Abstract
The hollow-core slabs can be used actively as a cold and heat storage by conducting supply air through the cores to the space. TERMA project (2004-2006) developed several concepts to integrate thermal mass of hollow-core slabs and air-conditioning systems to meet the requirements of energy efficiency and good indoor conditions. The development was done by using advanced modelling and simulation methods. Thermal behaviour of the hollow-core slab integrated to ventilation was also measured in laboratory. Simulation models were validated against these measurements. The basic strategy for thermal mass utilisation during cooling season is cooling down the slab during unoccupied time by night ventilation to decrease the day time cooling need in the room. By active use of thermal mass of hollow-core slabs the indoor temperature can be reduced at least 2ºC. The active use of thermal mass showed 4-10% savings in heating energy, 46-47% savings in cooling energy and 12-23% savings in fan energy compared to systems traditional systems with passive use of thermal mass.
| Original language | English |
|---|---|
| Title of host publication | Proceedings Clima 2007 WellBeing Indoors |
| Editors | Olli Seppänen, Jorma Säteri |
| Place of Publication | Helsinki |
| Number of pages | 9 |
| ISBN (Electronic) | 978-952-99898-3-6 |
| Publication status | Published - 2007 |
| MoE publication type | A4 Article in a conference publication |
| Event | 9th Rehva World Congress, Clima 2007 - WellBeing Indoors - Helsinki, Finland Duration: 10 Jun 2007 → 14 Jun 2007 Conference number: 9 |
Conference
| Conference | 9th Rehva World Congress, Clima 2007 - WellBeing Indoors |
|---|---|
| Abbreviated title | CLIMA 2007 |
| Country/Territory | Finland |
| City | Helsinki |
| Period | 10/06/07 → 14/06/07 |
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