Vorlesungen
Wintersemester 2022/23
Master Sustainable Systems Engineering
Solar Energy (11LE68V-8060)
by S. Glunz, M. Lämmle, P. Schossig, A. Heimsath
Contents:
- Solar Energy - Theoretical and Technical Energy Potential (black body radiation, Carnot cycle, maximum efficiencies,
- Solar Energy Technologies - Tapping the sun’s energy (overview of conversion technologies, system boundaries,seasonal fluctuation, ...)
- Photovoltaics - Physics of Solar Cells (introduction to semiconductors,Fermi levels, IV curves, conversion efficiency, quantum efficiency …)
- Photovoltaics - Technology Review (short introduction to the structure and technology of crystalline silicon solar cells)
- Solar Thermal - Physics of Solar Collectors (basics of thermo dynamics, fluid dynamics, absorption, emission, power output and other performance criteria)
- Solar Thermal - Technology Review (from low temperature applications up to power plants - examples)
- Heat pumps - Thermodynamics, electrical and thermal driven heat pumps and chillers, main components (compressor, evaporator, condensor etc.), system configurations (layout, sources, storages, control strategies etc )
- Heat pumps: field tests and best case examples - Heat pumps and smart grid interaction, Heat pumps and PV, Heat pumps + solar thermal, storage integration)
5 ECTS
Tuesday 16:00 - 18:00
Thursday 14:00 -16:00
Photovoltaic Laboratory (11LE68P-4108)
by S. Glunz, W. Kwapil
Contents:
A broad variety of laboratory experiments address the operating characteristics of solar cells and photovoltaic modules. Different experiments are performed each week of the laboratory course. These experiments include:
- Fundamental electric basics: series and parrallel connection of solar cells
- Geometrical aspects and environmental conditions: Illumination, angle of incidence and temperature dependence of the solar cell power
- Solar cell characterization: IV-curve in the dark and under illumination, maximum power point and fill factor
- Building up PV modules: I-V-characteristics of different solar modules and partial shading
- Working principle of mpp-tracking: DC/DC inverter
- Solar cells as power supply: on-load power and internal resistance
- Components and operation of a solar off-grid system
- Comparison and operation of different charge controllers: shunt-, series- and PWM regulator
- Discharge protection and DC/AC inverter
Friday 10:00-12:00