article thumbnail

Independent study confirms cost savings & emissions advantages for heavy-duty trucks running ClearFlame’s engine technology

Green Car Congress

ClearFlame Engine Technologies, a startup developing net-zero engine technology ( earlier post ), announced the publication of an independent study that finds ClearFlame’s technology could help fleet owners and other heavy-duty truck operators lower total costs while meeting sustainability goals sooner than currently available alternatives.

Emissions 370
article thumbnail

MAN reports successful first running of ammonia two-stroke engine

Green Car Congress

MAN Energy Solutions announced the successful first running of a test engine on ammonia at its Research Centre Copenhagen (RCC). This marks a major milestone on our road to developing a full-scale two-stroke ammonia marine engine. This marks a major milestone on our road to developing a full-scale two-stroke ammonia marine engine.

Engine 369
article thumbnail

ZeroAvia, MHIRJ 1st phase technical study confirms feasibility of hydrogen-electric CRJ aircraft

Green Car Congress

As part of the initial technical study conducted alongside Type Certificate holder MHIRJ over the last year, an initial entry-point for a CRJ 700 retrofit with ZeroAvia’s ZA 2000RJ powertrain—confirming maximum takeoff weight, center of gravity and structural allowances—has been identified. Earlier post.)

Hydrogen 356
article thumbnail

Study on effects of ammonia-diesel blends in CI engines

Green Car Congress

An international team from the Middle East has investigated the characteristics of diesel engines powered by petroleum diesel fuel blended with different volumetric percentages of aqueous ammonia. In the simulations, the team used a constant engine speed of 1500 RPM, an injection pressure of 160 bar, and 20° BTDC injection timing.

Diesel 199
article thumbnail

UGA study finds black carbon aerosols from GDI engines will worsen public health, climate; need for GPFs

Green Car Congress

The gasoline direct injection (GDI) engine is one of the most prominent technologies car manufacturers adopted to achieve the fuel economy and carbon dioxide emission goals established in 2012 by the US Environmental Protection Agency. will be equipped with GDI engines by 2025. will be equipped with GDI engines by 2025.

Climate 348
article thumbnail

Airbus developing hydrogen fuel cell engine

Green Car Congress

Airbus is developing a hydrogen-powered fuel cell engine. Airbus will start ground and flight testing this fuel cell engine architecture onboard its ZEROe demonstrator aircraft towards the middle of the decade. A hydrogen gas turbine can also be coupled with fuel cells instead of batteries in a hybrid-electric architecture.

Hydrogen 433
article thumbnail

U-M researchers challenge USPS EV environmental study

Green Car Congress

A new University of Michigan study finds that making the switch to all-electric mail-delivery vehicles would lead to far greater reductions in greenhouse gas emissions than previously estimated by the US Postal Service (USPS). The Postal Service has not commented on the U-M study. Earlier post.). The USPS estimate was 10.3