Combination power-heat system created

August 12, 2005

U.S. grocery stores, schools, hotels and hospitals are likely candidates for a high-efficiency system that provides heating, cooling and electric power.

The PureComfort system -- developed through a partnership between Oak Ridge National Laboratory and United Technologies Research Center -- features a combination of 60-kilowatt microturbines and a new direct exhaust-fired double-effect absorption chiller-heater that recycles exhaust streams.

The system provides simultaneous electric power and cooling. Bob DeVault of the Oak Ridge National Laboratory's Engineering Science and Technology Division said the system could be configured to provide emergency backup power to the customer in case of an electric outage.

Optionally, PureComfort could provide heating, regenerate a desiccant -- for humidity control -- and provide coolant to a supermarket refrigeration system. The combination of multiple simultaneous electric and thermal outputs enables the system to achieve an overall fuel efficiency of more than 80 percent -- compared to the 33 percent typical of a central power plant.

Copyright 2005 by United Press International

Explore further: From trees to power: Engineers build better energy storage device

Related Stories

Recommended for you

Horn of Africa drying ever faster as climate warms

October 9, 2015

The Horn of Africa has become increasingly arid in sync with the global and regional warming of the last century and at a rate unprecedented in the last 2,000 years, according to new research led by a University of Arizona ...

A mission to a metal world—The Psyche mission

October 9, 2015

In their drive to set exploration goals for the future, NASA's Discovery Program put out the call for proposals for their thirteenth Discovery mission in February 2014. After reviewing the 27 initial proposals, a panel of ...

Scientists paint quantum electronics with beams of light

October 9, 2015

A team of scientists from the University of Chicago and the Pennsylvania State University have accidentally discovered a new way of using light to draw and erase quantum-mechanical circuits in a unique class of materials ...


Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.