Numerical simulation on convective thermal loss of a cavity receiver in a solar tower power plant

A review study on the modeling of high-temperature solar thermal collector systems

“…A review on the research studies on thermal losses from cavity receiver is presented in [134]. In order to consider the effect of wind, CFD models have been developed to study and predict the heat losses by natural [135][136][137], forced [116,138] and mixed convection [139,140]. Roldan et al [141] proposed a CFD model to investigate the thermal efficiency of an open volumetric receiver under wind and return-air conditions.…”

The influence of wall temperature distribution on the mixed convective losses from a heated cavity

“…Understanding of the convective heat losses from cavity receivers has been advanced by the numerical studies, some of which have investigated the influence of the temperature distribution (uniform and non-uniform) on the radiation heat losses (Asselineau, Abbassi & Pye 2014;Gil et al 2015;Sá nchez-Gonzá lez, Rodrí guez-Sá nchez & Santana 2016;Steinfeld & Schubnell 1993). However, the absolute validity of these assessments is not yet known because no data has previously been available with which to validate them (Flesch et al 2014;Hu et al 2017;Lee et al 2017;Paitoonsurikarn & Lovegrove 2003;Paitoonsurikarn, S & Lovegrove 2002;Paitoonsurikarn, Sawat et al 2011;Wu, Xiao & Li 2011;Xiao, Wu & Li 2012). Furthermore, most previous numerical analyses on convective heat losses have been performed for a uniform wall temperature distribution, probably largely due to a lack of experimental data for model validation (Ho & Iverson 2014;Stalin Maria Jebamalai 2016).…”

The influence of wind speed, aperture ratio and tilt angle on the heat losses from a finely controlled heated cavity for a solar receiver

“…This leads to a broad temperature distribution within the cavity, with the temperatures of the cavities far from being uniform. Nevertheless, this assumption was made for most of the previous numerical studies (Flesch et al, 2014;Hu et al, 2017;Lee et al, 2017;Paitoonsurikarn et al, 2004;Taumoefolau et al, 2004;Wu et al, 2011;Xiao et al, 2012), even though is known to be incorrect. To reliably validate numerical simulation models, new experimental data is required for more accurate data to reproduce the uniform internal wall temperature cases.…”