scholarly journals Economic efficiency of application of solar window

2017 ◽  
Vol 12 (2) ◽  
pp. 31-38
Author(s):  
Stepan Shapoval
Keyword(s):  
Renewable Energy ◽  
Feasibility Study ◽  
Economic Efficiency ◽  
Heat Supply ◽  
Practical Experience ◽  
Solar Heat ◽  
Solar Systems ◽  
Detailed Explanation ◽  
Solar Window ◽  
Fuel And Energy Sector

Abstract Priority and qualitatively new direction in the fuel and energy sector is renewable energy. This paper describes a feasibility study of using solar window in the system of solar heat supply. The article presents literature data about the effectiveness of the use of solar systems in other countries. The results confirm a sufficient efficiency of solar heat supply with using solar Windows. Insights based on practical experience and mathematical calculations, which are aimed at a detailed explanation of economic efficiency of the proposed construction.

Contribution to mathematical modelling of charging and discharging of the seasonal heat storage tank

2012 ◽  
Vol 3 (1) ◽  
pp. 75-79
Author(s):  
L. Böszörményi ◽  
E. Šiváková
Keyword(s):  
Storage Tank ◽  
Heat Supply ◽  
Heat Storage ◽  
Adverse Impact ◽  
Heating Period ◽  
Short Term ◽  
Solar Systems ◽  
Accumulation Capacity ◽  
Seasonal Heat ◽  
Direct Use

Abstract The seasonal heat storage tank is the most important component of the SDH system, which allows significant increase in the share of solar energy in heat supply in comparison with conventional solar systems with short-term accumulation of heat. The adverse impact of their investment sophistication on competitiveness may be compensated by the increased use. For example: Administrative cooperation with heat pump allows increasing the accumulation capacity of the seasonal heat storage tank. Such cooperetion causes the direct use of heating energy and the accumulation of cooling energy produced by heat punp in the final stage of the heating period. It can be used to remote cooling supplied buildings. Experimentation on mathematical models is possible to obtain valuable insights about the dynamics of the processes of charging and discharging in the seasonal storage tank and subsequently used in the design, implementation and operation.

scholarly journals Wastewater Treatment Plants as Local Thermal Power Stations—Modifying Internal Heat Supply for Covering External Heat Demand

Processes ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 1981
Author(s):  
Florian Kretschmer ◽  
Bernd Hrdy ◽  
Georg Neugebauer ◽  
Gernot Stoeglehner
Keyword(s):  
Wastewater Treatment ◽  
High Temperature ◽  
Low Temperature ◽  
Feasibility Study ◽  
Heat Recovery ◽  
Heat Supply ◽  
Wastewater Treatment Plants ◽  
Internal Heat ◽  
District Heating ◽  
Gas Combustion

To counteract climate change, the application of renewable energy sources and their efficient use are of crucial importance. In this context, wastewater has also gained increased attention in recent years. For decades, wastewater treatment plants have applied the heat from digester gas combustion to supply internal demands. However, in the context of efficient energy use the question arises: can using high temperature heat for supplying low temperature demand still be considered the best option? This article presents an innovative approach to covering wastewater treatment plant (WWTP) internal demand with low temperature wastewater heat recovery, making thermal energy from digester gas combustion available for feed-in to a local high temperature district heating network. The presented feasibility study was carried out in an Austrian municipality and investigates the heat balance, the economic risk, climatic benefits and the social aspects of the suggested approach. The practical implementation of the novel approach was planned in two steps. First, the WWTP should be connected to the district heating network to enable the feed-in of excess heat. Second, the WWTP internal heat supply should be modified and based on wastewater heat recovery from the effluent. Due to the promising results of the feasibility study, the first step was realized in summer 2020. The second and final step was initiated in 2021.

scholarly journals Experimental determination of the efficiency of the solar collector integrated into the light transparent building facade

2019 ◽  
Vol 14 (2) ◽  
pp. 31-38
Author(s):  
Vasyl Zhelykh ◽  
Peter Kapalo ◽  
Stepan Shapoval ◽  
Iryna Venhryn ◽  
Khrystyna Kozak
Keyword(s):  
Renewable Energy ◽  
Solar Collector ◽  
Heat Supply ◽  
Energy Systems ◽  
Heat Supply System ◽  
Optimal Operation ◽  
Supply System ◽  
Energy Sources ◽  
Further Development

AbstractOne of the most promising energy sources is solar energy, which is confirmed by the growth in the development of renewable energy for European countries. The main goal of research is to design and implement the latest energy systems for passive buildings using renewable energy. In this paper is documented the optimal operation stages of the solar heat supply system were investigated with recommendations for further development of the design and construction of passive buildings in Ukraine South.

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