article thumbnail

U. Wisconsin team reports gross indicated thermal efficiency of RCCI operation near 60%

Green Car Congress

In a paper presented at the 2013 SAE World Congress, a team from the University of Wisconsin reported a gross indicated thermal efficiency of Reactivity Controlled Compression Ignition (RCCI) operation of near 60%, given optimized combustion management and thermodynamic conditions.

Wisconsin 309
article thumbnail

University of Wisconsin Researchers Investigating Dual-Fuel (Gasoline and Diesel) Partially Premixed Combustion for High-Efficiency, Ultra-Low Emission Combustion; 53% Thermal Efficiency

Green Car Congress

Researchers at the University of Wisconsin, led by Dr. Rolf Reitz, are investigating a blended dual-fuel (gasoline and diesel) concept to extend the operating range of partially premixed charge compression ignition combustion by using the varying fuel reactivity of the charge blend, which is determined in real time. Source: Rolf Reitz.

Wisconsin 225
article thumbnail

Reactivity Controlled Compression Ignition (RCCI) for Simultaneous Reduction of Fuel Consumption, NOx and PM

Green Car Congress

Researchers at the University of Wisconsin led by Dr. Rolf Reitz are developing a dual-fuel compression engine combustion strategy called reactivity controlled compression ignition (RCCI) to simultaneously reduce fuel consumption and regulated emissions of NO x and PM. Earlier post.). Reduced heat transfer losses. Increased fuel efficiency.

Fuel 249
article thumbnail

Promising Delphi 1st-gen Gasoline Direct Injection Compression Ignition engine meeting ultra fuel efficient program targets

Green Car Congress

In 2010, The US Department of Energy (DOE) selected Delphi, along with partners Hyundai America Technical Center, Inc (HATCI); Wisconsin Engine Research Consultants (WERC); and the University of Wisconsin-Madison (UW) for a $7.48-million Earlier post , earlier post.). Background. Earlier post.) kWh and FSN 0.1, respectively.

Gasoline 304
article thumbnail

UW Madison team investigates cycle-to-cycle combustion instability in HCCI and RCCI

Green Car Congress

Researchers at the University of Wisconsin-Madison have used computational fluid dynamics modeling to investigate cycle-to-cycle instability of homogeneous charge compression ignition (HCCI) and reactivity-controlled compression ignition (RCCI) engines—two approaches to low-temperature combustion.

Wisconsin 329
article thumbnail

U Wisconsin team investigates RCCI and GCI in single engine using adaptive dual-fuel injector

Green Car Congress

Researchers at the University of Wisconsin-Madison have investigated blending the benefits of reactivity controlled compression ignition (RCCI) and gasoline compression ignition (GCI) using QuantLogic’s novel adaptive dual-fuel injector which is capable of direct injecting both gasoline and diesel fuel in a single cycle. earlier post.).

Wisconsin 150
article thumbnail

Delphi and partners advancing with high-efficiency, low-emission gasoline compression-ignition combustion

Green Car Congress

In 2010, The US Department of Energy (DOE) selected Delphi, along with partners Hyundai America Technical Center, Inc (HATCI); Wisconsin Engine Research Consultants (WERC); and the University of Wisconsin-Madison (UW) for a $7.48-million Click to enlarge. Earlier post.) For all tests, intake air temperature was 50 C. Sellnau et al.

Gasoline 236