Thermodynamic Analysis of ORC Configurations Used for WHR from a Turbocharged Diesel Engine

Apostol, Valentin; Pop, Horațiu; Dobrovicescu, Alexandru; Prisecaru, Tudor; Alexandru, Ana; Prisecaru, Mălina

doi:10.1016/j.proeng.2015.01.402

Cited by 36 publications

(14 citation statements)

References 12 publications

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“…Modelling engine's combustion process is important for the more efficient use of alkylate petrol. Furthermore, it is crucial to study how alkylate petrol impacts the thermal process and waste heat of the engine, which could be used for the more convenient use of hand tools [21,22]. …”

Section: Discussionmentioning

confidence: 99%

The Difference Between the Physical Properties of Petrol and Alkylate Petrol and Impact on the Exhaust Gas of a Two-Stroke Engine

Ilves¹,

Küüt²,

Birzietis³

et al. 2016

DAAAM Proceedings

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The use of a two-stroke engine as the power unit on different hand tools is a widespread tendency. In case of the particular hand tools, it is crucial to keep the exhaust gas emission of the engine as low as possible. To reduce the exhaust gas emission of a two-stroke engine, alkylate petrol has been worked out. According to manufacturer's data, using alkylate petrol in a two-stroke engine improves the combustion of the air-fuel mixture, thus, the proportion of dangerous compounds in the engine exhaust gas also decreases. However, it is not exactly clear how much the proportion of dangerous compounds, e.g. carbon monoxide, in the exhaust gas decreases. The aim of the given article is to study the exhaust gas emission during the combustion of alkylate petrol and outline the proportion of dangerous compounds at different loads of a two-stroke engine. The results indicate that when alkylate petrol is used, the proportion of carbon monoxide in the exhaust gas increases.

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Section: Discussionmentioning

confidence: 99%

The Difference Between the Physical Properties of Petrol and Alkylate Petrol and Impact on the Exhaust Gas of a Two-Stroke Engine

Ilves¹,

Küüt²,

Birzietis³

et al. 2016

DAAAM Proceedings

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“…Depending on the practicality and technical capacity to use and manage operating and maintenance costs, the configuration and systemic form of the cycle in a constructed ORC unit may vary [16]. In general, the variation in equipment configurations or residual heat utilization forms from ORC is very varied, and many researchers still develop configurations to improve the efficiency and cost of an ORC plant.…”

Section: Equipment Architecturementioning

confidence: 99%

Technological evolution of ORC systems to produce energy from residual sources

Zarante¹,

Chamorro²,

Polo³

2018

ces

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This document presents a review of the technological evolution of power generation from residual thermal sources as contemplated by new technologies in ORC (Organic Rankine Cycle) systems, to seek greater efficiencies and lower costs per unit of kw generated. These systems have been improving their thermodynamic performance because of the research regarding the development of their components and the improvements in current applications, since this allows an additional output power generation. The scientific development challenges associated with ORC technology such as workflow, equipment architecture, ORC expanders and applications of these technologies are discussed. It was also found that R245fa is one of the best working fluids in ORC technology because of its low environmental impact but its impact on global warming is still considered an impediment and therefore other alternatives such as the R1233zd are being investigated. Regarding commercial applications of this technology, it was found that there are facilities at a global level that use geothermal energy as a source of heat, followed using residual heat and to a lesser extent biomass.

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“…Once the technical aspects are simpler in case of using the turbocompund method (designing a new turbine with the natural result of influencing the engine operation), more problems are to occur by applying the Rankine Cycle release. Authors of paper [3] identify no less than 6 different ways to implement such an energy recovery system. Additionally, they are analyzing 8 different types of cycle working fluids.…”

Section: Introductionmentioning

confidence: 99%

Waste Heat Recovery for a Diesel Tractor Engine: A Comparison Study

Radu¹,

Racovitza²

2019

E3S Web Conf.

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One of the major concerns of nowadays is related to the Waste Heat Recovery (WHR) from the thermal engines, especially regarding the high rating power engines. For Diesel tractor engines, long time operated at high loads, the amount of the saved energy is linked to a significant fuel economy. The proposed study is based on the AMESIM simulation code and performs a comparison between two methods of heat recovery: the one using a supplementary turbine (turbo-compound method) and that using an Organic Rankine Cycle (ORC). The tested engine is an IVECO Cursor 10 Diesel engine type, equipping CASE tractors designed for agricultural activities. The energy savings provided by the engine exhaust gas heat recovery could be further used in supplementing the engine traction, either to be delivered to the auxiliary systems, leading in both cases to a decrease of the fuel consumption.

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Thermodynamic Analysis of ORC Configurations Used for WHR from a Turbocharged Diesel Engine

Cited by 36 publications

References 12 publications

The Difference Between the Physical Properties of Petrol and Alkylate Petrol and Impact on the Exhaust Gas of a Two-Stroke Engine

The Difference Between the Physical Properties of Petrol and Alkylate Petrol and Impact on the Exhaust Gas of a Two-Stroke Engine

Technological evolution of ORC systems to produce energy from residual sources

Waste Heat Recovery for a Diesel Tractor Engine: A Comparison Study

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