Projects per year
Thermal comfort research has been traditionally based on cross-sectional studies and spatial aggregation of individual surveys at building level. This research design is susceptible to compositional effects and may lead to error in identifying predictors to thermal comfort indices, in particular in relation to adaptive mechanisms. A relationship between comfort and different predictors can be true at an individual level but not evident at the building level. In addition, cross-sectional studies overlook temporal changes in individual thermal perception due to contextual factors. To address these limitations, this study applied a longitudinal research design over 8 to 21 months in eight buildings located in six countries around the world. The dataset comprises of 5,567 individual thermal comfort surveys from 258 participants. The analysis aggregated survey responses at participant level and clustered participants according to their thermal sensation votes (TSV). Four TSV clusters were introduced, representing four different thermal sensation traits. Further analysis reviewed the probability of cluster membership in relation to demographic characteristics and behavioural adaptation. Finally, the analysis at individual level enabled the introduction of a new metric, the thermal zone (Zt), which in this study ranges from 21.5 °C to 26.6 °C. The thermal sensation traits and person-centric thermal zone (Zt) are a first step into the development of new metrics incorporating individual perceived comfort into dynamic building controls for adaptive buildings.
- Adaptive thermal comfort
- Individual comfort profiles
- Person-centric thermal zones
- Adaptive building strategies
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- 5 Finished
Subtask B2: Provide design guidelines on how to use adaptive comfort for lowering energy use in buildings including the usage of personal comfort systems, IEA EBC Annex 69: “Strategy and practice of adaptive thermal comfort in low energy buildings”
Hellwig, R. T., Despoina, T., Schweiker, M., Choi, J., Lee, J. M. C., Mora, R., Rawal, R., Wang, Z. & Al-Atrash, F.
01/01/2015 → 31/12/2019
Subtask C: Case studies - Practical learnings from exemplary adaptive buildings, Case study buildings in Amman, Jordan
01/01/2015 → 31/12/2019
01/08/1995 → 30/09/2018
Evaluating assumptions of scales for subjective assessment of thermal environments: Do laypersons perceive them the way, we researchers believe?Schweiker, M., André, M., Al-Atrash, F., Al-Khatri, H., Alprianti, R. R., Alsaad, H., Amin, R., Ampatzi, E., Arsano, A. Y., Azadeh, M., Azar, E., Bahareh, B., Batagarawa, A., Becker, S., Buonocore, C., Cao, B., Choi, J-H., Chun, C., Daanen, H., Damiati, S. A. & 73 others, , 18 Feb 2020, In: Energy and Buildings. 211, 109761.
Research output: Contribution to journal › Journal article › Research › peer-reviewOpen AccessFile
Guidelines to bridge the gap between adaptive thermal comfort theory and building design and operation practiceHellwig, R. T., Teli, D., Schweiker, M., Choi, J-H., Lee, J. M. C., Mora, R., Rawal, R., Wang, Z. & Al-Atrash, F., 6 May 2020, 11th Windsor Conference - Resilient Comfort, Proceedings. Roaf, S., Nicol, F. & Finlayson, W. (eds.). Ecohouse Initiative Ltd., p. 529-545 17 p. 068
Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-reviewOpen AccessFile
Hellwig, R. T., Teli, D., Schweiker, M., Choi, J-H., Lee, J. M. C., Mora, R., Rawal, R., Wang, Z. & Al-Atrash, F., 15 Dec 2019, In: Energy and Buildings. 205, 13 p., 109476.
Research output: Contribution to journal › Journal article › Research › peer-review