pump. Pls. see the shared link below.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="TR" style="font-family:"Century Schoolbook",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="TR" style="font-family:"Century Schoolbook",serif"><a href="https://www.sciencedirect.com/science/article/pii/S2210670721000482">https://www.sciencedirect.com/science/article/pii/S2210670721000482</a>
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="TR" style="font-family:"Century Schoolbook",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="TR" style="font-family:"Century Schoolbook",serif">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="TR" style="font-family:"Century Schoolbook",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="TR" style="font-family:"Century Schoolbook",serif">Dr. Huseyin Gunhan OZCAN<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="TR" style="font-family:"Century Schoolbook",serif"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="TR" style="mso-fareast-language:TR">From:</span></b><span lang="TR" style="mso-fareast-language:TR"> TRNSYS-users <<a href="mailto:trnsys-users-bounces@lists.onebuilding.org">trnsys-users-bounces@lists.onebuilding.org</a>>
<b>On Behalf Of </b>Pouyan Talebizadehsardari (Staff) via TRNSYS-users<br>
<b>Sent:</b> Monday, August 9, 2021 12:54 PM<br>
<b>To:</b> <a href="mailto:TRNSYS-users@lists.onebuilding.org">TRNSYS-users@lists.onebuilding.org</a><br>
<b>Cc:</b> Pouyan Talebizadehsardari (Staff) <<a href="mailto:Pouyan.Talebizadehsardari@brunel.ac.uk">Pouyan.Talebizadehsardari@brunel.ac.uk</a>><br>
<b>Subject:</b> [TRNSYS-users] air-to-water heat pump - Type 941<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="TR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Dear All,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">I am modelling a house heated by radiators using an air-to-water heat pump. This model is based on user-supplied data files containing catalogue data for the capacity and power based on the inlet water temperature
and air to the heat pump. As I understand, for a specific existed heat pump, the system should be tested for several inlet conditions (for example 5 different temperatures of water and air=25 case) and then create a new data file including the capacity and
power. Am I correct?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">My main question is that is it possible to consider additional characteristics of the heat pump in the model such as variable speed compressor so the system can be worked with a lower power when less heat
is required for the radiators?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Thanks in advance<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Best regards<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="background:white"><b><span style="color:#201F1E;border:none windowtext 1.0pt;padding:0cm;mso-fareast-language:EN-GB">*******************************************************************************</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#222222;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#201F1E;border:none windowtext 1.0pt;padding:0cm;mso-fareast-language:EN-GB">Pouyan Talebizadeh Sardari</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#201F1E;border:none windowtext 1.0pt;padding:0cm;mso-fareast-language:EN-GB">, BSc
MSc PhD AFHEA</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#222222;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#201F1E;border:none windowtext 1.0pt;padding:0cm;mso-fareast-language:EN-GB">Centre for Sustainable Energy Use in Food Chains,
<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#201F1E;border:none windowtext 1.0pt;padding:0cm;mso-fareast-language:EN-GB">Institute of Energy Futures,
<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#201F1E;border:none windowtext 1.0pt;padding:0cm;mso-fareast-language:EN-GB">Brunel University London,
<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#201F1E;border:none windowtext 1.0pt;padding:0cm;mso-fareast-language:EN-GB">Kingston Lane, Uxbridge, Middlesex, UB8 3PH, UK
</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#222222;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#201F1E;border:none windowtext 1.0pt;padding:0cm;mso-fareast-language:EN-GB">Email: </span><span style="color:black;mso-fareast-language:EN-GB"><a href="mailto:pouyan.talebizadehsardari@brunel.ac.uk"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:blue;border:none windowtext 1.0pt;padding:0cm">pouyan.talebizadehsardari@brunel.ac.uk</span></a></span><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#222222;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<table class="MsoNormalTable" border="0" cellpadding="0">
<tbody>
<tr>
<td style="background:white;padding:.75pt .75pt .75pt .75pt">
<pre><span style="color:black">Bu elektronik postada bulunan tum fikir ve gorusler ve ekindeki dosyalar sadece adres sahip/sahiplerine ait olup,<o:p></o:p></span></pre>
<pre><span style="color:black">Yasar Universitesi bu mesajin icerigi ile ilgili olarak hic bir hukuksal sorumlulugu kabul etmez. Eger gonderilmesi<o:p></o:p></span></pre>
<pre><span style="color:black">dusunulen kisi veya kurulus degilseniz, lutfen gonderen kisiyi derhal haberdar ediniz ve mesaji sisteminizden siliniz.<br><br><br><o:p></o:p></span></pre>
<pre><span style="color:black">The information contained in this e-mail and any files transmitted with it are intended solely for the use of the<o:p></o:p></span></pre>
<pre><span style="color:black">individual or entity to whom they are addressed Yasar University does not accept legal responsibility for the <o:p></o:p></span></pre>
<pre><span style="color:black">contents. If you are not the intended recipient, please immediately notify the sender and delete the message from your system.<o:p></o:p></span></pre>
</td>
</tr>
</tbody>
</table>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
</div>
</body>
</html>