scholarly journals Coal energy systems of the future – innovative way of Ukraine’s energy development

2019 ◽  
Vol 109 ◽  
pp. 00126
Author(s):  
Mykola Zhykaliak ◽  
Viacheslav Lukinov

The state of implementation of the main indicators of the energy strategy of Ukraine for the period until 2035 has been analyzed and innovative prospects for the sustainable development of the national fuel and energy complex for the long term have been substantiated, taking into account the structurally unified nationwide energy supply system and the interests of future generations and the environment.

Author(s):  
Jekaterina Porubova ◽  
Gatis Bazbauers

Analysis of Long-Term Plan for Energy Supply System for Latvia that is 100% Based on the Use of Local Energy Resources The prices of fossil energy resources are expected to rise substantially in the future, therefore fossil energy resources might not be a feasible energy source for Latvia in the long term. The establishment of a fully self-sufficient energy supply system will require a significant transformation of the existing energy supply and transport infrastructure. Early planning of such a system makes it possible to shape development of the existing energy system in order to achieve that goal of a fully self-sufficient energy supply system. The paper shows a potential solution to establish an energy and transport system solely based on the domestic primary resources by the year 2050.


Energy Policy ◽  
2006 ◽  
Vol 34 (7) ◽  
pp. 793-803 ◽  
Author(s):  
Wolfram Krewitt ◽  
Joachim Nitsch ◽  
Manfred Fischedick ◽  
Martin Pehnt ◽  
Heiner Temming

Author(s):  
Dario Buoro ◽  
Alberto De Nardi ◽  
Piero Pinamonti ◽  
Mauro Reini

The paper presents the optimization of an energy supply system for an industrial area. The system is mainly composed of a district heating network (DHN), of a solar thermal plant with long term heat storage, of a set of combined heat and power units (CHP) and of additional thermal/cooling energy supply machines. The thermal vector can be produced by solar thermal modules, by fossil-fuel cogenerator or by conventional boilers. The optimization algorithm is based on a Mixed Integer Linear Programming (MILP) model and it has to determine the optimal structure of the energy system and the size of the components (solar field area, heat storage volume, machines sizes, etc.). The model allows to calculate the economical and environmental benefits of the solar thermal plant compared to the cogenerative production, as well as the share of the thermal demand covered by renewable energies. The aim of the paper is to identity the optimal energy production mix able to meet the user energy demands and furthermore how the solar thermal energy integration affects the optimal energy system configuration. The average costs of the heat produced for the users have been evaluated for different optimal configurations, and it emerges that the solution including some cogenerators located in strategic production units, the district heating network, the long term heat storage and a solar plant of proper size, allows achieving the lowest cost of the heat. Thus, the integrated solution turns out to be the best from both the economical and environmental point of view.


2013 ◽  
Vol 689 ◽  
pp. 453-458
Author(s):  
Lan Tang ◽  
Yu Lei Xing

The sustainable energy strategy is an important guarantee for the sustainable development of the Sino-Singapore (Tianjin) Eco-City (SSEC). Whether the energy strategy could be successful or not, it depend on that how much the energy will be consumed by building heating and cooling in SSEC. After has analyzed the technical characteristics of heating supply system, and also studied the optimization technologies of energy-saving, which are relevant to the temperature of heating supply, thermal station configuration, cooling mode, solar collectors and etc, this paper proposes a sound path to improve the energy efficiency and cost-effectiveness of the Eco-City in operation, so as to promote sustainable development.


2019 ◽  
Vol 102 ◽  
pp. 02001
Author(s):  
Evgeny Barakhtenko ◽  
Dmitry Sokolov ◽  
Veronica Tashlykova

The conversion of existing energy systems to intelligent integrated energy systems can happen only if economic benefits due to introduction of the intelligent integrated energy systems will exceed required level of investments. Thus, it is necessary for every optimal design energy systems problem according to the purposes of the study to determine various aspects of equipment configuration, investment and a proposed unit commitment on a case-by-case basis. The studies, taking under consideration energy efficiency of renewable energy units, are particularly important as environmental safety standards are increasing. In the paper optimal design of prosumer energy supply system problem in the intelligent integrated energy system was investigated. For this purpose a super structure for an energy supply system includes different generating capacities with relevant power range. The superstructure for prosumer energy supply system consists of an electric boiler, a gas-fired boiler, a solar photo-voltaic, a solar heating system and a gas-fired CHP. An ability of district energy system to receive the excess generating energy is restricted by the constraints. The heat and electricity tariffs and the received to district energy supply system energy constraints are varying according to time period. As a result of this study, cost-effectiveness analysis of chosen equipment configuration was undertaken.


2020 ◽  
Vol 26 (1) ◽  
pp. 232-237
Author(s):  
Mircea-Sebastian Mancia ◽  
Aurora Mancia ◽  
Gabriela A. Popoviciu ◽  
Liliana Paina

AbstractThe EU, founded about 70 years ago (1957), to ensure the peace of Europe and the entire world; today, another mission of the European Union is “the well-being and survival of our citizens” (Fr. Timmermans - European Commission COM22 30.01.2019). Sustainable development aims to improve the life of citizens of Europe through lasting economic growth while setting the priorities related to this desire. In 2015, the UN General Meeting adopted the 2030 Agenda and in 2017 the “Declaration from Rome of the leaders of the European states that are members of the European Union” was signed. Through these documents, the necessary and obligatory steps have been established to protect the planet and to ensure the needs of future generations. The objectives set are for the long-term modification of economic development, respecting, and protecting the resources and the environment in the context of future sustainable development. Being UN and EU member and being signed by the Romanian government of the “2030 Agenda”, it launched in November 2018 “The National Strategy for the Sustainable Development of Romania 2030”, which takes into account the present needs and those of future generations, focusing on the respect for the citizen.


Author(s):  
Rita Parker

Transnational challenges have added a level of complexity to international and national security as the geopolitical landscape adjusts and responds. Such challenges transcend individual borders to involve other nation-states regardless of whether they are willing or unwilling actors. One such transnational challenge is energy security and the resilience of the energy supply system. While energy is generally considered as a national issue associated with meeting the internal needs of a civil society, it is also part of a wider dynamic global system that is vulnerable to a number of factors and is a major influence in framing foreign policy stances. This paper addresses the linkage between energy security and foreign policy at both the state and international levels. It does this by examining some of the issues and challenges associated with energy as a transnational security issue and the ways it affects relations between nation-states. The focus of this paper is on petroleum-based fuel and gas, and on the security and resilience of the energy supply system. Given the ongoing dependence on these traditional forms of energy, it is argued that these energy systems need to be resilient so that, in turn, civil society is resilient and human security is enhanced. The paper explores some of the issues for the European Union (EU) including the resilience of its associated energy systems. The paper also considers issues that enhance or inhibit the resilience of the energy system with particular reference to the EU.


2008 ◽  
Vol 128 (1) ◽  
pp. 32-38 ◽  
Author(s):  
Takaya Yamamoto ◽  
Tomihiro Takano ◽  
Yoshiyuki Takuma ◽  
Makoto Inoue ◽  
Gen Arao

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