CIBSE TM52: 2013 New Overheating Criteria?!

Fast, accurate dynamic thermal simulation for energy/carbon modelling and much more...
RossThompson87
VE Professor
VE Professor
Posts: 202
Joined: Mon Feb 13, 2012 8:56 am

Re: CIBSE TM52: 2013 New Overheating Criteria?!

Post by RossThompson87 »

Hi,

I was very pleased to see a beta for this included in VE2013 Feature Pack 1.

I'd be interested to know if the development was encouraged by posters on the forum.

My feedback would be that the room settings e.g. clothing level etc. can't really be set globally on many types of buildings.

For example in a school I imagine the pupils will have different clothing in the swimming pool compared to a classroom. Could this all be set via a tabular view interface?
To take it even further you could also look at setting these variables with a profile. Then you could model a period of relaxed dress code e.g shorts for extreme temperatures.

It would also be good to get some benchmarks for 'summer (elevated) air speed (m/s)'. I'm not convinced this can really be calculated dynamically in a reasonable time frame for a whole building. Perhaps this is one for CIBSE to help us on. I think they possibly underestimated home much man and computer power it would take to calculate this dynamically.

Its really good to see this feature included so quickly - a great start from IES.

Ross
Jules
VE Newbie
VE Newbie
Posts: 4
Joined: Fri Sep 13, 2013 11:14 am

Re: CIBSE TM52: 2013 New Overheating Criteria?!

Post by Jules »

RossThompson87 wrote:Hi,

I was very pleased to see a beta for this included in VE2013 Feature Pack 1.

Its really good to see this feature included so quickly - a great start from IES.

Ross
+1
btysoe
VE Graduate
VE Graduate
Posts: 86
Joined: Fri Mar 01, 2013 9:39 am

Re: CIBSE TM52: 2013 New Overheating Criteria?!

Post by btysoe »

could i just check with anybody the definition of "available hours". For a school that is not occupied during august for example. do you simply apply the same occupancy profile across may to September including august

or have the unoccupied periods in the model but include the "available hours" when calculating the hours of exccedance. thus resulting in a lower percentage and probably a pass of criterion 1.
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