scholarly journals A16 Study on Various Heat Sources of Stirling Engine Power Generation and Heat Supply System for Business Use

2011 ◽  
Vol 2011.14 (0) ◽  
pp. 93-94
Author(s):  
Hiroshi SEKIYA ◽  
Kouki WATANABE
Keyword(s):  
Power Generation ◽  
Heat Supply ◽  
Heat Supply System ◽  
Supply System ◽  
Stirling Engine ◽  
Heat Sources ◽  
Engine Power

scholarly journals IMPLEMENTATION OF A HYBRID INTERMITTENT HEAT SUPPLY SYSTEM FOR EDUCATIONAL INSTITUTIONS

2020 ◽  
Vol 4 ◽  
pp. 29-31
Author(s):  
Oleksandr Klymchuk ◽  
Lidiia Ivanova ◽  
Olena Bodiul
Keyword(s):  
Renewable Energy ◽  
Heat Supply ◽  
Renewable Energy Sources ◽  
Heat Supply System ◽  
Supply System ◽  
Educational Institutions ◽  
Energy Sources ◽  
Heat Sources ◽  
Public Buildings ◽  
Supply Systems

The experience of introducing a hybrid intermittent heating system for educational institutions is presented. The analysis of theoretical and experimental research, modern energy technologies for the integration of renewable energy sources into innovative and existing heat supply systems for buildings. The adaptation of modern developments of hybrid systems to buildings operating both in permanent and intermittent operation mode (administrative institutions, educational institutions and other public buildings) has been carried out. The conditions for increasing the efficiency of using heterogeneous renewable energy sources in combined heat supply systems have been established. For the proposed combined heat supply system, a hybrid heat generation is provided using low-potential renewable heat sources in the heat pump cycle and high-potential traditional heat sources in a pellet boiler. A mathematical model of the operating modes of a combined heat supply system using renewable heat sources is proposed, which can be used for numerical modeling of thermal processes in a variable heat supply mode for public buildings. The study of the dynamics of heating the premises when changing the climatic conditions of different regions of Ukraine, including the southern regions, is done. This makes it possible to analyze the efficiency of using alternative energy sources for heat supply and substantiate the conditions for including heat accumulators in the circuit. The research results are relevant because allow to achieve significant energy savings for heat supply of public buildings, characterized by a low level of energy efficiency. The proposed solutions indicate that the combined use of the capabilities of heterogeneous renewable energy sources can be effective only with a hybrid method of heat generation using a heat pump and a pellet boiler, taking into account the operating mode of buildings. As a result of theoretical and experimental studies, it was established: the dynamics of heating and cooling of premises with a high accumulation capacity; the share of replacement of the consumed thermal power in the hybrid use of heat generators. The conditions for the most effective use of heat accumulators in a combined heat supply system have been established. The results obtained make it possible to increase the efficiency of the use of renewable energy sources for public buildings, taking into account the mode of their operation, in which the heat supply system operates in an intermittent mode

scholarly journals IMPLEMENTATION OF AN INTEGRATED SYSTEM OF INTERMITTENT HEAT SUPPLY FOR EDUCATIONAL INSTITUTIONS

2018 ◽  
Vol 1 ◽  
pp. 3-11 ◽  
Author(s):  
Oleksandr Klymchuk ◽  
Alla Denysova ◽  
Gennadiy Balasanian ◽  
Saad Aldin Alhemiri ◽  
Krystyna Borysenko
Keyword(s):  
Heat Supply ◽  
Renewable Energy Sources ◽  
Heat Supply System ◽  
Integrated Approach ◽  
Supply System ◽  
Integrated System ◽  
Heat Sources ◽  
Renewable Sources ◽  
World State ◽  
Effective Use

A review of the current world state of application of various heat supply regimes for public buildings is conducted. The efficiency analysis of the use of various renewable energy sources in combined heat supply systems is analyzed. An integrated heat supply system with successive heating of the coolant from low-potential renewable sources of heat (solar system) to high-temperature traditional heat sources (gas and pellet boilers) is developed. A mathematical model of the integrated heat supply system using renewable sources of heat is proposed. This model can be used to simulate the processes of heating rooms in the intermittent heat supply mode. The dynamics of heating of premises with various heating devices: with natural convection (radiator) and forced convection (fan coils) is carried out. During the heating season (2016–2017), the operation modes of integrated systems of alternative intermittent heat supply (ISAIHS) are studied. These studies are extremely relevant for solving the issues of rational use of energy resources. The proposed solutions show that the most effective use of renewable sources of heat can be only in an integrated approach to solving this issue. Also it should be noted the interaction of ISAIHS components: the heat source – the heating system – the characteristics of the building – the operating modes of the premises. As a result of the research, the boundaries of the effective use of various heat generators in ISAHS are established. The influence of the type of heating devices and insulation of internal walls on the effectiveness of ISAIHS operation is revealed. The full-scale tests of a pilot installation of an integrated heat supply system are carried out. The obtained results will help to use heat sources more efficiently with a two-period operation regime for new houses. This can be used to improve the energy efficiency of existing buildings.

scholarly journals ENHANCING EFFICIENCY OF USING ENERGY RESOURCES IN HEAT SUPPLY SYSTEMS OF BUILDINGS WITH VARIABLE OPERATION MODE

2020 ◽  
Vol 3 ◽  
pp. 59-68
Author(s):  
Oleksandr Klymchuk ◽  
Alla Denysova ◽  
Gennadiy Balasanian ◽  
Lidiia Ivanova
Keyword(s):  
Mathematical Modeling ◽  
Storage Tank ◽  
Heat Supply ◽  
Operation Mode ◽  
Heat Supply System ◽  
Supply System ◽  
Heat Sources ◽  
Operating Modes ◽  
Heat Supply Systems ◽  
Supply Systems

As a research result, characteristic indicators of the efficiency of using various heat sources in combined heat supply systems were determined. During the study, various schemes for integrating heat accumulators in heat supply systems were considered. Water was used as a battery, which also acts as a coolant. Mathematical modeling of processes in combined heat supply systems using intermittent heating is carried out. The characteristic operating modes of the elements of heat supply systems that take into account the operating modes of heat consumers are determined. Mathematical modeling was carried out using a software package that allows to obtain the distribution of heat power of the heat supply system by its main elements and its characteristic operation modes. According to the research results, a coefficient of thermal power reduction and a coefficient of efficiency of using the heat accumulator volume were proposed. These coefficients allow to evaluate the efficiency of heat sources and the efficiency of using the volume of the heat storage tank. Based on the obtained data, the task was set to optimize the daily load of the heat source, taking into account the installation of the storage tank. The research results can be used for the reconstruction of heat supply systems of buildings with a two-period operation mode (operation duty) using both traditional and renewable heat sources. This will significantly increase the efficiency of the use of elements of the heat supply system, even out the daily heat generation schedule and increase the service life of the main equipment

Investigations and designing of a geothermal heat supply system

2010 ◽  
Vol 57 (4) ◽  
pp. 341-346 ◽  
Author(s):  
V. A. Butuzov ◽  
G. V. Tomarov ◽  
E. V. Bryantseva ◽  
V. V. Butuzov
Keyword(s):  
Heat Supply ◽  
Heat Supply System ◽  
Supply System ◽  
Geothermal Heat

scholarly journals STUDYING HUMAN PARTICIPATION IN MICROCLIMATE MANAGEMENT

ASJ. ◽  
2020 ◽  
Vol 1 (42) ◽  
pp. 42-47
Author(s):  
M. Koroli ◽  
F. Khashimova
Keyword(s):  
Heat Supply ◽  
Mutual Influence ◽  
Heat Supply System ◽  
Supply System ◽  
Sociological Research

In the work on the analysis of sociological research, an author attempts to reveal the mutual influence that exists between the heat supply system and the consumer.

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