CIBSE Gain Queries

RE: CIBSE Gain Queries

Graeme Matheson — Tue, 01 Oct 2019 09:05:14 GMT

Thanks Shane, much appreciated.

RE: CIBSE Gain Queries

Shane Regan — Tue, 01 Oct 2019 09:01:16 GMT

Hi Graeme,

Rooms 01, 11 and 12 have an air change rate of 0.5 per hr specified, as below.

Changing this to 0 will resolve the issue. If you wish to apply similar conditions to a group of rooms I would recommend using Global Change, this will ensure that no rooms are missed.

RE: CIBSE Gain Queries

Graeme Matheson — Tue, 01 Oct 2019 07:47:42 GMT

Shane,

I have uploaded a zip folder following the above link. Excuse me but I haven't used Hevacomp for a few years so running a sample model to test the results prior to using it on a larger scale project; hence the queries regarding convective & latent gains. 3 of the 4 rooms seem to have gains attributed to convective and latent, but I cant see why? I believe I have modelled all rooms the same.

Thanks,

Graeme

RE: CIBSE Gain Queries

Shane Regan — Mon, 30 Sep 2019 09:21:32 GMT

Hi Graeme, I think I would be in a better position to comment if I can see the project - could you please upload the project folder to:

https://bentley.sharefile.com/r-rb45fa704ecb40128

Also, I assume that the fresh air options on the CIBSE gain calculation are disabled?

RE: CIBSE Gain Queries

Graeme Matheson — Fri, 27 Sep 2019 14:55:02 GMT

RE: CIBSE Gain Queries

Graeme Matheson — Fri, 27 Sep 2019 14:54:42 GMT

Shane,

Thanks for prompt response. See attached screen shot as requested.

RE: CIBSE Gain Queries

Shane Regan — Fri, 27 Sep 2019 14:48:48 GMT

Hi Graeme,

Could you please reply with a screenshot of the design conditions from this room, ie such as:

To view a detailed breakdown for the gains just click on 'Full' results in the bottom left, this will show the following, for example: