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Utilization of Autonomous Surface Vessel (ASV) technology on hydrographic surveys in the Arctic result in significant time savings to field operations while simultaneously improving safety and providing more capability.
At present we are facing a scenario characterized by the increasing exhaustion of the traditional sources of energy. The use of the Renewable Sources of Energy in Cuba is insufficient, since in some cases there is a lack of technologies, procedures and methods adjusted to the Cuban context for its effective use of this type of technology. A research related to these topics themes are carried out at...
Rejuvenation and updating of a power generation technology is to make it more efficient, more reliable, and more environmentally friendly. Those conditions encourage the rejuvenation of Pesanggaran Bali power plant. Currently the power plant uses a diesel engine which emit a 978,448 ton of CO2 annually. The plan is to replace the diesel engine with gas engine with capacity of200 MW to generate electricity...
The article is devoted to the long-term improvement of the Russian gas industry development model for the period of up to 2035. New approaches to forecasting gas production at major fields, transportation of pipeline gas and spot market gas purchases are being updated.
In the worlds need for renewable energies environmental friendly solution, biogas production and usage has become one major interest topic which needs adjustments and research for every application domain. The tests carried out in a digester with anaerobic fermentation of animal protein revealed a gas which mainly contains CH4 and CO2. After an initial research of the biogas combustion using a burner...
The energy supplier analyzed in this paper has 2 Rolls-Royce engines (M1&M2), running on natural gas, and producing 6.8 MWe of power and 5.6 MWth of heat each. In order to cover the heat demand during winter, the plant functions with both M1&M2 and one of the two hot water boilers (HB), the new one 58MWt or the old one 29MWt. One major problem consists in large and often variations of the...
In the last decade, Romania began a reorganization process in the municipal solid waste (MSW) sector considering the new EU principles regarding the MSW prevention, reuse and recycling before final disposal. The paper present the results of a comparison of three alternative scenarios for energy recovery (ER) from municipal solid waste in Romania considering landfilling, separate collection, mechanical-biological...
Survey of droplets size and distributions in any two-phase systems play an essential role for evaluation of treatment process functional pattern. Regarding to the importance of agitation speed and dispersed phase volume fraction, a novel practical study conducted on removal of Dibenzothiophene (DBT) contaminant from toluene as a model fuel via oxidative desulfurization (ODS) process which is enhanced...
Domestic biomass fuel combustion can become significantly polluting if the process does not develop properly; problems related to exhaust gases' emissions can actually occur in spite of the renewable nature of the fuel. The present article analyses the key questions that influence the quality of the biomass combustion process. Concerning this, high quality and controlled biomass and a technological...
Addressing the conflicts of continuous ironmaking and intermittent steelmaking, the steel production process is always hard to be regarded as a whole. Most of the researches focus on the ironmaking process which is a complicated nonlinear system characterized by large scale, big hysteresis, strong distribution and random. In order to solve these difficulties, many researchers tried to propose models...
This paper presents an economic operation considered renewable energy which is optimized using thunderstorm algorithm. The problem is constrained by an emission standard and various technical limits implemented on the 62-bus system model. Simulations showed that the renewable energy inclusion penetrates to the unit commitment of generating units with strongly approach for the computational solution...
Vehicle-to-grid (V2G) technology has drawn great interest in the recent years and its efficiency depends on scheduling of charging process of plug-in electric vehicles (PEVs) as small portable power plants in smart parking lots. On the other hand, active shift from centralized to decentralized power generation and environmental concerns have caused an increase in the utilization of combined heat and...
The article presents the ecological problems of utilization of spent activated sludge, which is a waste after biological treatment of wastewater and ways of their solution. A literature review devoted to modern methods of recycling and recycling of spent activated sludge is presented. The methods of composting of spent activated sludge, advantages and disadvantages of field composting of spent activated...
This study focuses on one of the main concepts regarding strategies to be adopted to reach the European policy targets, regarding Green House Gas emissions (GHG). The subsidization of renewable energy sources showed its limits, due to the fact that such power plants can create several problems to the power grids they are connected to, and for this reason the implementation of new or more advanced...
The South African industrial sector is under significant financial pressure and need to reduce production costs to remain competitive in the global and local market. Some steel plants use reheating furnaces to reheat materials before hot rolling. These furnaces use industrial fuel gases as an energy source. Process by-product and purchased gases can be used as fuel. Inefficiencies in gas distribution...
The Cretan power system is the largest autonomous power system in Greece, and it consumes around 5% of the total Greek electricity demand. It contains a large number of conventional power stations that are combined with significant installed capacity of wind farms and photovoltaics. This paper is evaluating the effect of a large wind-hydro hybrid power station installation in this system. The analysis...
In this paper we present a comparison, based on pollutant emissions and fuel consumptions, of two alternative hypotheses for private cars renewal in a large urban area. One of the two scenarios includes a partial replacement of the internal combustion engine vehicles with the electric ones. Following a data-driven approach, we calculate well-to-wheel emissions and consumption using real traffic patterns...
Electrification is widely considered as a viable strategy for reducing the negative environmental impacts of the energy system. Following this strategy, most attention has been paid to electrification of road transportation, i.e., electric vehicles. In addition, substantial potentials could be exploited in the electrification of offshore oil and gas platforms, as an alternative to on-site gas turbines...
Energy systems are evolving rapidly around the world, driven mainly by CO2-e reduction targets. This has led to opportunities for integrated low carbon electricity-and-fuel systems founded on large scale “Power-to-Hydrogen, Hydrogen-to-X” (PtH-HtX). Power-to-Hydrogen (PtH) refers to large scale electrolysis. Hydrogen-to-X (HtX) refers to a range of high value products and services. If these pathways...
This paper presents a data analysis of an islanded diesel-PV-battery system, placed in Somalia. Operation of each generator is observed, concerning the most relevant performance indicators. Analysis is carried out during the first 11 months of operation, from November 2015 to September 2016. Investigations are divided into two periods, according to a significant load variation due to the connection...
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