The nonlinear behaviour of many solar energy systems requires consideration
of the fluctuating nature of solar radiation. Utilizability curves
constructed for this purpose consider the radiation fluctuation on
the basis of hourly or daily insolation values. Solar collectors,
however, do not see radiation fluctuations in terms of hourly or
daily insolation values, but respond to instantaneous radiation fluctuations
caused by clouds. The fluctuation of instantaneous and short-time
integrated radiation has been shown to differ significantly from
that of daily insolation. This paper presents utilizability curves
constructed from the cumulative probability distribution of instantaneous
terrestrial insolation values. It is shown that hourly and daily
utilizability curves give a conservative estimate of long-term performance.
Experimental measurements of the collector performance further suggest
the use of instantaneous utilizability curves in place of daily curves.
The effect of the collector time constant on utilizability is discussed.
%0 Journal Article
%1 Suehrcke.McCormick1989
%A Suehrcke, H.
%A McCormick, P. G.
%D 1989
%J Solar Energy
%K curves daily insolation, integrated radiation, short-time solar utilizability
%N 6
%P 339--345
%T Solar radiation utilizability
%V 43
%X The nonlinear behaviour of many solar energy systems requires consideration
of the fluctuating nature of solar radiation. Utilizability curves
constructed for this purpose consider the radiation fluctuation on
the basis of hourly or daily insolation values. Solar collectors,
however, do not see radiation fluctuations in terms of hourly or
daily insolation values, but respond to instantaneous radiation fluctuations
caused by clouds. The fluctuation of instantaneous and short-time
integrated radiation has been shown to differ significantly from
that of daily insolation. This paper presents utilizability curves
constructed from the cumulative probability distribution of instantaneous
terrestrial insolation values. It is shown that hourly and daily
utilizability curves give a conservative estimate of long-term performance.
Experimental measurements of the collector performance further suggest
the use of instantaneous utilizability curves in place of daily curves.
The effect of the collector time constant on utilizability is discussed.
@article{Suehrcke.McCormick1989,
abstract = {The nonlinear behaviour of many solar energy systems requires consideration
of the fluctuating nature of solar radiation. Utilizability curves
constructed for this purpose consider the radiation fluctuation on
the basis of hourly or daily insolation values. Solar collectors,
however, do not see radiation fluctuations in terms of hourly or
daily insolation values, but respond to instantaneous radiation fluctuations
caused by clouds. The fluctuation of instantaneous and short-time
integrated radiation has been shown to differ significantly from
that of daily insolation. This paper presents utilizability curves
constructed from the cumulative probability distribution of instantaneous
terrestrial insolation values. It is shown that hourly and daily
utilizability curves give a conservative estimate of long-term performance.
Experimental measurements of the collector performance further suggest
the use of instantaneous utilizability curves in place of daily curves.
The effect of the collector time constant on utilizability is discussed.},
added-at = {2011-09-01T13:26:03.000+0200},
author = {Suehrcke, H. and McCormick, P. G.},
biburl = {https://www.bibsonomy.org/bibtex/2bee16fd3f28de851c85675ba6192cae0/procomun},
file = {Suehrcke.McCormick1989.pdf:Suehrcke.McCormick1989.pdf:PDF},
interhash = {52848946f5e365329528ef8c672b0eee},
intrahash = {bee16fd3f28de851c85675ba6192cae0},
journal = {Solar Energy},
keywords = {curves daily insolation, integrated radiation, short-time solar utilizability},
number = 6,
owner = {oscar},
pages = {339--345},
refid = {Suehrcke.McCormick1989},
timestamp = {2011-09-02T08:25:25.000+0200},
title = {Solar radiation utilizability},
volume = 43,
year = 1989
}