The recast of the Directive on energy performance of buildings introduces nearly zero-energy buildings. In this paper we discuss about what the expression “zero-energy building” could mean and how an existing Passivhaus might be improved to reach the zero-energy target in Italy, and to achieve satisfactory thermal comfort levels in summer in accordance to the norm EN 15251. A feasible way for this optimization was identified in the installation of an earth-to-air heat exchanger. Its contribution is rather limited during winter, if it is coupled to a high efficient heat recovery unit, while it becomes a solution of primary importance to reduce, or even neutralize, the energy required to reach summer comfort.

A Way To Net Zero Energy Buildings For Italy: How The Earth-To-Air Heat Exchanger Could Contribute To Reach The Target In Warm Climates

PAGLIANO, LORENZO;ZANGHERI, PAOLO;CARLUCCI, SALVATORE
2010

Abstract

The recast of the Directive on energy performance of buildings introduces nearly zero-energy buildings. In this paper we discuss about what the expression “zero-energy building” could mean and how an existing Passivhaus might be improved to reach the zero-energy target in Italy, and to achieve satisfactory thermal comfort levels in summer in accordance to the norm EN 15251. A feasible way for this optimization was identified in the installation of an earth-to-air heat exchanger. Its contribution is rather limited during winter, if it is coupled to a high efficient heat recovery unit, while it becomes a solution of primary importance to reduce, or even neutralize, the energy required to reach summer comfort.
9783901425134
Net zero-energy building; earth-to-air heat exchanger; thermal comfort; monitoring
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/574382
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