David Forster's Communities Activities

Heat Gain Simulation reading No solar input

David Forster — Thu, 29 Aug 2019 08:35:34 GMT

I'm running a heat gain simulation on a room that is essentially a greenhouse.

The glass roof etc has all been set up as has the weather info.

The results output of the simulation reads that the temperature within the room stays constant all day and that there is no 'Solar input'.

Obviously the roof is made of glass and therefore this can not be the case.

What changes need to be made to my model/input data in order for the simulation to account for the solar gains.

Kind Regards

David

How do i get my outline to align with the building I've modelled?

David Forster — Wed, 17 Apr 2019 11:39:10 GMT

I received a new building outline for a building I've already modelled.

I replaced the outline on a constant known point so i could make changes, saved and opened the model in hevacomp.

The outline is no longer inline with model for some unknown reason.

I've then measured the distances from the outline shown to the model in hevacomp from a known point by creating a room so I can move the outline in autocad to the coordinates of the room in hevacomp.

Notice the line going from the top right corner of the building to the corner of the model in hevacomp and that same line autocad.

I then moved the outline (keeping the datum lines in the same place, in autocad to the point where the model should exist. Which lead to results shown below.

I have tried several tried several different ways to get the outline to align but all results show that the model moves and therefore does not rely on the coordinates shown in autocad.

Which makes it impossible for me to align my new first floor drawing and continue with my project.

Lighting consumption Part L

David Forster — Mon, 07 Jan 2019 17:37:01 GMT

Im running a Part L calc for a health care facility, using LED lighting everywhere. the lighting design has been completed according to design standards.

but my actual lighting end use is double the notional.

what would cause the notional building to be so much lower ?

thanks

David

Temperature Frequency Simulator

David Forster — Fri, 26 Oct 2018 08:39:07 GMT

I've been trying to run a temperature frequency simulation for an 8 room building.

ive set everything up (repeatedly) and left the simulation to run for several hours / overnight several times.

The simulation makes never seems to finish. the calculation needs to be completed and sent out ASAP

What reasons can there be for a simulation getting stuck and providing no error codes and what can I do to make it work?

Kind Regards

David

'Error: Failed to find Select Server license manager.'

David Forster — Thu, 20 Sep 2018 10:41:32 GMT

Having recently updated my software and trying to open the Design Database I'm presented with this message 'Error: Failed to find Select Server license manager.' The software then terminates.

How do I fix this?

Thanks

David

Ask A Question I

Wed, 01 Aug 2018 02:45:03 GMT

Ask a question in a forum.

Frequency Simulator for an existing system

David Forster — Wed, 01 Aug 2018 15:15:21 GMT

I have a partially conditioned building, I am trying to use the frequency simulator to tell me what percentage of the year the existing FCUs used will not meet the cooling demand and what the resultant temperature will be during this time.

The issue I'm having is that the option to state the FCU cooling Load (kW) is greyed out. so I can not define the existing system.

How do I get the simulator to allow me to fix this information.

Thanks

David Forster