Consecutive hours over a certain temperature

[robc]

Hi

I have been asked on a number of projects for the maximum period the temperature is above a certain benchmark temperature, or the maximum number of consecutive hours the temperature is above a stated temperature. Is there anyway of doing this?

[Marc Jensen]

There is a very easy way to do this.

Go to vista select your room.

Select internal temperature.

Select range test then select when occupied and the number of hours greater than/less than your set temperature.

[bootsam]

^whs but if this is for CfSH note that it will report exactly 25°C as being above 25°C and if the assessors are as pedantic as the ones ive experienced they will still fail it. Even if you show them the graph. So i set it as 25.01° or 28.01°. As its the 5% above 25°C rule and/or 28° for 1%.

IES should really report it as 'equal to or greater than' and not just 'greater than'. Although to be fair its the CfSH assessors rigid adherence to black and white thats really the issue.

[robc]

Thanks. Would you know if there is a way to find the number of consecutive hours above a benchmark temperature?

[PCully]

Hi,

To get Consecutive hours then the range tool won't help so much, there are extra analysis tools in VistaPro e.g. on the XY plot you can set a Threshold line to easily see on the chart where it is over but that would still be manual/visual checking. Some extra analysis tools are in development here that can also report on and highlight hours above a threshold so that would be closer to what you wanted, at present this isn't available (bit of a tease really).

The best I can suggest is to export to Excel and analyse the data in there, the tools mentioned above might make it easier to focus on the areas of interest though and I thought worth mentioning as a general useful tip for these kinds of assessments

Phil