NASA Scientific and Technical Aerospace Reports - The University ...

emission model, design of modeling scenarios, and conducting the traffic simulation and emission calculation for each
scenario. The GA-based calibration approach defines the index of simulation accuracy as sum of squared errors (SSE) between
the collected speeds and the simulated speeds at the cross-sections along the road. The program named AUTOSIM was
developed to indirectly express the complex and nonlinear relationship between the SSE and the driving behavior parameters.
The computer program implementing the GA-based approach was also developed to search the optimal parameters values
simultaneously and easily. IAH was modeled as the case study. The field speed data were collected using GPS. The calibrated
optimal values of the VISSIM driving behavior parameters were derived for IAH loop, which resulted in a 50 percent decrease
of SSE value. The number of speed errors greater than 10 percent at the cross-sections decreased from 22 to 2 for the selected
physical section. The produced emissions of each vehicle by second show that the emission profiles well reflect the trends of
the speed profile. The calculated emissions for one week of August 2002 are 61.430kg of CO, 26.849kg of HC, 271.896kg
of CO2 and 61.603kg of NOx.
NTIS
Airports; Traffıc
06
AVIONICS AND AIRCRAFT INSTRUMENTATION
Includes all avionics systems, cockpit and cabin display devices, and flight instruments intended for use in aircraft. For related
information see also 04 Aircraft Communications and Navigation; 08 Aircraft Stability and Control; 19 Spacecraft Instrumentation and
Astrionics; and 35 Instrumentation and Photography.
20100017787 Boise State Univ., Boise, ID, USA; Auburn Univ., AL, USA; Federal Aviation Administration, Washington,
DC, USA
Evaluation of the Effects of Hydrogen Peroxide on Common Aircraft Electrical Materials
Loo, Sin Ming; Kiepert, Josh; Klein, Derek; Pook, Michael; Chou, Shih-Feng; Overfelt, tony; March 2010; 20 pp.; In English;
Original contains black and white illustrations
Contract(s)/Grant(s): Co-Op Agrmt No. 07-C-RITE-BSU
Report No.(s): DOT/FAA/AM-10/5; Copyright; Avail.: CASI: A03, Hardcopy
Aircraft can be contaminated with unwanted chemical or biological elements. For years, hydrogen peroxide has been used
to disinfect equipment in the medical community. The diluted vapor form of hydrogen peroxide is being considered for use
as a decontaminant/disinfectant/sanitizer of transportation vehicles aircraft, buses, subway trains, ambulances, etc. Previous
work showed that STERlS Corporation’s Vaporized Hydrogen Peroxide (VHP(r)) technology could be used successfully in
complex transportation vehicles. However, the compatibility of the process with typical aircraft avionics has not been
established. This report documents a preliminary evaluation of the effects of hydrogen peroxide exposure on avionics (i.e.,
avionics wires, active circuit boards, and dummy circuit boards).
Author
Decontamination; Hydrogen Peroxide; Aircraft Equipment; Aircraft Instruments; Antiseptics; Antiinfectives and
Antibacterials
07
AIRCRAFT PROPULSION AND POWER
Includes primary propulsion systems and related systems and components, e.g., gas turbine engines, compressors, and fuel systems;
and onboard auxiliary power plants for aircraft. For related information see also 20 Spacecraft Propulsion and Power; 28 Propellants
and Fuels; and 44 Energy Production and Conversion.
20100017786 Dayton Univ. Research Inst., OH, USA
Effects of Operating Jet Fuels Below the Specification Freeze Point Temperature Limit
Zabarnick, S.; Ervin, J.; January 2010; 70 pp.; In English
Report No.(s): PB2010-107341; No Copyright; Avail.: National Technical Information Service (NTIS)
In the USA, commercial jet aircraft operations are currently limited to measured wing tank fuel temperatures that are
greater than 3DGC above the fuel specification freeze point. In recent years, long-duration polar routes have been open, which
result in fuel being subjected to lower temperatures for longer periods. When the measured in-tank fuel temperature
approaches these low-temperature limits, pilots are forced to modify flight path, altitude, and/or airspeed to raise these
temperatures. As many fuel samples have freeze points that are significantly below the fuel specification, airlines would like
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