Building simulation

Building simulation is a tool that is used to calculate the energy needs of a building and to determine comfort-related aspects.

Analyzing the results provides information regarding the energy required, the loads that occur (due to computers, for example), or about room temperatures that may occur at a specific time of day. Building simulation is also a reliable calculation process that can be used to establish the limits of alternative climate control technologies, which offer significant energy-saving potential.

Dynamic building simulation can be used to answer the following questions:

• What are the annual energy needs of a building?
• How much energy does the building need per year for heating?
• How much energy does the building need per year for cooling?
• Does overheating occur in the rooms during the summer months?
• What room temperatures occur during periods of warm weather?
• What temperatures occur inside the building during the course of the year?

System simulation

In many buildings, air-conditioning and ventilation systems work reliably, but lack a defined regulation strategy.

By changing the characteristic parameters in line with the needs and wishes of the user, systems can actually save energy. The settings are adjusted using various simulation tools. What is more, individual components can be simulated and analyzed in more detail:

• How much energy does the air-conditioning and ventilation system consume?
• Is it possible to achieve energy savings?
• How much energy can be saved?
• How efficient is the air-conditioning and ventilation system?

Flow simulation

Digital simulations can be used to simulate room flows and temperature distributions.

The calculations will provide information about the air speed and the temperature profile in the room.
This method is used to determine the location of air outlets, as well as for the evaluation of façades.

Daylight simulation

A near-reality simulation on the computer makes it possible to gain an impression of how the planned building will look when flooded with natural daylight.

The aim is to minimize the use of artificial lighting by making smart use of natural daylight and deploying lighting control strategies.

Pipe network simulation

In many cases, existing pipe networks do not guarantee the desired security of supply and would benefit significantly from optimization.

Networks that are not operating correctly can have a significant effect on the working operations of a company and increase energy consumption. In this regard, the ieg proposes solutions that ensure trouble-free operation.

The services provided include the charting of the network using CAD or CAFM. During a subsequent pipe network simulation, the actual situation is compared with the target situation and various possible solutions are then worked out.