PDF Publication Title:
Text from PDF Page: 020
Energies 2020, 13, 6576 20 of 24 The equation for the exergy balance can be written as shown in Equation (A2): Exinput − Exrecovered − Exloss − Exconsumption = Exaccumulated (A2) Being, Exinput the total exergy input to the tank calculated as ExA − ExB + ExD in the stratified case and as ExA in the variable-water-volume case, Exrecovered the exergy recovered as the total exergy sent to the user (ExC); Exloss the environmental exergy losses calculated according to Equation (A3); Exconsumption the exergy consumed in the system calculated for having balance zero in Equation (A2) and Exaccumulated the energy stored in the tank. All the exergy flows were calculated considering a reference temperature of the system of 10 ◦C: To Xl = node ·Qnode The energy and exergy efficiencies are calculated as stated in [32] and shown respectively in Energies 2020, 13, x FOR PEER REVIEW Equations (A4) and (A5): i 1 − T node (A3) 21 of 25 𝐸𝑛𝑒𝑟𝑔E𝑦ne𝑟r𝑒g𝑐y𝑜𝑣re𝑒c𝑟o𝑒v𝑑ered 𝐸𝑛𝑒𝑟𝑔𝑦En𝑒e𝑓r𝑓g𝑖y𝑐𝑖e𝑒f𝑛f𝑐i𝑦cie=ncy = , , (A4) A4 Exergy e f f iciency = . A5(A5) 𝐸𝑥𝑒𝑟𝑔𝑦 𝑟𝑒𝑐𝑜𝑣𝑒𝑟𝑒𝑑 𝐸𝑥𝑒𝑟𝑔𝑦 𝑒𝑓𝑓𝑖𝑐𝑖𝑒𝑛𝑐𝑦 = . 𝐸𝑛𝑒𝑟E𝑔n𝑦e𝑖r𝑛g𝑝y𝑢i𝑡nput Exergy recovered Exergy input 𝐸𝑥𝑒𝑟𝑔𝑦 𝑖𝑛𝑝𝑢𝑡 Appendix A.2. Energy and Exergy Analysis Results Appendix A.2. Energy and Exergy Analysis Results The energy and exergy analysis have been performed considering each SHP size optimal result. The energy and exergy analysis have been performed considering each SHP size optimal result. Thus, in Figure A2, the results for the optimal tank volume concerning the lowest system energy Thus, in Figure , the results for the optimal tank volume concerning the lowest system energy consumption are presented and are the cases selected for the analysis. The results in Figure A2 show consumption are presented and are the cases selected for the analysis. The results in Figure show that the variable-volume case is able to reach the user energy need with lower tank volume. that the variable-volume case is able to reach the user energy need with lower tank volume. Figure A2. Optimal tank volume for the stratified and variable-water-volume case. Figure A2. Optimal tank volume for the stratified and variable-water-volume case. The results of the energy analysis are presented in Figure A3. The results show differences in the The results of the energy analysis are presented in Figure A3. The results show differences in the environmental losses always lower for the variable-water-volume case. This is explained since the environmental losses always lower for the variable-water-volume case. This is explained since the variable-water-volume case is always able to work with a lower tank volume than the stratified case. variable-water-volume case is always able to work with a lower tank volume than the stratified case. This fact leads to a lower need of energy input and slightly higher energy efficiency than the stratified This fact leads to a lower need of energy input and slightly higher energy efficiency than the stratified case, always considering the same user energy demand as Figure A3b shows. However, this difference case, always considering the same user energy demand as Figure A3b shows. However, this on energy efficiency is only around 1%. This difference, more than a better energy performance shows difference on energy efficiency is only around 1%. This difference, more than a better energy that the cases are able to work in a very similar condition concerning their optimal operation points. performance shows that the cases are able to work in a very similar condition concerning their optimal operation points.PDF Image | Thermal Energy Storage Strategy Booster Heat Pump Low Temp
PDF Search Title:
Thermal Energy Storage Strategy Booster Heat Pump Low TempOriginal File Name Searched:
energies-13-06576.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)