PDF Publication Title:
Text from PDF Page: 124
4.2.3 Ideal Four-Step Cycle The second cycle analyzed here is the Ideal Four-Step cycle, in which the throttling losses are eliminated. This allows us to calculate the actual bed losses, which are inherent to the separation process. The number of moles of gas that move through each part of the cycle, and the position of the turbines that would recover the expansion energy are shown in Figure 4.6. The results of the gas flow and work calculations can be seen in the second column of Table 4.4. Feed, NF NPU +NPR NPI WR Product, NP 2 Isothermal Compressor WF w w Figure 4.6 Ideal Four-Step Cycle: Energy and Molar Flows. The associated Grassman diagram is shown in Figure 4.7. The work recovered during the blowdown, purge, pressurization and expansion of product steps are shown. As the low pressure is atmospheric, no energy is required to blowdown the bed or withdraw the purged gas from the bed. Over half of the work input (58.89%) is recovered during the blowdown step. This is high, because the pressure ratio is quite high. The work recovered during pressurization (16.09% of the feed work) is the second largest amount of energy recovered. This is also high because of the large pressure ratio. Expanding the purge gas (6.41%) and expanding the pressurization gas (6.52%) wpu + WPR N P2 WB + —• Exhaust, NE 108PDF Image | Energy Efficiency of Gas Separation Pressure Swing Adsorption
PDF Search Title:
Energy Efficiency of Gas Separation Pressure Swing AdsorptionOriginal File Name Searched:
ubc_1997-0009.pdfDIY PDF Search: Google It | Yahoo | Bing
CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
Heat Pumps CO2 ORC Heat Pump System Platform More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)