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ARB study compares in-use NOx emissions from diesel, hydraulic hybrid diesel and LNG refuse trucks

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A team from the California Air Resources Board (ARB), in partnership with the City of Sacramento, has characterized the in-use emissions from model year (MY) 2010 or newer diesel, liquefied natural gas (LNG) and hydraulic hybrid diesel engines during real-world refuse truck operation. The engines were certified to the MY 2010 (0.2

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MIT team proposes SCR emission control for hybrid aviation turbines; reducing NOx by 95%

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Due to its size, any SCR system will likely need to be housed in the aircraft body, potentially making it most suitable for future hybrid- or turbo-electric aircraft designs. Furthermore, SCR systems require ultra-low sulfur (ULS) fuel to prevent catalytic fouling. —Prashanth et al. Prakash Prashanth, Raymond L. Speth, Sebastian D.

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New ORNL non-precious metal catalyst shows promise as low-cost component for low-temperature exhaust aftertreatment

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Researchers at Oak Ridge National Laboratory (ORNL) have developed a ternary mixed oxide catalyst composed of copper oxide, cobalt oxide, and ceria (dubbed “CCC”) that outperforms synthesized and commercial platinum group metal (PGM) catalysts for CO oxidation in simulated exhaust streams while showing no signs of inhibition—i.e.,

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CARB to consider low NOx heavy-duty omnibus regulation on 27 August

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The California Air Resources Board will consider the proposed Heavy-Duty Low NO x Omnibus Regulation on 27 August 2020. CARB’s Proposed HD Omnibus Rulemaking would comprehensively overhaul exhaust emission standards and test procedures and other emission-related requirements for 2024 and subsequent model year California-certified HD engines.

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California Air Resources Board Unveils $3.7M in Rebates for Plug-in Hybrid and Zero-Emission Vehicles

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The California Air Resources Board announced $3.7 million in rebates for plug-in hybrid and zero emissions vehicles as part of an overall $42.3 Rebates are available to individuals, business owners and government entities in California that purchase or lease new eligible zero-emission or plug-in hybrid electric light-duty vehicles now.

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LiquidPiston receives $3M Rapid Innovation Fund award from US Army for 2kW hybrid-electric genset

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CAPS is a compact, lightweight, quiet, low-vibration and efficient hybrid-electric diesel generator set capable of supplying up to 2kW of electric power while running on Jet Propellant 8 (JP8) or diesel fuel. This marks the first hybrid application of LPI’s engine technology. kg) (dry weight), 1.5 Earlier post.) Costa et al.

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New hybrid plasma-catalyst aftertreatment system feasible for low-temperature combustion engines

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Researchers at the Korea Institute of Machinery and Materials (KIMM) have developed a new hybrid reactor for automotive exhaust aftertreatment that combines plasma and a honeycomb-structured monolith catalyst resulting in an enhanced synergistic effect of low-temperature catalytic activity. Schematic diagram of the plasma?catalyst

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