Charge Motion Benefits of Valve Deactivation to Reduce Fuel Consumption and Emissions in a GDi, VVA Engine

2011 ◽  
Author(s):  
Wayne Moore ◽  
Matthew Foster ◽  
Ming-Chia Lai ◽  
Xing-Bin Xie ◽  
Yi Zheng ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Reduce Fuel Consumption ◽  
Charge Motion ◽  
Fuel Consumption And Emissions

scholarly journals The impact of single engine taxiing on aircraft fuel consumption and pollutant emissions

2018 ◽  
Vol 122 (1258) ◽  
pp. 1967-1984 ◽  
Author(s):  
M. E. J. Stettler ◽  
G. S. Koudis ◽  
S. J. Hu ◽  
A. Majumdar ◽  
W. Y. Ochieng
Keyword(s):  
Fuel Consumption ◽  
Pollutant Emissions ◽  
Future Research ◽  
Reduce Fuel Consumption ◽  
Flight Data ◽  
Set Operations ◽  
Aircraft Fuel ◽  
Fuel Consumption And Emissions ◽  
The Impact

ABSTRACTOptimisation of aircraft ground operations to reduce airport emissions can reduce resultant local air quality impacts. Single engine taxiing (SET), where only half of the installed number of engines are used for the majority of the taxi duration, offers the opportunity to reduce fuel consumption, and emissions of NOX, CO and HC. Using 3510 flight data records, this paper develops a model for SET operations and presents a case study of London Heathrow, where we show that SET is regularly implemented during taxi-in. The model predicts fuel consumption and pollutant emissions with greater accuracy than previous studies that used simplistic assumptions. Without SET during taxi-in, fuel consumption and pollutant emissions would increase by up to 50%. Reducing the time before SET is initiated to the 25th percentile of recorded values would reduce fuel consumption and pollutant emissions by 7–14%, respectively, relative to current operations. Future research should investigate the practicalities of reducing the time before SET initialisation so that additional benefits of reduced fuel loadings, which would decrease fuel consumption across the whole flight, can be achieved.

Practical Applications of Opposed-Piston Engine Technology to Reduce Fuel Consumption and Emissions

2013 ◽  
Author(s):  
Suramya Naik ◽  
David Johnson ◽  
John Koszewnik ◽  
Laurence Fromm ◽  
Fabien Redon ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Reduce Fuel Consumption ◽  
Piston Engine ◽  
Practical Applications ◽  
Fuel Consumption And Emissions

Application of Energy-Saving Magnesium Alloy in Automotive Industry

2013 ◽  
Vol 734-737 ◽  
pp. 2244-2247 ◽  
Author(s):  
Chun Ping Du ◽  
Dao Fen Xu
Keyword(s):  
Magnesium Alloy ◽  
Energy Saving ◽  
Fuel Consumption ◽  
Magnesium Alloys ◽  
Automotive Industry ◽  
Reduce Fuel Consumption ◽  
Research Focus ◽  
Lightweight Materials ◽  
Fuel Consumption And Emissions

Reducing the weight of a vehicle, which helps to reduce fuel consumption and emissions by a large extent, has become a research focus in the automotive industry. Application of magnesium alloy lightweight materials is one of the most lightweight methods. This paper introduces the characteristics of magnesium alloys and reviews the application of magnesium alloys in automotive industry at present.

Workload Perception of Air Traffic Control Officers and Pilots During Continuous Descent Operations Approach Procedures

2019 ◽  
Vol 9 (1) ◽  
pp. 2-11
Author(s):  
Marina Efthymiou ◽  
Frank Fichert ◽  
Olaf Lantzsch
Keyword(s):  
Fuel Consumption ◽  
Traffic Control ◽  
Air Traffic Control ◽  
Negative Impact ◽  
Air Traffic ◽  
Reduce Fuel Consumption ◽  
Total Load ◽  
Open Path

Abstract. The paper examines the workload perceived by air traffic control officers (ATCOs) and pilots during continuous descent operations (CDOs), applying closed- and open-path procedures. CDOs reduce fuel consumption and noise emissions. Therefore, they are supported by airports as well as airlines. However, their use often depends on pilots asking for CDOs and controllers giving approval and directions. An adapted NASA Total Load Index (TLX) was used to measure the workload perception of ATCOs and pilots when applying CDOs at selected European airports. The main finding is that ATCOs’ workload increased when giving both closed- and open-path CDOs, which may have a negative impact on their willingness to apply CDOs. The main problem reported by pilots was insufficient distance-to-go information provided by ATCOs. The workload change is important when considering the use of CDOs.

Gasoline Engine and Fuels Offering Reduced fuel Consumption and Emissions (GEFORCE)

2018 ◽  
Author(s):  
C. Scott Sluder ◽  
Martin L. Wissink ◽  
David E. Smith
Keyword(s):  
Fuel Consumption ◽  
Gasoline Engine ◽  
Fuel Consumption And Emissions
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