RESTORABLE ENERGY SOURCES AS A FACTOR OF THE COMPETITIVE IMPROVEMENT ABILITY OF A TOURIST DESTINATION

2007 ◽  
Vol 14 (2) ◽  
pp. 263-270
Author(s):  
Daniela Gračan ◽  
Romina Alkier Radnić ◽  
Siniša Bogdan
Keyword(s):  
Power Plants ◽  
Market Price ◽  
Electric Energy ◽  
Energy Sources ◽  
Energy Costs ◽  
Tourist Destination ◽  
Wind Power Plants ◽  
The Right ◽  
Tourist Economy ◽  
The Town

Energy supply represents not only the energetic and ecological undertaking factor of tourist economy bearers, but the factor of profitability and competitiveness within the foreign tourist market as well. Lower energy costs form the prerequisites for higher profit accomplishments, as well as better market price competitiveness. Instead of exploiting natural resources, tourism should make the most of them, which brings into relief the directing of tourist economy subjects towards the use of restorable energy sources, particularly solar and wind energy. In spite of favourable climate features of Croatia, expressed in terms of insulation and windstrength, the restorable energy sources are still used rather insignificantly. Some positive moves in such a trend are noticeable on the island of Pag and in the town of Sibenik, where the electric energy is obtained in wind power-plants. In accordance with the concept of sustainable development of tourism, both solar energy and wind-mill energy should represent the skeleton for the energetic supply of the Croatian tourist coastline in the future. And only then, with the right amount of energy and without dependence on the world energetic markets, Croatia can develop its own healthy economic and tourist future.

RESEARCH OF EQUIVALENT AND MAXIMUM VALUE OF NOISE GENERATED BY WIND POWER PLANTS / VĖJO JĖGAINIŲ SKLEIDŽIAMO TRIUKŠMO EKVIVALENTINIŲ IR DIDŽIAUSIŲ VERČIŲ TYRIMAI / ИССЛЕДОВАНИЕ ЭКВИВАЛЕНТНЫХ И МАКСИМАЛЬНЫХ ЗНА ЧЕНИЙ ШУМА, РАСПРОСТРАНЯЕМОГО ВЕТРЯНЫМИ УСТАНОВКАМИ

2012 ◽  
Vol 20 (1) ◽  
pp. 27-34 ◽  
Author(s):  
Donatas Butkus ◽  
Raimondas Grubliauskas ◽  
Jurgis Mažuolis
Keyword(s):  
Wind Power ◽  
Power Plants ◽  
Sound Pressure ◽  
Acoustic Noise ◽  
Renewable Energy Sources ◽  
Electric Energy ◽  
Energy Sources ◽  
Wind Power Plants ◽  
Maximum Value ◽  
Air Temperatures

According to the Directive 2009/28EC of European Parliament and Council, dated April 23, 2009, Lithuania should strive for the part of renewable energy sources in the balance of electric energy to reach no less than 23% in the year 2020. The most favorable condition for development of wind energy in Lithuania is on a 50 km width zone by the seaside. Parks of wind power plants are expanding fast, but there is a lack of data about noise generated by wind turbines. The noise generated by the wind power plants is known to fluctuate and may spread up to 2 km beyond the wind power park. Research of noise generated by wind power plants was performed in the western part of Lithuania, near Rudaiciai village (Kretinga district) at the park of four wind power plants. Measurements were performed in cold and warm seasons when different wind speed, environment humidity and air temperatures dominated. The sound pressure levels of noise generated by wind power plants were established. The noise spread in the wind parks and beyond was evaluated according to hygiene norm HN 33:2007 “Acoustic noise. Noise value limits in the residential and public buildings and their surroundings”. Santrauka Remiantis Europos Sajungos Parlamento ir Tarybos 2009 m. balandžio 23 d. direktyva 2009/28/EB Lietuva turi siekti, kad 2020 m. atsinaujinančiųjų energijos išteklių dalis šalies elektros energijos balanse sudarytų ne mažiau kaip 23%. Lietuvoje vėjo energetikai plėtoti palankiausios sąlygos yra maždaug 50 km pločio juosta prie jūros pakrantės. Sparčiai plečiantis vėjo jėgainių parkams trūksta duomenų apie vėjo jėgainių skleidžiamą triukšmą. Žinoma, kad triukšmas nuo vėjo jėgainių yra fliuktuojantis bei gali sklisti iki 2 km už vėjo jėgainių parko ribų. Vėjo jėgainių skleidžiamo triukšmo tyrimai buvo atliekami vakarų Lietuvoje, Rūdaičių k. (Kretingos r.) prieigose esančiame keturių vėjo jėgainių parke. Atlikti žiemos ir vasaros matavimai, vyraujant skirtingiems vėjo greičiams, aplin-kos oro drėgniui, oro temperatūrai. Nustatyti vėjo jėgainių parko skleidžiamo triukšmo, garso slėgio lygiai. Pagal higienos normą HN 33:2007 ,,Akustinis triukšmas. Triukšmo ribiniai dydžiai gyvenamuosiuose ir visuomeninės paskirties pastatuose bei jų aplinkoje“ įvertinta triukšmo sklaida vėjo jėgainių pake ir už jo ribų. Резюме На основании Директивы 2009/28/УС, принятой 23 апреля 2009 г. Парламентом и Советом Евросоюза, Литвадолжна стремиться к тому, чтобы к 2020 г. часть возобновляемых источников энергии в электроэнергетическомбалансе страны составляла по крайней мере 23%. В Литве наиболее благоприятные условия для полученияветряной энергии могут быть созданы на полосе шириной примерно в 50 км вдоль зоны морского побережъя. Всвязи с интенсивным развитием парков ветряных установок данных о создаваемом ими шуме не достаточно.Известно, что шум от ветряных турбин флуктирует и может распространяться до 2 км за пределы парковветряных установок. Исследования четырех ветряных турбин и создаваемого ими шума проводились в парке ветряных установок наЗападе Литвы, в Рудайчяй (Кретингский район). Измерения проводились зимой и летом при разной скорости ветра, влажности и температуре воздуха. Установлены уровни распространяемого ветряными установками шумаи звукового давления. На основании гигиенической нормы HN 33:2007 «Акустический шум. Предельныевеличины шума для жилых зданий, зданий общественного назначения и их среды» установлено распространениешума в парке ветряных установок и за его пределами.

scholarly journals Mathematical Modeling of Power Supply of an Autonomic Enterprise Based on Wind Power Plants

2018 ◽  
Vol 7 (3.5) ◽  
pp. 4
Author(s):  
Valeri Telegin ◽  
Nikolai Titov ◽  
Anatoli Stepanov
Keyword(s):  
Wind Power ◽  
Power Supply ◽  
Small Businesses ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Geographical Location ◽  
Energy Sources ◽  
Wind Power Plants ◽  
Definition Of ◽  
Supply Systems

Power supply systems for small businesses based on renewable energy sources are most often based on converting wind energy, solar energy and water energy. Calculating its effectiveness is a time-consuming task, requiring the processing of a large amount of data specific for the geographical location of power generating units. In the article the technique of computer modeling of work of a park of wind power plants (WPP) with the purpose of definition of an optimum parity of their parameters is considered.   

Energy costs in combined solar-wind power plants

2008 ◽  
Vol 44 (3) ◽  
pp. 176-178 ◽  
Author(s):  
Sh. I. Klychev ◽  
M. M. Mukhammadiyev ◽  
O. Kh. Nizomov ◽  
K. D. Potayenko
Keyword(s):  
Solar Wind ◽  
Wind Power ◽  
Power Plants ◽  
Energy Costs ◽  
Wind Power Plants

scholarly journals The Role of the Latvian District Heating System in the Development of Sustainable Energy Supply

2011 ◽  
Vol 7 (-1) ◽  
pp. 27-31 ◽  
Author(s):  
Gatis Bazbauers ◽  
Ginta Cimdina
Keyword(s):  
Wind Power ◽  
Energy Supply ◽  
Power Plants ◽  
District Heating ◽  
Heating System ◽  
Heat Pumps ◽  
Energy Sources ◽  
District Heating System ◽  
Wind Power Plants

The Role of the Latvian District Heating System in the Development of Sustainable Energy Supply The aim of the study is to determine whether and to what extent it is possible to use excess electricity produced by wind power plants during low demand periods for district heat production by heat pumps. Energy system analysis on an hourly basis is conducted at various capacities of wind power plants. The results show that it is possible to increase the share of renewable energy sources, decrease the use of primary energy sources and CO2 emissions per unit of the produced energy, i.e. heat and electricity, by using the surplus electricity produced by wind power in the heat pumps combined with the heat storage.

scholarly journals CALCULATION OF OPTIMAL PARAMETERS FOR STORAGE AND RENEWABLE ENERGY SOURCES IN ISOLATED ENERGY SYSTEMS

2021 ◽  
pp. 91-95
Author(s):  
Mykhailo Syvenko ◽  
Oleksandr Miroshnyk
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Power Supply ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Electric Energy ◽  
Energy Sources ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Supply Systems

A detailed substantiation of the use of electric energy storage devices in the presence of generators on renewable energy sources in the power supply system is given. The dependence of the storage parameters on the composition and priority of generation in the system is investigated. The solution of the problem of determining the parameters of electricity storage devices by means of purposeful simulation of generation parameters is considered. The results of the choice of power and capacity of the energy storage using technical and economic indicators are shown. Optimal parameters of electric energy storage devices as one of the most important means of ensuring the activity of isolated power supply systems together with selection of generating devices are determined. The results of calculations of capacity of renewable energy sources in isolated power supply systems in combination with classical energy sources are given. The necessity of using the principle of activity of the distribution electric network and the possibility of its realization is demonstrated. The optimal storage capacity as a function of the share of renewable generation, the non-integrated energy produced by renewable sources and the total storage capacity are plotted for several isolated systems. The main points of the used model of the power supply system of isolated networks are given. In the studied isolated power supply systems, wind power plants and solar power plants, which have significant unpredictability of generation, are used as generation based on renewable energy sources. The problem of undersupply of electricity to the grid by stepwise increase of generation is analysed. The results of the multi-step selection of power and energy consumption of electricity storage are determined by technical criteria.

scholarly journals Special Aspects of Using the Wind Power Plants In the Power Supply System

2021 ◽  
Vol 288 ◽  
pp. 01003
Author(s):  
Saken Koyshybaevich Sheryazov ◽  
Sultanbek Sansyzbaevich Issenov ◽  
Ruslan Maratbekovich Iskakov ◽  
Argyn Bauyrzhanuly Kaidar
Keyword(s):  
Renewable Energy ◽  
Smart Grid ◽  
Wind Power ◽  
Wind Turbines ◽  
Power Plants ◽  
Power Grid ◽  
Renewable Energy Sources ◽  
Power Grids ◽  
Energy Sources ◽  
Wind Power Plants

The paper describes special aspects of using the wind power plants (wind turbines) in the power grid. The paper provides the classification and schematic presentation of AC wind turbines, analyzes the role, place and performance of wind power plants in Smart Grid systems with a large share of renewable energy sources. The authors also reviews a detailed analysis of existing AC wind turbines in this paper. Recommendations are given for how to enhance the wind power plants in smart grids in terms of reliability, and introduce the hardware used in the generation, conversion and interface systems into the existing power grid. After the wind power plants had been put online, the relevance of the Smart Grid concept for existing power grids was obvious. The execution of such projects is assumed to be financially costly, requires careful study, and development of flexible algorithms, but in some cases this may be the only approach. The analysis of using wind turbines shows that the structural configuration of wind power plants can be based on the principles known in the power engineering. The approaches may differ, not fundamentally, but in engineering considerations. it is necessary to point out that the method of controlling dual-power machines is quite comprehensive so that their wide use will face operational problems caused by the lack of highly professional specialists in electric drives. Therefore, it seems advisable to use square-cage asynchronous generators in wide applications. The paper shows that as the renewable energy sources are largely used in power grids, there is an issue of maintaining the power generation at a required level considering the variability of incoming wind energy. This results in the malfunctions in the operation of relay protection devices and emergency control automatics (RP and ECA), and the complicated control. Also, the standards of the CIS countries and regulatory documents miss the requirements for the wind turbine protections, taking into account their specialty causing the inefficient standard protective logic, which does not work correctly in a number of abnormal and emergency operating modes, and especially Smart Grid in power grids.

scholarly journals Is Nuclear Energy the Right Choice for Turkey?

2015 ◽  
Author(s):  
İsmail Güneş
Keyword(s):  
Risk Perceptions ◽  
Energy Demand ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Energy ◽  
Electric Energy ◽  
Governmental Organizations ◽  
Non Governmental Organizations ◽  
Turkish Economy ◽  
The Right

Developing countries need energy supply. Turkish economy is one of the most dynamic in the region. The consumption of electric power in the country is growing rapidly. But the price of electric energy in Turkey is one of the detrimental factors. Of all the neighboring countries, Turkey has one of the highest prices for electric energy. While some academicians and non-governmental organizations supported the Turkish government's plans for establishment of nuclear power plants in Turkey, some others opposed it. Due to increased energy demand, Turkey is continuing to explore the possibilities of introducing nuclear power. Gaining acceptance from local populations, however, may be problematic because nuclear power has a negative image and risk perceptions are complicated by a range of psychological and cultural factors. The main aim of this work is to investigate Turkey's nuclear preferences is it right. We will discusses the Akkuyu nuclear energy projects, market trends and analysis. In addition we will look at Turkey’s nuclear energy policies.

scholarly journals Prospects for green hydrogen production in the regions of Russia

2021 ◽  
Vol 265 ◽  
pp. 04011
Author(s):  
Liudmila Nefedova ◽  
Kirill Degtyarev ◽  
Sophia Kiseleva ◽  
Mikhail Berezkin
Keyword(s):  
Hydrogen Production ◽  
Wind Power ◽  
Co2 Emission ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Hydrogen Energy ◽  
Global Trends ◽  
Wind Power Plants ◽  
Regions Of Russia

The article discusses the possibilities of hydrogen production using renewable energy sources in Russia for energy storage and for export. The global trends in the development of green hydrogen energy reducing the CO2 emission are highlighted. The analysis of the potential for hydrogen production in regions of Russia using electricity from operating wind power plants (WPPs), as well as wind power projects planned for construction until 2024 has been carried out.

scholarly journals CRYOGENIC ACCUMULATION OF ELECTRICITY GENERATED USING RENEWABLE ENERGY SOURCES

2021 ◽  
pp. 22-27
Author(s):  
V.Ya. Braverman ◽  
B.K. Ilienko
Keyword(s):  
Renewable Energy ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Lithium Ion ◽  
Energy Sources ◽  
High Accumulation ◽  
Accumulation Coefficient ◽  
Standard Equipment ◽  
Storage Devices ◽  
Wind Power Plants

Possibilities and prospects of accumulation of the electric power generated on objects of renewable energy sources - solar and wind power plants, with use of cryogenic liquids are considered. A comparison of the three most common ways of accumulating electricity: using lithium-ion batteries, hydrogen, liquid air. According to the proposed technology, the efficiency of recovery of electricity from liquid air is from 54 to 70%. The developed technology is based on cryogenic and thermal accumulation and has a high accumulation coefficient. It is shown that energy storage in cryogenic storage devices is the cheapest today. The proposed technology can also be used to generate electricity from liquefied natural gas using standard equipment developed by industry. The technological scheme of the cryoaccumulating station is offered. Bibl. 10, Fig. 1, Table 1.

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