Energy Performance Monitoring and Optimization System for DoD Campuses
EW-201142
Objective
The objective of this project is to demonstrate a campus-scale building energy performance monitoring and optimization (EPMO) system prototype. The EPMO system technology utilizes robust algorithms for dynamic optimization of control schedules and analytical tools for energy performance visualization and diagnostics for building and district cooling systems. Technical objectives are to demonstrate 20% energy savings and enhanced campus system operational effectiveness and EPMO system robustness and scalability to multiple campus buildings served by a district cooling system.
Technology Description
The campus-scale EPMO system will be implemented as a stand-alone software environment, comprising control and diagnostic algorithms and performance visualization tools that will interface directly with the Naval Station Great Lakes Building Management System in Illinois. The key enabling technologies are (1) reduced-order dynamic models for the campus cooling plant, building, and HVAC systems; (2) optimal control algorithms for the district cooling system integrated with online parameter estimation to dynamically update control inputs; and (3) tools for online energy performance visualization and automated detection, isolation, and prioritization of faults that impact performance adversely. The technical challenges that must be overcome to provide a robust campus-scale EPMO system are (1) obtaining models of the cooling plant, buildings, and control systems that can be assembled rapidly and deployed easily in commercially available building management system platforms; (2) achieving energy consumption reduction through advanced controls when the loads and demand are highly uncertain and actuators are constrained; and (3) developing techniques for energy performance visualization and diagnostics to automatically detect and isolate faults that are responsible for system-level performance degradation. This project seeks to deliver a single platform and operator environment that integrates optimal control algorithms that use real-time data and predictive physics-based models, with performance monitoring and diagnostic tools that measure actual cooling plant and building energy performance.
Benefits
It is expected that the broad deployment of a campus building EPMO system for district cooling systems at Department of Defense (DoD) facilities will deliver and sustain 20% energy savings achieving greater than 0.75 billion kWh per year, or $75 million per year, with a tangible reduction of 450,000 metric tons of CO2 per year. The energy reduction is achieved by providing HVAC set points that optimize system-level performance and applying energy performance monitoring and diagnostics that enable facility engineers to more proactively identify and correct poor system performance. For the selected demonstration site at Naval Station Great Lakes, the expected simple payback is less than 3 years. (Anticipated Project Completion - 2013)
Points of Contact
Principal Investigator
Dr. Trevor Bailey
United Technologies Research Center
Phone: 860-610-1554
Document Types
- Fact Sheet - Brief project summary with links to related documents and points of contact.
- Final Report - Comprehensive report for every completed SERDP and ESTCP project that contains all technical results.
- Cost & Performance Report - Overview of ESTCP demonstration activities, results, and conclusions, standardized to facilitate implementation decisions.
- Technical Report - Additional interim reports, laboratory reports, demonstration reports, and technology survey reports.
- Guidance - Instructional information on technical topics such as protocols and user’s guides.
- Workshop Report - Summary of workshop discussion and findings.
- Multimedia - On demand videos, animations, and webcasts highlighting featured initiatives or technologies.
- Model/Software - Computer programs and applications available for download.
- Database - Digitally organized collection of data available to search and access.
