Juliana,
You have raised a complex question! A 9 story hotel, for example, could be a very large building with multiple meeting rooms or conference areas.
All of the meeting rooms are dominated by internal loads such as lighting and perhaps other equipment. This would make a need for cooling even in the winter months.
The guest rooms are probably affected most by the building envelope (walls, windows and roof) and therefore would show more heating energy in a cool climate. Perhaps you should review the internal loads and their schedules; a guest room is not occupied very many hours and so its schedule should reflect that with a low fraction of use during many hours each day.
p.s., I am unfamiliar with Bogota’s climate, so I made a plot of the TMY weather data overlaid on a psychrometric chart to confirm your assessment. (shown below). It certainly never gets very warm, but also is not very cold (rarely below 5C). Also, the EnergyPlus statistical file for Bogota’s weather confirms the “3C” classification.
James V Dirkes II, PE, BEMP, LEED AP
www.buildingperformanceteam.com
Energy Analysis, Commissioning & Training Services
1631 Acacia Drive, Grand Rapids, MI 49504 USA
616 450 8653
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Jean marais
Sent: Tuesday, October 09, 2012 10:28 AM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Re: Issues simulating a hotel located in Colombia
Welcome to e+...have you used other simulation programs for building simulation?
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "jhidalgo131" <julianahidalgo@...> wrote:
>
> Good morning to all
>
> I'm new with energyplus and I'm having a hard time making a simulation of a 9-story hotel (2500 m2) located in Bogota, Colombia.
>
> I've found out in other forums that Bogota can be classified as 3C climate zone, so at this point I've defined all the building using openstudio, the large hotel template and the default construction sets and space types for 3C zone according to the ashrae standard 90.1, since we are trying to obtain a LEED certification for this building.
>
> At this moment I'm at the beginning of the simulation process and I made a first run in energy+ just to know the thermal loads for the spaces I defined. I don't understand the results that I get for district cooling (197 GJ) and district heating (68 GJ) at the tables, because Bogota is a cold city with a range of temperatures between 5�C and 15�C and occasionally 20�C. Does this mean that maybe the building has an excess of insulation because of the default characteristics that I used? Is it a mistake to assume that Bogota can be classified as a 3C zone? Do anyone have experience simulating buildings in Colombia? I'm just trying to understand how the program works, so I'd really appreciate help with this.
>
> Thanks a lot and best regards,
>
> Juliana.
>
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