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Cleveland Schools replacing 49 diesel buses with propane

Green Car Congress

Cleveland Schools, Ohio’s second largest school district, is replacing 49 12-to-13-year-old diesel buses with Blue Bird’s Propane Vision buses. V10 engine operates every Blue Bird Propane-Powered Vision school bus. This engine also powers the Ford F-450, F-550 and F-650 chassis cabs and other stripped chassis platforms.

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NASA, Aerojet Rocketdyne hot fire test rocket engine injector made by 3-D printing

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NASA and Aerojet Rocketdyne recently finished testing a rocket engine injector made through additive manufacturing (also called 3-D printing). NASA’s Glenn Research Center in Cleveland conducted the successful tests for Aerojet Rocketdyne through a non-reimbursable Space Act Agreement. Credit: NASA. Click to enlarge.

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Space station droplet combustion experiments reveal cool-burning flames; potential to lead to better engines

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A better understanding of the cool flames’ chemistry might help improve internal combustion engines in cars, for example by developing homogenous-charge compression ignition, which could potentially lead to engines that burn fuel at cooler temperatures, emitting fewer pollutants such as soot and nitric oxide and NO x , while still being efficient.

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NASA begins ACCESS flight research to study effects of biojet fuels on engine performance, emissions and contrails

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NASA researchers have begun a series of flights using the agency’s DC-8 flying laboratory to study the effects of alternate biofuel on engine performance, emissions and aircraft-generated contrails at altitude. —Ruben Del Rosario, manager of NASA’s Fixed Wing Project.

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GE and NASA To Begin Wind-Tunnel Testing This Summer of Open Rotor Jet Engine Systems

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Basic rendering of an open rotor engine. Following several months refurbishing a special NASA test rig, GE Aviation and NASA this summer will begin a wind-tunnel test program to evaluate counter-rotating fan-blade systems for open rotor jet engine designs. Source: GE. Click to enlarge. Earlier post.). The refurbished NASA test rig.

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DOE to award more than $27M to 12 plastics recycling R&D projects

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The BOTTLE: Bio-Optimized Technologies to Keep Thermoplastics out of Landfills and the Environment funding opportunity is jointly funded by the Office of Energy Efficiency and Renewable Energy’s (EERE) Bioenergy Technologies Office and Advanced Manufacturing Office. Partners include Allonia and the National Renewable Energy Laboratory.

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NASA moves Environmentally Responsible Aviation project into next phase of research with 8 large-scale technology demonstrations

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NASA has selected eight large-scale integrated technology demonstrations to advance aircraft concepts and technologies for reducing the impact of aviation on the environment over the next 30 years. 2 nd Generation UHB Ratio Propulsor Integration : Continued development of a geared turbofan engine to help reduce fuel consumption and noise.

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