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2 2021

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Transient Energy Models of Housing Facilities Operation

Deshko Valerii, Bilous Inna, Biriukov Dmytro, Yatsenko Olena

Rocznik Ochrona Środowiska

2021

Tom 23

539--551

Buildings are the main consumer of energy resources in the total energy balance of the countries in Central and Eastern Europe, the main energy consumption is allocated for heating. Efficient use of energy resources for heating needs to a large extent depends on the efficiency of regulation of heating systems. In the article, dynamic mathematical models of a two-room typical apartment in Ukraine, built in 2016, were developed in Matlab and EnergyPlus software environment. The simulations were carried out using IWEC hourly climate data for the city of Kyiv. The results of simulations of thermal energy consumption in Matlab are characterized by a larger range of fluctuations of the heating system load, which is typical for the real operating conditions of the system with the controller of ON/OFF type. In EnergyPlus it is assumed that the gas boiler operates continuously in the ON mode. In the research, the change of load on the apartment heating system was studied at different numbers and locations of air temperature control sensors installation, according to which the controller of the autonomous gas boiler operates.

Modeling of unsteady temperature regimes of autonomous heating systems

Deshko Valeriy, Bilous Inna, Biriukov Dmytro

Journal of New Technologies in Environmental Science

2021

Vol. 5, nr 3

91--99

The paper analyzes the energy consumption for heating a two-room apartment based on dynamic modeling of energy processes in Matlab software environment and quasi-stationary model EN ISO 13790, which is the basis of the national standard of Ukraine DSTU B A.2.2-12:2015. A comparison of the results of modeling, taking into account the thermal interaction between the zones of the building, using a dynamic model was carried out. A comparative analysis of the installation of air temperature sensors in rooms, the signal from which is used to operate the On-Off controller, is presented. Recommendations on the installation of room temperature sensors and their number are provided.