A Numerical Model for Predicting Dynamic Performance of Biomass-Integrated Organic Rankine Cycle, ORC, System for Electricity Generation

Sami, Samuel M.

doi:10.11648/j.ajee.20160403.11

Cited by 3 publications

(8 citation statements)

References 7 publications

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“…56 The use of biofuels considers the efficiency of generation technologies for reaching a trade-off between the cost of treatment and production of fuel and the environmental benefits and accessibility of resources. [42][43][44]46,47 The primary considerations for using fossil fuels, as was mentioned above, are the costs and availability of the resources. However, it is possible to improve the configuration of the system, selecting proper technologies, 57,53 for operating more efficient units.…”

Section: ■ Technological Frameworkmentioning

confidence: 99%

“…The current lack of concrete carbon policies has led us to use as reference the ones implemented on developed countries presenting the trends and perspectives of implementation of DG. 44,100 The incentives for implementing energy projects have been addressed considering the public 88,97,101 and mixed founding. 98 The closeness and integration of European developing countries to the EU have stimulated the approaches for migration on the economic energy conditions.…”

Section: ■ Technological Frameworkmentioning

confidence: 99%

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Perspectives for Implementing Distributed Generation in Developing Countries through Modeling Techniques

Fuentes-Cortés

Ponce-Ortega

2017

ACS Sustainable Chem. Eng.

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This paper addresses the status, problems, and development of distributed energy resources in developing countries. We have focused on the projects in Latin America, Asia, eastern Europe, and North Africa. The problems for developing new energy technologies are linked to particular conditions, such as regulated markets, energy policies, urban planning and development, low-income communities, environmental impact, and economic instability. We are presenting a perspective based on the literature review of the different proposals for solving the particular problems associated with the implementation of energy projects under the modeling perspective, highlighting the residential environment and domestic applications. Five different fields used on modeling approaches are included in the review: technologic development, economic performance, environmental impact, social context, and modeling proposals. We have identified the addressed problems, the applied modeling techniques, the trends shown by the results presented, and the expectations for future works in the field of distributed energy generation.

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Section: ■ Technological Frameworkmentioning

confidence: 99%

Section: ■ Technological Frameworkmentioning

confidence: 99%

Perspectives for Implementing Distributed Generation in Developing Countries through Modeling Techniques

Fuentes-Cortés

Ponce-Ortega

2017

ACS Sustainable Chem. Eng.

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“…Generally, in most CSP plants, the heat transfer fluid is thermal oil. This heat transfer fluid goes to a conventional steam turbine, using water as coolant or an Organic was reported in the literature by Saloux et al [21], Sami [22,23], and Jo-ao [24] where low-and highgrade waste heat is converted into power.…”

Section: Introductionmentioning

confidence: 99%

“…2019, 2, 0022 3 of 26 the most efficient organic fluid, having the highest thermal and exergetic efficiency, and the lowest pumping power when compared to other organic fluids. Finally, thermodynamic modeling of ORC was reported in the literature by Saloux et al [21], Sami [22,23], and Jo-ao [24] where low-and high-grade waste heat is converted into power.In this paper, we present a numerical model to simulate and study the behavior of heat transfer fluid with different nanofluids circulating in the parabolic trough solar collector loop to drive an Organic Rankine Cycle with patent quaternary refrigerant mixture, under different solar radiations. The model is based upon the mass and energy equations written for the heat transfer fluid with nanofluids.…”

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confidence: 99%

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Analysis of Nanofluids Behavior in Concentrated Solar Power Collectors with Organic Rankine Cycle

Sami

2019

ASI

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In this paper, the performance of nanofluids in a Parabolic Trough Concentrating Solar Collector (CSP)-based power generation plant, an Organic Rankine Cycle (ORC), and a Thermal Energy Storage (TES) system is studied. This study is intended to investigate the enhancement effect and characteristics of nanofluids Al 2 O 3 , CuO, Fe 3 O 4 and SiO 2 in integrated concentrating solar power (CSP) with ORC, and TES under different solar radiations, angles of incidence, and different nanofluid concentrations. The refrigerant mixture used in the ORC loop to enhance the ORC efficiency is an environmentally sound quaternary mixture composed of R134a, R245fa, R125, R236fa. The results showed that the power absorbed, and power collected by the CSP collector and thermal energy stored in the storage tank are enhanced with the increase of the solar radiation. It was also found that the CSP hybrid system efficiency has been enhanced mainly by the increase of the solar radiation and higher nanofluid concentrations over the thermal oil as base fluid. Also, the study concludes that the nanofluid CuO outperforms the other nanofluids-Al 2 O 3 , Fe 3 O 4 and SiO 2 -and has the highest CSP solar collector performance compared to the other nanofluids and thermal oil base fluid under study at similar conditions. Finally, it was found that the model's prediction compares fairly with data reported in the literature; however, some discrepancies exist between the model's prediction and the experimental data.Appl. Syst. Innov. 2019, 2, 0022 2 of 26 Rankine Turbine generator (ORC) using refrigerant, where electricity is generated [1,7]. Thermal energy storage is an integral part of a CSP plant in order to overcome the intermittency of solar radiations for continuous production of power during the night and on cloudy days [8,9].Nanofluid is a mixture of an HTF and nanoparticles and can be used to enhance the thermo-physical properties of HTF. Recently, it was proposed in references [10-18] to nanofluids as a heat transfer fluid in solar power collectors, and to investigate their optical properties, which are essential to the phenomenon of direct energy absorption. The results reported in these references showed that the maximum allowable temperature at which the absorption coefficient does not change significantly is as high as 500 • C. This makes metal-oxide nanoparticles suitable for use at very high temperatures in heat transfer fluids in CSP plants.Heat transfer fluids with nanoparticles provide significant benefits in CSP solar power plants because of the enhancement of heat transfer, thermodynamic and thermophysical properties in absorbing heat induced by solar radiation. Enhanced heat transfer by the use nanofluids yields improvement to the receiver performance and absorption efficiency that may reduce the number of CSP collectors required to produce power using the basis fluid as thermal oil [28][29][30][31][32][33][34][35].It has been shown theoretically and experimentally that, in low-temperature solar collectors at around 100 • C, ef...

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Identification of ORC unit operation in biomass-fired cogeneration system

Kalina

Świerzewski

2019

Renewable Energy

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A Numerical Model for Predicting Dynamic Performance of Biomass-Integrated Organic Rankine Cycle, ORC, System for Electricity Generation

Cited by 3 publications

References 7 publications

Perspectives for Implementing Distributed Generation in Developing Countries through Modeling Techniques

Perspectives for Implementing Distributed Generation in Developing Countries through Modeling Techniques

Analysis of Nanofluids Behavior in Concentrated Solar Power Collectors with Organic Rankine Cycle

Identification of ORC unit operation in biomass-fired cogeneration system

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