[TRNSYS-users] air-to-water heat pump - Type 941

Pouyan Talebizadehsardari (Staff) Pouyan.Talebizadehsardari at brunel.ac.uk
Mon Aug 9 06:41:32 PDT 2021


Dear Huseyin,

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.

Kind regards
Pouyan

From: Hüseyin Günhan Özcan <huseyin.ozcan at yasar.edu.tr>
Sent: 09 August 2021 14:27
To: Pouyan Talebizadehsardari (Staff) <Pouyan.Talebizadehsardari at brunel.ac.uk>
Cc: TRNSYS users mailing list at OneBuilding.org <trnsys-users at lists.onebuilding.org>
Subject: RE: air-to-water heat pump - Type 941

Dear Sardari,

You can use two-stage heat pump models to create low, nominal and high stages for the considered heat pump.
We had a publication for a two stage air source heat pump. Pls. see the shared link below.

https://www.sciencedirect.com/science/article/pii/S2210670721000482

Best regards,

Dr. Huseyin Gunhan OZCAN

From: TRNSYS-users <trnsys-users-bounces at lists.onebuilding.org<mailto:trnsys-users-bounces at lists.onebuilding.org>> On Behalf Of Pouyan Talebizadehsardari (Staff) via TRNSYS-users
Sent: Monday, August 9, 2021 12:54 PM
To: TRNSYS-users at lists.onebuilding.org<mailto:TRNSYS-users at lists.onebuilding.org>
Cc: Pouyan Talebizadehsardari (Staff) <Pouyan.Talebizadehsardari at brunel.ac.uk<mailto:Pouyan.Talebizadehsardari at brunel.ac.uk>>
Subject: [TRNSYS-users] air-to-water heat pump - Type 941

Dear All,

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?
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?

Thanks in advance

Best regards

*******************************************************************************
Pouyan Talebizadeh Sardari, BSc MSc PhD AFHEA
Centre for Sustainable Energy Use in Food Chains,
Institute of Energy Futures,
Brunel University London,
Kingston Lane, Uxbridge, Middlesex, UB8 3PH, UK
Email: pouyan.talebizadehsardari at brunel.ac.uk<mailto:pouyan.talebizadehsardari at brunel.ac.uk>


Bu elektronik postada bulunan tum fikir ve gorusler ve ekindeki dosyalar sadece adres sahip/sahiplerine ait olup,

Yasar Universitesi bu mesajin icerigi ile ilgili olarak hic bir hukuksal sorumlulugu kabul etmez. Eger gonderilmesi

dusunulen kisi veya kurulus degilseniz, lutfen gonderen kisiyi derhal haberdar ediniz ve mesaji sisteminizden siliniz.



The information contained in this e-mail and any files transmitted with it are intended solely for the use of the

individual or entity to whom they are addressed Yasar University does not accept legal responsibility for the

contents. If you are not the intended recipient, please immediately notify the sender and delete the message from your system.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20210809/eb2d4705/attachment-0001.html>


More information about the TRNSYS-users mailing list