10.25673/122869">


Proceedings of International Conference on Applied Innovation in IT
2025/12/22, Volume 13, Issue 5, pp.345-350

Multi-Objective Optimization of Design nZEBs in Uzbekistan


Sayyora Asanova, Azamat Shukurov, Akbar Halimov and Jasurjon Akhatov


Abstract: The growth in energy demand from the residential sector in Uzbekistan points to the urgency to adopt nearly zero-energy building (nZEB) strategies that can be tailored to domestic climate and economic conditions. The present building stock, represented by weak thermal performance, results in excessive energy consumption for heating and cooling and excessive CO₂ emissions. To address this, the study examines multi-objective optimization methods for residential building retrofitting via integration of advanced insulation systems and renewable energy technology. The calculation uses heating and cooling degree days (HDD/CDD), which is in compliance with national standards ShNK 2.08.01-24 (Thermal Protection of Buildings) and KMK 2.01.04-18 (Building Climatology), to determine energy loads, taking techno-economic factors into consideration in terms of cost-effectiveness. Simulations were conducted for a typical three-room house, varying insulation thickness (0–50 mm), solar collectors, and photovoltaic panels. Results show that particular annual energy requirements decreased from 53.9 to 34.6 kWh/(m²·yr), and CO₂ emission decreased from 45.44 to 18.84 kg/(m²·yr) with improved insulation. Additionally, payback periods decreased from 8.94 to 8.45 years, confirming economic feasibility. The findings suggest that enhanced retrofitting coupled with solar technologies can greatly reduce operational energy usage and environmental impact, offering a sustainable solution for residential development in Uzbekistan.

Keywords: NZEB, Degree Days, Optimization, Energy Demand.

DOI: 10.25673/122869

Download: PDF

References:

  1. A. D. Amato, M. Ruth, P. Kirshen, and J. Horwitz, “Regional energy demand responses to climate change: Methodology and application to the Commonwealth of Massachusetts,” Climatic Change, vol. 71, no. 1–2, pp. 175–201, Jul. 2005, doi: 10.1007/s10584-005-5931-2.
  2. C. Cartalis, A. Synodinou, M. Proedrou, A. Tsangrassoulis, and M. Santamouris, “Modifications in energy demand in urban areas as a result of climate changes: An assessment for the southeast Mediterranean region,” Energy Conversion and Management, vol. 42, no. 14, pp. 1647–1656, Sep. 2001, doi: 10.1016/S0196-8904(00)00156-4.
  3. “ShNK 2.08.01-24 Thermal Protection of Buildings,” Ministry of Construction of the Republic of Uzbekistan, 2024.
  4. M. Christenson, H. Manz, and D. Gyalistras, “Climate warming impact on degree-days and building energy demand in Switzerland,” Energy Conversion and Management, vol. 47, no. 6, pp. 671–686, Apr. 2006, doi: 10.1016/j.enconman.2005.06.009.
  5. B. Aebischer, M. Jakob, and G. Catenazzi, “Impact of climate change on thermal comfort, heating and cooling energy demand in Europe,” [Online]. Available: https://www.researchgate.net/publication/302998353_Impact_of_climate_change_on_thermal_comfort_heating_and_cooling_energy_demand_in_Europe.
  6. A. Matzarakis and F. Thomsen, “Heating and cooling degree days as an indicator of climate change in Freiburg,” 2008. [Online]. Available: www.worldwind.arc.nasa.gov.
  7. F. Javier, G. Pinilla, and J. Gallego, “Using CORINE land cover to map population density,” 2001. [Online]. Available: https://www.researchgate.net/publication/228959768.
  8. G. A. Eskeland and T. K. Mideksa, “Climate change and residential electricity demand in Europe,” SSRN Electronic Journal, 2009, doi: 10.2139/ssrn.1338835.
  9. “KMK-2.01.04-18 Building Climatology,” Ministry of Construction of the Republic of Uzbekistan, 2018.
  10. B. M. Botirov, A. S. Halimov, N. S. Kholmirzayev, I. A. Yuldoshev, S. Q. Shoguchkarov, and D. M. Pulatova, “Multi-criteria optimization of technical and economic indicators of a trench-type solar-fuel greenhouse,” Applied Solar Energy, vol. 60, no. 6, pp. 800–812, Dec. 2024, doi: 10.3103/S0003701X25600675.
  11. M. Olonscheck, A. Holsten, and J. P. Kropp, “Heating and cooling energy demand and related emissions of the German residential building stock under climate change,” Energy Policy, vol. 39, no. 9, pp. 4795–4806, Sep. 2011, doi: 10.1016/j.enpol.2011.06.041.

    HOME

       - Conference
       - Journal
       - Paper Submission to Conference
       - Paper Submission to Journal
       - Fee Payment
       - For Authors
       - For Reviewers
       - Important Dates
       - Conference Committee
       - Editorial Board
       - Reviewers
       - Last Proceeding


    PROCEEDINGS

       - Volume 13, Issue 5 (ICAIIT 2025)
       - Volume 13, Issue 4 (ICAIIT 2025)
       - Volume 13, Issue 3 (ICAIIT 2025)
       - Volume 13, Issue 2 (ICAIIT 2025)
       - Volume 13, Issue 1 (ICAIIT 2025)
       - Volume 12, Issue 2 (ICAIIT 2024)
       - Volume 12, Issue 1 (ICAIIT 2024)
       - Volume 11, Issue 2 (ICAIIT 2023)
       - Volume 11, Issue 1 (ICAIIT 2023)
       - Volume 10, Issue 1 (ICAIIT 2022)
       - Volume 9, Issue 1 (ICAIIT 2021)
       - Volume 8, Issue 1 (ICAIIT 2020)
       - Volume 7, Issue 1 (ICAIIT 2019)
       - Volume 7, Issue 2 (ICAIIT 2019)
       - Volume 6, Issue 1 (ICAIIT 2018)
       - Volume 5, Issue 1 (ICAIIT 2017)
       - Volume 4, Issue 1 (ICAIIT 2016)
       - Volume 3, Issue 1 (ICAIIT 2015)
       - Volume 2, Issue 1 (ICAIIT 2014)
       - Volume 1, Issue 1 (ICAIIT 2013)


    LAST CONFERENCE

       ICAIIT 2026
         - Photos
         - Reports

    PAST CONFERENCES

    ETHICS IN PUBLICATIONS

    ACCOMODATION

    CONTACT US

 

        

         Proceedings of the International Conference on Applied Innovations in IT by Anhalt University of Applied Sciences is licensed under CC BY-SA 4.0


                                                   This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License


           ISSN 2199-8876
           Publisher: Edition Hochschule Anhalt
           Location: Anhalt University of Applied Sciences
           Email: leiterin.hsb@hs-anhalt.de
           Phone: +49 (0) 3496 67 5611
           Address: Building 01 - Red Building, Top floor, Room 425, Bernburger Str. 55, D-06366 Köthen, Germany

        site traffic counter

Creative Commons License
Except where otherwise noted, all works and proceedings on this site is licensed under Creative Commons Attribution-ShareAlike 4.0 International License.