Features and Performance Data of Cooper-Bessemer Coal-Fueled Six-Cylinder LSB Engine

1992 ◽  
Vol 114 (3) ◽  
pp. 509-514 ◽  
Author(s):  
A. K. Rao ◽  
E. N. Balles ◽  
R. P. Wilson
Keyword(s):  
Preliminary Test ◽  
Injection System ◽  
Exhaust Emission ◽  
Successful Operation ◽  
Single Cylinder ◽  
System A ◽  
Full Power ◽  
Emission Control System ◽  
And Performance ◽  
Engine Components

The six-cylinder Cooper-Bessemer LSB engine has been converted to operate with one cylinder on coal-water slurry (CWS) fuel and with five cylinders operating on diesel fuel. This development followed the successful operation of the single-cylinder JS engine on CWS for over 600 hours to date. The CWS injection system was scaled up about a factor of two in fuel volume from the JS system. A new cam box drive was fabricated for the LSB single-cylinder operation. The engine was operated and full power output was achieved from the CWS cylinder. Preliminary test results indicate good operate efficiency. An exhaust emission control system is in place for the proposed operation of all the six cylinders on CWS and major engine components are on hand. These results mark a significant milestone in the progress toward commercial readiness of the coal-fueled diesel engine system.

Ceramic Vanes for a Model 501-K Industrial Turbine Demonstration

2000 ◽  
Author(s):  
Richard A. Wenglarz ◽  
Ken Kouns
Keyword(s):  
Second Phase ◽  
Processing Plant ◽  
Successful Operation ◽  
Barrier Coatings ◽  
Environmental Barrier Coatings ◽  
Gas Processing ◽  
Oxidation Rates ◽  
Commercial Operation ◽  
Full Power ◽  
And Performance

First-stage ceramic vanes and their metallic mounts have been designed and fabricated for retrofit into Rolls-Royce Allison Model 501-K turbines. Thermal shock tests of the AS 800 ceramic vanes were conducted using a combustor rig. The ceramic vanes and mounts were then successfully operated in a Model 501-KB5 turbine during engine proof tests for a total of 22 hr. After inspection of the ceramic vane assembly, the turbine was reassembled and shipped to an Exxon natural gas processing plant near Mobile, AL, for the first phase of a field demonstration. The Model 501-KB5 turbine experienced the rigors of commercial operation, including an emergency shutdown (unrelated to the ceramic vane assembly) and a full power water wash. No forced shutdowns associated with the ceramic vanes were experienced. Successful operation for 815 hr (793 hr at Exxon and 22 hr engine proof test) was achieved for the Model 501-KB5 turbine with first-stage ceramic vanes during which the engine sustained power and performance. Analyses of the vanes revealed ceramic oxidation rates that are excessive for industrial turbine applications. A second phase of the ceramic vane demonstration is planned to evaluate environmental barrier coatings (EBCs) to inhibit ceramic oxidation rates.

DIGITALLY CONTROLLED FLOW METERING UNIT WITH DOUBLE ACTUATION FOR FAST TRANSIENT RESPONSE IN AUTOMOTIVE APPLICATIONS

1994 ◽  
Vol 04 (04) ◽  
pp. 459-469
Author(s):  
T. KREPEC ◽  
A.I. GEORGANTAS
Keyword(s):  
Transient Response ◽  
Gasoline Engine ◽  
Injection System ◽  
Fast Transient Response ◽  
System A ◽  
Flow Metering ◽  
Digitally Controlled ◽  
And Performance ◽  
Controlled Flow ◽  
The Mathematical Model

This paper proposes a novel compact, inexpensive, yet versatile flow metering unit which consists of two hydraulic valves incorporated in a single barrel and operated directly by two digital actuators. For the evaluation of the concept, the mathematical model of the unit is developed and validated. The model is subsequently used to investigate the operability and performance of the system. A specific control strategy taking advantage of the system hardware is implemented. The enhancement of the transient response, as compared to single actuation conventional units, is demonstrated. Furthermore, the back-up functionality in case of failure of one of the valves is ascertained. This kind of double actuator unit is proposed for, but not limited to, fuel metering in a gasoline engine throttle body injection system.

scholarly journals Effect of Combustion Parameters on Performance, Combustion and Emission Characteristics of a Modified Small Single-Cylinder Diesel Engine

2020 ◽  
Vol 8 (5) ◽  
pp. 622-630 ◽  
Keyword(s):  
Diesel Engine ◽  
Compression Ratio ◽  
Injection Pressure ◽  
Injection System ◽  
Combustion Characteristic ◽  
Experimental Investigations ◽  
Exhaust Emission ◽  
Injection Timing ◽  
Emission Characteristics ◽  
Single Cylinder

This paper represents the relative performance of a small single-cylinder diesel engine having capacity 3.5 kW. This paper covers experimental investigations of most influencing combustion parameters such as compression ratio, injection pressure and start of injection timing and their values on performance, emission and combustion characteristic of the small single-cylinder CRDI diesel engine for which the mechanical fuel injection system retrofitted with a simple version of the CRDI system. CRDI has yielded good results for large diesel and petrol engines but still not incorporate for cheaper small single-cylinder engines, typically used in the agricultural sector and decentralized power sector for a country like India. It is observed that starts of injection timing and injection pressure are the key parameters for improving the combustion characteristics and therefore engine performance while compression ratio mainly affects the emission characteristics of the engine. Retrofitted CRDI system yielded improved exhaust emission and performance of the engine.

Development of a Pumpless Diesel Engine

1969 ◽  
Vol 184 (10) ◽  
pp. 44-56
Author(s):  
J. E. Witzky
Keyword(s):  
Diesel Engine ◽  
Visual Observation ◽  
Test Equipment ◽  
Injection System ◽  
Test Results ◽  
Single Cylinder ◽  
Injection Process ◽  
And Performance ◽  
Stroke Cycle

The development of Southwest Research Institute's pumpless diesel engine is described. The injection process of this system, test equipment, visual observation of injection, and the effect of the nozzle construction on exhaust smoke and performance are explored in detail. Test results of the pumpless injection system on a single-cylinder two-stroke cycle engine are presented. Other attempts to develop pumpless injection systems are briefly described.

The Development and Performance of the Compact SCR-Trap System: A 4-Way Diesel Emission Control System

2003 ◽  
Author(s):  
Andrew P. Walker ◽  
Ronny Allansson ◽  
Philip G. Blakeman ◽  
Mats Lavenius ◽  
Sara Erkfeldt ◽  
...  
Keyword(s):  
Control System ◽  
Emission Control ◽  
System A ◽  
Trap System ◽  
Diesel Emission ◽  
Diesel Emission Control ◽  
Emission Control System ◽  
And Performance

Application Fuzzy Logic System for Accurate Sheet Trim Shower Position

2019 ◽  
Vol 3 (1) ◽  
pp. 186-192
Author(s):  
Yudi Wibawa
Keyword(s):  
Fuzzy Logic ◽  
Fuzzy Logic Controller ◽  
Dc Motor ◽  
Automation System ◽  
Paper Making ◽  
System A ◽  
Accurate Position ◽  
And Performance ◽  
Better Than ◽  
Logic System

This paper aims to study for accurate sheet trim shower position for paper making process. An accurate position is required in an automation system. A mathematical model of DC motor is used to obtain a transfer function between shaft position and applied voltage. PID controller with Ziegler-Nichols and Hang-tuning rule and Fuzzy logic controller for controlling position accuracy are required. The result reference explains it that the FLC is better than other methods and performance characteristics also improve the control of DC motor.

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