scholarly journals Education and research in the field of renewable sources of energy in the Centre Of Sustainable Development And Energy Savings WGGIOS AGH in Miekinia

2020 ◽  
Vol 154 ◽  
pp. 07006
Author(s):  
Wojciech Górecki ◽  
Jarosław Kotyza ◽  
Elżbieta Hałaj ◽  
Wojciech Luboń ◽  
Grzegorz Pełka ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Local Governments ◽  
Energy Savings ◽  
Renewable Energy Sources ◽  
Science And Technology ◽  
Pressure Sensors ◽  
Heat Pumps ◽  
Pump Efficiency ◽  
Renewable Sources ◽  
Renewable Sources Of Energy

The Centre of Sustainable Development and Energy Savings of the Faculty of Geology, Geophysics and Environmental Protection of AGH University of Science and Technology in Miekinia conducts research and educational activities in the field of renewable sources of energy, geothermal heat pumps especially. Growing interest in using the renewable energy sources (RES) is reflected upon the interest in such a discipline of studies. Many people declare intention of studying RES. This is a modern discipline, opened at AGH University of Science and Technology in 2003 as the first in Poland. Since 2012, when the Centre was open ca. 8000 people (including students, pupils, local governments and communities) were educated here. Not only geothermal energy is a main focus attention field. In the Centre other renewable sources of energy are also researched. This include solar energy (both photovoltaic and thermal), solid fuel boilers and wind energy. The Centre is heated by heat pumps with ground sources which are simultaneously use by students for practice and measurements. There are didactic heat pumps with temperature and pressure sensors and electric meters to be used by students during measurements. The Centre is in disposal of self-constructed Thermal Response Test device for thermal parameters measurements. In a stand for testing ground-source brine heat pumps for central heating and hot domestic water preparation research are conducted on the COP heat pump efficiency in accordance with the PN-EN 14511 standard. The Centre works on the prototyping of new, innovative heat pumps.

Blighia unijugata and Luffa cylindrica Seed Oils: Renewable Sources of Energy for Sustainable Development in Rural Africa

2012 ◽  
Vol 5 (3) ◽  
pp. 713-718 ◽  
Author(s):  
Adewale Adewuyi ◽  
Rotimi A Oderinde ◽  
B. V. S. K. Rao ◽  
R. B. N. Prasad ◽  
B. Anjaneyulu
Keyword(s):  
Sustainable Development ◽  
Seed Oils ◽  
Luffa Cylindrica ◽  
Renewable Sources ◽  
Renewable Sources Of Energy ◽  
Rural Africa

Renewable Energy Strategies for Sustainable Development in Fujian

2014 ◽  
Vol 1073-1076 ◽  
pp. 2477-2482 ◽  
Author(s):  
Yao Li Zhang ◽  
Qi Xun Guo
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Energy Production ◽  
Nuclear Power ◽  
Nuclear Energy ◽  
Fossil Fuels ◽  
Energy Savings ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Strategies

Renewable energy is considered important resources for sustainable development all over the world. Fujian province, locating in south-east of China, was selected as an example to discuss renewable energy strategies for sustainable development. The potential renewable energy sources in Fujian were analyzed. And the strategies involve three major technological changes, including energy savings on the demand side, efficiency improvements in the energy production, and replacement of fossil fuels by various sources of renewable energy. Nuclear energy was also introduced to the energy system. The conclusion was that converting present energy systems into a 100% renewable system was possible; in case of some flexible energy system technologies as well as nuclear power were introduced to the present energy system.

scholarly journals Renewable energy sources for gas preheating

2019 ◽  
Vol 116 ◽  
pp. 00019 ◽  
Author(s):  
Sebastian Englart ◽  
Andrzej Jedlikowski ◽  
Wojciech Cepiński ◽  
Marek Badura
Keyword(s):  
Renewable Energy ◽  
Heat Pump ◽  
Energy Savings ◽  
Renewable Energy Sources ◽  
High Energy ◽  
Heat Pumps ◽  
Gas Absorption ◽  
Energy Sources ◽  
Ground Heat Exchangers ◽  
Gas Heating

To ensure proper gas supply parameters, to the polish natural gas distribution network, which includes about 900 pressure reduction stations (PRS), requires high energy consumption for gas heating, that amounts to approx. 700 TJ/year. This value can be significantly reduced by using renewable energy sources (e.g. ground heat exchangers, heat pumps) in polish gas preheating PRS. This paper presents the analysis of some applications for gas preheating by using gas absorption heat pump and combination of heat pump and ground heat exchanger. The results confirm a noticeable heat energy savings at the PRS by 44%.

Saving Primary Energy Consumption Through Exergy Analysis of Combine Distillation and Power Plant

2012 ◽  
Vol 9 (2) ◽  
pp. 65
Author(s):  
Alhassan Salami Tijani ◽  
Nazri Mohammed ◽  
Werner Witt
Keyword(s):  
Energy Consumption ◽  
Power Plant ◽  
Heat Pump ◽  
Heat Recovery ◽  
Energy Savings ◽  
Primary Energy ◽  
Heat Pumps ◽  
Saturated Steam ◽  
Distillation Unit ◽  
Primary Energy Consumption

Industrial heat pumps are heat-recovery systems that allow the temperature ofwaste-heat stream to be increased to a higher, more efficient temperature. Consequently, heat pumps can improve energy efficiency in industrial processes as well as energy savings when conventional passive-heat recovery is not possible. In this paper, possible ways of saving energy in the chemical industry are considered, the objective is to reduce the primary energy (such as coal) consumption of power plant. Particularly the thermodynamic analyses ofintegrating backpressure turbine ofa power plant with distillation units have been considered. Some practical examples such as conventional distillation unit and heat pump are used as a means of reducing primary energy consumption with tangible indications of energy savings. The heat pump distillation is operated via electrical power from the power plant. The exergy efficiency ofthe primary fuel is calculated for different operating range ofthe heat pump distillation. This is then compared with a conventional distillation unit that depends on saturated steam from a power plant as the source of energy. The results obtained show that heat pump distillation is an economic way to save energy if the temperaturedifference between the overhead and the bottom is small. Based on the result, the energy saved by the application of a heat pump distillation is improved compared to conventional distillation unit.

IDENTIFICATION OF STRATEGIC PRIORITIES OF INVESTMENT INTO DEVELOPMENT OF ALTERNATIVE ENERGETICS

2017 ◽  
pp. 52-59
Author(s):  
Svitlana Sivitska
Keyword(s):  
Social Work ◽  
International Cooperation ◽  
Alternative Energy ◽  
Associate Professor ◽  
Integrated Analysis ◽  
Energy Investment ◽  
Renewable Sources ◽  
Renewable Sources Of Energy ◽  
National Technical ◽  
The Matrix

UDC 338:336.02:621.311 Svitlana Sivitska, Ph.D., Associate Professor at Finance and Banking Department, Vice-Rector for Scientific, Educational, Social Work and International Cooperation. Poltava National Technical Yuri Kondratyuk University. Identification of strategic priorities of investment into development of alternative energetics. There are the stages of the methodology for choosing the strategic priorities of investing in alternative energy explored in the article. The potential of alternative energy analyzed. The strategic priorities of alternative energy have been explored. An integrated analysis of the potential of alternative energy is carried out on the territorial basis done. The matrix of choice of strategic priorities of investing in alternative energy determined. Keywords: energetic security, alternative energetics, renewable sources of energy, investment, strategic priorities, matrix.

THE ASSESSMENT OF NOISE GENERATED BY HEAT PUMPS INSTALLED OUTDOORS

Akustika ◽  
2020 ◽  
pp. 2-7
Author(s):  
Marián Flimel
Keyword(s):  
Present Article ◽  
Energy Efficient ◽  
Heat Pumps ◽  
Assessment Methods ◽  
Secondary Effect ◽  
Renewable Sources ◽  
Time Exposure ◽  
Energy Efficient Buildings ◽  
Important Position

Energy-efficient buildings utilise the potential of renewable sources, among which heat pumps hold an important position. As this technology has a secondary effect on the environment through its noise immission, locations of outdoor units in the exterior should be subjected to the assessment. The present article deals with the options of placing heat pumps in the exterior and the placement assessment methods. The noise burden identification through the assessment of the time exposure is presented in the example of an in situ measurement.

scholarly journals Sustained sustainable development actions of China from 1986 to 2020

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Bingsheng Liu ◽  
Tao Wang ◽  
Jiaming Zhang ◽  
Xiaoming Wang ◽  
Yuan Chang ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Local Governments ◽  
Local Development ◽  
Well Being ◽  
The Sustainable Development ◽  
Positive Effects ◽  
Development Goals ◽  
Development Levels ◽  
The Right ◽  
Resource Conditions

AbstractAchieving the Sustainable Development Goals (SDGs) is a long-term task, which puts forward high requirements on the sustainability of related policies and actions. Using the text analysis method, we analyze the China National Sustainable Communities (CNSCs) policy implemented over 30 years and its effects on achieving SDGs. We find that the national government needs to understand the scope of sustainable development more comprehensively, the sustained actions can produce positive effects under the right goals. The SDGs selection of local governments is affected by local development levels and resource conditions, regions with better economic foundations tend to focus on SDGs on human well-being, regions with weaker foundations show priority to basic SDGs on the economic development, infrastructures and industrialization.

scholarly journals Recent Advancements in Technical Design and Thermal Performance Enhancement of Solar Greenhouse Dryers

2021 ◽  
Vol 13 (13) ◽  
pp. 7025
Author(s):  
Shiva Gorjian ◽  
Behnam Hosseingholilou ◽  
Laxmikant D. Jathar ◽  
Haniyeh Samadi ◽  
Samiran Samanta ◽  
...  
Keyword(s):  
Thermal Performance ◽  
Fossil Fuels ◽  
Performance Enhancement ◽  
Renewable Energy Sources ◽  
Ghg Emissions ◽  
Heat Pumps ◽  
Energy Sources ◽  
Key Factor ◽  
Hybrid Configuration ◽  
Vegetables And Fruits

The food industry is responsible for supplying the food demand of the ever-increasing global population. The food chain is one of the major contributors to greenhouse gas (GHG) emissions, and global food waste accounts for one-third of produced food. A solution to this problem is preserving crops, vegetables, and fruits with the help of an ancient method of sun drying. For drying agricultural and marine products, several types of dryers are also being developed. However, they require a large amount of energy supplied conventionally from pollutant energy sources. The environmental concerns and depletion risks of fossil fuels persuade researchers and developers to seek alternative solutions. To perform drying applications, sustainable solar power may be effective because it is highly accessible in most regions of the world. Greenhouse dryers (GHDs) are simple facilities that can provide large capacities for drying agricultural products. This study reviews the integration of GHDs with different solar technologies, including photovoltaic (PV), photovoltaic-thermal (PVT), and solar thermal collectors. Additionally, the integration of solar-assisted greenhouse dryers (SGHDs) with heat pumps and thermal energy storage (TES) units, as well as their hybrid configuration considering integration with other renewable energy sources, is investigated to improve their thermal performance. In this regard, this review presents and discusses the most recent advances in this field. Additionally, the economic analysis of SGHDs is presented as a key factor to make these sustainable facilities commercially available.

Sign in / Sign up

Export Citation Format

Share Document