Hello,
did you check if and which performance maps are you using?
Toni Calabrese, MSc.
Wissenschaftlicher Projektmitarbeiter
toni.calabrese@spf.ch |
toni.calabrese@ost.ch
T +41 58 257 4827
SPF Institut für Solartechnik
OST – Ostschweizer Fachhochschule
Oberseestr. 10 | CH-8640 Rapperswil | Switzerland |
www.spf.ch
| www.ost.ch
OST – Ostschweizer Fachhochschule ist der Zusammenschluss aus FHS St.Gallen, HSR Rapperswil und NTB Buchs.
From: TRNSYS-users <trnsys-users-bounces@lists.onebuilding.org>
On Behalf Of Heidari Amirreza via TRNSYS-users
Sent: Sunday, January 3, 2021 12:17 PM
To: trnsys-users@lists.onebuilding.org
Cc: Heidari Amirreza <amirreza.heidari@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:
Phone: +41 21 69 57221