Effect of Materials on the Autoignition of Cyclopentane

Conference · Thu Mar 01 04:00:00 EST 2012

OSTI ID:1042345

Guillen, Donna Post; Walls, Mark

Cyclopentane, a flammable hydrocarbon, is being considered as a working fluid for waste heat recovery applications. Experiments were conducted to determine the ignition delay time (IDT) of cyclopentane using an Ignition Quality Test (IQT) device. Two sets of experiments were conducted per ASTM D6890 (with exception to charge pressure and temperature) to determine ignition delay of the fuel at atmospheric pressure for normal air ({approx}21% oxygen) and vitiated air (13.3% oxygen) at a temperature of 530 C. Operation of the IQT device at a much lower pressure (1 bar) than normal operation (21.1 bar) led to very rich conditions and wetting of the stainless steel chamber walls. Catalytic effects produced small IDTs. Experiments were repeated with a modified injector to prevent wall wetting, resulting in average IDTs that are substantially longer.

• Research Organization: Idaho National Laboratory (INL)
• Sponsoring Organization: DOE - EE
• DOE Contract Number: AC07-05ID14517
• OSTI ID: 1042345
• Report Number(s): INL/CON-11-22877
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
42 ENGINEERING
AIR
ATMOSPHERIC PRESSURE
AUTOIGNITION
CATALYTIC EFFECTS
CYCLOALKANES
FLAMMABILITY
FUELS
HEAT RECOVERY
HYDROCARBONS
IGNITION
IGNITION QUALITY
OXYGEN
WASTE HEAT UTILIZATION
WORKING FLUIDS
waste heat recovery
organic working fluid
autoig