[TRNSYS-users] Power use of heat pump is constant

[Toni Calabrese]

Hello,
did you check if and which performance maps are you using?


________________________________
Toni Calabrese, MSc.
Wissenschaftlicher Projektmitarbeiter
toni.calabrese at spf.ch<mailto:toni.calabrese at spf.ch> | toni.calabrese at ost.ch<mailto:toni.calabrese at ost.ch>

T +41 58 257 4827

SPF Institut für Solartechnik
OST - Ostschweizer Fachhochschule
Oberseestr. 10 | CH-8640 Rapperswil | Switzerland | www.spf.ch<http://www.spf.ch> | www.ost.ch<http://www.ost.ch>

OST - Ostschweizer Fachhochschule ist der Zusammenschluss aus FHS St.Gallen, HSR Rapperswil und NTB Buchs.

From: TRNSYS-users <trnsys-users-bounces at lists.onebuilding.org> On Behalf Of Heidari Amirreza via TRNSYS-users
Sent: Sunday, January 3, 2021 12:17 PM
To: trnsys-users at lists.onebuilding.org
Cc: Heidari Amirreza <amirreza.heidari at epfl.ch>
Subject: [TRNSYS-users] Power use of heat pump is constant


Hello,



To model a heat pump water heating system I am using type 938. In theory, the COP of the heat pump should decrease with the increase of storage tank temperature. Also, it should increase with the increase of outdoor air temperature. However, using type 938 the power consumption is always the same. Would you please let me know how it can be modified in my simulation?



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Doctoral Assistant, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland



Email:

amirreza.heidari at epfl.ch<mailto:amirreza.heidari at epfl.ch>

amirrezaheidarysbu at gmail.com<mailto:amirrezaheidarysbu at gmail.com>



Phone: +41 21 69 57221
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