Waste Heat and Water Recovery System Optimization for Flue Gas

PDF Publication Title:

Waste Heat and Water Recovery System Optimization for Flue Gas ( waste-heat-and-water-recovery-system-optimization-flue-gas )

Previous Page View | Next Page View | Return to Search List

Text from PDF Page: 013

Sustainability 2019, 11, 1881 13 of 20 It eliminates all other configurations in terms of capital cost and power output desirability for the case of 20 ◦C. Although X is a two-stage configuration, for the fixed cooling temperature of flue gas to 40 ◦C, the vapor compression cycle in X results in a greater power loss than that of the pumped heat pipe cycle in A. Thus, X was not comparable to A for an ambient temperature of 20 ◦C in any way as it does not have any benefit over A and therefore was not considered. This is the most primary form of the WHWRS with the most benefits at hand at a generally common ambient temperature condition making A practically a desirable candidate for commercial purposes. 3.2. Constant Ambient Temperature At the ambient condition of 20 ◦C, net power output, exhaust gas outlet temperature, and water recovery were analyzed relative to the increase in system stages. To avoid any confusion, only the configuration optimized for maximum power output for that particular stage was considered. For example, among all five configurations, A and X are both two-stage configurations, but instead of X, the characteristics representing a two-stage system in this section are for the A configuration because it shows a higher net power output compared to that of X. Similarly, between H and B, B will be considered for the three-stage system for the same reason, while O is the only candidate for the 4-stage configuration. Figure 11 shows a graphical representation of the exhaust gas outlet temperature, water recovery, and net power output variation concerning the system stages that were optimized for maximum power output. Figure 11. Variation in exhaust gas outlet temperature, water recovery efficiency, and net power output with respect to the number of system stages at a constant ambient temperature of 20 ◦C. It can be seen that at the first stage there is no water recovery because at this stage only the ORC is being utilized for the 20 ◦C ambient temperature. The flue gas outlet temperature from the system is approximately 59 ◦C, which is higher than the dew point temperature of 55 ◦C of the moisture content present in the flue gas. However, the power output is the highest in this case relative to any other stage. The two-stage system has relatively less power output as it utilizes the pumped HPC system. Under a 20 ◦C ambient temperature condition, it can cool the flue gas below the dew point, down to 40 ◦C, increasing the water recovery efficiency from 0 to greater than 50% without a loss of a significant amount of power which it uses to operate the circulation pump of the pumped HPC system. The three-stage system represented utilizes a combination of a pumped HPC system and vapor compression cooling system because at a 20 ◦C ambient temperature and with our pinch point assumptions, a pumped HPC system cannot cool any further than 40 ◦C. Therefore, to further cool, we utilized the refrigeration cycle which as previously mentioned was restricted to create a temperature gradient of 10 ◦C in the flue gas to minimize the work required by the compressor. A four-stage system comprising one pumped heat pipe cycle and two vapor compression cycles

PDF Image | Waste Heat and Water Recovery System Optimization for Flue Gas

PDF Search Title:

Waste Heat and Water Recovery System Optimization for Flue Gas

Original File Name Searched:

sustainability-11-01881.pdf

DIY 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)