Analysis of solar shading caused by building-integrated Vertical Heliostat Fields

Modelling and simulation of Building-Integrated solar thermal systems: Behaviour of the coupled building/system configuration

“…The VHF reflects the radiation which is coming from the sun toward a common point where a solar receiver is placed for power generation or other high-temperature applications. González-Pardo et al [71] studied the optical performance of a VHF as a shading system and analysed the daylighting evolution inside a building as a function of VHF parameters (separation between heliostats, date, field zone, etc.). The results indicated that a field with reduced spacing between heliostats provided a good performance as an element for shading building façades.…”

“…Difusse irradiance model and isotropic ground-reflection model Yoshino et al [41] TRNSYS PV, EnergyPlus Artificial neural network model Hachem et al [44] Pérez-Alonso et al [46] Thermal simulation (emphasis: building) BI, skin façade TAS software Gratia and De Hendre [47] Thermal network approach Chan and Tzempelikos [48] Thermal simulation (emphasis: building/system) BI, solar thermal Detailed physical model, TRNSYS Maurer et al [51] 3D finite element models Detailed physical model Hassan and Beliveau [52] Detailed physical model, TRNSYS Bergmann and Weiß [49] Matouska and Sourek [50] BI, Trombe wall TRNSYS Nowzari and Atikol [53] BI, PVT Control volume, steady state, HOT 2000 simulations Chen et al [11] BI, PV TRNSYS Mei et al [54] BI, complex façade "Black box" model, ESP-r Kuhn et al [55] Energetic/thermal simulation (emphasis: building/ system) BI, solar collector Mathematical model Gao et al [58] BI, skin façade GenOpt, PSO, EnergyPlus Joe et al [59] BESP, CFD package Artificial neural network Pappas and Zhai [60] CFD, Fluent software Moon et al [61] Diarce et al[62] Tracepro, Montecarlo ray tracing, macros in SCHEME González-Pardo et al[71] Static coupling between CFD and building energy simulationManz and Frank …”

Analysis of glint and glare produced by the receiver of small heliostat fields integrated in building façades. Methodology applicable to conventional central receiver systems

“…As a result of all this, it was conceived the "Vertical Heliostat Field" (VHF) (González-Pardo et al, 2013, 2014. This concept proposes a solution to integrate solar http://dx.doi.org/10.1016/j.solener.2015.06.035 0038-092X/Ó 2015 Elsevier Ltd. All rights reserved.…”

Daylighting system based on single-axis polar heliostat

“…Consequently, the use of natural lighting elements in buildings reduces the economic costs for the inhabitants, favors a more comfortable environment, has a positive impact on health and improves the energy efficiency of the buildings [4][5][6]. For these reasons, in recent years, the use of systems based on heliostats to redirect sunlight towards the interior of buildings is increasing [7][8][9][10][11]. In that sense, Kischkoweit [12] presents a general revision of systems that use natural light, which recognise the systems based on heliostats as the most complex.…”