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Full-Text Articles in Engineering
Virtualization Of Closed-Loop Sensor Networks, Priyanka Dattatri Kedalagudde
Virtualization Of Closed-Loop Sensor Networks, Priyanka Dattatri Kedalagudde
Masters Theses
The existing closed-loop sensor networks are based on architectures that are designed and implemented for one specific application and require dedicated sensing and computational resources. This prevents the sharing of these networks. In this work, we propose an architecture of virtualization to allow sharing of closed-loop sensor networks. We also propose a scheduling approach that will manage requests from competing applications and evaluate their impact on system utilization against utilization achieved by more traditional, dedicated sensor networks. These algorithms are evaluated through trace-driven simulations, where the trace data is taken from CASA’s closed-loop weather radar sensor network. Results from this …
Operational Planning In Combined Heat And Power Systems, Hariharan Gopalakrishnan
Operational Planning In Combined Heat And Power Systems, Hariharan Gopalakrishnan
Doctoral Dissertations
This dissertation presents methodologies for operational planning in Combined Heat and Power (CHP) systems. The subject of experimentation is the University of Massachusetts CHP system, which is a 22 MWe/640 MBh system for a district energy application. Systems like this have complex energy flow networks due to multiple interconnected thermodynamic components like gas and steam turbines, boilers and heat recovery steam generators and also interconnection with centralized electric grids. In district energy applications, heat and power requirements vary over 24 hour periods (planning horizon) due to changing weather conditions, time-of-day factors and consumer requirements. System thermal performance is highly dependent …