Thermoeconomic Cost

Querol, Enrique; Gonzalez-Regueral, Borja; Perez-Benedito, Jose Luis

doi:10.1007/978-1-4471-4622-3_5

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…The first one is a conventional technical and economic method that implies thermodynamic and economic factors to be analyzed successively (Tsatsaronis, 1999). The second one -the thermoeconomic method -is concentrated on thermodynamic and economic factors to be analyzed simultaneously (Querol et al, 2013;Ahmadi et al, 2014). These methods are radically different in the approach to resolving the optimization problem, and, therefore, they can be viewed as two independent techniques.…”

Section: Literature Reviewmentioning

confidence: 99%

Modeling Energy-Efficient Consumption at Industrial Enterprises

Todorov¹,

Volkova

Vlasov

et al. 2019

IJEEP

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A possibility to reduce costs incurred in both product manufacturing and energy consumption constitutes energy-efficient consumption at industrial enterprises. Manufacturers operating in various economic sectors adopt similar conceptual models of energy consumption, which allows developing a universal solution for modeling such processes. The central problem of modeling lies in finding an adequate objective function based on a sufficient set of parameters and characteristics of the efficiency of an enterprise's power circuit. The article justifies the performance indicators of industrial enterprises' power supply systems. The literature review proves that economic feasibility of energy efficiency is especially obvious if a massive modernization program is implemented. The estimates produced indicate that the largest portion of the potential energy savings is attributed to implementation of energy-saving projects in industrial buildings and other structures. We present a mathematical model designed to perform a comparative analysis of technical and economic features of two modernization scenarios of the heat and power supply system of an industrial enterprise circuit. Performing a simulation calculation based on performance aspects of Russian companies, the paper outlines the advantages of integrated modernization and analyzes the influence of various factors. The results reveal that there is an inverse correlation between specific heat consumption of buildings under thermal modernization and the length of the thermal network. As specific energy consumption in the thermal modernization scenario increases, the payback period for capital investments decreases. The effect of this dynamics is virtually proportional. Compared with total costs for various heat sources, the share of capital costs differs significantly; however, the share of running costs is dominant for all types of units. At the same time, the length of an enterprise's heat circuit weakly affects the payback period of capital costs.

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Section: Literature Reviewmentioning

confidence: 99%

Modeling Energy-Efficient Consumption at Industrial Enterprises

Todorov¹,

Volkova

Vlasov

et al. 2019

IJEEP

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Energy, exergy and economic analysis of offshore regasification systems

Naveiro

Gómez

Insua

et al. 2021

Intl J of Energy Research

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Energy, exergy and economic analysis are proposed herein to evaluate regasification systems in Floating Storage Regasification Units (FSRUs). Three regasification systems typical in these types of vessels are considered: seawater system, open loop propane system and closed loop water-glycol system. The energy and exergy analyses were performed using the Engineering Equation Solver (EES), while Suite AspenONE programmes were used for the economic assessment. The exergy analysis provides a better understanding of the components of physical exergy (thermal and mechanical exergy) in order to define an exergy efficiency applicable to any liquefied natural gas (LNG) regasification system or FSRU. The results obtained prove the seawater regasification system to be most efficient from an energy and exergy standpoint. The specific energy consumption and exergy efficiency for this system are 227.33 kJ/kg and 50.00%, respectively. On the other hand, the open loop propane regasification system is most cost-effective for an LNG price between 1.32 and 11 USD/MMBtu. The vast amounts of destroyed exergy in the regasification process of current systems was also demonstrated and hence the need to develop new, more efficient configurations that could exploit the cold energy of LNG.

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Thermoeconomic Cost

Cited by 2 publications

References 6 publications

Modeling Energy-Efficient Consumption at Industrial Enterprises

Modeling Energy-Efficient Consumption at Industrial Enterprises

Energy, exergy and economic analysis of offshore regasification systems

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