Construction of methods to improve operational efficiency of an intermittent heat supply system by determining conditions to employ a standby heating mode

Authors

DOI:

https://doi.org/10.15587/1729-4061.2018.148049

Keywords:

intermittent heat supply system, mode boost, standby mode, power reserve, heat accumulator

Abstract

In the course of this study we defined conditions for the rational utilization of intermittent heat supply for public buildings of various types: administrative and educational institutions, and other public buildings. Known results of theoretical and experimental research do not take into consideration the dynamics of cooling a building and the appropriateness of employing a standby heating mode. And this is very important for a model of control over a heat supply system. We modeled mathematically a change in temperature indoors for various types of buildings under variable climatic parameters, of different levels of modernization and operating parameters of buildings, all of which defines the appropriateness of employing a standby regime. By cancelling a standby mode, it becomes possible to achieve an additional energy saving effect.

This paper shows the impact of enclosing structures of buildings on the dynamics of heating and cooling premises under variable climatic conditions for various operational modes. A mathematical model has been proposed for the basic operational modes when an intermittent heating supply is used. A structure of the mathematical model consists of two inertial links: low­inertial and highly­inertial. The first link reflects the process of heating air indoors. The second link reflects the process of heating a premise’s enclosing structures. Parameters of the proposed model are the coefficients of the transfer of an object along the channel “heating power – change in air temperature”, as well as the time constants for each of the links. The input variables for a given model are the ambient temperature and the premises’ utilization mode (switch time of alternating regimes). The output change is a room temperature in accordance with the current mode. We have defined boundary conditions for employing a standby mode of an intermittent heating system for various types of buildings at different degrees of thermal modernization.

The results of this research could be used when designing new public buildings and while modifying heating systems at existing administrative and educational institutions. In this case, it is necessary to take into consideration the degree of thermal modernization of a building, the type of heating systems, as well as modes of utilization

Author Biographies

Anton Mazurenko, Institute for Energy and Computer-Integrated Management Systems Odessa National Polytechnic University Shevchenka ave., 1, Odessa, Ukraine, 65044

Doctor of Technical Sciences, Professor, Director

 

Alla Denysova, Odessa National Polytechnic University Shevchenka ave., 1, Odessa, Ukraine, 65044

Doctor of Technical Sciences, Professor

Department of Thermal Powel Plants and Energy Saving Technologies

Gennadiy Balasanian, Odessa National Polytechnic University Shevchenka ave., 1, Odessa, Ukraine, 65044

Doctor of Technical Sciences, Professor

Department of Thermal Powel Plants and Energy Saving Technologies

Oleksandr Klymchuk, Odessa National Polytechnic University Shevchenka ave., 1, Odessa, Ukraine, 65044

PhD, Associate Professor

Department of Thermal Powel Plants and Energy Saving Technologies

Andrii Tsurkan, Odessa National Polytechnic University Shevchenka ave., 1, Odessa, Ukraine, 65044

Postgraduate student

Department of Thermal Powel Plants and Energy Saving Technologies

References

  1. Titiaiev, V. V. (2011). Obhruntuvannia stratehiyi rozvytku zhytlovo-komunalnykh pidpryiemstv. Kommunal'noe hozyaystvo gorodov, 98, 27–30.
  2. Maliarenko, V. A. (2007). Shliakhy pidvyshchennia efektyvnosti ko-munalnoi enerhetyky. Integrirovannye tekhnologii i energosberezhenie, 3, 3–13.
  3. Hesaraki, A., Holmberg, S. (2013). Energy performance of low temperature heating systems in five new-built Swedish dwellings: A case study using simulations and on-site measurements. Building and Environment, 64, 85–93. doi: https://doi.org/10.1016/j.buildenv.2013.02.009
  4. Panferov, V. I., Anisimova, E. Yu. (2008). Analiz vozmozhnosti ekonomii teplovoy energii pri preryvistom rezhime otopleniya. Vestnik YUUrGU. Seriya: Stroitel'stvo i arhitektura, 12, 30–37.
  5. Kucenko, A. S., Kovalenko, S. V., Tovazhnyanskiy, V. I. (2014). Analiz energoeffektivnosti preryvistogo rezhima otopleniya zdaniya. Polzunovskiy Vestnik, 1 (4), 247–253.
  6. Balasanyan, G. A., Klimchuk, A. A., Minyaylo, M. B. (2015). Modelirovanie rezhima preryvistogo otopleniya kombinirovannoy sistemy teplosnabzheniya s teplovym nasosom. Visnyk NTU «KhPI», 17 (1126), 97–102.
  7. Sebarchievici, C., Sarbu, I. (2015). Performance of an experimental ground-coupled heat pump system for heating, cooling and domestic hot-water operation. Renewable Energy, 76, 148–159. doi: https://doi.org/10.1016/j.renene.2014.11.020
  8. Schoenbauer, B., Bohac, D., Huelman, P., Olson, R., Hewett, M. (2012). Retrofitting Combined Space and Water Heating Systems: Laboratory Tests. Northern STAR U.S. Department of Energy “Energy Efficiency and Renewable Energy”, 51.
  9. Mazurenko, A. S., Klymchuk, O. A., Shramenko, O. M., Sychova, O. A. (2014). Comparative analysis of decentralized heating systems of residential buildings with the use of electricity. Eastern-European Journal of Enterprise Technologies, 5 (8 (71)), 21–25. doi: https://doi.org/10.15587/1729-4061.2014.28012
  10. Klymchuk, O., Denysova, A., Balasanian, G., Alhemiri, S. A., Borysenko, K. (2018). Implementation of an integrated system of intermittent heat supply for educational institutions. EUREKA: Physics and Engineering, 1, 3–11. doi: https://doi.org/10.21303/2461-4262.2018.00557
  11. Sarbu, I., Sebarchievici, C. (2010). Heat pumps – efficient heating and cooling solution for buildings. WSEAS Transac Heat Mass Transfer, 5 (2), 31–40.
  12. Sarbu, I., Sebarchievici, C. (2014). A study of the performances of low-temperature heating systems. Energy Efficiency, 8 (3), 609–627. doi: https://doi.org/10.1007/s12053-014-9312-4
  13. Mazurenko, A., Denysova, A., Balasanian, G., Klimchuk, A., Borysenko, K. (2017). Improving the operation modes efficiency in heat pump systems of hot water supply with the two-stage heat accumulation. Eastern-European Journal of Enterprise Technologies, 1 (8 (85)), 27–33. doi: https://doi.org/10.15587/1729-4061.2017.92495
  14. Mazurenko, A. S., Denysova, A. Ye., Klymchuk, O. A., Nho Min Khieu (2013). Ustanovka kombinovanoi systemy alternatyvnoho teplopostachannia navchalnoho korpusu ONPU. Materialy IV mizhnarodnoi konferentsiyi mahistriv, aspirantiv ta naukovtsiv «Upravlinnia proektamy v umovakh tranzytyvnoi ekonomiky». Vol. 2. Odessa, 92–94.
  15. Panferov, V. I., Nagornaya, A. N., Anisimova, E. Yu. (2006). K teorii matematicheskogo modelirovaniya teplovogo rezhima zdaniy. Vestnik YUUrGU, 14, 128–132.
  16. Sokolov, E. Ya. (1999). Teplofikaciya i teplovye seti uchebnik dlya vuzov. Moscow: Izd-vo MEI, 472.
  17. Vasil'ev, G. P., Lichman, V. A., Peskov, N. V. (2010). Chislenniy metod optimizacii preryvistogo rezhima otopleniya. Matematicheskoe modelirovanie, 22 (11), 123–130.
  18. Mishin, M. A. (2011). Teplovoy rezhim zhilyh zdaniy. Polzunovskiy Vestnik, 1, 104–115.
  19. Korinchevska, T. V. (2010). Perspektyvni metody akumuliuvannia teplovoi enerhiyi. Naukovi pratsi ONAKhT, 37, 236–241.
  20. Wu, C., Nikulshin, V. (2000). Method of thermoeconomical optimization of energy intensive systems with linear structure on graphs. International Journal of Energy Research, 24 (7), 615–623. doi: https://doi.org/10.1002/1099-114x(20000610)24:7<615::aid-er608>3.0.co;2-p

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Published

2018-11-23

How to Cite

Mazurenko, A., Denysova, A., Balasanian, G., Klymchuk, O., & Tsurkan, A. (2018). Construction of methods to improve operational efficiency of an intermittent heat supply system by determining conditions to employ a standby heating mode. Eastern-European Journal of Enterprise Technologies, 6(8 (96), 25–31. https://doi.org/10.15587/1729-4061.2018.148049

Issue

Vol. 6 No. 8 (96) (2018): Energy-saving technologies and equipment

Section

Energy-saving technologies and equipment

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Copyright (c) 2018 Oleksandr Klymchuk, Alla Denysova, Anton Mazurenko, Gennadiy Balasanian, Andrii Tsurkan

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