Optimisation of a three-colour luminescent solar concentrator daylighting system

Rapid optimization of large-scale luminescent solar concentrators: evaluation for adoption in the built environment

“…If that maximum were to be used for the 100 × 100 × 0.5 cm 3 window, a lower efficiency of η 100 × 100 = 0.71 % would be obtained than when using α (λ = 474 nm) = 3.26 cm −1 yielding η 100 × 100 = 0.98 %. In line with [11,12], we can conclude that dye concentration optimization needs to be done for the actual geometry of the LSC, as opposed to a lab-scale device. The combination of MGLT with MC allows us to do such optimization quickly.…”

“…The analytical equations presented were solved for the simplified case of a semi-infinite rod. Most modern approaches to quantification of self-absorption are carried out with thermodynamic calculations [8][9][10], analytical models based on the Beer-Lambert law [11,12], or using Monte Carlo (MC) simulations [13][14][15][16][17][18][19][20], also referred to as raytracing. While MC simulations are relatively easy to implement, they rely on random numbers to calculate physical effects.…”

Spectral-based analysis of thin film luminescent solar concentrators

“…There is currently a renewed interest in this technology due to the availability of advanced materials (Ziessel et al, 2005;Currie et al, 2008;Mulder et al, 2009;Brühwiler et al, 2009;Earp et al, 2004) and sophisticated models to simulate the photon transport (Goldschmidt et al, 2008(Goldschmidt et al, , 2009. Major obstacles to be overcome are: limited stability of the luminescent species, high self-absorption, and poor knowledge of the parameters governing the efficiency 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 (Rowan et al, 2008).…”

Integration Issues for Using Innovative Daylighting Strategies in Light Wells

“…One of the most important advantages of this system is the collection of light regardless of the solar altitude angle (Smestad, et al, 1990). "One of the limitations of this system is its low efficiency as only 10% of the collected light transforms into output light" (Earp, et al, 2004).…”