PDF Publication Title:
Text from PDF Page: 019
Energies 2022, 15, 6331 power of 5.9 kW. The operation of the system from the standpoint of view of production and water is shown in Figure 9. The daily operation starts with the refill of desalinate tank TK2 because during the previous day the stored volume reached the minimu 19 of 33 deadband level of 50% of the storage volume for the activation of the reverse osmo RO. Due to a null DHW demand in the first hours of the day, tank TK2 is refille RO unit just before the morning demand of the user at about 6:30 a.m. The oper tank TK2 because during the previous day the stored volume reached the minimum lower tdheeadRbaOndulneviteliosfp50e%rfofrmthedstowraigtehvtohluemneofomritnhealacsteivaawtioanteorftfhloewrevoerfse16os0m0oksigs/uhniftr,om w RO. Due to a null DHW demand in the first hours of the day, tank TK2 is refilled by the RO kg/h of desalinated water is produced. The water stored in tank TK2 allows one unit just before the morning demand of the user at about 6:30 a.m. The operation of the the variable demand in the central hours of the day; nonetheless, the activation o RO unit is performed with the nominal seawater flow of 1600 kg/h from which 240 kg/h unit is needed before 6:00 p.m. since the stored water volume drops to the half of desalinated water is produced. The water stored in tank TK2 allows one to meet the cvarpiabclietydeomfatnhdeitnanthke.cIetnitsranlohtoiucresaobflethtehdaatyt;hneonveothluemleses,stthoeraecdtivinatitohneotfatnhke RkOeeps de unit is needed before 6:00 p.m. since the stored water volume drops to the half storage after the activation of the RO unit due to a relatively high water demand in the la capacity of the tank. It is noticeable that the volume stored in the tank keeps decreasing ing hours, and that only after this demand does the stored volume increase from t after the activation of the RO unit due to a relatively high water demand in the late evening imum value of 0.74 m3. The trend shows that the system is robust in providing hours, and that only after this demand does the stored volume increase from the minimum manded water with a relatively small, desalinated water flowrate given by the value of 0.74 m3. The trend shows that the system is robust in providing the demanded awnadterawpitrhoaprelratsivtoelryasgmeatlla,ndkesavlionlautemdew.aTtehreflroewforarte,gsivimeniblayrtlhyetRoOrueniet awnadbalepreopnerrgy so storage tank volume. Therefore, similarly to renewable energy sources, in islanded systems islanded systems requiring freshwater, it is possible to match the user demand requiring freshwater, it is possible to match the user demand with an adequate storage adequate storage capability despite a limited generation capability. capability despite a limited generation capability. 2500 2000 1500 1000 500 0 336 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 340 RO,feed warer 344 348 Time [hours] 352 356 360 RO, desilanted water DHW, demand TK3,stored water Figure 9. Water flowrates and stored freshwater volume. Figure 9. Water flowrates and stored freshwater volume. 4.2. Daily Results for a Summer Day The representative operation of the polygeneration system in terms of temperatures for 4.2. Daily Results for a Summer Day the summer day of 29 July is shown in Figure 10. Condenser, COND, outlet temperature is The representative opera◦tion of the polygeneration syste◦m in terms of temp higherinthefirstpartoftheday(68 C)comparedtotheremainingpart(65 C).Thisoccurs fboercatuhse tshuemmorenrindgahyouorfs o2f9oJpuelryatiosnsahroewchnariancteFriigzeudreby1r0e.laCtiovneldyehnigsherte,mCpOerNatDur,esoutlet t in the loop that manages the cogenerated heat, due to a scarce demand for heat from the ture is higher in the first part of the day (68 °C) compared to the remaining part user (DHW and space cooling). In fact, at the beginning of the day, tank TK1 is already This occurs because the morning hours of◦operation are characterized by relativ above the maximum set point temperature of 65 C, along with the temperature at the outlet of pump P2 (returning to COND). Such temperatures are almost the same since the TK1 tank top and bottom temperatures are similar due to a small heat utilization. This situation changes in the morning hours when a drop in the temperatures in the system can be observed starting from the maximum of 67 ◦C. TK1 tank temperature drops below 65 ◦C before 11:00 am, and one hour earlier, the same occurs for the outlet of pump P2, which determines the end of the necessity of cooling down the water returning to the condenser, COND, by the auxiliary heat exchanger, AHX. As occurred in the winter day, here, also, TK3 tank temperature follows that of TK1 due to continuous heat exchange between the tanks. u m d h f c t R u e e e Water flowrate [kg/h] Desalinated water stored volume [m3]PDF Image | Hybrid Polygeneration System Based on Biomass Wind and Solar Energy
PDF Search Title:
Hybrid Polygeneration System Based on Biomass Wind and Solar EnergyOriginal File Name Searched:
energies-15-06331-v2.pdfDIY PDF Search: Google It | Yahoo | Bing
Turbine and System Plans CAD CAM: 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. More Info
Waste Heat Power Technology: Organic Rankine Cycle uses waste heat to make electricity, shaft horsepower and cooling. More Info
All Turbine and System Products: Infinity Turbine ORD systems, turbine generator sets, build plans and more to use your waste heat from 30C to 100C. More Info
CO2 Phase Change Demonstrator: CO2 goes supercritical at 30 C. This is a experimental platform which you can use to demonstrate phase change with low heat. Includes integration area for small CO2 turbine, static generator, and more. This can also be used for a GTL Gas to Liquids experimental platform. More Info
Introducing the Infinity Turbine Products Infinity Turbine develops and builds systems for making power from waste heat. It also is working on innovative strategies for storing, making, and deploying energy. More Info
Need Strategy? Use our Consulting and analyst services Infinity Turbine LLC is pleased to announce its consulting and analyst services. We have worked in the renewable energy industry as a researcher, developing sales and markets, along with may inventions and innovations. More Info
Made in USA with Global Energy Millennial Web Engine These pages were made with the Global Energy Web PDF Engine using Filemaker (Claris) software.
Sand Battery Sand and Paraffin for TES Thermo Energy Storage More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |