Abstract. Energy efficiency plays a key role in the development of modern socio-economic systems, such as cities. Energy efficiency can be achieved through creation and development of eco-industrial parks. This article describes the concept of such parks and their peculiar characteristics and provides an overview of research literature on their development, energy efficiency and competitiveness of their resident enterprises. Performance of eco-industrial parks can be evaluated by applying a set of indicators, which demonstrate the competitiveness of park residents. This system of indicators can be used to model the management of ecoindustrial park development. This article also describes a methodological approach to evaluate competitiveness of resident enterprises: the integral index of competitiveness, which synthesizes their current and prospective competitiveness. Comparative analysis (conducted by applying 'PATTERN' method, Planning Assistance Through Technical Evaluation of Relevance Numbers) also takes into account specific indicators of residents' competitiveness. This research uses the methods of static modelling to create an algorithm for building a model which establishes the correlation between the indicators of the park's performance and the level of its residents' competitiveness. The proposed model was applied to develop a program of management for eco-industrial park 'Tagil'.
Assessment of competitiveness is an objective need of every business entity seeking to maintain or improve their own competitive position and make informed management decisions. The authors propose to classify the diversity of methods of assessment of the competitiveness of the enterprise through three main approaches: graphic, factor and value. In order to identify the advantages and disadvantages of each of the approaches described by the authors, the content of the main methods used in the study was analyzed. It is concluded that there is no universal tool for assessing the competitiveness of the enterprise, which is due to, on the one hand, the limited reliability and low estimates obtained by using matrix and product methods, and on the other hand, the complexity and cost of the estimates using existing multivariate models.
The article describes the particular qualities of application of a cylindrical steel tanks' and base foundation technical inspection method without removal of a protective covering. The model is formed and the basic parameters of an estimation of economic efficiency of carrying out of diagnostics are determined. The economic efficiency of application of the modern method of vertical steel tank examination is estimated. The high economic efficiency of the new technological method is substantiated in comparison with the traditional method. It is established that the advantage of using the innovative diagnostic method in comparison with the traditional method is fully manifested when it is necessary to maintain a large fleet of tanks. It is calculated that, given the design parameters, the savings in the use of the method proposed by the authors in the long term are 1773.2 million rubles compared with traditional. The use of a new technological method - the technology of diagnosing vertical steel tanks without removing the protective coating, allows to reduce the total cost of conducting diagnostics with a discount of 8.7 times. Dependences were obtained of the discounted volume of expenses on acquisition of the equipment and the subsequent diagnostics of vertical steel tanks on the operation time of the vertical steel tanks.
The article features the application of a method of displacement during major repairs of vertical steel tank bases. Premises on the effectiveness of the application of the displacement method for repairing the bases of vertical steel tanks in comparison with the traditional method of repair are put forward. The comparative characteristics of the displacement method and the traditional method of major repairs of the bases of vertical steel tanks are given. The authors proposed a method of temporary displacement of vertical steel tanks, which is new for Russian practice of major repairs. An algorithm for calculating the cost-effectiveness of repairing the bases of VSTs is developed both by the traditional method and by the displacement method proposed by the authors. Technical solutions are substantiated considering calculating the stress-strain state of tank structures under nonaxisymmetric loading. A model is formed and basic parameters of the economic efficiency evaluation of major repairs of the vertical steel tank base are determined. Evaluation of the economic efficiency of major repair procedures and further maintenance of the repaired tank bases is carried out. A high economic efficiency of the new technological method of displacement is proved in comparison with the traditional method.
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