PDF Publication Title:
Text from PDF Page: 018
Table 2 Furnace Efficiency Increases with Combustion Air Preheat Combustion Air Preheat Temperature 400°F [204°C] 600°F [316°C] 800°F [427°C] 1,000°F [538°C] 1,200°F [649°C] Furnace Outlet Temperature 2,600°F [1,427°C] 2,400°F [1,316°C] 2,200°F [1,204°C] 2,000°F [1,093°C] 1,800°F [982°C] 1,600°F [871°C] 1,400°F [760°C] Source: EPA 2003, Wise Rules for Energy Efficiency. Based on a natural gas furnace with 10% excess air. 1.2 Need for This Study The purpose of this report is to identify RD&D efforts required to expand waste heat recovery practices across the U.S. industrial sector. Numerous sources indicate a significant percentage (2050%) of industrial energy inputs is lost as waste heat, totaling anywhere from 5 to 13 quadrillion Btu/yr.† However, there is a dire lack of information on the source of the largest waste heat losses in different sectors and processes and the nature of different waste heat sources (e.g., the waste heat quality and chemical composition) — knowledge of these factors is critical in determining the feasibility and extent of opportunity for waste heat recovery. This study identifies RD&D needs built on a thorough investigation of waste heat losses and barriers across various energyintensive processes/equipment. Previous analysis of nationwide waste heat losses includes studies by Energetics,3 PNNL,4 EPA,5 and Cooke6 (Table 3). The Energetics study conducted in 2004 evaluates energy losses at multiple stages of manufacturing. It does not quantify waste heat losses, but acknowledges that these losses may total 20 50% of energy delivered to plants. The study also uses rough approximations of efficiency improvement opportunities to estimate that 1.6 quadrillion Btu/yr could be saved through various heat recovery efforts.‡ PNNL also conducted a study in 2006 that included estimates of chemical energy in waste heat streams (e.g., the chemical energy of uncombusted CO, CH4, etc.). Another study by EPA in 1984 used stack temperature databases to estimate waste heat losses; limitations of that study include that final exhaust temperatures were lower than furnace exit temperatures, and that the study was conducted over 20 years ago. This study further expands on previous studies by a) evaluating applicationspecific waste heat losses and recovery practices, and b) evaluating the quality/work potential of waste heat. † Based on 25 quadrillion Btu of energy consumption, which excludes losses associated with electricity generation. US DOE EIA Annual Energy Review 2006. ‡ Energetics 2004, p. 72 Energy saving potential includes chemicals, petroleum, and forest product industries (851 TBtu), drying processes (377 TBtu), metals and nonmetallic minerals manufacture (235 TBtu), calcining (74 TBtu), and metal quenching/cooling (57 TBtu). 22% 30% 18% 26% 16% 23% 14% 20% 13% 19% 11% 17% 37% 43% 48% 33% 38% 43% 29% 34% 39% 26% 31% 36% 24% 29% 33% 22% 26% 30% 10% 16% 20% 25% 28% 3PDF Image | Waste Heat to Energy Tech Opportunities in US Industry
PDF Search Title:
Waste Heat to Energy Tech Opportunities in US IndustryOriginal File Name Searched:
waste_heat_recovery.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)