Evaluating and improving the tools for predicting discolouration events in potable water supply system

Complaints regarding discoloured water are one of the major concerns facing water utilities. This research critically evaluates relevant tools and seeks a fundamental understanding of the causes of discoloured water, using considerable system data. Hydraulicevents, as opposed to pipe dirtiness, are critical, raising the question of the relevance of expensive cleaning procedures by water utilities. In order to resolve these issues, a more effective management approach is proposed, sufficient to prevent future discolouration events

Improving root cause analysis through the integration of PLM systems with cross supply chain maintenance data

The purpose of this paper is to demonstrate a system architecture for integrating Product Lifecycle Management (PLM) systems with cross supply chain maintenance information to support root-cause analysis. By integrating product-data from PLM systems with warranty claims, vehicle diagnostics and technical publications, engineers were able to improve the root-cause analysis and close the information gaps. Data collection was achieved via in-depth semi-structured interviews and workshops with experts from the automotive sector. Unified Modelling Language (UML) diagrams were used to design the system architecture proposed. A user scenario is also presented to demonstrate the functionality of the system

System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections

Low voltage direct current (LVDC) distribution has gained the significant interest of research due to the advancements in power conversion technologies. However, the use of converters has given rise to several technical issues regarding their protections and controls of such devices under faulty conditions. Post-fault behaviour of converter-fed LVDC system involves both active converter control and passive circuit transient of similar time scale, which makes the protection for LVDC distribution significantly different and more challenging than low voltage AC. These protection and operational issues have handicapped the practical applications of DC distribution. This paper presents state-of-the-art protection schemes developed for DC Microgrids. With a close look at practical limitations such as the dependency on modelling accuracy, requirement on communications and so forth, a comprehensive evaluation is carried out on those system approaches in terms of system configurations， fault detection, location, isolation and restoration

An analysis of field feedback in consumer electronics industry

XI+133hlm.;24c

HVAC SYSTEM REMOTE MONITORING AND DIAGNOSIS

A monitoring system for an HVAC system of a building includes a monitoring server located remotely from the building. The monitoring server receives, from a device installed at the building, (i) time-domain current data based on a measured aggregate current supplied to a plurality of components of the HVAC system, and (ii) data based on frequency-domain current data of the measured aggregate current. Based on the received data, the monitoring server accesses (i) whether a failure has occurred in a first com ponent of the plurality of components and (ii) generates a preliminary advisory in response to determining that the failure has occurred. The monitoring server compares the preliminary advisory to a threshold value based on data stored from prior advisories. If the preliminary advisory is on a first side of the threshold value, the monitoring server provides the preliminary advisory as a first advisory to a technician for review

An Efficient Fuel Management System to Address the Ongoing Fuel Crisis in Sri Lanka

The economic crisis has made huge impacts on people’s lives to the extent that certain daily tasks no longer feel normal, like pumping fuel from a fuel station. Mental and health conditions of people are deteriorating due to these types of issues which must immediately be addressed. This paper discusses about a proposed fuel management system to eliminate or at least reduce this unnecessary hassle for the public and fuel stations also illustrating and discussing the available systems for the same. New innovative features have been proposed to this system respective to the system already in use which is believed that it will vastly help in managing fuel more efficiently for both distribution and pumping. We also believe that the data collected through the system will also be very useful in making prediction models for the government as well, to make certain decisions. Another aim of this system is eliminating the black market for fuel which has been created putting more pressure on people and the government by a complaint management feature and tracking fraudulent fuel stations using a formula which has been proposed. Thus, we hope this system will aid both for the government and the public for an efficient fuel management

Proceedings, MSVSCC 2016

Proceedings of the 10th Annual Modeling, Simulation & Visualization Student Capstone Conference held on April 14, 2016 at VMASC in Suffolk, Virginia