Fig. 1 Schematic of a generic one-axis-tracking solar trough concentrator showing main components More about this image found in Schematic of a generic one-axis-tracking solar trough concentrator showing ...

Fig. 2 Cross section of a solar trough concentrator with a circular mirror coupled to a circular receiver showing the main geometrical parameters More about this image found in Cross section of a solar trough concentrator with a circular mirror coupled...

Fig. 3 Three regimes producing different conditions for determining the minimum receiver size: ( a ) rim ray regime where the receiver is sized based on the edge rays reflected from the rim alone, ( b ) caustic regime where the receiver is sized based on the left edge ray caustic and the right edg... More about this image found in Three regimes producing different conditions for determining the minimum re...

Fig. 4 Geometric concentration ratio versus rim angle for a collector designed for 1 deg acceptance using the approximate solution. The solid line shows the rim ray and caustic regimes, and the dashed line shows the two-reflection regime. The receiver radius corresponds to a mirror radius of R =... More about this image found in Geometric concentration ratio versus rim angle for a collector designed for...

Fig. 5 Dependence of geometric concentration ratio on acceptance angle for different values of φ rim More about this image found in Dependence of geometric concentration ratio on acceptance angle for differe...

Fig. 6 Comparison of geometric concentration limits for several concentrator geometries with an acceptance angle of ( a ) 1 deg and ( b ) 10 deg. The curves are labeled as follows: circ/circ—circular trough with circular receiver, circ/flat—circular trough with flat receiver, parab/flat parax—para... More about this image found in Comparison of geometric concentration limits for several concentrator geome...

Fig. 7 Schematics of six exemplary circular trough designs. Designs ( a )–( d ) correspond to an acceptance angle of 1 deg with rim angles φ rim = 2 ω rim of 36 deg, 60 deg, 118.66 deg, and 140.66 deg respectively. Designs ( e ) and ( f ) correspond to an acceptance angle of 10 deg with rim ... More about this image found in Schematics of six exemplary circular trough designs. Designs ( a )–( d ) co...

Fig. 8 Full transmission angle curve for Design ( b ) which has θ i = 1 deg and φ rim = 60 deg. The curve is divided into four separate transmission zones. Each zone is paired with a snapshot of the MCRT simulation to highlight the main features of each zone. The transmission angle curve for... More about this image found in Full transmission angle curve for Design ( b ) which has θ i = 1 deg and...

Fig. 9 Transmission angle curves for the six exemplary designs specified in Fig. 7 . The figure panels are labeled to match the lettering of each design, Design ( a ) through Design ( f ), as shown in Fig. 7 . More about this image found in Transmission angle curves for the six exemplary designs specified in Fig. ...

Fig. 10 3D flux distribution corresponding to Design ( b ) for the realistic case including surface error and sunshape More about this image found in 3D flux distribution corresponding to Design ( b ) for the realistic case i...

Fig. 11 Flux distributions corresponding to the exemplary designs ( a )–( f ) defined in Fig. 7 . The figure panels are labeled to match the lettering of each design. Solid lines correspond to Case 1: a perfectly specular mirror with a source that fills the acceptance cone. Dashed lines correspon... More about this image found in Flux distributions corresponding to the exemplary designs ( a )–( f ) defin...

Fig. 12 Comparison of the exact and approximate solution for ω * for an acceptance angle θ = 1 deg More about this image found in Comparison of the exact and approximate solution for ω * for an acceptance...

Fig. 13 Critical and maximum ω as a function of the acceptance angle θ i More about this image found in Critical and maximum ω as a function of the acceptance angle θ i

Fig. 1 Traditional single slope solar still (TSS): ( a ) three-dimensional views of TSS, in mm and ( b ) photographic view of TSS More about this image found in Traditional single slope solar still (TSS): ( a ) three-dimensional views o...

Fig. 2 Conical solar still (CSS): ( a ) three-dimensional views of CSS, in mm, and ( b ) schematic diagram of CSS system, where 1: Two pipes of freshwater produced; 2: scale container; 3: Two pipes of return saline water from the solar still; 4: External storage saline water tank; 5: PV- powered p... More about this image found in Conical solar still (CSS): ( a ) three-dimensional views of CSS, in mm, and...

Fig. 3 Manufacturing process of conical solar still (CSS) More about this image found in Manufacturing process of conical solar still (CSS)

Fig. 4 A schematic diagram of the energy flux for the current study More about this image found in A schematic diagram of the energy flux for the current study

Fig. 5 A schematic diagram of energy flux of external water storage tank More about this image found in A schematic diagram of energy flux of external water storage tank