Testing the Rotating Liner Engine: Over 30% Reduction in Diesel Engine Fuel Consumption at Idle Conditions

2021 ◽  
Author(s):  
Dimitrios Dardalis ◽  
Matthew Hall ◽  
Ron Matthews ◽  
Amiyo Basu ◽  
Zheng Yan Ching
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Engine Fuel

Modeling the Effect of Injector Nozzle-Hole Layout on Diesel Engine Fuel Consumption and Emissions

2007 ◽  
Author(s):  
Sung Wook Park ◽  
Rolf D. Reitz
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
High Speed ◽  
Pollutant Emissions ◽  
Injection Timing ◽  
Engine Fuel ◽  
Hole Size ◽  
Large Hole ◽  
Hole Configuration ◽  
Nozzle Hole

Numerical simulations were used to study the effect of reduced nozzle hole size and nozzle tip hole configuration on the combustion characteristics of a high speed direct injection diesel engine. The KIVA code coupled with the Chemkin chemistry solver was used for the calculations. The calculations were performed over wide ranges of equivalence ratio, injection timing and injection pressure. Three nozzle hole layouts were considered; the baseline conventional nozzle, and multi- and group-hole configurations. In the multi-hole case, the number of holes was doubled and the hole size was reduced, while keeping the same hole area as for the baseline nozzle. The group-hole configuration used the same hole number and hole size as the multi-hole case, but pairs of holes were grouped with a close (0.2mm) spacing between the holes. The results of the mixture distributions showed that the group hole configuration provides similar penetration and lower inhomogeneity to those of the baseline large hole nozzle with the same nozzle flow area. Consequently, the fuel consumption and pollutant emissions, such as CO and soot, are improved by using the group-hole nozzle instead of the conventional hole nozzle over wide operating ranges. On the other hand, the multi-hole nozzle has advantages in its fuel consumption and CO emissions over the conventional hole layout at intermediate equivalence ratios (equivalence ratios from 0.46–0.84) and conventional injection timings (SOI: 15° BTDC).

Modeling the Effect of Injector Nozzle-Hole Layout on Diesel Engine Fuel Consumption and Emissions

2008 ◽  
Vol 130 (3) ◽  
Author(s):  
Sung Wook Park ◽  
Rolf D. Reitz
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Pollutant Emissions ◽  
Injection Timing ◽  
Base Line ◽  
Engine Fuel ◽  
Hole Size ◽  
Large Hole ◽  
Hole Configuration ◽  
Nozzle Hole

Numerical simulations were used to study the effect of reduced nozzle-hole size and nozzle tip hole configuration on the combustion characteristics of a high speed direct injection diesel engine. The KIVA code coupled with the CHEMKIN chemistry solver was used for the calculations. The calculations were performed over wide ranges of equivalence ratio and injection timing. Three nozzle-hole layouts were considered: the base line conventional nozzle, and multi- and group-hole configurations. In the multihole case, the number of holes was doubled and the hole size was reduced, while keeping the same hole area as for the base line nozzle. The group-hole configuration used the same hole number and hole size as the multihole case, but pairs of holes were grouped with a close (0.2mm) spacing between the holes. The results of the mixture distributions showed that the group-hole configuration provides similar penetration and lower inhomogeneity to those of the base line large hole nozzle with the same nozzle flow area. Consequently, the fuel consumption and pollutant emissions, such as CO and soot, are improved by using the group-hole nozzle instead of the conventional hole nozzle over wide operating ranges. On the other hand, the multihole nozzle has advantages in its fuel consumption and CO emissions over the conventional hole layout at intermediate equivalence ratios (equivalence ratios from 0.56 to 0.84) and conventional injection timings (start of injection: 15deg before top dead center).

Development and Experimental Validation of a Control-Oriented Diesel Engine Fuel Consumption and Brake Torque Predictive Model for Hybrid Powertrain Control Applications

2010 ◽  
Author(s):  
Fabio Chiara ◽  
Junmin Wang ◽  
Chinmaya B. Patil ◽  
Ming-Feng Hsieh ◽  
Fengjun Yan
Keyword(s):  
Steady State ◽  
Diesel Engine ◽  
Real Time ◽  
Fuel Consumption ◽  
Experimental Validation ◽  
Operating Conditions ◽  
Engine Fuel ◽  
Real Time Control ◽  
Brake Torque ◽  
Highly Nonlinear

This paper describes the development and experimental validation of a control-oriented, real-time-capable, Diesel engine instantaneous fuel consumption and brake torque model under warmed-up conditions. Such a model, with the capability of reliably and computationally-efficiently estimating the aforementioned variables at steady-state and transient engine operating conditions, can be utilized in the context of real-time control and optimization of hybrid powertrains. The only two inputs of the model are the torque request and the engine speed. While Diesel engine dynamics are highly nonlinear and very complex, by considering the Diesel engine and its control system (engine control unit (ECU)) together as an entity, it becomes possible to predict the engine instantaneous fuel consumption and torque based on only the two inputs. A synergy between different modeling methodologies including physically-based grey-box and data-driven black-box approaches were integrated in the Diesel engine model. The fueling and torque predictions have been validated by means of FTP72 test cycle experimental data from a medium-duty Diesel engine at steady-state and transient operations.

Fuel Consumption Modeling for Medium Speed Marine Diesel Engine

2014 ◽  
Vol 1070-1072 ◽  
pp. 1785-1789
Author(s):  
Lei Guo ◽  
Zai Zhong Wang ◽  
Hong Zhao Lin
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Consumption Rate ◽  
Marine Diesel Engine ◽  
Engine Fuel ◽  
Fuel Consumption Rate ◽  
Medium Speed ◽  
Marine Diesel ◽  
Curve Method ◽  
Consumption Model

To predict accurately the fuel consumption rate of a diesel engine, based on polynomial fitting curve method, combined with the test data of XCW6200ZC medium speed marine diesel engine used for inland ships, a diesel engine fuel consumption model about characteristic coefficient and speed under the propulsion characteristic was established. The marine diesel engine fuel consumption were calculated and predicted through this model. The results showed that the model can predict the fuel consumption of diesel engine well.

scholarly journals Diesel engine fuel consumption and emission analysis using steam generated non-surfactant water-in-diesel emulsion fuel

2017 ◽  
Vol 257 ◽  
pp. 012036 ◽  
Author(s):  
Dhani Avianto Sugeng ◽  
Mohamad Fathur Hafeezat Mohd Zahari ◽  
Ahmad Muhsin Ithnin ◽  
Wira Jazair Yahya
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Engine Fuel ◽  
Emission Analysis

scholarly journals Potential Investigation of B3 Waste (Used Oil) of Motorcycle as Alternative Diesel Fuel

2020 ◽  
Vol 64 (2) ◽  
pp. 46-51
Author(s):  
Yohanse Yohanes ◽  
◽  
Artina Rukmana ◽  
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Quality Function Deployment ◽  
Swot Analysis ◽  
Positive Impact ◽  
Engine Oil ◽  
Engine Fuel ◽  
Used Oil ◽  
Alternative Diesel Fuel

The waste or used engine oil is categorized as a Hazardous and Toxic Wastes (bahan berbahaya dan beracun/B3). However, it may have a great potential such as the alternative fuel. This study is proposed to investigate the potential of waste/used oils of motorcycle for diesel fuel. This research used Strengths, Weaknesses, Opportunities and Threats (SWOT) analysis and Quality Function Deployment (QFD) methods to investigate the potential of the used oils of motorcycle. From analysis result based the SWOT and QFD this was revealed the waste or used oil of motorcycle having an opportunity for alternative diesel engine fuel, which it has a positive impact both in economic and environmental terms. Based the test result of fuel consumption between diesel and waste or used oil in terms of costs obtained Rp. 2,532.00/KW for diesel fuel consumption and Rp.787.00/KW for waste or used oil. Therefore, the waste or used oil of motorcycle has potential become diesel fuel. However, it need further research to investigate the efficiency of the diesel engine performances.

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