Maul, Lukas Johannes
Advisor: DI Friedrich Brandstetter
Contact: [email protected]
Solar Thermal Energy in Mongolia
Planning of a solar thermal heat supply system for the Mongolian
University of Science and Technology in Ulaanbaatar (09/10 - 01/11)
Basic Information
The University Building with a gross floor area of 1900 m² is situated in the outer bounders of the
Mongolian capitol Ulaanbaatar. The building itself is in a desolate manor and within another scientific
paper, a renovation was simulated. The simulation concluded in three different values for the Heat
Energy Demand (HED), dependent on the quality of the building standard such as insulation thickness,
used windows, etc. presented in the table below. The two pictures on the right show the building in its
actual condition and an original scheme of it.
Building Heat Energy Demand
HED GFA [kWh/m²a]
Total HED [kWh/a]
50
75
100
95000
142500
190000
3 different solar collector scenarios
The roof of the three storey building has a tilt of 16.5° and the buildings azimuth angle amounts to -22°.
To get the knowledge whether a flat or elevated mounting system suites best for the building, the
following 3 different scenarios were investigated.
Scenario 1
Mounting System
Tilt
Number of collectors
Collector area
Flat Mounting
16.5°
12
216 m²
Scenario 2
Elevated Mounting
46.5°
12
144 m²
Conclusion
Solar Roof
60°
6
108 m²
Solar Fraction Scenario 2
30
[%]
The simulation showed that scenario 2 would suite best for
a solar thermal heating supply of the building with up to
29% solar fraction.
By using this solar system in addition to the coal fired
oven, an amount of up to 20 tons of CO2eq. could be saved
during the heating period per year. Regarding the harsh
fine dust situation in Ulaanbaatar, the use of solar systems
could really help becoming less dependent from coal
heating systems and also preserve the health of both the
environment and the citizens.
Scenario 3
25
20
50 kWh/m²
75 kWh/m² 100 kWh/m²
HED GFA