An exergy based approach to determine production cost and CO2 allocation for petroleum derived fuels

Silva, Júlio Augusto Mendes da; Flórez-Orrego, Daniel; Oliveira, Silvio de

doi:10.1016/j.energy.2014.02.022

Cited by 22 publications

(13 citation statements)

References 15 publications

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“…and Silva et al [27], with a cracking-coking scheme (See Appendix A.1). A specific exergoeconomy analysis encompassing the different production units of the petroleum refinery is used to calculate the exergy and CO 2 emission costs for the different products, including diesel and fuel oil used in other stages and for power generation.…”

Section: Petroleum and Natural Gas Production Routementioning

confidence: 98%

“…Analogously, "T" and "P" stand for the streams leaving the shuttle tanker and the pipeline transportation stage, respectively. Since almost 90% of Brazilian petroleum production is offshore, the petroleum is considered as extracted from the well of an offshore platform [27]. According to Nakashima et al [28], the non-renewable unit exergy costs for crude oil and natural gas after extraction and primary separation are 1.006 kJ/kJ and 1.025 kJ/kJ, respectively.…”

Section: Petroleum and Natural Gas Production Routementioning

confidence: 99%

“…By considering a travelling route of 800 km at a speed of 13 knots and a load capacity of 155,000 tons, as well as the offloading operations of platform and tanker, it is possible to calculate the exergy consumption of bunker fuel and the direct CO 2 emissions as 42.32 kJ/ (km.t Oil ) and 3.06 gCO 2 /(km.t Oil ) [27]. As bunker fuel is a processed fuel, the determination of its unit exergy costs and CO 2 emission cost requires an iterative calculation.…”

Section: Petroleum and Natural Gas Production Routementioning

confidence: 99%

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Renewable and non-renewable exergy costs and CO2 emissions in the production of fuels for Brazilian transportation sector

Flórez-Orrego

Silva

Velásquez

et al. 2015

Energy

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Section: Petroleum and Natural Gas Production Routementioning

confidence: 98%

Section: Petroleum and Natural Gas Production Routementioning

confidence: 99%

Section: Petroleum and Natural Gas Production Routementioning

confidence: 99%

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Renewable and non-renewable exergy costs and CO2 emissions in the production of fuels for Brazilian transportation sector

Flórez-Orrego

Silva

Velásquez

et al. 2015

Energy

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“…In this study, LPG cyclinders of 12 kg and 45 kg are considered for residential and industrial sectors, respectively. Also, the unit prices of them are taken from IPRAGAZ and AYGAZ companies .…”

Section: Energy Sources and Policies In Turkeymentioning

confidence: 99%

“…Silva et al . studied on exergy and carbon dioxide costs of the petroleum‐based fuels in Brazil using iterative procedure. The fuels were considered as gasoline, diesel, hydrotreated diesel, liquefied petroleum gas, gasoil and coke.…”

Section: Introductionmentioning

confidence: 99%

Energetic and exergetic carbon dioxide equivalents and prices of the energy sources for buildings in Turkey

Yildiz

Çalışkan

2017

Env Prog and Sustain Energy

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In this study, the energy and exergy prices of the coal, diesel oil, electricity, fuel oil, LPG, natural gas, air source heat pump (ASHP) and ground source heat pump (GSHP) along with their energetic and exergetic carbon dioxide (CO2) equivalents are evaluated basing on 12‐month data of 2016 (from January to December) for residential and industrial sectors in Turkey. Also, they are considered as district heating energy sources/fuels to heat the 100 m2 floor area in the residential and industrial applications. For the residential and industrial sectors, the minimum energy & exergy prices and energetic & exergetic CO2 equivalents are found for the GSHP; while the corresponding maximum energy and exergy rates are obtained for the LPG. Also, the quantity of fuel required for the desired period is calculated for each one of the energy sources. If the residential and industrial sectors are considered together, the minimum amount of required fuel is found for the LPG as 16.3 kg/°Ch; while the maximum one is found for the coal (for residential sector) to be 44.25 kg/°Ch. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 912–925, 2018

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Second law assessment of a Hoffmann kiln for the red ceramics industry

Carvalho

Silva

2018

J Braz. Soc. Mech. Sci. Eng.

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This study presents the results of a thermodynamic analysis carried out for a Hoffmann kiln installed in a red ceramics industry in Northeast Brazil. From the case study, it was evident that the red ceramics industry has not advanced significantly in the last decades or made any significant improvements in the manufacturing progresses. Exergy analysis revealed a high rate of exergy destruction; 99.46% of the firewood exergy was being destroyed through mixing of different chemical components and heat exchange among substances at different temperatures or due to heat transfer to the environment. A large amount of infiltrated air was revealed by the mass balance, which contributed to the low exergy efficiency. Negative effects on fuel consumption and lower temperatures of combustion air are also consequences of infiltration of cold air. Energy and exergy performance improvements are achievable through excess air elimination and exhaust preheating. On a monthly basis, elimination of infiltrated air could save approximately 27.6 m 3 of firewood, while the use of chimney gases to preheat the bricks could save 28.9 m 3 of firewood. Keywords Hoffmann kiln • Red ceramics • Exergy analysis • Energy analysis List of symbols c Specific heat (kJ kg −1 K −1) ex Specific exergy (kJ kg −1) Ex Exergy rate (kW) h Specific enthalpy (kJ kg −1) I Irreversibility rate (kW) M Mass flow (kg s −1) P Pressure (kPa) Q Heat (kW) s Specific entropy (kJ kg −1 K −1) T Temperature (K) V Velocity (m s −1) Greek γ Activity coefficient φ Chemical exergy correction factor ƞ Efficiency

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An exergy based approach to determine production cost and CO2 allocation for petroleum derived fuels

Cited by 22 publications

References 15 publications

Renewable and non-renewable exergy costs and CO2 emissions in the production of fuels for Brazilian transportation sector

Renewable and non-renewable exergy costs and CO2 emissions in the production of fuels for Brazilian transportation sector

Energetic and exergetic carbon dioxide equivalents and prices of the energy sources for buildings in Turkey

Second law assessment of a Hoffmann kiln for the red ceramics industry

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