20 May 2008
Heat pumps are among the most promising technologies to reduce global warming
emissions and to more rationally use energy. The analysis of the transformation chain
accounting for various technologies starting from the electricity production shows that
systems including heat pumps result in higher efficiencies than presently dominant
technologies. However the full exploitation of the potential of heat pumps requires further
technological progress and among them, oil-free hermetic compressors have a major role to
play both from a global environment standpoint and from a miniaturization consideration.
This is valid for decentralized and centralized heat pump systems as well as for the
numerous opportunities for heat pump in industrial processes. Novel district heating and
cooling systems with heat pumps and an efficient coupling with advanced cogeneration units
are also important factors for the more sustainable cities of tomorrow.