PDF Publication Title:
Text from PDF Page: 190
166 The explicitly discretized versions of equations B.1 and B.2 can be simplified by adding the following constraint: ρAε∆x m ∆t= f c = f [B.7] Constraining the time step in this way has the effect of eliminating the convective energy transfer terms from the energy balance. The details of this derivation are shown by McMahan [2006]. Equations [B.1], [B.2] and [B.7] yield fluid and solid nodal energy balances of the following form: Tf,(i,t+∆t) =Tf,(i−1,t) −hAnode(Tf,(i−1,t) −Ts,(i,t)) [B.8] m& f C f Ts,(i,t+∆t) =Ts,(i,t) +hAnode∆t(Tf,(i−1,t) −Ts,(i,t)) [B.9] msCs Type 994 further simplifies equations [B.8] and [B.9] by assuming an effectively infinite overall fluid-solid heat transfer coefficient. That is, the fluid and solid are in thermal equilibrium at every point in the computational domains:Tf ,(i+1,t+∆t) =Ts,(i,t+∆t) . With this simplification equations [B.8] and [B.9] become a single equation: Tf,(i,t+∆t) =Ts,(i−1,t+∆t) =Tf,(i−1,t)m&fCp,f∆t+Ts,(i,t)msCp,s [B.10] m& f C p , f ∆ t + m s C p , s Equation [B.10] is then integrated forward in time to determine temperature as a function of location and time within the storage system. Equation B.7 requires that Type 994 operate on a different timescale than TRNSYS. In order to accommodate these disparate time steps, the number of time steps taken by Type 994 (InternalTimesteps) during each TRNSYS time step is defined by the following expression: InternalTimesteps = ∆tTRNSYS [B.11] ∆t994 To accommodate the different time steps used by Type 994 and TRNSYS the outputs returned to TRNSYS are the integrated averages over the smaller time steps taken by Type 994. Material and transport properties are based on user input. Temperature-correlated properties that are calculated at each node and time step are available for a number of potential storage fluids: FluidNumber 1 Nitrate Salt 2 CaloriaTM HT-43 3 Hitec XL 4 Therminol VP-1 5 Hitec 6 Dowtherm Q 7 Dowtherm RP 8 Xceltherm®600 m& f m& fPDF Image | Organic Rankine Cycle Solar-Thermal Powerplants
PDF Search Title:
Organic Rankine Cycle Solar-Thermal PowerplantsOriginal File Name Searched:
111789951_ORCPowerplants.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)