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原文传递 Development of a Mechanical Rocker Test Procedure for Ice Melting Capacity Evaluation.

题名：	Development of a Mechanical Rocker Test Procedure for Ice Melting Capacity Evaluation.
作者：	Albers, T.; Tuan, C. Y.
关键词：	Dynamic Response; High Speed Ground Transporter; Ice Melting; Liquid Deicing Chemical; Safety Engineering; Transportation Safety; Vehicle Dynamics; Vehicle Performance; Wheel Rail Interface
摘要：	During Phase 2 of the NDOR deicing chemicals performance evaluation project (No. SPR-P1(10) P328), a simple and economical test using a martini shaker to evaluate ice melting capacity of liquid deicers showed good potential to become a standardized test. There is a need to support an internal effort at NDOR to further develop the shaker test into a deicing chemicals test protocol. A number of parameters of the testing procedure need to be precisely specified to ensure repeatability and accuracy. The main objective of this research is to transform the shaker test into a gold standard for ice melting capacity evaluation of liquid deicing chemicals. This research focused on the use of a mechanical rocker for shaking instead of shaking by hand which can introduce significant error due to the variability of shaking. In this test, 33 ice cubes of 1.3-mL each and 30-mL of liquid deicing chemical are mixed in a vacuum sealed thermos on a mechanical rocking platform. The rocker is set to a frequency of 90 RPM with a tilt angle of -10DG. The time duration for rocking is set for 15 minutes. Styrofoam dish or cup should be used for measuring the mass of ice. With these test parameters, a standard deviation of 1.15% has been achieved when testing with Apex Meltdown. This Mechanical Rocker Ice Melting Test procedure will be submitted to selected Departments of Transportation and Clear Roads for parallel testing and feedback. The Mechanical Rocker Ice Melting Test can be used for screening of new deicing products submitted to NDOR by vendors each year. Once validated by other independent organizations, the Mechanical Rocker Ice Melting Test may be proposed to the AASHTO for adoption for ice melting capacity evaluation of liquid deicing chemicals.
报告类型：	科技报告