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Solar cooling for small office buildings: Comparison of solar thermal and photovoltaic options for two different European climates

Hartmann, Niklas; Glück, Christian; Schmidt, Ferdinand P.

We present a comparison of solar thermal and solar electric cooling for a typical small office building exposed to two different European climates (Freiburg and Madrid). The investigation is based on load series for heating and cooling obtained previously from annual building simulations in TRNSYS. A conventional compression chiller is used as the reference system against which the solar options are evaluated with respect to primary energy savings and additional cost. A parametric study on collector and storage size is carried out for the solar thermal system to reach achieve the minimal cost per unit of primary energy saved. The simulated solar electric system consists of the reference system, equipped with a grid connected photovoltaic module, which can be varied in size. For cost comparison of the two systems, the electric grid is assumed to function as a cost-free storage. A method to include macroeconomic effects in the comparison is presented and discussed.
Within the system parameters and assumptions used here, the grid coupled PV system leads to lower costs of primary energy savings than the solar thermal system at both loc ... mehr

Zugehörige Institution(en) am KIT Fachgebiet Strömungsmaschinen (FSM)
Publikationstyp Zeitschriftenaufsatz
Jahr 2011
Sprache Englisch
Identifikator ISSN: 0960-1481
KITopen ID: 1000022216
Erschienen in Renewable Energy
Band 36
Heft 5
Seiten 1329-1338
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