Title: Design of a district heating system for the Hammam Righa spa, Algeria

Abstract

Experience has shown that geothermal energy has a large field
of applications: electricity production, aquaculture (fish
farming), industrial drying, greenhouse heating and district
heating. The present project deals with this last
application. The main aim of the study is an attempt to
master a methodology for the design of district heating
system. The district system considered as an example is a
group of bungalows situated in a geothermal area in Algeria.
The geothermal source gives 67 · C hot water. The power demand
of the system has been evaluated through the analysis of the
weather data of the area and calculation of the heat loss of
the buildings. A district heating system has been designed on
basis of the results. A cost estimation of the system
indicates reasonable heating cost for the spa.
The study also includes a dynamic simulation of the system in
order to predict the indoor temperature during a simulated
cold spell with a duration of few days.