Elaheh Jalilzadehazhari
Postdoctoral FellowResearch
Earlier studies in the context of windows and blinds selection have mostly tried to increase the awareness regarding various effects of windows and blinds selection on subjective well-being, including their effect on visual comfort, thermal comfort, energy consumption and life cycle cost. However, the main problem is the potential conflicts between visual comfort, thermal comfort, energy consumption and life cycle cost. Increased awareness about the contradictory effect of windows and blinds selection on subjective well-being on one hand and lack of a feasible method in managing the conflicts on the other hand may bind individuals, as decision-makers, in a situation where they follow the immediate economic benefits rather than the long-term visual and thermal benefits.
To solve the mentioned problem, this study analysed first the degree of the conflicts between average daylight illuminance and total energy consumption in Sweden. This decision was made due to large variation in solar elevation angle and solar intensity between summer and winter in Sweden, which has significant effects on daylight illuminance and total energy consumption. Analysing the conflicts was accomplished by developing two multivariate linear regression models for calculating average daylight illuminance and total energy consumption. Comparison and analysis of the multivariate linear regression models showed the existence of a high degree of conflicts, which makes window and blind selection a rather complex multidimensional problem.
Specifying the degree of the conflicts formed a hypothesis as: "A multi criteria decision-making method increases the controllability and manages the conflicts in selecting windows and blinds". The developed hypothesis was later tested by employing analytical hierarchy process, as widely used multi criteria decision-making method. The analytical hierarchy process prioritizes decision-maker' preferences and introduces a desired trade-off solution. The results of employing analytical hierarchy process showed the capability of it in managing the conflicts among visual comfort, thermal comfort, energy consumption and life cycle cost. Finally, the application of the analytical hierarchy process was expanded by integrating it with nondominated sorting genetic algorithm-II, as an optimization algorithm. Through this integration, optimization algorithm combines windows' and blinds' design variables and analyses a large number of solutions, while analytical hierarchy process ranks the solutions based on decision-makers' preferences and introduces a desired trade-off solution. The integration between analytical hierarchy process and the nondominated sorting genetic algorithm-II was presented later as a conceptual framework. The developed conceptual framework can be used for selecting windows and blinds in both residential and commercial buildings.
In selecting windows and blinds, the conceptual framework is a novel solution to the lack of a feasible method for increasing the controllability for decision-makers and obtaining a desired trade-off solution.
My research groups and projects
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Forestry and Wood In the Forestry and Wood field of research we are engaged in the entire chain, from forest to finished product, and with the development of new wood products for construction and…
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Project: LC Districts – towards low carbon city districts through the improvement of regional policies The overall objective of the LC Districts research project is to improve regional development…
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Project: BioFrame – an analytical framework to promote the development of forest bioenergy A national forest strategy affects – and is affected by – what is happening in the forest as well as…
Publications
Article in journal (Refereed)
- Vadiee, A., Dodoo, A., Jalilzadehazhari, E. (2020). Heat Supply Comparison in a Single-Family House with Radiator and Floor Heating Systems. Buildings. 10. 1-22.
- Jalilzadehazhari, E., Pardalis, G., Vadiee, A. (2020). Profitability of various energy supply systems in light of their different energy prices and climate conditions. Buildings. 10. 1-17.
- Jalilzadehazhari, E., Vadiee, A., Johansson, J. (2020). Subsidies Required For Installing Renewable Energy Supply Systems Considering Variations In Future Climate Conditions. Journal of Building Engineering.
- Jalilzadehazhari, E., Johansson, J. (2019). Material properties of wooden surfaces used in interiors and sensory stimulation. Wood Material Science & Engineering. 14. 192-200.
- Jalilzadehazhari, E., Vadiee, A., Johansson, P. (2019). Achieving a trade‐off construction solution using BIM, an optimization algorithm, and a multi‐criteria decision‐making method. Buildings. 9. 1-14.
- Jalilzadehazhari, E., Johansson, J., Mahapatra, K. (2019). Applying a decision-making framework for resolving conflicts when selecting windows and blinds. Architectural Engineering and Design Management. 15. 382-401.
- Jalilzadehazhari, E., Johansson, P., Johansson, J., Mahapatra, K. (2019). Developing a decision-making framework for resolving conflicts when selecting windows and blinds. Architectural Engineering and Design Management. 15. 357-381.
- Jalilzadehazhari, E., Johansson, P., Johansson, J., Mahapatra, K. (2017). Application of analytical hierarchy process for selecting an interior window blind. Architectural Engineering and Design Management. 13. 308-324.
- Jalilzadehazhari, E., Mahapatra, K. (2017). Multivariate linear regression model for estimating average daylight illuminance. Advanced Science Letters. 23. 6163-6167.
Conference paper (Refereed)
- Jalilzadehazhari, E., Mahapatra, K. (2019). The most cost-effective energy solution in renovating a multi-family house. Cold Climate HVAC 2018, The 9th International Cold Climate Conference Sustainable new and renovated buildings in cold climates Kiruna – Sweden 12-15, March 2018.
- Jalilzadehazhari, E., Johansson, J., Mahapatra, K. (2019). Comparing the profitability of various renovation packages in Swedish residential building sector : case study. Sustainable built environment conference (SBE 2019). 6-7 August, Tokyo, Japan.
- Jalilzadehazhari, E., Johansson, P., Johansson, J. (2019). Determinants of users’ acceptance of a computer-based system. 36th CIB W78 2019 Conference ICT in Design, Construction and Management in Architecture, Engineering, Construction and Operations (AECO), 18-20 September, 2019.
- Jalilzadehazhari, E., Pardalis, G., Vadiee, A., Mahapatra, K. (2019). Profitability of various energy supply systems when renovating a single-family house in Sweden : case study. International Conference on Applied Energy (ICAE 2019). August 12-15, Västerås, Sweden.
- Pardalis, G., Mahapatra, K., Mainali, B., Jalilzadehazhari, E. (2019). Renovation of detached houses in Sweden : Can one-stop-shop provide a solution?. Presented at: International Conference on Sustainability in Energy and Buildings SEB-19.
- Jalilzadehazhari, E., Vadiee, A., Johansson, P. (2019). The profitability of various energy supply systems considering variations in future climate conditions. International Conference on Applied Energy (ICAE 2019). August 12-15, Västerås, Sweden.
- Jalilzadehazhari, E., Pardalis, G., Johansson, J., Johansson, P. (2019). Application of multi-objective optimization for resolving conflicts when selecting windows. The 9th International Conference on Sustainable Development in the Building and Environment(SuDBE2019)& the International Forum of Green and Healthy Buildings..
- Jalilzadehazhari, E., Johansson, P. (2018). Integrating BIM, optimization and a multi-criteria decision-making method in building design process. Advances in Informatics and Computing in Civil and Construction Engineering : Proceedings of the 35th CIB W78 2018 Conference: IT in Design, Construction, and Management. 359-369.
- Jalilzadehazhari, E., Mahapatra, K. (2017). Multivariate linear regression model for estimating total energy consumption. The 3rd Asia conference of International Building Performance Simulation Association - ASim2016, Nov. 27-29, 2016, South Korea.
Conference paper (Other academic)
- Jalilzadehazhari, E., Johansson, J. (2018). Material properties of wooden surfaces used in interiors and sensory stimulation. Presented at Forum Wood Building Nordic 2018, 27-28 september.
- Jalilzadehazhari, E., Mahapatra, K. (2016). A framework for selecting a suitable window design. Presented at BuildSim-Nordic conference, Trondheim, Norway, September 26-27, 2016.
Other (Other academic)
Doctoral thesis, comprehensive summary (Other academic)
- Jalilzadehazhari, E. (2019). A decision-making framework for enhancing client well-being : When designing windows and blinds. Doctoral Thesis. Växjö, Linnaeus University Press. 86.
Licentiate thesis, comprehensive summary (Other academic)
- Jalilzadehazhari, E. (2017). Windows and blinds selection for enhancing subjective well-being. Licentiate Thesis. Växjö, Linnaeus University Press. 65.