Author:
Sukhodub I.,Shklyar V.,Dubrovska V.,Yatsenko O.,Serdechnyi P.
Abstract
This article presents an analysis of the energy efficiency of the heating system of a single-family residential building with the integration of a heat pump (HP) using climate data for Kyiv city. Specialized software complexes for calculation (GeoT*SOL), dynamic energy modeling (DesignBuilder/EnergyPlus), and techno-economic justification of HP systems implementation (RETScreen) were used for this purpose. The analysis was conducted for two types of HPs: air-to-water (air-based) and ground-source (ground-based), considering various temperature regimes of the indoor heating system. Based on the modeling results, it was determined that for an air-to-water HP with a nominal capacity of 7 kW, the average seasonal efficiency rating could be approximately 3.6 for the HP itself and 2.7 for the overall system. For a ground-source HP with a nominal capacity of 6 kW, the average seasonal efficiency rating is 4.7 for the HP itself and 3.75 for the overall system. The total electricity consumption varies within the range of 4800–5700 kWh for air-based HP and 3200–4300 kWh for ground-based HP. Depending on the HP capacity, the share of heating energy coverage ranges from 85-98% for ground-based HP and 79-98% for air-based HP. The simple payback period of the HP-based heating system compared to electric convectors is 15.2–17.0 years.
Publisher
National University of Life and Environmental Sciences of Ukraine
Reference13 articles.
1. European Parliament and Council Directive 2010/31/EU of 19 May 2010 on the energy performance of buildings. Retrieved from: https://zakon.rada.gov.ua/laws/show/984_011-10#Text
2. On Energy Efficiency of Buildings: Law of Ukraine dated 22.06.2017 No. 2118-VIII. Holos Ukrainy. 2017. July 22. (No. 134). Retrieved from: https://zakon.rada.gov.ua/laws/show/z0825-18#n16
3. State Building Codes V.2.6–31:2021. Thermal insulation and energy efficiency of buildings. Replaces State Building Codes V.2.6–31:2016; effective from 2022-09-01. Official ed. Kyiv: State Enterprise "Ukrarhbudinform", 2021. 23 p.
4. Basok, B.I., Nedbaylo, O.M., Tkachenko, M.V., Bozhko, I.K., Lysenko, O.M., & Lunina, A.O. (2015). Modernizatsiia systemy opalennia budivli z vykorystanniam teplovoho nasosa typu "povitria-ridyna" [Modernization of building heating system using air-liquid heat pump]. Promyshlennaya Teplotekhnika, 37(5), 68-74. [In Ukrainian]. https://doi.org/10.31472/ihe.5.2015.08
5. Gaur, A.S., Fitiwi, D.Z., & Curtis, J. (2021). Heat pumps and our low-carbon future: A comprehensive review. Energy Research & Social Science, 71, 101764. https://doi.org/10.1016/j.erss.2020.101764