martin-mosteiro
commented
7 years ago Lecture halls are assumed to be the same as the current SCHOOL archetype. Only MUSEUM and LAB archetypes were created based on the existing method. The former was partially based on the old PUBLIC archetype (which had been removed as part of issue #184 ), the latter is brand new. The following assumptions were made:
1. Schedules: As defined in the CEA documentation, schedule information was extracted from SIA 2024 for the following room definitions from SIA:
1.1. MUSEUM: 7.1 Vorstellungsraum
1.2. LAB: 9.3 Laborraum
Daily hot water use is not actually included in SIA 2024. Based on Jimeno's feedback, this profile was assumed to be the same as the occupancy profile.
2. Architecture properties: Following the CEA documentation, a variety of sources were used.
_2.1. typeshade: for all occupancy types, the type of shading was the same; therefore, the same type was assumed for the new uses
_2.2. winwall:
2.2.1. MUSEUM same as the old PUBLIC category
2.2.2. LAB: Most labs in the Hochschulquartier are part of university buildings and therefore share buildings with school and office functions and thus would share their architectural properties; LABs were given the same WWR as offices
_2.3. occm2p: taken from SIA 2024 for the aforementioned uses.
2.4. n50: Weber et al. (2014) – same for all uses except homes
_2.5. winop: assumed 0.5 for all uses except homes
_2.6. fcros: European committee of standardization (2014) – used 0 for “all other uses” as defined in the source
_2.7. type_roof, type_wall, typewin: assumed for CEA; for the new archetypes, the most common values were used (i.e., same as for schools and many others)
3. Indoor comfort: The CEA database is also based on SIA 2024: _3.1. Tcs_set, Ths_set, Velps: taken from SIA 2024 for the aforementioned uses _3.2. Tcssetback is not actually in SIA 2024. Assumed 28°C for all uses (as done in CEA database) _3.3. Thssetback is not actually in SIA 2024. Assumed 12°C for all uses (as done for most uses in CEA database)
4. Internal loads: According to the CEA documentation, a variety of sources were used. _4.1. Qs_Wp, X_ghp, Ea_Wm2, ElWm2: SIA 2024 for the aforementioned uses 4.2. Vw, Vww: CEA archetypes aren't actually based on SIA 2024. For the new archetypes, I looked at SIA 2024 uses with the same demands as the new uses and used the values in the CEA database for the existing uses, i.e.: 4.2.1. ‘MUSEUM’: used value for ‘RETAIL’ 4.2.2. ‘LAB’: used value for ‘INDUSTRY’ _4.3. EproWm2: BFE (2013) – due to lack of information, assumed the same value for ‘LAB’ as for ‘INDUSTRY’ and 0 for ‘MUSEUM’ _4.4. Ere_Wm2, EdWm2: not actually defined in SIA 2024 (at least not explicitly); assumed 0 for all new uses
5. HVAC: According to the CEA documentation, all values were assumed!
5.1. Ventilation: same for all except industry and homes; assumed LAB as INDUSTRIAL, MUSEUM as the rest
5.2. Controls, Domestic hot water: same for all except PARKING; assumed the same as the majority for the new uses for LABS; for MUSEUM, the old PUBLIC category was resuscitated
5.3. Cooling: same for all except homes and parking; assumed the same as the majority for the new uses
5.4. Heating: assumed the same for LAB as for INDUSTRY, for MUSEUM the old PUBLIC category was resuscitated
6. Thermal: According to the CEA documentation, some values were taken from Girardin (2012), others from a combination of ECA, Gebäudeparkmodell and SIA 380/1 (no precise calculation given). So the following were assumed:
6.1. Es, Hs: 0.9 was used for all uses except homes, parking and server rooms; 0.9 was assumed for the new uses as well
6.2. Thermal mass: the same values were assumed for all buildings, so the same was done for the new uses
_6.3. U_wall, U_roof, U_base, Uwin: values for construction year >2005 and renovation were the same from all uses (from GPM), thus the same was assumed; for older buildings, the following assumptions were made:
6.3.1. MUSEUM: the old PUBLIC category was resucitated
6.3.2. LAB: since according to SIA 380/1, laboratories are included in the occupancy type “Schools”, so the same thermal properties of SCHOOL were assumed
7. Embodied energy and emissions: According to CEA documentation, these values were taken from Thoma et al. (2014) except for services and excavation, which were taken from SIA 2032.
7.1. Excavation: assumed same values as for all other uses
7.2. Services: three groups were identified – homes, parking and everything else; assumed the same values as for “everything else”
7.3. All other values are taken from Thoma et al. (2014). Since a detailed calculation was not provided, the following assumptions were made:
7.3.1. MUSEUM: the old category PUBLIC was resuscitated
7.3.2. LAB: Most labs in the Hochschulquartier are part of university buildings and therefore share buildings with school and office functions – both of which have the same values for embodied energy and emissions! Thus LABs were given the same embodied values as OFFICE and SCHOOL uses
The Hochschulquartier has quite a few occupancy types that currently cannot be modeled on the CEA, including: