Simulation and assessment of an integrated thermal processes and Organic Rankine Cycle (ORC) system with Modelica

Oliveira, Miguel Castro; Iten, Muriel; Matos, Henrique A.

doi:10.1016/j.egyr.2022.10.268

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…In this latter case, however, the working fluids to be used should have a boiling point much lower than that of water. It is evident, therefore, that industrial SMEs that generate high-temperature waste heat should certainly investigate WHP options in their effort to enhance their energy efficiency and reduce their energy footprint [31,83,84].…”

Section: Waste Heat To Powermentioning

confidence: 99%

“…• High-temperature waste heat is used to prepare steam which could drive a steam turbine to generate electricity • Relatively lower temperature waste heat could be used to generate electricity with a technology quite similar to the one of steam turbines, employing working fluids with a boiling point much lower than that of water [31,83,84]…”

Section: Waste Heat To Powermentioning

confidence: 99%

See 1 more Smart Citation

Energy Efficiency Management in Small and Medium-Sized Enterprises: Current Situation, Case Studies and Best Practices

Gennitsaris

Oliveira

Vris³

et al. 2023

Sustainability

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Energy efficiency is a key factor to meet the ambitious climate targets of the European Union (EU) aligned with the international policy directives. On their own, Small and Medium-sized Enterprises (SMEs) do not consume big amounts of energy, but taking into consideration that they represent about 99% of businesses worldwide, their cumulative energy consumption is remarkable. Even though SMEs experience several barriers in their effort to improve their energy efficiency, their contribution to the EU’s energy efficiency improvement targets is crucial through the implementation of measures to improve their energy footprint. The purpose of this paper is to present a comprehensive review of SMEs’ energy efficiency and energy footprint management, which has been carried out in the context of the “SMEnergy—Energy Footprint Management for SMEs” EU-funded Erasmus+ project. The correlation between energy conversion and consumption processes and energy efficiency, as well as the current situation of energy footprint management and energy management systems in SMEs, are discussed in detail. Moreover, successful case studies of SMEs that have implemented specific measures to improve their energy footprint and achieve energy efficiency targets are also included. It is highlighted that SMEs exhibit a high potential for energy efficiency enhancement that could directly promote climate change mitigation and sustainable development.

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Section: Waste Heat To Powermentioning

confidence: 99%

Section: Waste Heat To Powermentioning

confidence: 99%

Energy Efficiency Management in Small and Medium-Sized Enterprises: Current Situation, Case Studies and Best Practices

Gennitsaris

Oliveira

Vris³

et al. 2023

Sustainability

Self Cite

View full text Add to dashboard Cite

show abstract

“…For water efficiency improvement, the installation of wastewater treatment units coupled with water recirculation have been proposed for several case studies as a set of measures that allow the overall decrease in freshwater consumption and also the reduction of contaminant discharges [7]. For energy efficiency improvement, various measures, such as waste heat recovery [8], thermal energy storage [9][10][11], and high-efficiency electric motor installation [12], have been proposed. Advanced categories of measures include energy recovery from water and wastewater [13,14], in which specific discharges of water systems are used to bring benefits at the level of energy use.…”

Section: Introductionmentioning

confidence: 99%

Sustainability and Strategic Assessment of Water and Energy Integration Systems: Case Studies of the Process Industry in Portugal

Oliveira,

Matos

2023

Energies

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The most recent sustainability policies of each region of the world conjointly define that economic activities shall follow the principles of natural resource use minimisation, as well as eco-efficiency and circular economy promotion, in addition to the specific objectives defined in each policy. Most recently, a group of researchers has proposed innovative conceptual systems designated Water and Energy Integration Systems (WEIS) for issues related to water and energy use (two prominent categories of natural resources). These are based on engineering projects encompassing a multitude of processes and technologies. In this work, an assessment based on the determination of several sustainability and strategic-aims-related indicators is performed for two WEIS case studies set in the Portuguese process industry (in this case, a ceramic plant). Such an assessment serves as an expansion of previously performed studies on the economic and environmental viability associated with the installation of this type of system with the ultimate goal of proving the effective compliance of water- and energy-use-reduction-related results with sustainability and strategic aims (namely, the ones associated with the most recent policies and aspects associated with the social, economic, and environmental pillars of sustainability). The results for the overall assessment proved that the conceptualised WEIS are robust in terms of eco-efficiency, circular economy potential, and strategic objective achievement potential (with a 6.46% and 4.00% improvement for the aggregated eco-efficiency indicator having been obtained for, respectively, case studies 1 and 2, a null water discharge for both case studies, and a level of 8.58% and 6.69% of recirculated heat over total energy consumption, respectively). The obtained results prove the sustainability promotion effectiveness of the WEIS as conceptual systems. The overall set of indicators defined in this work are part of a methodology that may be used and adapted for further studies considering the innovative WEIS approach, with the specific results obtained in this work presented with the aim of their being used for comparison.

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Dynamic simulation and optimisation of water and energy consumption in a ceramic plant: Application of the customised ThermWatt computational tool

Oliveira,

Matos

2024

Computer Aided Chemical Engineering

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Simulation and assessment of an integrated thermal processes and Organic Rankine Cycle (ORC) system with Modelica

Cited by 4 publications

References 14 publications

Energy Efficiency Management in Small and Medium-Sized Enterprises: Current Situation, Case Studies and Best Practices

Energy Efficiency Management in Small and Medium-Sized Enterprises: Current Situation, Case Studies and Best Practices

Sustainability and Strategic Assessment of Water and Energy Integration Systems: Case Studies of the Process Industry in Portugal

Dynamic simulation and optimisation of water and energy consumption in a ceramic plant: Application of the customised ThermWatt computational tool

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