THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

External Links

Viktória Vámos

,

Miklós Horváth

RESIDENTIAL DOMESTIC HOT WATER CONSUMPTION ANALYSIS FOR MULTIFAMILY BUILDINGS SUPPLIED BY DISTRICT HEATING

ABSTRACT
The exact knowledge of DHW and heat consumption is necessary in the process of heat cost allocation and planning. In Hungary, heat cost allocation is based on summer months’ heat demand. This method doesn’t lead to an accurate result due to the fact that the DHW demand varies throughout the year. There are several studies dealing with consumption data analisys, but only some of them have exact estimations on DHW usage patterns the Central-Eastern European countries. In this paper the DHW consumption was analysed in 115 “commi block” buildings, which are common in Central-Eastern Europe and Russia and are usually connected to the district heating network. The examined buildings are located in Budapest, Hungary. The installation of the monitoring system has started in December 2012. The consumption data is collected since March 2014. The DHW usage was calculated in different cases for every month: per heated area, per heated volume and per flat. Average daily and annual data was also determined, the share of yearly DHW consumption over the months was calculated. The average daily and annual DHW consumption are 126 l/flat and 892 l/m2, respectively. The average net heat consumption is 28.2 kWhm-2a-1. Different DHW demand influencing factors were examined: the outdoor temperature and the residents’ travelling habit is clearly influencing the DHW usage but no connection was found between the DHW consumption and economic indicators. The DHW consumption is approximately 30% higher in the winter than in the summer.
KEYWORDS
DHW, district heating, water consumption, prefabricated building
PAPER SUBMITTED: 2020-05-05
PAPER REVISED: 2020-12-21
PAPER ACCEPTED: 2020-12-29
PUBLISHED ONLINE: 2021-06-05
DOI REFERENCE: https://doi.org/10.2298/TSCI200505190V
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2022, VOLUME 26, ISSUE Issue 2, PAGES [1267 - 1276]
REFERENCES
  1. Terés-Zubiaga, J., et al., Effects Of Individual Metering And Charging Of Heating And Domestic Hot Water On Energy Consumption Of Buildings In Temperate Climates, Energy Convers. Manag., 171 (2018), pp. 491-506
  2. Pang, Z., O'Neill, Z., Uncertainty Quantification And Sensitivity Analysis Of The Domestic Hot Water Usage In Hotels, Appl. Energy, 232 (2018), October, pp. 424-442
  3. Cholewa, T., et al., On The Possibilities To Increase Energy Efficiency Of Domestic Hot Water Preparation Systems In Existing Buildings - Long Term Field Research, J. Clean. Prod., 217 (2019), pp. 194-203
  4. Kaiser, A., et al., Monthly Domestic Hot Water Profiles For Energy Calculation In Finnish Apartment Buildings, Energy Build., 97 (2015), pp. 77-85
  5. Evarts, J.C., Swan, L.G., Domestic Hot Water Consumption Estimates For Solar Thermal System Sizing, Energy Build., 58 (2013), pp. 58-65
  6. George, D., et al., High Resolution Measured Domestic Hot Water Consumption Of Canadian Homes, Energy Build., 109 (2015), pp. 304-315
  7. Aki, H., et al., Development Of A Domestic Hot Water Demand Prediction Model Based On A Bottom-Up Approach For Residential Energy Management Systems, Appl. Therm. Eng., 108 (2016), pp. 697-708
  8. Fischer, D., et al., A Stochastic Bottom-Up Model For Space Heating And Domestic Hot Water Load Profiles For German Households, Energy Build., 124 (2016), pp. 120-128
  9. Ferrantelli, A., et al., Analytical Modelling And Prediction Formulas For Domestic Hot Water Consumption In Residential Finnish Apartments, Energy Build., 143 (2017), pp. 53-60
  10. Zhang, L., et al., Technical, Economic And Environmental Investigation Of Using District Heating To Prepare Domestic Hot Water In Chinese Multi-Storey Buildings, Energy, 116 (2016), pp. 281-292
  11. Carotenuto, A., et al., A Novel Solar-Geothermal District Heating, Cooling And Domestic Hot Water System: Dynamic Simulation And Energy-Economic Analysis, Energy, 141 (2017), pp. 2652-2669
  12. Siggelsten, S., Olander, S., Individual Metering And Charging Of Heat And Hot Water In Swedish Housing Cooperatives, Energy Policy, 61 (2013), pp. 874-880
  13. Yu, Z., et al., A Systematic Procedure To Study The Influence Of Occupant Behavior On Building Energy Consumption, Energy Build., 43 (2011), 6, pp. 1409-1417
  14. Chen, S., et al., Definition Of Occupant Behavior In Residential Buildings And Its Application To Behavior Analysis In Case Studies, Energy Build., 104 (2015), pp. 1-13
  15. Zhang, Y., et al., Rethinking The Role Of Occupant Behavior In Building Energy Performance: A Review, Energy Build., 172 (2018), pp. 279-294
  16. Lomet, A., et al., Statistical Modeling For Real Domestic Hot Water Consumption Forecasting, Energy Procedia, 70 (2015), pp. 379-387
  17. Ahmed, K., et al., Hourly Consumption Profiles Of Domestic Hot Water For Different Occupant Groups In Dwellings, Sol. Energy, 137 (2016), pp. 516-530
  18. Szánthó, Z., Némethi, B., Measurement Study on Demand of Domestic Hot Water in Residential Buildings, Proceedings, 2nd IASME/WSEAS International Conference on Energy & Environment, 2007, pp. 68-73
  19. Garbai, L., et al., Probability Theory Description Of Domestic Hot Water And Heating Demands, Energy Build., 75 (2014), pp. 483-492
  20. Fuentes, E., et al., A review of domestic hot water consumption profiles for application in systems and buildings energy performance analysis, Elsevier Ltd
  21. Marszal-Pomianowska, A., et al., Simple Methodology To Estimate The Mean Hourly And The Daily Profiles Of Domestic Hot Water Demand From Hourly Total Heating Readings, Energy Build., 184 (2019), pp. 53-64
  22. Kitzberger, T., et al., Comprehensive Analysis Of The Performance And Intrinsic Energy Losses Of Centralized Domestic Hot Water (DHW)Systems In Commercial (Educational)Buildings, Energy Build., 195 (2019), pp. 126-138
  23. Horváth, M., Adott felületre érkező globálsugárzás számítása, rendszerszintű hasznosítása épületekben, Ph. D. thesis, Budapesti Műszaki és Gazdaságtudományi Egyetem, 2016
  24. de Santiago, J., et al., The Generation Of Domestic Hot Water Load Profiles In Swiss Residential Buildings Through Statistical Predictions, Energy Build., 141 (2017), pp. 341-348
  25. Csoknyai, T., et al., Building Stock Characteristics And Energy Performance Of Residential Buildings In Eastern-European Countries, Energy Build., 132 (2016), pp. 39-52
  26. Horváth, M., Calculation of Solar Yield on Tilted and Oriented Surfaces, Utilization in Buildings (in Hungarian), Ph. D. thesis, Budapest University of Technology and Economics, 2016
  27. ***, Hungarian census report 2011; Hungarian Central Statistical Office (in Hungarian), www.ksh.hu/nepszamlalas/tablak_lakasviszonyok
  28. Kljajić, M. V., Petrović, J.R., Applicability Assessment Of Central And Solar Hot Water Systems Integration In Serbia, Therm. Sci., 16 (2012), Suppl. 1, pp. S173-S188
  29. ***, Household income trends in Budapest; National Tax and Customs Administration (in Hungarian), ado.hu/ado/nav-dinamikusan-nonek-a-jovedelmek-a-fovarosban/
  30. ***, Travelling habits of Hungarian citizens; Hungarian Tourism Agency (in Hungarian), mtu.gov.hu/documents/prod/1087_magyar_lakossag_utazasai_2010_20110404.pdf
  31. ***, 7/2006. (V. 24) Decree about Determination of Energy Efficiency of Buildings (in Hungarian), net.jogtar.hu/jogszabaly?docid=a0600007.tnm
PDF VERSION [DOWNLOAD]
Residential domestic hot water consumption analysis for multifamily buildings supplied by district heating

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence