Packaged Cooling, Heating & Power Integrated Energy System

Packaged Cooling, Heating & Power Integrated Energy System

Location: Austin, Texas

Client: Department of Energy

Completion Date: 2005

Burns & McDonnell was selected by the Department of Energy (DOE) to work with Oak Ridge National Laboratory and was awarded $3 million in cost share funding to develop a packaged cooling, heating and power (CHP) integrated energy system.

Burns & McDonnell first conducted an extensive national site selection search to determine the best site for the project. The project was sited at the Domain Technology Business Park in Austin, Texas, adjacent to an existing central utility plant owned and operated by Austin Energy. Austin Energy agreed to provide the balance of funding and to own and operate the CHP development project.

For More Information

Technical Paper: Performance Results & Lessons Learned
Article: Burns & Mac Delivers All Kinds of Wow
Article: Gas Turbine World

Burns & McDonnell utilized a Solar Turbines Centaur 50 natural gas combustion turbine as the prime mover for the project and a Broad Air Conditioning 2500 heat recovery two-stage absorption chiller. The turbine provided 4.3 megawatts of on-site electrical power, and the exhaust from the combustion turbine was used as the sole heat source for the heat recovery absorption chiller.

Burns & McDonnell provided all design and construction services for the project. The entire packaged integrated energy system project took less than nine months to complete, while installation of the CHP modules took less than three months including startup and commissioning. Total cost of the project was $8.3 million, including 12 months of monitoring and benchmarking. Preliminary performance of the CHP demonstration project indicates the system is capable of producing 4.3 megawatts of on-site power and more than 2,630 tons of 44 degree chilled water. Overall system efficiency has been documented to be greater than 80 percent with recorded emissions without catalyst of 9 ppm NOx. The project was one of the first to utilize the output based emissions formula developed by the Texas Commission on Environmental Quality.

The Burns & McDonnell DOE CHP Demonstration Project received an engineering excellence award in 2005 by the Texas Council of Engineering Companies. The project has also received the U.S. Environmental Protection Agency Energy Star Recognition.

The system comprises seven pre-engineered and fabricated modules:

  • Combustion turbine generator
  • Combustion turbine inlet cooling coils
  • Turbine exhaust diverter value skid
  • Heat recovery absorption chiller
  • Chiller exhaust stack skid
  • Condenser water pump and control room skid
  • Natural gas compressor skid