| 1. |
- Duic, Neven, et al.
(författare)
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Sustainable development of energy, water and environment systems
- 2013
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Ingår i: Applied Energy. - : Elsevier BV. - 0306-2619 .- 1872-9118. ; 101, s. 3-5
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Tidskriftsartikel (refereegranskat)abstract
- The 6th Dubrovnik Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES Conference), attended by 418 scientists from 55 countries representing six continents. It was held in 2011 and dedicated to the improvement and dissemination of knowledge on methods, policies and technologies for increasing the sustainability of development, taking into account its economic, environmental and social pillars, as well as methods for assessing and measuring sustainability of development, regarding energy, transport, water and environment systems and their many combinations.
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| 2. |
- Lam, Hon Loong, et al.
(författare)
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Green Applied Energy for sustainable development
- 2016
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Ingår i: Applied Energy. - : Elsevier. - 0306-2619 .- 1872-9118. ; 161, s. 601-604
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- This special issue of Applied Energy contains articles developed from initial ideas related to the 17th Conference Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (PRES 2014) held in Prague, Czech Republic, during 23-27 August 2014. The conference has been organised jointly with CHISA 2014. Both events have benefitted from the shared pool of participants as well as the expanded opportunities for exchanging ideas. From all contributions presented at the conference, high-quality ones suitable for Applied Energy, have been invited. Overall, 37 extended manuscripts have been invited as candidate articles. Of those, after a thorough review procedure, 11 articles have been selected to be published. The topics attained in the focus of this Special Issue include Process Integration and Energy Management, CO2 capture, and Green Energy Applications.
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| 3. |
- Li, Nianqi, et al.
(författare)
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Heat exchanger network optimisation considering different shell-side flow arrangements
- 2022
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Ingår i: Energy. - : Elsevier BV. - 0360-5442. ; 261
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Tidskriftsartikel (refereegranskat)abstract
- Heat exchanger network synthesis (HENS) is an effective tool for heat recovery in chemical and petrochemical industries. This study aims to show a method for HENS with the consideration of different shell-side flow arrangements in shell-and-tube heat exchangers. The proposed MINLP model is modified from the stage-wise superstructure model, incorporating newly developed correlations for shell-side pressure drop calculation for the helical baffle. The objective is to minimise the total annual cost (TAC) with a trade-off between the cost of different shell-side heat exchangers, utility cost, and pumping cost. The selection of baffle design is decided by the saved pumping cost and the increased area cost. The proposed model is tested from different points of view: with/without utility constraints and different statuses of the streams. Three case studies are presented and compared with the results from the literature. The proposed method with different shell-side baffles can reduce the heat transfer area and pressure drop. For fixed utility consumptions, the TAC in a case study is decreased by 8.9% with mixed baffle types. Although the unit per area cost of the helical baffle is higher than the segmental baffle, the increased investment cost could be compensated by the reduced operation cost, especially for plants with high viscosity streams and long-term cost-saving.
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| 4. |
- Li, Nianqi, et al.
(författare)
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Heat exchanger network synthesis considering detailed thermal-hydraulic performance : Methods and perspectives
- 2022
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Ingår i: Renewable and Sustainable Energy Reviews. - : Elsevier BV. - 1364-0321. ; 168
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Forskningsöversikt (refereegranskat)abstract
- Heat exchanger network synthesis is an essential optimisation tool for Process Integration, particularly in energy-intensive industries. Proper design or retrofit of heat exchanger network can enable energy conservation, efficiency improvement, and process debottlenecking. Many earlier pieces of research have focused on the impact of the network structure and process features such as network topology, temperature intervals, continuous/batch processes, and so on. As the major device in heat exchanger networks, heat exchangers research has always been a hot topic. However, the individual heat exchanger research is different from the number of heat exchangers in a network. Various performance aspects of the heat exchangers, e.g., pressure drop, fouling, and thermal performance, could influence the whole network and the passive responses between each heat exchanger. Besides, integrating those aspects of individual heat exchangers into the network synthesis is still an open problem, especially for cases that demand simultaneous optimisations. This work presents a thorough assessment of research into those aspects in heat exchanger networks, as well as the state-of-the-art of current approaches for heat exchanger networks optimisation that take heat exchanger performance into account. The essential coupling among fouling, pressure drop and thermal design is explored, and the nexus between them and the heat exchanger network is analysed. Researchers will benefit from this overview of heat exchanger network synthesis retrofitting methods and applications.
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| 5. |
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| 6. |
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| 7. |
- Nemet, Andreja, et al.
(författare)
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Improving sustainability development in energy planning and optimisation
- 2016
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Ingår i: Applied Energy. - : Elsevier. - 0306-2619 .- 1872-9118. ; 184, s. 1241-1245
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Tidskriftsartikel (refereegranskat)abstract
- This special issue of Applied Energy contains articles developed from initial ideas related to the 10th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES) held in Dubrovnik, Croatia during September 27 - October 2, 2015. The main focus of the event is the sustainability development joining all required areas for achieving as improving the knowledge on method, policies and technologies as well as dissemination of the results. Overall, 64 extended manuscripts have been invited as candidate articles. After a thorough review procedure, 23 articles have been selected to be published. The topics attained in the focus of this Special Issue include Integration, Optimisation and Analysis of energy systems as well as dissemination of the developed methodology and results obtained.
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| 8. |
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| 9. |
- Radelyuk, Ivan, et al.
(författare)
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Oil refinery and water pollution in the context of sustainable development : Developing and developed countries
- 2021
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Ingår i: Journal of Cleaner Production. - : Elsevier BV. - 0959-6526.
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Tidskriftsartikel (refereegranskat)abstract
- This paper is an attempt to evaluate the impact of the oil refinery industry on water resources worldwide from the point of view of sustainable development (SD). The local laws, reports from the industry and environmental agencies, conditions of the final disposal system were analysed. Key aspects, such as existing approaches for treatment systems, quality of treated wastewater, and ways to assure the safety of them were compared. The comparison between industrialised (represented by the USA and EU) and developing countries (Kazakhstan used as an example) shows that several obstacles, such as loopholes in legislation, historical contamination, and miscommunicating between stakeholders, exist, despite the formal promotion of the SD concept. That policy should be implemented based on the relevant scientific investigation through the possibility of integrating the respective technological development, an adequate system of environmental impact assessment, and fair operational monitoring.
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| 10. |
- Radelyuk, Ivan, et al.
(författare)
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Sustainable Water Use in Industry—Reasons, Challenges, Response of Kazakhstan
- 2023
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Ingår i: Circular Economy and Sustainability. - 2730-597X. ; 3, s. 2267-2283
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Tidskriftsartikel (refereegranskat)abstract
- Industrial development poses significant challenges to water resource management, both in terms of quality and quantity. In response to these challenges, the concept of sustainable water use has been proposed as a means of addressing these issues. However, this concept is not yet widely adopted in developing countries, particularly in Kazakhstan. This paper examines the extent to which water use is sustainable on the example of the oil refinery sector in Kazakhstan. The investigation revealed a two-fold problem: the discharge of contaminated wastewater into the environment, which poses a risk of contamination transport, and the irrational use of water within the refinery. These issues are rooted in low water fees, low penalties for pollution and the gaps in legislation that allow for high maximum allowable concentrations of pollutants in discharges. As a result, toxic contaminants, such as petroleum hydrocarbons, are present in high concentrations exceeding permissible limits in groundwater up to 6 km away from the point of wastewater discharge. Based on the findings of the environmental impact assessments carried out in the sector, the authors propose a response that involves revising and implementing suitable legislative standards with requirements for transparent practices for environmental impact assessment and new efficient environmental monitoring programs to prevent water pollution. These measures have been adopted in the new Ecological Code and require proper control to ensure their effective implementation. However, the perspective of implementing efficient water-saving techniques and water integration is not yet widely visible and needs to be considered in order to achieve the sustainable water use in the industry.
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| 11. |
- Shen, Haixiao, et al.
(författare)
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Numerical Study on Heat Transfer and Performance of Seasonal Borehole Thermal Energy Storage
- 2023
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Ingår i: Heat Transfer Engineering. - : Informa UK Limited. - 0145-7632 .- 1521-0537. ; 44:21-22, s. 2027-2039
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Tidskriftsartikel (refereegranskat)abstract
- Design of the borehole thermal energy storage (BTES) is very important for the seasonal solar thermal storage system. The BTES designed based on the empirical method could lead to some unsatisfied effects in actual operations. This paper simulated the BTES operation in one year to study the effects of soil thermal conductivity, soil volume-specific heat, initial soil temperature and relative surface area of storage on energy efficiency of the BTES. The results show that energy efficiency of the BTES reaches the maximum when soil thermal conductivity is 1.8 W/(m·K). According to the results, soil thermal conductivity has more significant effects on the heat extraction per soil volume but has the most negligible impact on energy efficiency of the BTES. At the same time, relative surface area of storage is the most influential factor on energy efficiency of the BTES. Finally, a new BTES design method was proposed which is suitable for the studied parameter range. It is worth noting that the present study focuses on the continuous operation of the system and fixed buried pipe spacing, while the intermittent operation and other buried pipe spacing will be studied in future work.
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| 12. |
- Wang, Jin, et al.
(författare)
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A review on nanofluid stability : preparation and application
- 2023
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Ingår i: Renewable and Sustainable Energy Reviews. - 1364-0321. ; 188
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Tidskriftsartikel (refereegranskat)abstract
- Due to excellent thermal performance and application prospects, nanofluids are attracting many researchers to pay more attention to new types of heat transfer fluids. However, previous studies have focused on the effects of nanofluids on thermophysical properties without considering the limitation of dispersion stability in practical applications. Excellent nanofluid stability is judged with the zeta potential value above 30 mV. Unstable nanofluids block the fluid flow in heat exchanger channels, which reduces the system performance by over 23 %. Based on a systematic review of improving nanofluid stability, this research discusses the preparation, characterisation, influencing factor, dispersion mechanism, and dispersion method on nanofluid stability. Four methods for improving nanofluid stability are summarised. The nanofluid is stable at pH values between 4 and 9 b y controlling its ionic concentration. The nanofluid concentration is required below 2 % to improve the repulsion between nanoparticles. The stability of the nanofluid is affected by the type and amount of the surfactant, which fails to improve the nanofluid stability at temperature above 60 °C. In addition, the molecular forces between the mixed nanofluids enhance the stability of the nanofluid. This review examines the variation patterns of nanofluid stability and the effect of stability on heat transfer. It is expected to identify some opportunities and demonstrate future challenges in both the in-lab research and the commercialisation of nanofluids.
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| 13. |
- Zheng, Dan, et al.
(författare)
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Analysis of thermal efficiency of a corrugated double-tube heat exchanger with nanofluids
- 2022
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Ingår i: Energy. - : Elsevier BV. - 0360-5442. ; 256
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Tidskriftsartikel (refereegranskat)abstract
- This research investigated convective heat transfer and hydraulic resistance of smooth and corrugated double-tube heat exchangers at various flow rates from 60 L/h to 200 L/h. The inner tube with a thread structure is designed with three pitches, i.e., 4 mm, 6 mm and 8 mm. Nanofluids are used as tube-side fluids to analyze the enhancement of heat transfer on the inner tube side. Results show that the boundary layer is destroyed by the thread structure, and the heat flux is intensified at the outer tube side. For the double-tube heat exchanger, the combined enhancement technology using thread structure at the side of the outer tube and nanofluids at the side of the inner tube contributes to improvement in the overall heat transfer performance. The maximum increment in the comprehensive performance index is 59% for the case of 1.5 wt% SiC-water nanofluid with a thread pitch of 4 mm at a flow rate of 200 L/h. Finally, the distribution of local temperature difference is analysed theoretically for nanofluids with the optimum particle concentrations, which confirmed the rationality of 1.5 wt% SiC-water nanofluid with a thread pitch of 4 mm. Results reveal that the combined enhancement of using nanofluids and a thread structure has great potential in enhancing the thermal performance of double-tube heat exchangers.
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