PDF Publication Title:
Text from PDF Page: 004
Figure 3: Schematic of the proposed hybrid geothermal – biomass energy systems for Cornell. The ‘DH’ scenario does not include an ORC unit. Red lines represent hot supply water and blue lines cold return water. Heat distribution network Because of low temperatures of economically accessible geothermal resources in the Northeast, the heat distribution system cannot use high-temperature steam as a transport medium. The proposed systems use pressurized liquid water at temperatures between 90°C and 140°C (195-285°F). The minimum supply temperature in the DH network was constrained by the requirements of the existing space heating systems in the campus buildings. The DH supply temperature could be lowered, which would increase the total efficiency of the system, but this would require significant amount of structural work and incurred costs in campus buildings. Thus, the existing components of space heating systems such as radiators, pipes, valves, air ducts etc. are maintained. The existing substations are replaced with units using plate and frame water-to-water heat exchangers. Approximately 20% of the district heating pipelines in the considered part of the network were replaced with pre-insulated pipes. Steam traps were removed and water circulation pumps were installed. The minimum mass flow rate in the DH network has been set at 30% of the nominal flow rate for a proper operation of the control valves and due to heat losses from supply pipes. Greenhouses The existing space heating systems in greenhouses are similar to the ones used in other campus buildings. They use 82.2°C (180°F) fluid, which requires high DH supply temperature. We replaced the existing installation with a low-temperature heating system. Our system consists of soil heating using fluid at 30-36°C (86-97°F) circulating in polyethylene tubes and a finned coil air heater. The proposed configuration is based on a study conducted at the Oregon Institute of Technology (Boyd et al., 2008). This system requires district heating input temperature of less than 68°C (155°F) and can use the return DH water from other campus buildings as a heat source. Retrofitting low-temperature space heating systems in greenhouses requires less structural work and lower capital investment compared to other Cornell buildings. Furthermore, soil heating is known to increase the productivity of plants. Organic Rankine Cycle (ORC) power plant The Organic Rankine Cycle unit used in „DH-ORC‟ scenario operates only during low heat demand conditions. The unit is shut down if its heat input drops below 40% of the nominal value. Due to seasonal variations in available heat, we proposed use of two lower capacity ORC plants instead of one big unit. Torrefied biomass boiler The torrefied biomass boiler supplements the geothermal system when the ambient temperature drops below its design value. The design ambient temperature is defined as the lowest outdoor temperature at which EGS alone can cover the total heat demand. Biomass which underwent torrefaction – a low temperature pyrolysis – resembles coal and can be easily stored thanks to its hydrophobic properties. Possible feedstocks for torrefaction include all types of woody biomass, agricultural residues, and switchgrass. In principle, all or most of the biomassPDF Image | PROPOSED HYBRID GEOTHERMAL - NATURAL GAS - BIOMASS ENERGY SYSTEM
PDF Search Title:
PROPOSED HYBRID GEOTHERMAL - NATURAL GAS - BIOMASS ENERGY SYSTEMOriginal File Name Searched:
SGP_TR_198_Lukawski.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)