An innovative techno-economic analysis for the selection of an integrated ejector system in the flare gas recovery of a refinery plant

Energy ◽  
2021 ◽  
Vol 228 ◽  
pp. 120594
Author(s):  
Soroush Eshaghi ◽  
Farzad Hamrang
Energy ◽  
2021 ◽  
Vol 220 ◽  
pp. 119661
Author(s):  
S. Taslimi Taleghani ◽  
M. Sorin ◽  
S. Gaboury

2020 ◽  
Vol 29 (1) ◽  
pp. 65
Author(s):  
José A. Gómez-Limón ◽  
Julia Martin-Ortega

Water is a natural resource that performs different functions in development processes (satisfaction of population’s basic needs, key element for ecosystems and landscapes, input in different economic activities, etc.). Taking into account this relevance and its features as an economic good, public authorities have carried out an important role as regulators. The last milestone in this path has been the approval of the Water Framework Directive. One of the most innovative points of this European rule is the use of economic analysis for the optimisation of different water uses. However, the development of the works done for the design of the new water management plans has shown several shortcomings regarding the economic analysis of water uses, the analysis of costs recovery for water services and the selection of meassures to reach these objectives. In this sense it is necessary to strength the nexus between the policy- making and academic spheres in order to support a more rigorous and effective use of the large scientific knowledge developed in this field.


2014 ◽  
Vol 35 (4) ◽  
pp. 83-95 ◽  
Author(s):  
Daniel Czaja ◽  
Tadeusz Chmielnak ◽  
Sebastian Lepszy

Abstract A thermodynamic and economic analysis of a GT10 gas turbine integrated with the air bottoming cycle is presented. The results are compared to commercially available combined cycle power plants based on the same gas turbine. The systems under analysis have a better chance of competing with steam bottoming cycle configurations in a small range of the power output capacity. The aim of the calculations is to determine the final cost of electricity generated by the gas turbine air bottoming cycle based on a 25 MW GT10 gas turbine with the exhaust gas mass flow rate of about 80 kg/s. The article shows the results of thermodynamic optimization of the selection of the technological structure of gas turbine air bottoming cycle and of a comparative economic analysis. Quantities are determined that have a decisive impact on the considered units profitability and competitiveness compared to the popular technology based on the steam bottoming cycle. The ultimate quantity that can be compared in the calculations is the cost of 1 MWh of electricity. It should be noted that the systems analyzed herein are power plants where electricity is the only generated product. The performed calculations do not take account of any other (potential) revenues from the sale of energy origin certificates. Keywords: Gas turbine air bottoming cycle, Air bottoming cycle, Gas turbine, GT10


1961 ◽  
Vol 83 (2) ◽  
pp. 177-182
Author(s):  
Horace E. Burrier

Mammoth Pool Project has a normal static head of 1100 ft which is within the operating range of either the impulse or reaction type hydraulic turbine. An economic analysis is made for using two 88,000 hp turbines, either of the multinozzle impulse or of the reaction type. Power generation and motoring operations of each type are evaluated with the final evaluation justifying the selection of two reaction turbines for this powerhouse.


2012 ◽  
Vol 610-613 ◽  
pp. 1930-1933 ◽  
Author(s):  
Xiao Gang Zhao ◽  
Yi Zhou ◽  
Jie Zheng ◽  
De Peng Gao ◽  
Lixin Zhao

With the rapid development of petroleum industry in China, it is an urgent to recover the oil gas generated in storage and transportation. In order to save the investment and to improve the recycling efficiency, this paper introduces Grey Matter Element Analysis (GMEA) to scientifically and rationally choose form the recovery projects. GMEA is the organic combination of Grey System Theory and Matter Element Theory, and it is applied to the selection of oil gas recovery projects. Though its application in the No.601 oil depot in Chongqing, China, it shows that it is rapid, simple and practical. Therefore, it can find further applications for optimization and decision-making in other relative fields.


2020 ◽  
Vol 26 (3) ◽  
pp. 65-73
Author(s):  
Branko Radičević ◽  
Mišo Bjelić ◽  
Mile Savković ◽  
Nebojša Zdravković ◽  
Aleksandra Petrović

The article presents the methodology for industrial noise control in the case of the dedusting system of a foundry. The developed methodology starts from the fact that noise protection is possible at the source of noise itself, on the paths of sound waves, and at the place of reception. The model for noise prediction is the basis of the methodology for solving specific examples, which consists of two parts, the source model and the noise propagation model. The result of the model is a noise field, based on noise map creation time. The activities in the procedure of noise protection are defined on a concrete example, and their interdependence is determined. Designing a noise protection system involves taking into account several functional, technological, and other limitations. Based on the required noise reduction of 15 dB in the nearest residential unit, variant noise protection solutions have been formed. The selection of the final noise protection solution was based on the techno-economic analysis.


2018 ◽  
Vol 2 (2) ◽  
pp. 49-57
Author(s):  
Agnieszka Bezat-Jarzebowska ◽  
WÅ‚odzimierz Rembisz ◽  
Agata Sielska

It can be assumed that the scope of agricultural policy and connected with its financial streams are not accidental. Selection of a particular, policy defines a mechanism in which the benefits and costs are combined. Such an effort of describing and ex plaining the mechanism was presented in the paper. We use the concept of a public choice model. Issues of including political (or admin istrative) interest in defining and shaping the policy are incorporated into the models of public choice. The authors assumed the rationality of decision makers and their goal to maximize their own utility. The analysis presented in the paper is some reference to one of the trends of political economy, according to which the emphasis is on the voters’ behaviour.   Keywords: Public choice, political rent, agricultural policy, political economic  analysis


2018 ◽  
pp. 367-421

Abstract.-This article attempts to demonstrate that the work of Piero Sraffa –especially Production of commodities by means of commodities-is the greatest revolution in economic analysis. The novelties introduced by the Italian economist, against all classical and marginalist traditions, such as considering the surplus of reproducible goods as the object of the economy, the intersectoral relations between goods and services on the one hand and processes on the other, the prices formed as a margin on costs, reduction of capital to dated work, the selection of techniques and the considerations about of the joint production support the above statements. To this we can add other more questionable or more or less significant as the standard system, its theory of fixed capital, the considerations on land and mines, the differentiation between basic and non-basic goods. Some of these analyzes have precedents or are contemporaries (physiocracy, Ricardo, Leontief), but the whole of them supposes this revolution made in the economic analysis and supposes for this the ideal model to be candidate to base any economic analysis worthy of such name. Keywords: Sraffa, economic analysis, theoritical revolution Resumen.-En este artículo se intenta demostrar que la obra de Piero Sraffa –en especial Producción de mercancías por medio de mercancías- supone la mayor revolución del análisis económico. Las novedades introducidas por el economista italiano contra toda tradición clásica y marginalista tales como considerar el excedente de los bienes reproducibles como objeto de la economía, las relaciones intersectoriales entre bienes y servicios por un lado y procesos por otro, los precios formados como un margen sobre los costes, la reducción del capital a trabajo fechado, la elección de las técnicas y las consideraciones sobre la producción conjunta avalan las afirmaciones anteriores. A ello le añadimos otras más discutibles o más o menos significativas como el sistema patrón, su teoría del capital fijo, las consideraciones sobre la tierra y las minas, la diferenciación entre bienes básicos y no básicos. Algunos de estos análisis tienen precedentes o son coetáneos (fisiocracia, Ricardo, Leontief), pero el conjunto de ellos supone esa revolución que hace del análisis económico de Sraffa como el modelo idóneo para ser candidato a fundamentar cualquier análisis económico digno de tal nombre. Palabras clave: Sraffa, análisis económico, revolución teórica


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