Primary energy used in centralized and decentralized ventilation systems measured in field tests in residential buildings

Ventilation systems can save heat energy by using heat recovery, but consume electrical energy to power the fans. In practice, the energy efficiency of those systems can be lower than expected, when compared to the nominal values provided by the manufacturer. In this paper, results of a comprehensive field tests with 20 centralized and 60 decentralized ventilation systems for residential buildings and the calculation of the primary energy savings of those devices are presented.

THERMAL INSULATION MATERIALS FOR SUSTAINABLE BUILT ENVIRONMENT

It is a widely spread misunderstanding that highly insulated buildings perform poorly with respect to theindoor environment.