Entries by Jordi Xifra


Knowing well the weather station data that Revit will use for calculating the thermal demand is the amount, as it allows us modify it and check that come by default. In the following video is this consultation and edition: http://www.youtube.com/watch?v=iY12xkhhfuo


The dialogue “location” located on the “manage” we will serve to geographically locate the project. When defining this location we will have 2 options:   1. – Internet mapping service 2. – Default city list   We must remember that the Internet Mapping service option should be used for the conceptual design, while Default City […]

Building infiltration class

In the calculation of thermal loads Revit MEP offers us the possibility of regulating the flow due to infiltration. This rate with respect is regulated in three steps:   loose = 1,38 m³/h x m² – (0,076 CFM/Sq x ft) medium = 0,69 m³/h x m² – (0,038 CFM/Sq x ft) tight = 0,34 m³/h x m² – (0,019 […]

Building construction

Possibly the most important parameter in the calculation time of the thermal loads, and that from this are the thermal properties to assign each of the openings and closings of the building. There are two possible options: 1. – THE ARCHITECT HAS GIVEN TO THE MATERIALS THERMAL PROPERTIES This is the ideal situation. Here we […]

Checking the transmittance of the walls

Despite preconceived confidence when working with Autodesk software, is good from time to time make some little comparison exercise software to see if you have similar values. In this case, related to the calculation of thermal loads, I wanted to see if the transmittance of the walls which facilitates the Autodesk wiki with documents, is […]

Building service

In making the calculation of thermal loads, Revit gives us the option to choose the air conditioning system to be used to condition the building. What we must choose from the drop down menu does not offer, in this way, and from studies in a building type, a calculation Revit tighter as the HVAC system. […]