Accession Number:

ADA090280

Title:

An Automatic Isokinetic Sampler for Particulate Emissions from Aircraft Gas Turbine Engines.

Descriptive Note:

Final rept. Feb 75-Jun 78,

Corporate Author:

ACUREX CORP MOUNTAIN VIEW CA ENERGY AND ENVIRONMENTAL DIV

Personal Author(s):

• Dehne,Hans-Joachim

Report Date:

1980-01-01

Pagination or Media Count:

37.0

Abstract:

An automated isokinetic sampler for evaluating particulate emissions from aircraft gas turbine engines was designed, constructed and tested. The sampler is capable of collecting the particulate mass emitted by an aircraft gas turbine at the exit plane non-afterburner operation for gravimetric measurements and permits simultaneous on-line particle size distribution measurements to be performed. The particulate is collected on a fiber glass filter for gravimetric measurement. The size distribution is determined by conditioning the gas turbine exhaust gases and passing them through a mobility particulate size distribution analyzer. The sampler has two-axis traverse capability and a maximum sampling capability of 226 1min 8 scfm. Test data are automatically recorded. Control of the sampler is by means of 12-bit microprocessor. Preliminary tests were performed at the Naval Air Rework Facility, Alameda, California, at various construction stages of the sampler to evaluate its performance and to measure the effects of fuel additives on particulate emissions on a TF41 gas turbine engine. Author

Descriptors:

• *TURBOFAN ENGINES
• *EMISSION
• *GAS TURBINES
• *PARTICULATES
• *SAMPLERS
• *COMBUSTION PRODUCTS
• PARTICLE SIZE
• AIR POLLUTION
• MICROPROCESSORS
• AIRCRAFT ENGINES
• DISTRIBUTION
• FLOW
• SUPERSONIC FLOW
• FUEL ADDITIVES

Subject Categories:

• Test Facilities, Equipment and Methods
• Jet and Gas Turbine Engines
• Air Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE