Low Exergy

Low Exergy (LowEx) building systems employ a strategy that recognizes the value of temperature and matches systems through better integration and intelligent energy utilization cascades.

LowEx Communities – IEA Annex 64

International Energy Agency (IEA) Energy in Buildings and Communities (EBC) Annex 64 on Low Exergy Communities

Prof. Meggers is leading a Subtask A on Sources and Supply, specifically on the potential of distributed heat pump systems compared to cogeneration systems offering waste heat

http://www.iea-ebc.org/projects/ongoing-projects/ebc-annex-64/

Turbo Heat Pumps

A new heat pump in development by BS2 in Switzerland and in collaboration with ETH Zurich and HSLU in Lucerne will be leveraged for research at Princeton on low temperature lift systems. It has been shown potential to operate with internal COP of 18 at a temperature lift of 12K.

http://bs2.ch/de/Development/Niederhub-Warmepumpe.aspx

COP plot

Research team led by Prof Forrest Meggers, faculty jointly appointed in the School of Architecture and the Andlinger Center for Energy and the Environment.