scholarly journals The Role of Nanofluids and Renewable Energy in the Development of Sustainable Desalination Systems: A Review

2019 ◽  
Author(s):  
Tejvir Singh ◽  
Muataz Ali Atieh ◽  
Tareq Al-Ansari ◽  
Abdul Wahab Mohammad ◽  
Gordon McKay
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Power Plants ◽  
Negative Impact ◽  
Specific Energy Consumption ◽  
Vital Role ◽  
Gas Emissions

Desalination accounts for 1% of the total global water consumption and is an energy-intensive process, with the majority of operational expenses attributed to energy consumption. Moreover, at present, a significant portion of the power comes from traditional fossil fuel-fired power plants and the greenhouse gas emissions associated with power production along with concentrated brine discharge from the process, pose a severe threat to the environment. Due to the dramatic impact of climate change, there is a major opportunity to develop sustainable desalination processes to combat the issues of brine discharge, greenhouse gas emissions along with a reduction in energy consumption per unit of freshwater produced. Nanotechnology can play a vital role to achieve specific energy consumption reduction as nanofluids application increases the overall heat transfer coefficient enabling the production of more water for the same size desalination plant. Furthermore, concentrated brine discharge has a negative impact on the marine ecosystems, and hence, this problem must also be solved to support the objective of sustainable desalination. Several studies have been carried out in the past several years in the field of nanotechnology applications for desalination, brine treatment and the role of renewable energy in desalination. This paper aims to review the major advances in this field of nanotechnology for desalination. Furthermore, a hypothesis for developing an integrated solar thermal and nanofluid sustainable desalination system, based on the cyclic economy model is proposed.

scholarly journals The Role of Nanofluids and Renewable Energy in the Development of Sustainable Desalination Systems: A Review

2020 ◽  
Author(s):  
Tejvir Singh ◽  
Muataz Ali Atieh ◽  
Tareq Al-Ansari ◽  
Abdul Wahab Mohammad ◽  
Gordon McKay
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Power Plants ◽  
Specific Energy Consumption ◽  
Vital Role ◽  
Gas Emissions ◽  
Energy Consumption Reduction

Desalination accounts for 1% of the total global water consumption and is an energy-intensive process, with the majority of operational expenses attributed to energy consumption. Moreover, at present, a significant portion of the power comes from traditional fossil fuel-fired power plants and the greenhouse gas emissions associated with power production along with concentrated brine discharge from the process, pose a severe threat to the environment. Due to the dramatic impact of climate change, there is a major opportunity to develop sustainable desalination processes to combat the issues of brine discharge, greenhouse gas emissions along with a reduction in energy consumption per unit of freshwater produced. Nanotechnology can play a vital role to achieve specific energy consumption reduction as nanofluids application increases the overall heat transfer coefficient enabling the production of more water for the same size desalination plant. Furthermore, concentrated brine discharge harms the marine ecosystems, and hence, this problem must also be solved to support the objective of sustainable desalination. Several studies have been carried out in the past several years in the field of nanotechnology applications for desalination, brine treatment and the role of renewable energy in desalination. This paper aims to review the major advances in this field of nanotechnology for desalination. Furthermore, a hypothesis for developing an integrated solar thermal and nanofluid sustainable desalination system, based on the cyclic economy model is proposed.

scholarly journals The Role of Nanofluids and Renewable Energy in the Development of Sustainable Desalination Systems: A Review

Water ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 2002 ◽  
Author(s):  
Tejvir Singh ◽  
Muataz Ali Atieh ◽  
Tareq Al-Ansari ◽  
Abdul Wahab Mohammad ◽  
Gordon McKay
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Power Plants ◽  
Specific Energy Consumption ◽  
Vital Role ◽  
Gas Emissions ◽  
Energy Consumption Reduction

Desalination accounts for 1% of the total global water consumption and is an energy-intensive process, with the majority of operational expenses attributed to energy consumption. Moreover, at present, a significant portion of the power comes from traditional fossil-fuel-fired power plants and the greenhouse gas emissions associated with power production along with concentrated brine discharge from the process, pose a severe threat to the environment. Due to the dramatic impact of climate change, there is a major opportunity to develop sustainable desalination processes to combat the issues of brine discharge, greenhouse gas emissions along with a reduction in energy consumption per unit of freshwater produced. Nanotechnology can play a vital role to achieve specific energy consumption reduction as nanofluids application increases the overall heat transfer coefficient enabling the production of more water for the same size desalination plant. Furthermore, concentrated brine discharge harms the marine ecosystems, and hence, this problem must also be solved to support the objective of sustainable desalination. Several studies have been carried out in the past several years in the field of nanotechnology applications for desalination, brine treatment and the role of renewable energy in desalination. This paper aims to review the major advances in this field of nanotechnology for desalination. Furthermore, a hypothesis for developing an integrated solar thermal and nanofluid sustainable desalination system, based on the cyclic economy model, is proposed.

scholarly journals Refrigerated Transport: State of the Art, Technical Issues, Innovations and Challenges for Sustainability

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7237
Author(s):  
Angelo Maiorino ◽  
Fabio Petruzziello ◽  
Ciro Aprea
Keyword(s):  
Energy Consumption ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Negative Impact ◽  
Cold Chain ◽  
Transport Sector ◽  
Gas Emissions ◽  
Routing Problem ◽  
Alternative Technologies ◽  
Refrigerated Transport

The cold chain is responsible for perishable products preservation and transportation, maintaining a proper temperature to slow biological decay processes. Often the efficiency of the cold chain is less than ideal, significantly increasing food waste and energy consumption. Refrigerated transport is a critical phase of the cold chain because of its negative impact on energy consumption and greenhouse gas emissions. It is estimated that around 15% of global fossil fuel energy is used in the refrigerated transport sector, so there has been a growing interest in the last decades in the optimization of these systems in order to reduce their environmental impact. Vapor compression refrigeration units, usually powered by means of a diesel engine, are the most commonly used systems in road refrigerated transport. This paper provides a review of (a) currently used systems and alternative technologies that could reduce the environmental impacts of road refrigerated transport and (b) optimization models and methods used to minimize fuel/energy consumption and greenhouse gas emissions, focusing both on reducing the thermal loads and solving the refrigerated vehicle routing problem.

Renewable energy production and consumption in Hungary

2013 ◽  
Vol 4 (2) ◽  
pp. 117-122
Author(s):  
J. T. Kiss ◽  
I. Kocsis
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Energy Consumption ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Renewable Energy Consumption ◽  
Gas Emissions ◽  
Efficiency Measures ◽  
Emissions Intensity ◽  
National Economies

Abstract Energy efficiency measures and the enhancement of investments in renewable energy play important role in sustainable development and lead to advancement of competitiveness of national economies. The increase of renewable energy consumption and the reduction of greenhouse gas emissions are significant stages of the process to achieve the main purposes of sustainable development at global and national levels. In this paper the change in the share of renewable energy in gross final energy consumption and in the greenhouse gas emissions intensity in Hungary between 2004 and 2011 is investigated. It is demonstrated that the share of the renewable energy in gross inland energy consumption increased during the examined period. The measure and the tendency of the change in Hungary show similarity to the EU 27 average. The greenhouse gas emissions intensity of energy consumption decreased in Hungary between 2004 and 2011. According to the data, the decrease is the second largest among the European Member States.

scholarly journals CLIMATE POLICY OF EUROPEAN COUNTRIES

2021 ◽  
Vol 2 (4) ◽  
pp. 270-275
Author(s):  
Anna V. Komarova
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Climate Policy ◽  
General Trend ◽  
Renewable Energy Sources ◽  
European Countries ◽  
Energy Sources

The article examines the structure of modern documents of European countries in the field of climate policy, including changes in recent years. Based on the results of the analysis of the dynamics and structure of energy consumption in the European macro-region, it was revealed that against the background of the general trend of decreasing energy consumption, there is an increase in the role of renewable energy sources. When comparing the indicators of the share of renewable energy sources in energy consumption and targets for reducing greenhouse gas emissions for individual countries, significant differences were revealed for individual countries of the European macro-region.

Economic and environmental implications of the recent energy transition on South Korea’s electricity sector

2018 ◽  
Vol 29 (5) ◽  
pp. 752-769 ◽  
Author(s):  
Hana Kim
Keyword(s):  
Renewable Energy ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Nuclear Power ◽  
Power Plants ◽  
Electricity Sector ◽  
Reference Scenario ◽  
Environmental Implications ◽  
Gas Emissions ◽  
Economic Implications

South Korea’s electricity sector is at a crossroads. A transition to a safer and more ecologically friendly electricity system, one that would reduce dependence on coal and nuclear power plants and produce more electricity from new and renewable energy, is being suggested and actively discussed. Changes to these two pillars of the electricity sector, which have enabled a reliable and affordable electricity supply, present environmental and economic concerns. Will this shift adversely affect the electricity sector’s greenhouse gas emissions? Will this change be economically feasible? To answer these questions, this study explored the environmental and economic implications of changes in the South Korean electricity sector using the Long-range Energy Alternative Planning model. Despite using very conservative assumptions about the generation of new and renewable energy, the study found an economically feasible path that would yield less greenhouse gas emissions than the reference scenario. This path, which involved closing old coal-fired power plants, phasing out nuclear power, and reducing demand, shed light on the green shift in the electricity sector. Decreasing electricity demands should be discussed and considered along with this change. The study’s implications could apply to other countries as they investigate the economic and environmental implications of various policy options for transitioning to safer and more ecologically friendly sources of electricity.

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