Heat transfer mathematical model for a novel parabolic trough solar collecting system with V-shaped cavity absorber

Numerical Thermal Study of Heat Transfer Enhancement in Laminar-Turbulent Transition Flow Through Absorber Pipe of Parabolic Solar Trough Collector System

“…The effect of conical angle and insulation thickness on cavity receiver output using the CFD ANSYS 17.0 is studied (Zhang et al 2020) and validated by comparison with experiment data using a hybrid optics and heat transfer model; the results showed that the optimal value of insulation thickness is 175 mm, achieving 70.4 percent overall efficiency. A heat transfer model has been developed for a novel solar parabolic trough collection system with a V-shaped cavity absorber (Bie et al 2020); the results of the analysis show that the model measurement error lies primarily in the effect of the variance of wind speed and the difference between the theoretical and real rate of increase in temperature with the sudden changes in solar Direct Normal Irradiation (DNI). A coupled simulation technique was used (Madadi, Rahimi, and Divband 2020) to solve the radiation, convection, and conduction heat transfer inside the solar water heating system of the parabolic trough collector (PTC); the location of the receiver pipe relative to the PTC significantly affects the thermal efficiency of the system and the absorber pipe's daily thermal efficiency is about 70 %.…”

Multiobjective design optimization of parabolic trough collectors

“…They employed the mathematical model for performance analysis and parametric study of dish collectors including their environmental effects. Bie et al 13 developed a novel mathematical model for V-shaped absorber PTC based on a thermal-resistance network method. Their model was validated using experiments under different weather conditions.…”

Feasibility of realizing daytime solar heating and radiative cooling simultaneously with a novel structure

“…Solar heating (hereafter referred to as the 'SH') is one of the dominant solar energy technologies, converting most incident solar radiation into heat using a solar thermal collector [6,7].…”