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Selection of a method of recycling ash and slag materials of Novocherkassk power plant (Novocherkassk GRES) using the Saaty analytic hierarchy process
https://doi.org/10.24223/1999-5555-2018-11-1-54-61
Abstract
Recycling of ash and slag produced by coal-fi red thermal power plants is a problem of all countries that use coal for energy purposes. In Russia, 20% of electric energy is produced by thermal power plants that burn coal. According to the ‘Energy Strategy of Russia for the period until 2030’ that part is not going to be reduced. Globally, ash dumps have accumulated more than 1.5 – 2 billion tons of ash and slag waste (ASW) to date. In Russia, ash dumps cover an area of almost 28 thousand hectares. At the same time, less than 8% of the annual ASW output is recycled and reused (30 to 50 million tons). The cost of the ASW handling is 5 – 7% of the total net price of the energy produced by thermal power plants. Currently there are several methods to recycle the ASW that consider their physical and chemical properties, peculiarities of forming and stockpiling, needs and possibilities for recycling technogenic raw materials. The market of special purpose machines off ers ranges of relevant equipment, new factories and companies ready to recycle ASW are being created. This leads to a multivariate problem of choosing the optimal way to recycle the waste. Since the 1970s, the analytic hierarchy process developed by the US mathematician T. Saaty has been used to solve problems of choosing a strategy out of a number of alternative options. This paper is devoted to application of the Saaty process to selection of a method for recycling ash and slag materials produced by Novocherkassk power plant.
About the Authors
N. V. Fedorova
Platov South State Polytechnic University (NPI)
Russian Federation
Russian Federation
N. N. Efimov
Platov South State Polytechnic University (NPI)
Russian Federation
Russian Federation
Yu. V. Fedorov
Southern Federal University
Russian Federation
Russian Federation
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Review
For citations:
Fedorova N.V., Efimov N.N., Fedorov Yu.V. Selection of a method of recycling ash and slag materials of Novocherkassk power plant (Novocherkassk GRES) using the Saaty analytic hierarchy process. Safety and Reliability of Power Industry. 2018;11(1):54-61. (In Russ.) https://doi.org/10.24223/1999-5555-2018-11-1-54-61
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