TY - JOUR

T1 - Thermotropic overheating protection for façade-integrated solar thermal collectors

AU - Resch-Fauster, Katharina

AU - Weber, Andreas

AU - Holper, Stefan

AU - Grobbauer, Michael

PY - 2017

Y1 - 2017

N2 - The capability of thermotropic glazing to reduce stagnation temperatures in solar thermal collectors is evaluated in in-situ testing (south-façade of an office building). Therefore, a thermotropic formulation which is curable by sunlight and which exhibits both, excellent light-shielding characteristics (transmittance reduction by ~20%) and long-term stability is specifically designed. Application relevant overheating protection efficiency is given: absorber temperatures are reduced by up to 29 K in collector stagnation. Performance characteristics are not changed during the six month period of in-situ testing. The application demonstration emphasizes the high innovative capacity of thermotropic materials.

AB - The capability of thermotropic glazing to reduce stagnation temperatures in solar thermal collectors is evaluated in in-situ testing (south-façade of an office building). Therefore, a thermotropic formulation which is curable by sunlight and which exhibits both, excellent light-shielding characteristics (transmittance reduction by ~20%) and long-term stability is specifically designed. Application relevant overheating protection efficiency is given: absorber temperatures are reduced by up to 29 K in collector stagnation. Performance characteristics are not changed during the six month period of in-situ testing. The application demonstration emphasizes the high innovative capacity of thermotropic materials.

UR - http://dx.doi.org/10.1016/j.solmat.2017.05.060

M3 - Article

VL - 170

SP - 39

EP - 47

JO - Solar energy materials and solar cells

JF - Solar energy materials and solar cells

SN - 0927-0248

ER -