Reduction of Particulate Emissions in Turbine Engines Using the +100 Additive ESTCP Project 200121
Abstract
The impacts on particulate and gaseous emissions from gas turbine engines using the Betz Dearborn Spec Aid 8Q462 (+100) thermal stability additive were evaluated. Emissions tests with and without the additive were conducted on two TF33 engines, two T-43 pilot trainer aircraft (AF equivalent to a B737) with JT8D-9A engines, and a T63 helicopter engine. Test results showed that the effects of the additive on emissions were dependent on the engine and power setting. For instance, measurable reductions (~20-25%) in particle number density (PND) were observed with the additive for the TF33 engine at a near cruise condition; however, negligible effects were observed for the other four conditions. For gaseous emissions, reductions up to 20% in total unburned hydrocarbons (THC) were observed for all conditions for the second TF33 engine tests. Similar gaseous emissions results were observed in the T63 tests. No evidence of improved particulate or gaseous emissions as a function of operation time with the additive was observed in the T63 long duration tests. For the first TF33 demonstration, chemical characterization of the particles showed increased concentration of polycyclic aromatic hydrocarbons (PAH) as a function of engine power with no significant impacts with the +100 additive. Reductions of up to 40% in PND were observed for one of the JT8D-9A engines with the additive; however, mixed results were observed for the other three.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2005
- Accession Number
- ADA444755
Entities
People
- Edwin Corporan
- Orvin Monroig
Organizations
- Air Force Research Laboratory