A systematic review on parametric dependencies of transpired solar collector performance

Abstract

Summary Zero or low‐carbon buildings can be achieved through novel technology solutions and integrating renewable energy into the buildings. One method of reducing the fossil fuel dependency of buildings and limiting greenhouse gas emissions is integrating the solar thermal system into the built environment. Recently, transpired solar collector has been identified as 1 of the most efficient solar thermal conversion technologies where a very high efficiency can be achieved. The proposed review paper investigates the performance of transpired solar collectors (TSCs) and discusses the relevant case studies in this context. This paper introduces the background and concept of TSCs. It mainly focuses on the study of parametric dependency of the performance of TSCs. The paper also investigates various mathematical models, experimental study, and numerical simulations particularly CFD used for TSC performance analysis. This proposed paper concluded that wind speed and airflow rate are the most dominant factor in TSC performance but solar irradiation, hole diameter, hole geometry, and pitch size have limited effect on TSC performance; also, profile with longer pitch tends to lower the collector efficiency and heat transfer coefficient. However, profile with shorter pitch tends to reduce the wind effect.

Enhancing solar façade thermal performance with PCM spheres: A CFD investigation

“…RNG k-ε turbulence model combined with Enhanced Wall Treatment option has been set. For this particular type of study, namely Transpired Solar Collectors, RNG k-ε turbulence model seems to be a good choice as a turbulence model regarding the accuracy, numerical stability, and computing time (Bake et al, 2019; Bejan et al, 2019c; Bode et al, 2020; Li et al, 2013; Wang et al, 2017). These modeling techniques improve the convergence and accuracy of results especially for cases with low y +, which is our situation.…”

Numerical Simulation Investigation of a Double Skin Transpired Solar Air Collector

“…According to the literature, the RNG k-ε turbulence model is the most appropriate and reasonable when considering accuracy and computing time for numerical simulations regarding Transpired Solar Collectors [13,19,20]. Thus, we set the RNG k-ε turbulence model combined with the Enhanced Wall Treatment option including thermal effects and pressure gradients.…”

“…Other parameters, like the pressure drop inside the solar collectors, show a significant role in the design of such systems [12]. It has been found that wind speed and airflow rate are the most influent parameters on transpired solar collector performance [13]. Seminal contributions have been made by Croitoru et al regarding the influence of the perforation shapes on the absorber plate [14], showing that round holes have lower heat transfer than lobed geometries by about 15%.…”

Pilot study on building‐integrated PV: Technical assessment and economic analysis

“…Because of the utilization of natural lighting in skylights and classrooms, the rated power consumption totals up to be a mere 8% of the total rated power for the whole university. Other utilitarian consumers are the data centre, elevators, chilled water T A B L E 2 Comparative study of BIPV work and the proposed research highlight 19,[41][42][43][44][45][46][48][49][50][51][52][53][54][55][56][57][58][59][60] No. Predicted energy outputs from array side and grid input side decrease in a few months because of influence from weather parameters, module temperature, and other system components.…”