1.9-Liter Four-Cylinder HCCI Engine Operation with Exhaust Gas Recirculation

2001 ◽  
Author(s):  
Michael Y. Au ◽  
James W. Girard ◽  
Robert Dibble ◽  
Daniel Flowers ◽  
Salvador M. Aceves ◽  
...  
Keyword(s):  
Exhaust Gas Recirculation ◽  
Exhaust Gas ◽  
Engine Operation ◽  
Hcci Engine ◽  
Gas Recirculation

scholarly journals Exploratory Study of the Hcci Engine Employing Exhaust Gas Recirculation

2020 ◽  
Vol 10 (2) ◽  
pp. 122-127
Author(s):  
Sundar Lal ◽  
Devendra Singh ◽  
Ajay Kumar Sharma
Keyword(s):  
Exhaust Gas Recirculation ◽  
Emission Characteristics ◽  
Exhaust Gas ◽  
Efficient Operation ◽  
Flow Rates ◽  
Load Variations ◽  
Hcci Engine ◽  
Emission Behavior ◽  
Gas Recirculation ◽  
The Impact

The primary aim of the present experiment is to study the productivity, emission behavior of the HCCI engine using exhaust gas recirculation at different flow rates under different load conditions on the controlled combustion of the HCCI diesel-fueled engine, to know the best performance and least emissions attainable and to further investigate the impact of the engine. Experiments have been performed for various percentages of exhaust gas recirculation with diesel fuel under load variations. These analyses of the EGR at varying load with the findings acquired are plotted and contrasted for the output and emission characteristics that have been carried out in order to identify the efficient operation of the diesel engine with the least environmental pollution.

E115 A Study of the Combustion Characteristics of a HCCI Engine Using Exhaust Gas Recirculation

2007 ◽  
Vol 2007 (0) ◽  
pp. 163-164
Author(s):  
Yoshifumi YAMAZAKI ◽  
Seiji OKAMURA ◽  
Hiroki KASUYA ◽  
Akira IIJIMA ◽  
Hideo SHOJI
Keyword(s):  
Exhaust Gas Recirculation ◽  
Combustion Characteristics ◽  
Exhaust Gas ◽  
Hcci Engine ◽  
Gas Recirculation

Effect of exhaust gas recirculation and charge inlet temperature on performance, combustion, and emission characteristics of diesel engine with bael oil blends

2018 ◽  
Vol 29 (3) ◽  
pp. 372-391 ◽  
Author(s):  
M Krishnamoorthi ◽  
R Malayalamurthi
Keyword(s):  
Diesel Engine ◽  
Compression Ratio ◽  
Exhaust Gas Recirculation ◽  
Inlet Temperature ◽  
Injection Timing ◽  
Emission Characteristics ◽  
Exhaust Gas ◽  
Engine Operation ◽  
Engine Load ◽  
Gas Recirculation

The threat of fossil fuel depletion and augmented environmental pollution caused by diesel fleets can be curbed by adopting suitable fuel and engine modifications. In the present work, effects of engine speed (r/min), injection timing, injection pressure and compression ratio on performance and emission characteristics of a compression ignition engine were investigated. The ternary test fuel of 65% diesel + 25% bael oil + 10% diethyl ether has been used, where the tests have been conducted at different charge inlet temperature and exhaust gas recirculation. All the experiments were conducted at the trade-off engine load that is 75% engine load. When the diesel engine operating with 320 K charge inlet temperature, brake thermal efficiency has been improved to 28.6%. Meanwhile reduced emission levels of carbon monoxide (0.025%) and hydrocarbon (12.3 ppm) were observed during the engine operation with 320 K charge inlet temperature and compression ratio of 18:1. The oxides of nitrogen have been reduced to 226 ppm at 16:1 compression ratio with 30% exhaust gas recirculation mode.

508 A Study of the Combustion Characteristics of a HCCI Engine Using Exhaust Gas Recirculation

2007 ◽  
Vol 2007 (0) ◽  
pp. 113-114
Author(s):  
Yoshifumi YAMAZAKI ◽  
Seiji OKAMURA ◽  
Hiroki KASUYA ◽  
Akira IIJIMA ◽  
Hideo SHOJI
Keyword(s):  
Exhaust Gas Recirculation ◽  
Combustion Characteristics ◽  
Exhaust Gas ◽  
Hcci Engine ◽  
Gas Recirculation

In-Cylinder CO2 Sampling Using Skip-Firing Method

2019 ◽  
Vol 141 (8) ◽  
Author(s):  
Matthew Duckhouse ◽  
Mark Peckham ◽  
Byron Mason ◽  
Edward Winward ◽  
Matthew Hammond
Keyword(s):  
Response Time ◽  
Gasoline Engine ◽  
Wide Band ◽  
Exhaust Gas Recirculation ◽  
Fast Response ◽  
Firing Cycle ◽  
Exhaust Gas ◽  
Engine Operation ◽  
Gas Recirculation ◽  
Firing Method

Skip-firing (or cylinder de-activation) was assessed as a method of sampling CO2 directly in the cylinder at higher speeds than previously possible. CO2 was directly sampled from one cylinder of a 1 L three-cylinder gasoline engine to determine the residual gas fraction (RGF) using a fast response CO/CO2 analyzer. Acquisition of data for similar measurements is typically limited to engine speeds of below 1300  revolutions per minute (rpm) to allow full resolution of the sample through the analyzer that has an 8 ms finite response time. In order to sample in-cylinder CO2 at higher engine speeds, a skip-firing method is developed. By shutting off ignition intermittently during engine operation, the residual CO2 from the last firing cycle can be measured at significantly higher engine speeds. Comparison of RGF CO2 at low speeds for normal and skip-fire operation shows good correlation. This suggests that skip-firing is a suitable method for directly measuring internal exhaust gas recirculation up to at least 3000 rpm. The measurements obtained may provide a useful tool for validating internal exhaust gas recirculation models and could be used to calculate combustion air–fuel ratio from the CO and CO2 content of the burned gas. These are typically complicated parameters to predict due to the slow response time and sensitivity to hydrocarbons of wide-band oxygen sensors. A differing pattern of RGF change with increasing speed was seen between normal and skip-fire operation.

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