Performance Optimization of Bias Bar-Type Brake System Using Data Acquisition System (DAQ)

Author(s):  
Megh Doshi ◽  
Suhrid Subramaniam ◽  
Sachin Patel ◽  
Meet Shah
2015 ◽  
pp. 364-369
Author(s):  
Jorge L.M. Neves ◽  
Kelen Cypriani ◽  
Natália de C.T. Calori ◽  
Thales H.Y. Noleto

The study aims to reduce mechanical damage to the buds and billets of seedcane, evaluating the effect of the synchronization between the speed of roller feed train and of the harvester in terms of harvested seedcane quality. A conventional harvester was improved through the introduction of hydraulic oil flow valves, who controlled the speed of the rollers using data gathered by 5 speed sensors and a data acquisition system. The trials were carried out with seeds of the CTC 9 and CTC 14 varieties under treatments of conventional and synchronized harvesting. For the CTC 9 variety the amount of inviable buds decreased from 15.8% to 12.7%. In case of the CTC 14 variety the amount of inviable buds decreased from 10.4% to 8.3%. The amount of optimum and regular billets increased by 8.2% from 65.9 % to 74.1%. In general, the changes proposed, linked to the synchronism of speed, have shown promise in increasing the quality of sugarcane seeds obtained by mechanical harvesting.


Author(s):  
Peter J. Stuttaford ◽  
Vince Martling ◽  
Andrew Green ◽  
Timothy C. Lieuwen

The design of modern gas turbine combustors continues to be driven by the demand for lower emissions of NOx and CO. Achieving reduced emissions on dry low emissions combustors necessitates the monitoring of associated, potentially destructive combustion noise. Power Systems Manufacturing (PSM) has developed a Dynamic Data Acquisition System for use in the noise performance optimization and health monitoring of low emissions combustors. Various noise probes and set-ups have been evaluated on test benches, combustion test rigs, and engines operating over their complete load range. The set-up and calibration of the combustion dynamic monitoring system is described here. An application of the dynamic data acquisition system is presented for the PSM combustor retrofit of the 85MW General Electric Frame MS7001EA machine, achieving 6ppm NOx, and 2ppm CO at base load and maintaining single digit emissions down to 50% load. The excellent condition of the combustion hardware following 8,000 hours of base load operation was indicative of operation in a low combustion noise environment. Combustion system noise monitoring ensures the lowest possible emissions, without compromising combustion hardware durability through excessive dynamic loading.


2007 ◽  
Vol 22 (24) ◽  
pp. 1769-1778 ◽  
Author(s):  
◽  
ANDREA SILVESTRI

The Antarctic Muon And Neutrino Detector Array (AMANDA) has been taking data since 2000 and its data acquisition system was upgraded in January 2003 to read out the complete digitized waveforms from the buried Photomultipliers (PMTs) using Transient Waveform Recorders (TWR). This system currently runs in parallel with the standard AMANDA data acquisition system. Once AMANDA is incorporated into the 1 km3 detector IceCube, only the TWR system will be kept. We report results from a first atmospheric neutrino analysis on data collected in 2003 with TWR. Good agreement in event rate and angular distribution verify the performance of the TWR system. A search of the northern hemisphere for localized event clusters shows no statistically significant excess, thus a flux limit is calculated, which is in full agreement with previous results based on the standard AMANDA data acquisition system. We also update the status of a search for diffusely distributed neutrinos with ultra high energy (UHE) using data collected by the TWR system.


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