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<p>Emre,</p>
<p>The COP of the heat pump is only a function of the inlet conditions. So if the COP is changing the inlet conditions are changing. There really is no other explanation that I can think of.</p>
<p> </p>
<p>Jeff</p>
<p> </p>
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<pre>---<br />Jeff Thornton
President - TESS LLC
3 N. Pinckney Street, Suite 202, Madison WI USA 53703
Office: (608) 274-2577 Fax: (608) 278-1475
www.tess-inc.com
E-Mail: thornton@tess-inc.com
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<p>On 04/17/2020 1:59 pm, Emre Arpaci via TRNSYS-users wrote:</p>
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<div dir="ltr">Hi users.
<div>I wish you all good health.</div>
<div>I have a problem about my heat pump COP</div>
<div>I ' m examining the type 927 COP. When ı plot COP between 330h and 390h. The COP is about 3.3 but when i plot the COP between 0-740h. It shows that COP is going about 3.8 why this difference is occurred. I did not change anything</div>
<div>only changed the time interval.</div>
<div>Thanks </div>
<div>Have a good day for you all.</div>
<div> </div>
<div>Emre.</div>
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<br />
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