Indoor Climate

Daylight factors

Indoor climate has a great influence on the experience of the healing spatial elements of the health centre, since the occupants would often be sensitive to the pshysical surroundings. Thus, the indoor climatic conditions has been simulated through the use of a dynamic nummerical simulation tool, BSim, which has helped optimizing the final design.

All rooms of both the therapy building as well as the dwellings has been investigated in terms of daylight factor. The appointed critical rooms, the dwelling towards southeast as well as the kitchen and common area towards souhteast, has been optimised for their purpose of use, with regards to views and functionalities of the windows. The visual comfort is one of the comfort aspects that is easy to physically see and experience as it deals with the amount of daylight. The final window design, gives one the oportunity to both experience the great views towards the differentiated landscape, as well as allowing for natural ventilation in the top window.

INDOOR CLIMATE

See appendix 13

Acoustics are considered with regards to the materials choice and the placement of those as well as the interior room height, utilising the materials properties to strengthning the spatial atmosphere, while ensuring comfortable interior complimenting the spatial functionality. The chosen materials for the design is generally natural with surfaces for the roof and walls such as clay painted

Reverberation Time 125 herz 250 herz 500 herz 1 kHz 2 kHz 4 kHz BR18 for living areas ≤0,9 s ≤0,6 s ≤0,6 s ≤ 0,6 s ≤ 0,6 s ≤ 0,6 s Dwelling 0,90 s 1,16 s 1,62 s 2,59 s 2,79 s 3,84 s Kitchen /common 0,94 s 0,72 s 0,63 s 0,50 s 0,41s 0,46 s

INDOOR CLIMATE

Thermal and atmospheric comfort

One’s thermal comfortable conditions are often very individual, although this parameter has also been considered and investigated through the design of the windows and materials choice, since it has a high impact on one’s healing process. BSim was part of the optimization of the thermal comfort conditions making sure that the rooms were not in risk of overheating especially during summer season. Since the construction has a lower thermal capacity due to the wooden structural build up, the kitchen and common area of the therapy building has been detailed with a chimney build up of resued brick, which has higher thermal capacity than the wooden elements. The chimney has a bench added as extension of it, allowing the occupant to enjoy the heat from the chimney during winter, whilst the brick wall and chimney during summer helps absorbing the solar and internal heatgains.

The health centre, both dwellings and therapy building, are designed with hybrid ventilation ensuring that the indoor air quality can be flexibly controlled and hereby improved. The mechanical ventilation is installed as a centralised CAV system for each of the building units - the dwellings and the therapy unit seperately, to minimize the pipework, installation costs, CO2 for the production of the system as well as ensuring an easy accessibility of the system for the maintenance of it. To make sure that the mechanical ventilation system can maintain the indoor air quality, it has been dimensioned for the most critical polluting situation of CO2 and smell (olf), which allows the system to adapt depending on the situation of use. The window design allows for user control of the indoor climate, giving the occupants the oportunity to adapt and adjust to the conditions that suits one the best, while it also allows for reduction of the energy demand for ventilation and hereby is a more sustainable choice of ventilation. Generally materials are natural or reused in order to ensure good air quality with the lowest amount of toxic emissions. To ensure a coherent expression, the buildings are detailed with the same type of materials but used differently depending on the functional purpose of use.

Aims Hours above 26 Hours above 27 Hours above 28 Dwelling Kitchen and common area - Max 100

Max 100 Max 25 Max 25 0

Summer - Operative mean temp. 23-26 oC CO2 [ppm] Required air change rate Max 660 Min. 0,36 h-1

22-26 oC Max 660 Min. 0,36 h-1 Periodic: 1,08 h-1

Results Hours above 26 Hours above 27 Dwelling Kitchen and common area 159 55

84 19

Summer - Operative mean temp. 21,4 CO2 mean [ppm] Air change rate 436,4 0,36 - 2,07 h-1

21,2 356,1 1,08 - 9,03 h-1