lunes, 15 de noviembre de 2021
domingo, 14 de noviembre de 2021
viernes, 12 de noviembre de 2021
jueves, 11 de noviembre de 2021
martes, 9 de noviembre de 2021
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Embraer presents the Energia Family - Four New Aircraft Concepts Using Renewable Energy Propulsion Technologies
press release
ÃO JOSÉ DOS CAMPOS, Brazil, Nov. 8, 2021 /PRNewswire/ -- Embraer (B3: EMBR3,NYSE: ERJ) today announced a family of concept aircraft that it is exploring to help the industry achieve its goal of net zero carbon emissions by 2050. The details of the Energia family, the latest in the company's Sustainability in Action initiative, were broadcast live via YouTube from Embraer's manufacturing facility in São José dos Campos.
The company has partnered with an international consortium of engineering universities, aeronautical research institutes, and small and medium-sized enterprises to better understand energy harvesting, storage, thermal management and their applications for sustainable aircraft propulsion.
The Energia Family is comprised of four concept aircraft of varying sizes that incorporate different propulsion technologies – electric, hydrogen fuel cell, dual fuel gas turbine, and hybrid-electric.
Energia Hybrid (E9-HE) Energia Electric (E9-FE)
. hybrid-electric propulsion . full electric propulsion
. up to 90% CO2 emissions reduction . zero CO2 emissions
. 9 seats . 9 seats
. rear-mounted engines . aft contra-rotating propellers
. technology readiness –2030 . technology readiness – 2035
Energia H2 Fuel Cell (E19-H2FC) Energia H2 Gas Turbine (E50-H2GT)
. hydrogen electric propulsion . hydrogen or SAF/JetA turbine propulsion
. zero CO2 emissions . up to 100% CO2 emissions reduction
. 19 seats . 35 to 50 seats
. rear-mounted electric engines . rear-mounted engines
. technology readiness – 2035 . technology readiness – 2040
Each aircraft is being evaluated for its technical and subsequent commercial viability.
Luis Carlos Affonso, Embraer's Sr. VP of Engineering, Technology and Corporate Strategy, explained the rationale for the Energia family. "We see our role as a developer of novel technologies to help the industry achieve its sustainability targets. There's no easy or single solution in getting to net zero. New technologies and their supporting infrastructure will come online over time. We're working right now to refine the first airplane concepts, the ones that can start reducing emissions sooner rather than later. Small aircraft are ideal on which to test and prove new propulsion technologies so that they can be scaled up to larger aircraft. That's why our Energia family is such an important platform."
Arjan Meijer, President and CEO of Embraer Commercial Aviation, commented on the company´s strategy regarding sustainability "We will see a big transformation in our industry towards a more sustainable aviation. With 50 years experience in developing, certifying and supporting regional aircraft, Embraer is in a unique position to make viable the introduction of new disruptive green technologies."
Although the Energia airplanes are still on the drawing board, Embraer has already made advances in reducing emissions from its aircraft. It has tested drop-in sustainable aviation fuel (SAF), mixes of sugarcane and camelina plant-derived fuel and fossil fuel, on its family of E-Jets. The company is targeting to have all Embraer aircraft SAF-compatible by 2030. Last August, Embraer flew its Electric Demonstrator, a single-engine EMB-203 Ipanema, 100% powered by electricity. A full electric demonstrator flew this year, a hydrogen fuel cell demonstrator is planned for 2025 and the company's eVTOL, a fully-electric, zero-emissions vertical take off and landing vehicle, is being developed to enter service in 2026.
For complete information about Embraer's Sustainability in Action initiative and specifications for each Energia concept aircraft, go to https://www.embraercommercialaviation.com/sustainabilityinaction.
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Drop-in Fuels from Sunlight and Air | Nature
Abstract
Aviation and shipping currently contribute approximately 8% of total anthropogenic CO2 emissions, with growth in tourism and global trade projected to increase this contribution further1–3. Carbon-neutral transportation is feasible with electric motors powered by rechargeable batteries, though challenging if not impossible for long-haul commercial travel, particularly air travel4. A promising solution are drop-in fuels (synthetic alternatives for petroleum-derived liquid hydrocarbon fuels such as kerosene, gasoline or diesel) made from H2O and CO2 by solar-driven processes5–7. Among the many possible approaches, the thermochemical path using concentrated solar radiation as the source of high-temperature process heat offers potentially high production rates and efficiencies8 and can deliver truly carbon-neutral fuels if the required CO2 is obtained directly from atmospheric air9. If H2O is also co-extracted from air10, feedstock sourcing and fuel production can be co-located in desert regions with high solar irradiation and limited access to water resources. While individual steps of such a scheme have been implemented, we now demonstrate operation of the entire thermochemical solar fuel production chain, from H2O and CO2 captured directly from ambient air to the synthesis of drop-in transportation fuels (e.g. methanol, kerosene), with a modular 5-kWthermal pilot-scale solar system operated under real field conditions. We further identify the R&D efforts and discuss the economic viability and policies required to bring these solar fuels to market.
jueves, 4 de noviembre de 2021
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