Evaluation of Asphalt Drainable Base Structural Performance for Flexible Airport Pavement Design

2018 ◽  
Vol 2672 (23) ◽  
pp. 128-136
Author(s):  
Qiang Li ◽  
Benjamin Mahaffay ◽  
Jeffrey Gagnon
Keyword(s):  
Data Analysis ◽  
Test Data ◽  
Full Scale ◽  
Pavement Design ◽  
Test Facility ◽  
Construction Specifications ◽  
Airport Pavement ◽  
Dry Conditions ◽  
Design Software ◽  
Aggregate Base

In 2014, the Federal Aviation Administration’s (FAA) National Airport Pavement Test Facility (NAPTF) completed construction of its flexible pavement test section, Construction Cycle 7 (CC7). Among the objectives of CC7 was to study the performance of an asphaltic drainable base pavement section compared with a P-209 aggregate base pavement section under full-scale airport loading. This research addresses the pre-traffic material characterization, full-scale traffic test data analysis and post-traffic test data analysis of these two pavement sections in dry conditions. This paper will discuss the preliminary results from laboratory testing and full-scale traffic tests for material properties which may be used in design and construction specifications to improve FAA pavement design software (FAARFIELD).

Experimental Evaluation of the Transient Behavior of a Compressor Station During Emergency Shutdowns

2009 ◽  
Author(s):  
J. Jeffrey Moore ◽  
Rainer Kurz ◽  
Augusto Garcia-Hernandez ◽  
Klaus Brun
Keyword(s):  
Test Data ◽  
Transient Behavior ◽  
Primary Objective ◽  
Full Scale ◽  
Test Facility ◽  
Data Sets ◽  
Domain Modeling ◽  
Validation Data ◽  
The Public ◽  
Compressor Surge

The transient behavior of compressor stations, particularly under rapidly changing conditions, is of vital interest to operators. Predicting transient behavior is an important factor in avoiding damage during events such as emergency shutdowns. A limited number of “accidental” data sets from compressor manufacturers and users are available in the public literature domain. A variety of simulations and modeling approaches have been presented over the last few years at industry conferences. The available experimental data is not of sufficient quality and resolution to properly compare predictions with analytical results or simulations available in current software packages. Necessary information about the compressor, the driver, the valves, and the geometry of the system is often missing. Currently utilized software has not been adequately validated with full-scale realistic benchmark data, as this data is not available in the public domain. Modeling procedures and results of surge control system simulations seldom contain validation data achieved through actual testing. This type of transient test data for a dynamic surge condition is often difficult to obtain. The primary objective of this work is to develop experimental transient compressor surge data on a full scale test facility, which would facilitate the verification and comparison of existing and future transient surge models. Results of the testing and model comparisons will be documented. Relevant, dimensionless parameters will be presented and validated utilizing the test data. Conclusions from the testing and recommendations for the transient analysis software will be provided.

Experimental Evaluation of the Transient Behavior of a Compressor Station During Emergency Shutdowns

2010 ◽  
Vol 132 (6) ◽  
Author(s):  
J. Jeffrey Moore ◽  
Rainer Kurz ◽  
Augusto Garcia-Hernandez ◽  
Klaus Brun
Keyword(s):  
Test Data ◽  
Transient Behavior ◽  
Primary Objective ◽  
Full Scale ◽  
Test Facility ◽  
Data Sets ◽  
Domain Modeling ◽  
Validation Data ◽  
The Public ◽  
Compressor Surge

The transient behavior of compressor stations, particularly under rapidly changing conditions, is of vital interest to operators. Predicting transient behavior is an important factor in avoiding damage during events such as emergency shutdowns. A limited number of “accidental” data sets from compressor manufacturers and users are available in the public literature domain. A variety of simulations and modeling approaches have been presented over the last few years at industry conferences. The available experimental data is not of sufficient quality and resolution to properly compare predictions with analytical results or simulations available in current software packages. Necessary information about the compressor, driver, valves, and geometry of the system is often missing. Currently utilized software has not been adequately validated with full-scale realistic benchmark data, as this data is not available in the public domain. Modeling procedures and results of surge control system simulations seldom contain validation data achieved through actual testing. This type of transient test data for a dynamic surge condition is often difficult to obtain. The primary objective of this work is to develop experimental transient compressor surge data on a full-scale test facility, which would facilitate the verification and comparison of existing and future transient surge models. Results of the testing and model comparisons will be documented. Relevant, dimensionless parameters will be presented and validated utilizing the test data. Conclusions from the testing and recommendations for the transient analysis software will be provided.

THE EFFECTIVENESS OF PRACTICUM KIT AS A LEARNING MEDIA TO TRAIN SPS ON REACTION LAW

2020 ◽  
Vol 3 (2) ◽  
pp. 35
Author(s):  
Sigit Trimayanto ◽  
Dian Novita
Keyword(s):  
Data Analysis ◽  
Research And Development ◽  
Learning Outcomes ◽  
Test Data ◽  
Reaction Rate ◽  
Cognitive Learning ◽  
Science Process Skills ◽  
Is Research ◽  
Post Test ◽  
The Media

This study aims to produce the Practical KIT along with its devices that are effectively used as learning media to train students SPS on the sub material of the Reaction Rate Law. The method used in this study is Research and Development design. The research instrument used consisted of a sheet of pre-test and post-test. Data analysis was carried out in descriptive quantitative to determine the effectiveness of Practical KIT along with the devices developed. The media is said to be effective if it meets 2 requirements, namely the percentage of classical completeness <85% and N-gain value <0.3. The developed media has been declared effective as indicated by the increase in the value of cognitive learning outcomes in the "Medium" and "High" categories with 100% classical completeness, an increase in the value of science process skills of students after using the Practical KIT media. "With classical completeness reaching 91.67%.

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