[EnergyPlus_Support] Re: Where do I start?

["JV Dirkes II" <jvd2pe@xxxxxxx>]

On the one hand, you may learn a lot by employing Energy Plus for this
project.  On the other hand, you may find that you will continue to be
overwhelmed.

I don't recommend that you use Energy Plus for a one-time residential
study.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "firebird_red"
<firebird_red@...> wrote:
>
> My project is a two story brick colonial house that has the center 
> third of the home open 18 feet.  It's tightly insulated, wrapped in 
> tyvek and bricked on all faces.  The house has a lot of glass area.  
> The windows are low-e double insulated glass with wood frames.  They 
> are very tight assemblies, so the building has low infiltration loss.
> 
> The contractor who estimated heating and cooling loads in 1992 
> missed because warm air rises and cold air sinks.  Hid design didn't 
> contemplate interaction between the two systems.  He treated the 
> building as two independent floors in his estimate.  The result is 
> the  systems were undersized.  The upstairs is to small for cooling 
> and the downstairs is too small for heating.  The consequence of the 
> error is the downstairs system falls back to resistance heating with 
> a COP of 1.0 during the night when there is no solar gain.  A  
> contractor looking at the plans says increasing the first floor 
> system by 1/2 ton will cause it to be excess size for cooling.  He 
> says it will have short run times, so won't adequately remove latent 
> heat.
> 
> I would like to do heat loss and solar gain calculations for this 
> project so this time the HVAC equipment will be the correct size for 
> the job. I want to do an hourly analysis, bin-wise using TMY2 
> weather data.  
> 
> I downloaded EnergyPlus and I'm overwhelmed.  I'm not sure if it is 
> the correct tool.  Can someone tell me if this package will do what 
> I need and where to start with this?
>



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