The work investigates the energy consumption, CO2 emissions, and embodied energy of the technology using a transparent framework, first principal energy balances, and public domain information. It is being commercialized on multiple routes across the world with different operating speeds: Mumbai-Pune (India-360 km/h), Dubai-Abu Dhabi (UAE-750 km/h), Chicago–Pittsburgh (USA-1484 km/h). The Hyperloop is a proposed novel mode of high-speed transportation that uses magnetically levitated pods, propelled by a linear synchronous motor in a partially evacuated environment to transport passengers. Based on the results, this study concludes that the individual designs of the head and tail of ETT systems may be rather demanding to achieve the desired optimization when considering distinct cruising speeds. In addition, the combined effect of the head and tail lengths on drag reduction was close to the superposition of their individual optimization effect. An increase in head length appeared to be more sensitive to drag reduction at a speed of 600 m/s, while a long tail was found to induce a pronounced drag reduction at 200 m/s. Furthermore, the influence of head and tail lengths on drag reduction was investigated in these three speed ranges. The results revealed three distinct aerodynamic behaviors, corresponding to the three speed regions separated by the two critical Mach numbers. Two tube train systems with different blockage ratios ( β), that is, β = 0.09 and β = 0.25, were employed for the comparative study of aerodynamic drag and flow structure. ****I will not replace any order that gets lost due to it being sent to the wrong address.In this work, the impact of the isentropic and Kantrowitz limits on the aerodynamic behavior of evacuated tube transportation (ETT) was numerically explored. If the address you provided is incorrect and the order gets returned or lost, it is the responsibility of the customer to pay any additional fees for reshipping the item. Please make sure this address is accurate. ****I ship all orders to your Etsy address. Any order placed on Friday, Saturday, or Sunday will begin on the following business day and won't be mailed out before Monday. Saturday and Sunday are not considered working days. *Our production time may take 10-14 days after you place an order+ shipping time!!! Please contact us with any shipping-related questions. If you would like your order to be shipped via Priority Mail or Express Mail please let us know ahead of time so that we can adjust the shipping cost.Īll customers will be notified by email when their package is shipped. KEEP IN MIND: WE HAVE NO CONTROL OVER ANY POST OFFICEĪll of our orders are shipped via USPS First Class Mail but the only U.S. I cannot be held responsible for USPS mistakes/delays*******I am not responsible for issues with shipping after it has left my hands.
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