A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Passive control of indoor humidity with wooden materials
This thesis investigates if the moisture buffering effect of wooden materials can stabilize indoor humidity by using a case study of an administrative building. This work was done for the PUUSTA project (Welfare Innovations from Wood). The simulations have been carried out in IDA ICE. The HMWall model developed by EQUA was used to simulate the moisture buffering effect in structures. During the research, guidelines and advice from HMWall developer were used to run the simulation correctly. The entire simulation environment has been established and described. Three simulation cases were performed. These cases were chosen to find out if replacing walls with the new model (thereby adding the moisture buffering effect) has an impact on the results. It was concluded that the humidity flux through the structure during the summer is 4 times higher than the values in winter. It shows that the work of HMwall is correct and does not conflict with the theory. It was also noticed that the largest amplitude of humidity flux for January is observed at the internal wall with the largest area and is 5.4·10(-7) kg/s. In July, the greatest amplitude is observed at the external wall with the largest area and is 22.6·10(-7) kg/s. Occupants, lighting, or equipment activity had almost no impact on the increase or decrease in the humidity in the room at the scale of the simulation. This was observed both at the level of the working week and at the level of the working day. After a comparison of simulation cases, it can be concluded that according to the results, there is an impact of moisture buffering on humidity, but it is extremely small. Humidity peaks decreased by approximately 1% or less, which is almost imperceptible to humans.
Passive control of indoor humidity with wooden materials
This thesis investigates if the moisture buffering effect of wooden materials can stabilize indoor humidity by using a case study of an administrative building. This work was done for the PUUSTA project (Welfare Innovations from Wood). The simulations have been carried out in IDA ICE. The HMWall model developed by EQUA was used to simulate the moisture buffering effect in structures. During the research, guidelines and advice from HMWall developer were used to run the simulation correctly. The entire simulation environment has been established and described. Three simulation cases were performed. These cases were chosen to find out if replacing walls with the new model (thereby adding the moisture buffering effect) has an impact on the results. It was concluded that the humidity flux through the structure during the summer is 4 times higher than the values in winter. It shows that the work of HMwall is correct and does not conflict with the theory. It was also noticed that the largest amplitude of humidity flux for January is observed at the internal wall with the largest area and is 5.4·10(-7) kg/s. In July, the greatest amplitude is observed at the external wall with the largest area and is 22.6·10(-7) kg/s. Occupants, lighting, or equipment activity had almost no impact on the increase or decrease in the humidity in the room at the scale of the simulation. This was observed both at the level of the working week and at the level of the working day. After a comparison of simulation cases, it can be concluded that according to the results, there is an impact of moisture buffering on humidity, but it is extremely small. Humidity peaks decreased by approximately 1% or less, which is almost imperceptible to humans.
Passive control of indoor humidity with wooden materials
Vinogradova, Nataliia (author)
2023-01-01
URN:NBN:fi:amk-202305047780
Theses
Electronic Resource
English
DDC:
690
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