PDF Publication Title:
Text from PDF Page: 014
Mathematics 2021, 9, 33 14 of 31 s s s 1 1 −1 F′=WULss sss+ss (3) (4) (5) UL[D +(M −D )F ] Fs = tanh[ζs(Ms − Ds)/2] πDihc,w ζs(Ms − Ds/2) Us ζs = L k sp t sp The temperature of the absorber plate is calculated through an iterative method by the solution of Equations (1)–(5) coupled with: Ts =Ts+Qsu/Asc(1−Fs) (6) p 2 FRsULs R The total absorbed solar radiation (S) is evaluated by considering the beam and dif- fused components of incident solar radiation along with the incorporation of optical losses (i.e., transmittance-absorptance product). Ss = Ibs(τα)sb + Ids(τα)sd (7) The transmittance-absorptance product is calculated separately for beam and diffused radiation. s τ bs , d α sp (τα)b,d= s s (8) 1− 1−αp R Fresnel’s expressions [61] are derived for the reflection of unpolarized radiation passing from medium 1 to medium 2 with different refractive indexes given the angle of incidence and refraction for the parallel and perpendicular components of the beam and diffused radiation. This procedure gives two Fresnel’s expressions of the beam and dif- fused radiation with averaged parallel and the perpendicular component of each one, and finally, it is used to calculate the transmissivity of solar radiation from the glass cover to the absorber plate. Along with that, the incident angle for direct radiation is the angle of incidence, given by: cosθbs = sinδs sinφs +cosδs cosφs cosωs (9) Afterwards, Snell’s law [61] is utilized to obtain the refractive angles from the glazing. By taking into account the top heat loss coefficient only, the overall heat loss coefficient Utsop is computed as follows. 1 1−1 Utsop= hs +hs +hs +hs (10) c,g−a r,g−a c,p−g r,p−g The bottom and side heat loss coefficients are considered negligible. Practically, it can be made possible through the usage of insulation materials which can be glass mineral roll [65], rice husk and sunflower stalks [66], petiole piece, fibres and gypsum [67], and mineral wool [68]. The convective heat transfer coefficient is calculated using [61,69]: hsa = 5.7 + 3.8vsa (11) The method proposed in [70] is used to compute the Nusselt number between the absorber plate and the glass cover. Rasp−g1/3 + 1708 + Nusp−g=1+ 5830 −1 +1.44 1−Ras (12) p−gPDF Image | Humidification Dehumidification Solar Desalination System
PDF Search Title:
Humidification Dehumidification Solar Desalination SystemOriginal File Name Searched:
mathematics-09-00033.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)