Fundamentals of Alternative Energy Sources

summer term 2019/2020

E162023, 2+1, classified assessment


Lectures to download

L1 – Solar energy

L2 – Solar collectors

L3 – Solar systems

L4 – Solar systems II

L5 – Components of solar systems

L6 – Heat pumps – principles

L7 – Heat pumps – sizing

L8 – Operation characteristics of heat pumps

L9 – Heat source for heat pumps

L10 – Biomass – energy

L11 – Biomass – combustion


Solar irradiance, solar irradiation, temperature tables

Heat pump parameters


Content of lectures – requirements

Solar energy – origin of solar energy, passing through atmosphere, calculation of solar irradiance on given plane

Solar collectors – introduction to solar collector types, performance characteristics, testing

Solar thermal systems – parameters, characteristics, types (hot water, space heating, swimming pool), components of solar systems

Design and evaluation of solar thermal systems – heat demand, calculation of collector area, simplified method of system energy gains evaluation

Heat pumps – basics, Carnot cycle, Rankine cycle, components of heta pump, parameters of heat pump, certification

Integration of heat pumps into energy systems of buildings, seasonal performance factor, hydraulics, storage volume

Heat sources for heat pumps – ground (boreholes, ground heat exchangers), air, water, design and construction

Seasonal performance of heat pumps – bin method, calculation of SPF, electricity demand, examples, comparison of different technologies


Recommended literature and links:

Deutsche Gesellschaft für Sonnenergie: Planning and Installing Solar Thermal Systems: A Guide for Installers, Architects, and Engineers, Earthscan, 2005
available online:

Karl Ochsner: Geothermal Heat Pumps: A Guide for Planning and Installing

available online: