The Impact of Energy-Efficient Heating Modes on Human Body Exergy Consumption in Public Buildings

Deshko, V.; Bilous, Inna; Buyak, Nadia; Шевченко, О. М.

doi:10.1109/ess50319.2020.9160270

Cited by 4 publications

(5 citation statements)

References 12 publications

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“…The software product takes into account the inertial characteristics of the building envelope and systems, the dynamics of climatic data variability. At the output, the software product allows obtaining air temperature, surface radiation temperature, heating/cooling and ventilation system (HVAC-system) load, and others (Deshko et al 2020). The dynamic model in the Matlab software environment is created using Simulink tool subsystems, which in turn uses Simscape.…”

Section: Methodsmentioning

confidence: 99%

“…The thermal interaction between the different areas of the building and HVAC (Heating, Ventilation and Air-Conditioning) leads to different behaviors that cannot be accurately controlled by classical control methods (Perera et al 2014). Thus, advanced control systems that can handle multiple inputs and multiple outputs are the best approach to control the thermal condition of buildings and thermal comfort (Deshko et al 2020b). In addition, with the efficient use of energy resources in the direction of achieving NZEBs in HVAC systems, the study of ventilation systems requires special attention (Bilous et al 2020, Deshko et al 2020a).…”

Section: Introductionmentioning

confidence: 99%

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Transient Energy Models of Housing Facilities Operation

et al. 2021

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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.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Transient Energy Models of Housing Facilities Operation

et al. 2021

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“…Furthermore, a majority of these buildings are devoid of adequate mechanical ventilation systems, leading to a reliance on natural ventilation or outdoor air infiltration through building exteriors, such as walls and roofs. This, in turn, results in substantial thermal energy losses [39][40][41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

Cold Climate Challenges: Analysis of Heat Recovery Efficiency in Ventilation Systems

Prozuments,

Zemitis,

Bulanovs

2023

Energies

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As building energy consumption gains ever-increasing attention worldwide, the focus on addressing it through the examination and optimization of efficient heat recovery solutions continues to intensify. With well-insulated and airtight buildings, the proportion of heating needs attributed to ventilation is growing, leading to the widespread integration and optimization of heat recovery solutions in mechanical ventilation systems. Heat recovery in ventilation is a highly efficient strategy for reducing heat losses and conserving energy. This study involves the investigation of a ventilation unit installed in an apartment situated in Riga, Latvia, as a practical examination of heat recovery system efficiency within the Latvian climate conditions, representing a cold climate region. The objective of this study was to examine the heat recovery efficiency of the ventilation system in the Latvian climate with variable outdoor and exhaust air parameters, given that the dry heat recovery efficiency is different from the actual heat recovery efficiency. The ventilation unit was equipped with a plate heat exchanger at an airflow rate of 105 m3/h. To evaluate heat recovery efficiency, extensive measurements of air temperature and relative humidity were conducted. The collected data was analyzed, employing statistical regression analysis to ensure measurement reliability and assess correlations. The findings indicated a strong correlation between variables such as heat content, moisture content, and sensible air parameters. It was observed that the actual heat recovery efficiency was 6% higher than the calculated dry efficiency, emphasizing the importance of considering real-world conditions in heat recovery assessments. Additionally, regression analysis demonstrated a positive linear correlation with a coefficient of 0.77, highlighting the dependency between actual measurements and the theoretical model. These quantitative outcomes provide essential insights for optimizing heat recovery systems and enhancing energy-efficient ventilation practices, especially in cold climate environments. Moreover, this study highlights the strong correlation between variables such as heat content, moisture content, and sensible air parameters. Findings offer essential insights for optimizing heat recovery systems and enhancing energy-efficient ventilation practices, especially in cold climate environments.

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“…Improvement of the energy efficiency in buildings is an important and complex public task. Particular attention should be paid to increasing the energy efficiency of public buildings, the level of thermal comfort, which is regulated by the relevant requirements (Zare et al 2018) and is widely covered in recent studies (Deshko et al 2020, Deshko et al 2016, Hurnik et al 2017, Dylewski et al 2012). In addition, the human factor is taken into account by determining the level of use and the degree of occupancy of the building (Rodrigues et al 2017), which creates the need to consider economic, environmental (Javid et al 2019), energy and social factors in assessing and making decisions during thermal modernization of the building.…”

Section: Introductionmentioning

confidence: 99%

“…A building is a complex energy system. And the issues of energy consumption are investigated starting from the heat source and ending with enclosing structures, however, the requirements for thermal comfort are set by a human, which is reflected in the following works (Dovjak et al 2015, Deshko et al 2020, Deshko et al 2016. Thermal comfort models that are developed by Fanger (Fanger 1973) formed the basis of the ISO 7730 standard.…”

Section: Introductionmentioning

confidence: 99%

Сhanging Energy and Exergy Comfort Level after School Thermomodernization

2021

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Increasing the level of thermal resistance of the building envelope in combination with the choice of heat source is an urgent task. It is important to take into account changes in the cost of energy over time. Thermal modernization, in its turn, allows to increase the level of thermal comfort, which is not taken into account and evaluated in practice, although the relevant standards for comfort conditions and categories of buildings to ensure comfort have been introduced in Ukraine. This paper analyzes the change in the level of comfort after thermal modernization, determines the category of the building to provide comfortable conditions, as well as identifies the change in the average radiation temperature of the fences, as one of the main factors of PMV change in these conditions.

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The Impact of Energy-Efficient Heating Modes on Human Body Exergy Consumption in Public Buildings

Cited by 4 publications

References 12 publications

Transient Energy Models of Housing Facilities Operation

Transient Energy Models of Housing Facilities Operation

Cold Climate Challenges: Analysis of Heat Recovery Efficiency in Ventilation Systems

Сhanging Energy and Exergy Comfort Level after School Thermomodernization

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