Title: Simulation of geothermal district heating systems

Abstract

District heating systems are preferable compared to
individual heating systems as the heating method is
economical, safe and less pollution. Fossil fuels have been
used in most of the district heating systems but nowadays
geothermal energy is being used in many systems where
geothermal energy is available.
Simulation methods enable us to follow behavior of the flow
as well as indoor temperature in each building and pressure
at every point in the system on hour by hour basis and hereby
determine system behavior both during cold waves, and also
over long periods of time. In order to use these simulation
methods on a district heating system, a fictitious town has
been made, and is chosen to be located somewhere in Turkey .
The buildings are assumed to be built according to usual
Turkish construction methods.
Weather data for this fictitious town is simulated by using
temperature variations of the year 1981 in Reykjavik added to
the average climate of Denizli, Turkey.
This study is based on the Icelandic method of the design of
geothermal district heating systems. However the real
weather data from Turkey has been used to evaluate the heat
loss of the model building and the heat load of the simulated
district heating model network.