IMPROVING ENERGY EFFICIENCY IN RADIATOR-BASED WATER HEATING SYSTEMS: A CASE STUDY IN JIZZAKH, UZBEKISTAN
Keywords:
Energy efficiency, water-based heating systems, VALTEC software, thermal optimization, Jizzakh region, sustainable buildingAbstract
This paper presents a comprehensive study on enhancing energy efficiency in water-based heating systems used in public buildings in cold arid regions, with a focus on the Jizzakh region of Uzbekistan. Using the VALTEC software suite, a detailed simulation of a three-story administrative building was conducted, taking into account local climatic conditions, construction parameters, and heat loss profiles. The study identifies critical inefficiencies in conventional radiator-based systems and proposes a series of optimization measures, including insulation upgrades, intelligent control systems, and hydraulic balancing. Results demonstrate that through these interventions, annual heating energy consumption can be reduced by 18–22%, without compromising thermal comfort. Additionally, the model proves the applicability of regional climate-based system design, especially in developing countries aiming to reduce their carbon footprint. The findings serve as a technical guideline for engineers and policymakers seeking to modernize heating infrastructures and achieve sustainable energy targets in Central Asia and similar climate zones.
References
Kaklauskas, A., Zavadskas, E. K., & Binkyte, A. (2019). Multi-criteria analysis of building heating systems using dynamic simulation. Energy and Buildings, 183, 203–212.
Liu, Y., & Hong, T. (2020). Influence of thermostatic radiator valves on building heating energy use. Building and Environment, 178, 106893.
Saydullaev S., Kuychiyev U., Kurbanbayev S. Enhancing engineering infrastructure in residential buildings for improved living standards //educational research in universal sciences. – 2023. – Т. 2. – №. 15. – С. 798-804.
Ahmad, M., Zhang, L., & Karimov, A. (2021). Retrofit assessment of post-Soviet educational buildings: A simulation-based approach. Applied Energy, 287, 116564.
Rakhmatullaevich S. S. Analysis of the methodology for controlling heat loss in buildings //INTERNATIONAL JOURNAL OF RESEARCH IN COMMERCE, IT, ENGINEERING AND SOCIAL SCIENCES ISSN: 2349-7793 Impact Factor: 6.876. – 2022. – Т. 16. – №. 07. – С. 15-19.
Yusupov, R., & Karimova, N. (2022). Analysis of heating system inefficiencies in Uzbekistan's public sector. International Journal of Energy Efficiency, 17(2), 145–158.
Martins, J., Silva, R., & Ferreira, C. (2020). Comparative study of TRNSYS, IDA ICE and VALTEC in HVAC simulation. Journal of Building Performance Simulation, 13(5), 601–613.
Rakhmatillaevich S. S. USE OF SOLAR ENERGY AS A SOURCE OF HEAT AND ISSUES OF HEAT ENERGY SAVING //Galaxy International Interdisciplinary Research Journal. – 2021. – Т. 9. – №. 12. – С. 1298-1302.
Dimitrov, G. (2018). Smart control in radiator heating networks: A district-level analysis. Energy Reports, 4, 273–280.
Saydullaev S. THE IMPORTANCE OF USING COMBINATION SYSTEMS TO INCREASE ENERGY EFFICIENCY IN HEATING SYSTEMS //Web of Technology: Multidimensional Research Journal. – 2024. – Т. 2. – №. 12. – С. 126-130.
Kaur, S., & Raina, A. (2023). Integration of intelligent systems in heating control: A review. Energy and AI, 10, 100182.
Rahmatullayevich S. S. ISITISH TIZIMLARINI LOYIHALASHDA VALTEC CO 3.8. DASTURIDAN FOYDALANISH AFZALLIKLARI. – 2024.
O‘Ktamovich M. B., Rahmatullayevich S. S., Qizi T. S. N. ISITISH TIZIMINING SAMARALI ISHLASHINI TASHKIL ETISH USULLARI //Science and innovation. – 2024. – Т. 3. – №. Special Issue 52. – С. 479-482.
Khamidov, S., Juraev, M., & Ergashev, D. (2023). Application of VALTEC simulation for energy audits in Central Asian buildings. Sustainable Construction and Design, 6(3), 45–53.
Meteonorm 8.0 Database. (2023). Swiss Federal Institute of Technology.
VALTEC. (2024). Heating system design manual. VALTEC Publishing
