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  • Optimal decisions on investments in urban energy cogeneration plants - extended MRP and fuzzy approach to the stochastic systems [Elektronski vir]
    Kovačić, Danijel ; Usenik, Janez, 1949- ; Bogataj, Marija, 1950-
    The issue of Municipal Solid Waste (MSW) management is an ever increasing problem, especially because solid waste from industry and other Closed-loop Supply Chain Waste (CLSCW) is included in MSW. ... Dealing with very large amounts of MSW per capita is a global problem, forcing municipalities and industry to develop new systemic approaches and technological solutions. One of the well-accepted solutions is energy recovery from MSW and CLSCW. The Waste-to-Energy (WTE) policy significantly reduces the volume of waste disposed in landfills, influences the reduction of total green houseg as emissions, and gives the potential for generating electricity or developing co-generation of electricity and heat. Never the less, there are still high uncertainties regarding the optimal decision on investments in cogeneration plants. In this paper we shall not discuss the technical characteristics of plants. Our focus is on the choices regarding investment costs and efficiency which also depend on the uncertain demand for supply system products, which is in correlation with the quantity of waste. In general, there covered items must be distributed from the recycling facility back to production, and waste items must be sent to landfills, for which taxes and fees have to be paid. Alternatively, waste items can be reversibly use data source of energy with several technological methods - most commonly the burning process. The uncertain energy efficiency of cogeneration plants and the uncertainty of demand appear simultaneously. In this paper, the methods for supporting decisions in optimal investment orc o-investment in the urban cogeneration plantin case of joint actions of local authorities responsible for MSW and CLSC managers is considered when energy efficiency is normally distributed or fuzzy,at volatile demand, which has never been studied jointly. Extended MRP theoretical results are compared to the solutions of fuzzy reasoning. We show how MRP theory can be used for evaluating the investments, but also how fuzzy reasoning is losing its potential in case of lower demand.
    Source: International journal of production economics [Elektronski vir]. - ISSN 1873-7579 (Vol. 183, part B, jan. 2017, str. 583-595)
    Type of material - e-article ; adult, serious
    Publish date - 2017
    Language - english
    COBISS.SI-ID - 1024225372

    Link(s):

    http://www.sciencedirect.com/science/article/pii/S0925527316000608

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