BS Rome – IBPSA Paper (2019)

Presentation of GEOFIT at BS ROME – 16th IBPSA International COnference and Exhibition (2019)

Title: Environmental sustainability and Energy Efficiency in Historical Buildings: GeoFit Project Implementation in the Case Study of a medieval fortress in Perugia

Language: English

Authors: Jessica Romanelli (*1), Matteo Di Grazia(*1), Cristina Piselli (*1,2), Anna Laura Pisello (*1,2), Franco Cotana (*1,2)

*1: CIRIAF – Interuniversity Research Centre, University of Perugia, Italy
*2: Department of Engineering, University of Perugia, Italy

Abstract: Italian cities are mainly constituted by buildings constructed until the mid-20th century by pre-industrial construction techniques. A HVAC system for the energy retrofit of historical buildings is evaluated when applied in the case study of Sant’Apollinare. It consists of a ground source heat pump a water tank for thermal energy storage connected to a low-temperature radiant system and air handling unit. The building thermal-energy behavior, typically influenced by thermal inertia in historical buildings, and the novel HVAC system performance interactions are comparatively assessed together with more traditional scenarios. Energy demand decreases by about one third compared to the pre-retrofit situation.

Thermally driven heat pump development and testing

By CNR – ITAE

Within GEOFIT project, a novel heat pump will be developed, able to efficiently exploit geothermal energy to provide heat under several climates and conditions. To this aim, a hybrid configuration for a reversible heat pump is being developed: it consists in the coupling of a gas-driven adsorption cycle with a vapour compression cycle. In this way, the temperature lift on the vapour compression cycle that is commonly employed is reduced and the energy consumption of the component is lower. The proposed solution, that is modular and based on commercial components, is suitable for both new installations and retrofitting applications, allowing a high flexibility.

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