[TRNSYS-users] Variable Speed Air Source HP in TRNSYS

Hoàng Nguyễn nguyenhuuhoang at gmail.com
Sat Dec 22 22:18:58 PST 2018

Dear All

I'm using Trnsys 16 simulation building, but i don't know creat file
building from any where.

Please help me!

Thank you.

On Thu, Dec 20, 2018 at 10:56 PM David BRADLEY via TRNSYS-users <
trnsys-users at lists.onebuilding.org> wrote:

> Muhammad,
>  Can you be a bit more specific about what you mean by "transient state"
> analysis? Type1271 uses a performance map lookup method. Its compressor is
> assumed to vary its speed to maintain a constant outlet temperature on the
> load side. In that the heat pump compressor adjusts to the present load
> requirements it does do a transient analysis. However, if you are looking
> for a component that uses a more first principals approach and models the
> state of the refrigerant in the heat pumps heat exchangers, compressors,
> and expansion valve then I think you would need to look to a different Type
> than 1271.
> As a side comment, please note that Type1271 is an air (source) to water
> (load) heat pump, not an air to air heat pump.
> kind regards,
>  David
> On 12/20/2018 07:50, Muhammad Abid via TRNSYS-users wrote:
> Hi,
> I am a new user to TRNSYS from Ulster University. I would be working for
> my PhD studies on the topic of variable speed air source heat pump . I
> found this "Type 1271v2" ASHP from TESS library useful for me.
> I am interested in the transient state analysis of the HP. Is this Type
> suitable for me or i should use some other software(like EES or Matlab) for
> the transient state analysis?
> Best Regards
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> ***************************
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> Thermal Energy Systems Specialists, LLC
> 3 North Pinckney Street - suite 202
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*Nguyen Huu Hoang*

*Thermal Power Plant Engineering*
*Email: nguyenhuuhoang at gmail.com <nguyenhuuhoang at gmail.com>*
*Mobile: +84 (0)986224282*
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