Thermoeconomic analysis method for optimization of combined heat and power systems—part II

Silveira, José Luz; Tuna, Celso Eduardo

doi:10.1016/j.pecs.2003.06.001

Cited by 52 publications

(34 citation statements)

References 3 publications

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“…The application field is the evaluation of utility cost as products or supplies of production plants, the energy cost between process and operations of an energy converter. These costs are applicable in feasibility studies, in investment decisions, on comparing alternative techniques and operating conditions, in a cost-effective section of equipment during an installation, an exchange or expansion of an energy system [4].…”

Section: Introductionmentioning

confidence: 99%

Exergoeconomic analysis of a combined heat and power (CHP) system

Ballı

Aras

Hepbaşlı

2008

Int. J. Energy Res.

108

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SUMMARYThis study deals with exergoeconomic analysis of a combined heat and power (CHP) system along its main components installed in Eskisehir City of Turkey. Quantitative exergy cost balance for each component and the whole CHP system is considered, while exergy cost generation within the system is determined. The exergetic efficiency of the CHP system is obtained to be 38.33% with 51 475:90 kW electrical power and the maximum exergy consumption between the components of the CHP system is found to be 51 878:82 kW in the combustion chamber. On the other hand, the exergoeconomic analysis results indicate that the unit exergy cost of electrical power produced by the CHP system accounts for 18:51 US$ GW À1 : This study demonstrates that exergoeconomic analysis can provide extra information than exergy analysis, and the results from exergoeconomic analysis provide cost-based information, suggesting potential locations for the CHP system improvement.

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Section: Introductionmentioning

confidence: 99%

Exergoeconomic analysis of a combined heat and power (CHP) system

Ballı

Aras

Hepbaşlı

2008

Int. J. Energy Res.

108

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“…Actual annual benefit method: The Actual annual benefit (AAB) has been presented by Silveira and Tuna [11] for the first time. The following equation which is based on the equations presented by Silveira and Tuna is used to calculate AAB:…”

Section: Methodsmentioning

confidence: 99%

Economical Investigation of ICECHP Using Gasohol-A Case Study for Iran

Baratian¹,

Ghobadian²,

Ameri³

2008

American J. of Applied Sciences

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Abstract:Energy is one of the most important factors in strategic planning throughout the world and can be considered as a dominant driving force for the industry and world economy. Biofuels development and applications specially in the form of Combined Heat and Power using Internal Combustion Engine (ICECHP) is wide-spreading which is the subject matter of the present paper as its economical investigation is concerned. The followed methodology is based on electricity direct pricing and actual annual benefit methods considering producers and consumers viewpoints. This investigation revealed that in the case of electricity direct pricing method, for the consumers the use of bioethanolgasoline blends (Gasohol) and ICE for CHP is uneconomical in all cases, and for the producers, E5 and E10 is economical. For the consumers, the case can be economical too with the grant of subsidy similar to the oil products. It can be concluded from the finding of the optimization process in the case of actual annual benefit method that market electricity price must be equal to its cost price and the subsidy must be devoted to the fuel instead of devoting it to the electricity. In this case, E5 is economical for the consumers and up to E15 is economical as for as producer is concerned.

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“…Este análisis es aplicable en las decisiones de inversión [7]. Según Silveira y Tuna [8], el objetivo del análisis económico es evaluar el costo de la energía producida por el sistema de cogeneración (electricidad y vapor). En estos contextos, varios estudios se han reportado en la literatura especializada.…”

Section: Introductionunclassified

Análisis energético, exergético y económico de un sistema de cogeneración: Caso para una planta azucarera de San Pablo

Llerena

2018

ings

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Los sistemas de cogeneración, debido a las numerosas ventajas que presentan, se han convertido en una tecnología bastante utilizada para la generación de energía. En estos procesos, la eficiencia es relativamente alta y las emisiones de gases de efecto invernadero son bajas.En este trabajo se realiza un estudio técnico y económico de un sistema de cogeneración para una planta azucarera en San Pablo. La primera y segunda ley de la termodinámica son aplicadas para el análisis técnico. Los costos de producción de la energía eléctrica y vapor producido son determinados en el análisis económico. En el dimensionamiento se analizan cuatro turbinas de gas que están en paridad térmica con el proceso. Los resultados muestran que la planta tiene una capacidad para producir \linebreak[4]148 MW de electricidad y 147 MW de vapor. Por un lado el análisis energético revela que la eficiencia de la planta es de 67 \%, mientras que el análisis exergético muestra que esta eficiencia es de 56 \%. Los resultados del análisis económico expresan que los precios de la electricidad y vapor producido son de 0,105 y 0,068 US\$/kWh, respectivamente.

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Thermoeconomic analysis method for optimization of combined heat and power systems—part II

Cited by 52 publications

References 3 publications

Exergoeconomic analysis of a combined heat and power (CHP) system

Exergoeconomic analysis of a combined heat and power (CHP) system

Economical Investigation of ICECHP Using Gasohol-A Case Study for Iran

Análisis energético, exergético y económico de un sistema de cogeneración: Caso para una planta azucarera de San Pablo

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