PDF Publication Title:
Text from PDF Page: 008
Energies 2022, 15, 6331 8 of 33 However, the above relationship applies to general cases. In the following work, an empirical coefficient was used to indicate the relationship between salt concentration in the feed water, freshwater, and wastewater. Separate values of osmotic pressure IIf, IIb, IId, respectively, were determined for each flux value [38]: Πf =75.84·Xf (10) Πb = 75.84 · Xb (11) Πd = 75.84 · Xd (12) The calculated values allowed to determine the average osmotic pressure on the membrane IIa: Net osmotic pressure ∆II was determined as the difference between the average value of the parameter describing the wastewater stream: ∆Π = Πa − Πd (14) Π =Π +Π·0.5 (13) afb Net pressure difference ∆P was calculated from the above results: Md ∆P= 3600·TCF·FF·A ·n ·n ·k −∆Π (15) eevw While pump power required, HP, for a reverse osmosis-based system is: 100·Mf ·∆P HP= 3600·ρ ·η (16) FP As for the other components of the system, the steam boiler model is based on the definition of boiler efficiencies provided by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) [39], while the steam turbine model was adopted on the basis of an isentropic efficiency approach to calculate the performance of the component [40]; this method is widely adopted in the literature for purposes of simulating steam turbines. The condenser model implements the pinch-point temperature difference method in order to determine the heat transfer among the cooling liquid and condensing steam [41]. The tank used as the thermal energy storage is modeled as a tank interacting with the environment, with two flows supplied to the source and load side of the tank. Experimental validation of this model is presented in Ref. [42]. 3.1. Layout and Control Strategy of the System The proposed system consists of a water–steam power cycle, a wind turbine, and a photovoltaic field for the generation of electrical energy, and a battery system for its storage. Moreover, the system is equipped with a generator set operating with LPG in order to match the user’s electrical demand when needed. The thermal energy rejected by the condenser of the cycle is used by the adsorption chiller to produce chilled water during the cooling season, and as a heat source during the winter season for the space heating purposes of the user. During the whole year, the heat cogenerated by the steam cycle is also used to produce domestic hot water. The system also includes a reverse osmosis unit, which utilizes part of the electrical energy produced by the hybrid system. The unit takes the seawater, then stores the produced freshwater in a tank, while the brine is pumped back into the sea. The layout of the system, including crucial components and loops, is shown in Figure 2.PDF Image | Hybrid Polygeneration System Based on Biomass Wind and Solar Energy
PDF Search Title:
Hybrid Polygeneration System Based on Biomass Wind and Solar EnergyOriginal File Name Searched:
energies-15-06331-v2.pdfDIY PDF Search: Google It | Yahoo | Bing
Turbine and System Plans CAD CAM: 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. More Info
Waste Heat Power Technology: Organic Rankine Cycle uses waste heat to make electricity, shaft horsepower and cooling. More Info
All Turbine and System Products: Infinity Turbine ORD systems, turbine generator sets, build plans and more to use your waste heat from 30C to 100C. More Info
CO2 Phase Change Demonstrator: CO2 goes supercritical at 30 C. This is a experimental platform which you can use to demonstrate phase change with low heat. Includes integration area for small CO2 turbine, static generator, and more. This can also be used for a GTL Gas to Liquids experimental platform. More Info
Introducing the Infinity Turbine Products Infinity Turbine develops and builds systems for making power from waste heat. It also is working on innovative strategies for storing, making, and deploying energy. More Info
Need Strategy? Use our Consulting and analyst services Infinity Turbine LLC is pleased to announce its consulting and analyst services. We have worked in the renewable energy industry as a researcher, developing sales and markets, along with may inventions and innovations. More Info
Made in USA with Global Energy Millennial Web Engine These pages were made with the Global Energy Web PDF Engine using Filemaker (Claris) software.
Sand Battery Sand and Paraffin for TES Thermo Energy Storage More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)