@article{Brötje2018cb,

title = {Performance and heat transfer analysis of uncovered photovoltaic-thermal collectors with detachable compound},

author = {S Brötje and M Kirchner and F Giovannetti},

doi = {10.1016/j.solener.2018.05.030},

issn = {0038-092X},

year  = {2018},

date = {2018-08-01},

journal = {Solar Energy},

volume = {170},

pages = {406-418},

abstract = {Concerning the manufacturing of uncovered, liquid-based photovoltaic-thermal (PVT) collectors, design requirements or low expenses have higher priority than the all-out optimization of the thermal efficiency. The specific impact of inevitable thermal resistances caused by wavy surfaces and imperfect contacts between PV modules and heat exchangers has not been comprehensively investigated yet. This paper focuses on the performances of uncovered PVT collectors with detachable mounting of PV modules on heat exchangers and the effect of macroscopic air gaps. Two prototypes with thin film modules were built without using silicon glue, other adhesives or heat conductive paste. Measured in sun simulator in electrical open-circuit mode, the thermal zero-loss efficiencies for the adhesive-free collectors are η0},

keywords = {},

pubstate = {published},

tppubtype = {article}

}