Saab Direct Ignition System and Its Cold Start Performance

Test Study and Development of High Energy Direct Ignition System for Electronic Control CNG Engine

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.201-203.610 ◽

2011 ◽

Vol 201-203 ◽

pp. 610-613 ◽

Cited By ~ 1

Author(s):

Qi Ping Chen ◽

Hong Yu Shu ◽

Chong Huai Shi

Keyword(s):

Test Bench ◽

High Energy ◽

Optimal Test ◽

Engine Emissions ◽

Compressed Natural Gas ◽

Current Time ◽

Ignition System ◽

Test Study ◽

Cng Engine ◽

Direct Ignition

According to the requirements of heavy commercial compressed natural gas (CNG) vehicle to satisfy China’s rapid economic development, the authors develop and test a new high energy direct ignition system of heavy CNG engine. Hardware and software of the high energy direct ignition system are designed and debugged. Based on the tradition test bench, an optimal test bench for this CNG engine is established. Ignition advance angle is calibrated and analyzed, which has the economy and power performances effects on CNG engine matched the developed high energy direct ignition system. To test the effects on engine emissions by high energy direct ignition system, ignition control strategy is simplified and optimized. In addition, high ignition energy is directly determined by current time of ignition coil power. A test study about torque, power and fuel consumption of this engine is accomplished. The final test results indicate that this developed high energy ignition direct system can satisfy the comprehensive performance objectives of heavy CNG engine.

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Fabrication and testing of an enhanced ignition system to reduce cold-start emissions in an ethanol (E85) light-duty truck engine

10.2172/537315 ◽

1997 ◽

Author(s):

D Gardiner ◽

R Mallory ◽

M Todesco

Keyword(s):

Cold Start ◽

Ignition System ◽

Light Duty ◽

Truck Engine ◽

Light Duty Truck

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Pilot-Scale Experiences on a Plasma Ignition System for Pulverized Fuels

Energies ◽

10.3390/en14164726 ◽

2021 ◽

Vol 14 (16) ◽

pp. 4726

Author(s):

Reyhane Youssefi ◽

Jörg Maier ◽

Günter Scheffknecht

Keyword(s):

Particle Size ◽

Moisture Content ◽

Power Plants ◽

Thermal Power ◽

Cold Start ◽

Pilot Scale ◽

Fuel Quality ◽

Ignition System ◽

Plasma Ignition ◽

Start Up

The need for flexible power generation is growing worldwide as the energy transition is altering the operational regimes of thermal power plants. Plasma ignition systems, as an alternative technology to the conventional start-up method with natural gas or oil firing, offer a cost- and energy-efficient start-up process in pulverized fuel power stations. The application of plasma ignition systems for cold start-ups using different qualities of pre-dried lignite is investigated in a pilot-scale combustion facility. A plasma integrated swirl burner is developed and validated using highly ignitable lignite dust. Eight pre-dried lignite qualities with a moisture content of up to 30% and a broad particle size distribution are investigated for this application to determine the applicability and limitations of the plasma ignition system with regard to the fuel quality. The performance of lignites for cold start-up in the plasma ignition system are categorized based on their ignition and combustion performance. All lignite qualities were ignited under the cold-start-up condition with a plasma power of 4 kW to 7 kW. Lignite qualities with a moisture content of up to 20% and a median particle size of below 450 μm form a self-sustained flame with short-time plasma-supported combustion, while flame blow-out is observed for lignites with lower qualities.

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