Theoretical and Experimental Investigation of the Efficiency of the Use of Heat-Accumulating Material for Heat Supply Systems

Klymchuk, Oleksandr; Denysova, Alla; Shramenko, Aleksandr; Borysenko, Krystyna

doi:10.21303/2461-4262.2019.00901

Cited by 13 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The second option is an all-season installation that provides year-round heat supply. Several scientific works are related to the study and determination of rational parameters of such systems [19][20][21].…”

Section: Solar Heat Supply Systems and Building Aspectsmentioning

confidence: 99%

Efficiency Improvement of Eco-Friendly Solar Heat Supply System as a Building Coating

et al. 2023

View full text Add to dashboard Cite

The background of this article is the potential energy savings of solar heat supply systems due to the use of the renewable energy of solar radiation. The motivation is to create a solar collector design that would combine the functions of both a building cover and a solar collector. It is necessary to investigate and compare different types of solar collector coatings (traditional and modern) and pipe diameters. The purpose of the article is to solve aspects of energy efficiency for new eco-friendly solar collectors. The most effective result occurred with the solar collector covered with the rubber–graphite composition of Grafplast PDA, and when using Prandelli/Tuborama pipes with a diameter of 0.016 m. Their efficiency increased by 8% compared to the second version of the collector made using a more traditional solution. The influence of the distance between the pipes and the flow rate of the heat carrier on the efficiency of the solar collectors was evaluated.

show abstract

Section: Solar Heat Supply Systems and Building Aspectsmentioning

confidence: 99%

Efficiency Improvement of Eco-Friendly Solar Heat Supply System as a Building Coating

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Also, such systems allow solving complex energy and environmental issues: utilization of household waste, combustion of wood waste from forestry and urban farms, etc. [8,9].…”

Section: It Is Shown That the Oee Indicator Allows One To Characterize The Efficiency Of Both The Heat Supply System As A Whole And Its Imentioning

confidence: 99%

Improvement of methods of comprehensive assessment of the operation efficiency of centralized heat supply systems in municipal heat power engineering

Kozlov

Kovalchuk

Klymchuk

et al. 2021

EEJET

Self Cite

View full text Add to dashboard Cite

The possibility of a comprehensive assessment of the efficiency of the operation of a district heating system based on the indicator of the overall efficiency of the equipment OEE (overall equipment efficiency) and its extension to the system as a whole is considered. The disunity of the direction of existing approaches in assessing the efficiency of operation of district heating systems does not allow a comprehensive assessment of the overall efficiency of the functioning of the technological sequence of the entire system. It is proposed to consider efficiency as the probability of full functioning of all elements of the heat supply system. It is shown that the heat output of the boiler house is proportional to the power consumption of the boiler house and is approximated by a periodic function. It is shown that the main element of the heat supply system, which determines its efficiency, is the heat-generating source. As a result of the study, it is determined that the efficiency of the heat-generating source functioning increases as the maximum value of its efficiency is reached. Numerical modeling has shown that the flexible use of the installed heat generator capacity contributes to an increase in the efficiency factor from 0.53 to 0.70 and the overall efficiency of the heat supply system can be increased by more than 30 %. When designing a boiler house, it was recommended to provide for the installation of capacities with gradation 1; 0.5; 0.25. It is shown that the OEE indicator allows one to characterize the efficiency of both the heat supply system as a whole and its individual components, and can be used in the design and analysis of the operation of systems

show abstract

“…The issues of energy and material saving (Selejdak, 2014;Gumen, 2017), energy efficiency (Klymchuk, 2019) and accounting and cost management are all over-the-top. In the face of an acute economic crisis, careful use of energy is an important priority of the economic policies of European countries.…”

Section: Introductionmentioning

confidence: 99%

Enhancing of energetic and economic efficiency of air distribution by swirled-compact air jets

Zhelykh

Voznyak

Yurkevych

et al. 2021

Production Engineering Archives

View full text Add to dashboard Cite

The article is devoted to solving the urgent task of increasing the efficiency of air distribution by swirled-compact air jets to ensure the normative parameters of indoor air. The dynamic parameters of the swirled-compact air jet during its leakage in the alternating mode and the formation of a dynamic indoor climate in the room are determined. For improvement of comfortable conditions in the room and design of energy saving circuits of air distribution it is suggested to use swirled-compact air jets, which flow from the inflow and exhaust heat recuperators with heat recovery of the exhaust air. An energy audit of the ventilation system reconstruction with a recuperator using was carried out. The method of taking into account the fact of application of several measures, which cannot be carried out simultaneously, and discount rate dynamics is proposed.

show abstract

Theoretical and Experimental Investigation of the Efficiency of the Use of Heat-Accumulating Material for Heat Supply Systems

Cited by 13 publications

References 5 publications

Efficiency Improvement of Eco-Friendly Solar Heat Supply System as a Building Coating

Efficiency Improvement of Eco-Friendly Solar Heat Supply System as a Building Coating

Improvement of methods of comprehensive assessment of the operation efficiency of centralized heat supply systems in municipal heat power engineering

Enhancing of energetic and economic efficiency of air distribution by swirled-compact air jets

Contact Info

Product

Resources

About