Heat Load Calculation

A heat or cool load calculation program must take various influences into account, such as basic loads (persons, appliances and lights), the sun light, the accumulation of heat into the walls, ... etc. The more influences are taken into account, the more accurate the results are. However, they also become more difficult to interpret, as it is not always easy to find out why the calculation led to the results.

Our software application has several important improvements over the more classical methods:

• We offer a powerful drawing tool to create a graphical representation of a floor plan, with all the necessary details to perform a heat or cool load calculation.
• We use a semi-dynamic method to calculate the heat through walls, taking heat accumulation into account. This is a very precise method to get more realistic load figures for the walls used. Static methods use predefined correction coefficients instead of calculated values for the constructions used.
• We make a clear distinction between radiation heat, sensible heat and latent heat. Radiation heat does not deliver a direct heat to the room air. Instead, the walls first absorb it, where it accumulates. They then deliver this heat as a function of time (through a heat exchange between the room air and the walls). The convection heat directly warms up the room air through heat exchanging. Latent heat is a measure for the moisture in the room.
• We provide a set of charts and graphs, where each influence can be displayed separately.
• We provide user-defined checks on the floor plans to find design flaws and oversights, before performing the heat or cool load calculation. This powerful feature helps in preventing wrong design decisions.