Economic assessment of greenhouse gas reduction through low-grade waste heat recovery using organic Rankine cycle (ORC)

Imran, Muhammad; Park, Byung-Sik; Kim, Hyouck-Ju; Lee, Dong-Hyun; Usman, Muhammad

doi:10.1007/s12206-015-0147-5

Cited by 33 publications

(8 citation statements)

References 13 publications

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“…Although studies on the thermodynamic and economical assessment of Organic Rankine cycle are wide spread in literature (Fergani, Touil, & Morosuk, 2016;Hassoun & Dincer, 2015;Lecompte, Huisseune, van den Broek, Vanslambrouck, & De Paepe, 2015;Yang & Yeh, 2015), knowledge on the environmental impact of this technology under a life cycle perspective for energy production is still very limited. Some studies address the greenhouse gas reduction of the Organic Rankine cycle using solid waste in the far east (Imran, Park, Kim, Lee, & Usman, 2015;Sedpho, Sampattagul, Chaiyat, & Gheewala, 2017;Sununta, Sedpho, Gheewala, & Sampattagul, 2017). However, to the authors' knowledge no studies analysed the entire life cycle of an energy plant based on the ORC using biomass.…”

Section: Introductionmentioning

confidence: 99%

Life cycle assessment of a biomass CHP plant in UK: The Heathrow energy centre case

Tagliaferri

Evangelisti

Clift

et al. 2018

Chemical Engineering Research and Design

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Bioenergy has an important role to play in helping the UK meet its carbon target in 2050 and the European Renewable Energy Directive objectives for 2030. There are however uncertainties associated with the use of bioenergy, and whether or how much it contributes to greenhouse gas emission reductions. In order to help identifying environmental benefits and burdens associated with biomass use for energy production, an attributional life cycle assessment has been carried out of a biomass-fired CHP plant: the Heathrow Airport energy centre. This facility burns woodchips sourced from nearby forests providing 2 MWe of electricity and 8 MWth of thermal energy which delivers heat and cooling to Heathrow Terminal 2 and low temperature hot water to Terminal 5. A hot spot analysis is conducted to identify the process steps with the largest environmental impact, starting from the harvesting of the forest residue to the disposal of the boiler ash. A scenario analysis is performed to compare the impacts of the biomass plant against fossil alternatives and to identify which renewable energy sources, between biomass and MSW, should be prioritised for development and investment. The results show a reduction in GHG emissions from using biomass, with further benefits if the bottom ash is collected and re-used as a soil conditioner for landfarming or forestry. The paper also discusses the treatment of biogenic carbon in the assessment.

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Section: Introductionmentioning

confidence: 99%

Life cycle assessment of a biomass CHP plant in UK: The Heathrow energy centre case

Tagliaferri

Evangelisti

Clift

et al. 2018

Chemical Engineering Research and Design

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“…Utilization of ORC systems in waste heat recovery is also beneficial due to no interference with operator's main task and environmental friendly operation as no emission are added to the ambient [5]. Furthermore, installation of the ORC based system is helpful in the reduction of greenhouse gas emissions which would have been produced if fossil fuels were to be used for same power generation [6]. Recent studies on heat recovery in energy intensive industries, found that, in the most convenient considered scenario, up to about 20,000 GW h of thermal energy can be recovered and http://dx.doi.org/10.1016/j.enconman.2015.07.045 0196-8904/Ó 2015 Elsevier Ltd. All rights reserved.…”

Section: Introductionmentioning

confidence: 99%

“…Declaye et al [24] investigated a modified open drive scroll compressor with R245fa for CHP application and reported isentropic efficiency of expander 75.7%, with 2.1 kW shaft power and cycle efficiency of 8% with condenser temperatures above 50°C, heat source was hot air and multiple heat exchangers were used for evaporator network. Micro CHP systems were tested in similar ways for hermetic scroll compressor altered to operate in reverse as expander and the results presented that system could yield 6 [35]. A screw expander based heat recovery unit was reported with R123 for a maximum power output of 10.38 kW and 6.48 thermal efficiency.…”

Section: Introductionmentioning

confidence: 99%

Design and experimental investigation of a 1kW organic Rankine cycle system using R245fa as working fluid for low-grade waste heat recovery from steam

Usman

Imran

Lee

et al. 2015

Energy Conversion and Management

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133

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“…The waste heat from IC engines are low to medium grade energy, and one popular method of using this heat is to integrate a waste heat recovery (WHR) system at the bottom of the main engine system. The WHR system converts the exhaust or coolant heat into either mechanical rotation or electrical power, which increases the thermal efficiency and, as a result, reduces the fuel consumption of the engine (Glover et al, 2014;Imran et al, 2015). Within the WHR system, three technologies were considered: Thermoelectric Generator (TEG), Organic Rankine Cycle (ORC) and Phase Change Material (PCM) engine system; these can be found in the literature (Johansson and Söderström, 2014).…”

Section: Introductionmentioning

confidence: 99%

Dynamic model of supercritical Organic Rankine Cycle waste heat recovery system for internal combustion engine

Chowdhury

Nguyen

Thornhill

2017

Int.J Automot. Technol.

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ABSTRACTThe supercritical Organic Rankine Cycle (ORC) for the Waste Heat Recovery (WHR) from Internal Combustion (IC) engines has been a growing research area in recent years, driven by the aim to enhance the thermal efficiency of the ORC and engine. Simulation of a supercritical ORC-WHR system before a real-time application is important as high pressure in the system may lead to concerns about safety and availability of components. In the ORC-WHR system, the evaporator is the main contributor to thermal inertia of the system and is considered to be the critical component since the heat transfer of this device influences the efficiency of the system. Since the thermophysical properties of the fluid at supercritical pressures are dependent on temperature, it is necessary to consider the variations in properties of the working fluid. The well-known Finite Volume (FV) discretization method is generally used to take those property changes into account. However, a FV model of the evaporator in steady state condition cannot be used to predict the thermal inertia of the cycle when it is subjected to transient heat sources. In this paper, a dynamic FV model of the evaporator has been developed and integrated with other components in the ORC-WHR system. The stability and transient responses along with the performance of the ORC-WHR system for the transient heat source are investigated and are also included in this paper.

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Economic assessment of greenhouse gas reduction through low-grade waste heat recovery using organic Rankine cycle (ORC)

Cited by 33 publications

References 13 publications

Life cycle assessment of a biomass CHP plant in UK: The Heathrow energy centre case

Life cycle assessment of a biomass CHP plant in UK: The Heathrow energy centre case

Design and experimental investigation of a 1kW organic Rankine cycle system using R245fa as working fluid for low-grade waste heat recovery from steam

Dynamic model of supercritical Organic Rankine Cycle waste heat recovery system for internal combustion engine

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