PDF Publication Title:
Text from PDF Page: 022
• Interest rate and project lifespan. The analysis assumes a 5 percent interest rate and a 20 year lifespan. The analysis calculates the cost to generate electricity under each of the three digester gas utilization cases using the thermal energy requirement for anaerobic digesters28 (Table 9) and CHP prime mover price and performance specifications (Table 11). 4.2.2 Heating Requirements of Wastewater Treatment Facilities A critical characteristic of any economic CHP application is to use as much CHP thermal output as possible. For WWTFs, recovered thermal energy from CHP can be used for digester heating and space heating. This subsection presents a discussion of the heating requirements of WWTFs and develops estimates of the thermal energy requirements for anaerobic digesters used in the CHP cost-to-generate estimates. It also presents the results of an analysis of how much CHP thermal output can be utilized to meet space heating requirements at WWTFs. Thermal Energy Requirements for Anaerobic Digesters Climate is the most important factor determining digester heating requirements. When ambient air and sludge temperatures are low, it takes more energy to heat the digesters. The United States can be divided into five different climate zones29 based on cooling and heating degree days: Zone 1 – Cold climate with more than 7,000 heating degree days Zone 2 – Cold/moderate climate with 5,500 to 7,000 heating degree days Zone 3 – Moderate/mixed climate with 4,000 to 5,500 heating degree days Zone 4 – Warm/hot climate with fewer than 4,000 heating degree days and fewer than 2,000 cooling degree days Zone 5 – Hot climate with fewer than 4,000 heating degree days and more than 2,000 cooling degree days Figure 1 shows the five U.S. climate zones by state. (States that span more than one zone are assigned to the zone that covers most of the state.) 28 Greater thermal energy requirements for anaerobic digesters means that there is less CHP recovered heat available to displace purchased natural gas for space heating loads, resulting in a smaller thermal credit. 29 U.S. Energy Information Administration, Commercial Buildings Energy Consumption Survey, Washington, DC, 2003. 15PDF Image | Combined Heat and Power at Wastewater Treatment Facilities
PDF Search Title:
Combined Heat and Power at Wastewater Treatment FacilitiesOriginal File Name Searched:
Wastewater-combined_heat_and_power_at_wastewater_treatment_facilities.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 | RSS | AMP |