Comparative analysis on thermal energy costs to ensure the comfort parameters for an individual house

2016 ◽  
Author(s):  
Radu-Cristian Dinu ◽  
Felicia-Elena Stan Ivan ◽  
Daniela Popescu
Keyword(s):  
Comparative Analysis ◽  
Thermal Energy ◽  
Energy Costs ◽  
Comfort Parameters

Direct and Indirect Utilization of Thermal Energy for Cooling Generation: A Comparative Analysis

Energy ◽  
2021 ◽  
pp. 122046
Author(s):  
Alabas Hasan ◽  
Basheer Mugdadi ◽  
Moh’d A. Al-Nimr ◽  
Bourhan Tashtoush
Keyword(s):  
Comparative Analysis ◽  
Thermal Energy

scholarly journals Determinants of Electrical and Thermal Energy Consumption in Hospitals According to Climate Zones in Poland

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7585
Author(s):  
Małgorzata Cygańska ◽  
Magdalena Kludacz-Alessandri
Keyword(s):  
Energy Consumption ◽  
Thermal Energy ◽  
Health Sector ◽  
Integrated Approach ◽  
Climatic Zone ◽  
Energy Costs ◽  
Work Intensity ◽  
Climate Zones ◽  
Climate Zone ◽  
Hospital Size

Energy use in hospitals is higher than in other public buildings, so improving energy efficiency in healthcare buildings is a significant challenge in this sector of engineering. For this, it is necessary to know the various determinants of energy consumption. Until now, the main factor affecting energy consumption in healthcare facilities studied in the literature was hospital capacity. However, the commonly used variables connected with hospital size and the number of beds do not take into account the medical activities carried out in these buildings. Assuming that energy consumption in hospitals is multiple and shaped by many factors that overlap, not only on an individual level but also on a higher scale level, this study devises a more integrated approach to its determinants. This study aims to investigate the determinants of electrical energy costs (EEC) and thermal energy costs (TEC) in Polish hospitals with regard to factors related to their size, work intensity and climate zones. The analysis was carried out using financial and resource data from all Polish hospitals for the years 2010–2019. The study used a multivariate backward stepwise regression analysis. In order to use climate as a moderating variable, a sample of Polish hospitals from 16 Polish NUTS 2 was divided into four climate zones. This article provides new empirical evidence on the determinants of electricity consumption in Polish hospitals related to their size and medical activity, taking into account climate zone as a moderating variable. The results of the analysis show that both electricity and heat consumption in hospitals are positively related to the number of doctors, beds and the number of medical operations performed. As expected, larger hospitals seem to use more energy. Moreover, there is regional heterogeneity in energy consumption in hospitals related to the climatic zone in which they operate. The conducted analysis shows that Polish hospitals located in the warmest climatic zone are characterized by higher energy consumption than hospitals in the coldest zone. It especially regards EEC in surgery hospitals. The warmer the climate zones, the higher intensity in terms of the number of surgeries, the higher EEC. In terms of nonsurgical hospitals, the influence of climate zone on EEC was not observed. Knowing the factors influencing energy consumption in hospitals can facilitate the correct adoption of an energy-saving strategy in the health sector, which is a reasonable response to climate change and supports a healthy and sustainable future.

Energy Conservation and Storage Systems

2002 ◽  
Vol 20 (5) ◽  
pp. 391-399 ◽  
Author(s):  
Ayhan Demirbaş
Keyword(s):  
Energy Management ◽  
Thermal Energy ◽  
Waste Heat ◽  
Storage Systems ◽  
Electrical Energy ◽  
Thermal Storage ◽  
Energy Costs ◽  
Thermal Battery ◽  
Storage Technology ◽  
And Storage

In response to increasing electrical energy costs and the desire for better lad management, thermal storage technology has recently been developed. Storage of thermal energy in the form of sensible and latent heat has become an important aspect of energy management with the emphasis on efficient use and conservation of the waste heat and solar energy in industry and buildings. Thermal storage has been characterized as a kind of thermal battery.

CHOICE OF HEAT SOURCE FOR RESIDENTIAL BUILDINGS

2014 ◽  
Vol 4 (4) ◽  
pp. 86-91 ◽  
Author(s):  
Denis N. VATUZOV ◽  
Svetlana M. PURING ◽  
Elena B. FILATOVA ◽  
Nikolay P. TYURIN
Keyword(s):  
Energy Source ◽  
Comparative Analysis ◽  
Heat Source ◽  
Russian Federation ◽  
Thermal Energy ◽  
Heat Supply ◽  
Residential Buildings ◽  
Regulatory Documents ◽  
The Russian Federation ◽  
Main Factors

The main factors of choice of thermal energy source for residential and public buildings in case of central heat supply unability are viewed. The current regulatory documents of the Russian Federation in the matt er of design of decentralized heat supply sources - independent boiling rooms and individual boilers - are analyzed. The comparative analysis of proposed fi ndings is made.

Thermal energy storage in the ground: Comparative analysis of heat transfer modeling using U-tubes and boreholes

Solar Energy ◽  
1996 ◽  
Vol 56 (6) ◽  
pp. 493-503 ◽  
Author(s):  
Dwayne S. Breger ◽  
James E. Hubbell ◽  
Hamid El Hasnaoui ◽  
J.Edward Sunderland
Keyword(s):  
Heat Transfer ◽  
Comparative Analysis ◽  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Heat Transfer Modeling

scholarly journals Analysis of energy consumption during convective drying of fruits and berries

2021 ◽  
Vol 273 ◽  
pp. 07027
Author(s):  
Igor Korotkiy ◽  
Evgeniy Neverov ◽  
Ludmila Lifentseva ◽  
Alexandr Raschepkin
Keyword(s):  
Energy Consumption ◽  
Comparative Analysis ◽  
Heat Pump ◽  
Energy Supply ◽  
Point Of View ◽  
Convective Drying ◽  
Energy Costs ◽  
Total Energy Consumption ◽  
Air Circulation ◽  
Suspended Layer

The work is dedicated to the calculation of energy costs for the realization of the process of convective drying of fruits and berries in a suspended layer. The energy consumption for the fan drive for organizing the air flow, providing the phenomenon of fluidization of fruits and berries, as well as the costs for supplying heat to the dehydration object have been calculated. The energy consumption was determined for various options of energy supply: using a heat pump and due to the operation of thermoelectric heaters (TEH). It is found that the largest proportion of the energy consumption for air circulation organization. It has been established that from the energy point of view, of all the investigated freons, the refrigerant R410 is the most efficient, the total energy consumption for dehydration of 1 kg of irgi berries with it is 7102 kJ, for honeysuckle - 9765 kJ / kg, for lingonberry - 7989 kJ / kg. Comparative analysis revealed that the use of a heat pump installation of convective drying fruits and berries in the fluidized bed reduces the power consumption by an average of 13% in comparison with drying by using heaters to heat the coolant.

scholarly journals A COMPARATIVE ANALYSIS OF THE PARTICULARITIES ATTITUDE TO THE LABOR OF STUDENTS AND WORKING YOUTH

2019 ◽  
Keyword(s):  
Comparative Analysis ◽  
Young People ◽  
Economic Status ◽  
Professional Activity ◽  
Energy Costs ◽  
Structural Components ◽  
Socio Economic Status ◽  
Semantic Component ◽  
Motivation Orientation ◽  
Emotional Evaluation

The article is devoted to the comparative analysis of the research results of the attitude to the labor of students and working youth. The author substantiates the relevance and significance of practical study of attitude to the labor of young people. In this study, working youth is divided into three groups, which represent three levels of socio-economic status: low, medium and high. Author also describes the criteria for the division of working youth into these groups. It is suggested to pay attention to the importance of the problem of socio-economic status of young people, which affects the attitude to the labor. The article presents the structural components of the concept of «attitude to the labor» and lists the indicators of this concept, which were practically investigated in all groups of young people. Motivational-semantic component of the attitude to labor includes such indicators as: «internal processes»; «internalization of purpose»; «instrumental motivation»; «orientation to the labor process». Emotional-evaluation component includes next indicators: «satisfaction with working conditions»; «satisfaction with achievements in work»; «feeling of success in professional activity». Behavioral component includes: «readiness for energy costs»; «distance to work»; «active strategy for solving problems». The paper presents comparative analysis and interpretation of the manifestation of these indicators in all groups of young people is conducted. The results of the comparative analysis are presented in the graphs of average.

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