Review
Green & Sustainable Science & Technology
A. S. A. Mohamed, Abanob G. Shahdy, Hany A. Mohamed, M. Salem Ahmed
Summary: Freshwater scarcity is a growing global concern, and seawater desalination is a crucial solution to address this issue. This study focuses on vacuum solar still systems and reviews their current status to guide future research and improvement. The study highlights the design specifications, advantages, and disadvantages of various vacuum techniques used in solar still systems. It concludes that lowering the operating pressure can significantly improve system productivity and efficiency. Forced vacuum conditions are more effective than natural vacuum conditions, but the cost of freshwater produced in natural vacuum conditions is lower than that in forced vacuum conditions.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Review
Engineering, Chemical
Guilong Peng, Swellam W. Sharshir
Summary: Solar desalination provides a clean and economical way for freshwater supply. This review focuses on the research progress of multi-stage solar stills, including stacked tray, tubular, and vertical diffusion solar stills. Both the stacked tray and tubular solar stills outperform single-stage solar stills, but their stage numbers are usually limited. On the other hand, vertical diffusion solar stills achieve the highest daily productivity due to more effective stages, but they also encounter more challenges that require further investigation in the future.
Review
Engineering, Multidisciplinary
Mahmoud Elgendi, A. E. Kabeel, F. A. Essa
Summary: Solar stills are convenient tools for desalinating water using solar energy but are not very efficient. However, the use of thermoelectric materials can improve their performance. Thermoelectric materials can be used as coolers or heaters in the solar still system, as well as generators of electricity. The study discusses and compares the modifications made to solar stills using thermoelectric materials to produce potable water from saline or brackish water, concluding that they enhance performance and increase the yield.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Review
Environmental Sciences
Mohit Bhargva, Avadhesh Yadav
Summary: This paper discusses various modifications in solar still to enhance productivity, analyzes different parameters affecting passive solar still performance and their optimal values for maximum productivity, and find that water depth is an important operating parameter influencing still productivity, with maximum productivity mostly achieved at minimum water depths.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Review
Engineering, Multidisciplinary
Karrar A. Hammoodi, Hayder A. Dhahad, Wissam H. Alawee, Z. M. Omara
Summary: Solar stills are commonly used for solar desalination but have low productivity. This paper provides an overview of the parameters affecting the performance of pyramid solar stills, including meteorological, design, and operating factors. Various factors such as solar irradiation, water coloring, and reflectors significantly affect the productivity of solar stills. Studies have shown that the use of PCM, v-corrugated absorber plates, and nanoparticles can greatly increase the productivity of pyramid stills. However, further research and improvements are still needed to optimize the performance of solar stills.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Shahin Shoeibi, Seyed Ali Agha Mirjalily, Hadi Kargarsharifabad, Hitesh Panchal, Ramasamy Dhivagar
Summary: This study compares the performance of different types of solar stills under nanofluid film cooling using CFD simulation. The results show that the double-slope solar still with nanofluid film cooling has higher water productivity, lower cost, and CO2 mitigation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Thermodynamics
Ahmed H. Mohammed, Ahmed N. Shmroukh, Nouby M. Ghazaly, Abd Elnaby Kabeel
Summary: Clean water is becoming scarcer due to increasing demand, and desalination of seawater is seen as the solution. Solar-powered desalination devices, particularly solar stills, have garnered attention as a clean alternative. This article examines the progress and techniques for enhancing performance, efficiency, and water production in active solar stills equipped with solar concentrators, aiming to keep researchers and the scientific community informed of advancements in this field.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Review
Environmental Sciences
Mohamed Ragab Diab, Fadl Abdelmonem Essa, Fawzy Shaban Abou-Taleb, Zakaria Mohamed Omara
Summary: Access to freshwater is decreasing globally, leading to many water-related diseases. Solar desalination technology is essential for providing drinking water efficiently and economically.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Thermodynamics
Oussama Rejeb, Mohamed S. Yousef, Chaouki Ghenai, Hamdy Hassan, Maamar Bettayeb
Summary: This study proposes an innovative statistical model using the response surface methodology to analyze a batch solar behavior still. It determines the most influential input factors affecting water productivity, establishes a polynomial regression model for prediction, and validates the model's fitting. The results indicate the importance ranking of water depth, solar radiation, ambient temperature, and thickness of insulation on distilled water quantity from solar stills.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Review
Environmental Sciences
Digvijay Singh, Dharam Buddhi, Alagar Karthick
Summary: Solar still is a sustainable and renewable technology that converts salty water into fresh water, contributing to CO2 mitigation and the achievement of sustainable development goals. Using phase change materials and enhancing heat transfer can improve the performance and productivity of solar still. This article reviews the performance of different solar still designs integrated with phase change materials and explores the effect of nanoparticles. The findings show significant improvements in distillate productivity using these techniques.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Energy & Fuels
Mohamed E. A. E. Ahmed, Saber Abdo, M. A. Abdelrahman, Osama A. Gaheen
Summary: This paper presents a novel experimental work on enhancing the performance of pyramid solar stills using PCM-encapsulated cylindrical fins with different heights. The study conducted three phases to optimize the height of the fins and water depth. The results showed that using fins improved the performance of the solar stills, and specific heights and water depths achieved the best results. The incorporation of PCM in the fins further increased the overall efficiency and water productivity of the solar stills.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Chemical
Nursyahirah Mohd Shatar, Mohd Faiz Mohd Salleh, Mohd Hanafi Ani, Mohd Faizul Mohd Sabri
Summary: Water purification using renewable energy sources, particularly solar energy, is a common method to produce clean water. This study investigated the use of a mixed wettability surface on the condensing cover of a solar still to enhance its productivity. The results showed that the addition of a coating improved the freshwater output, but a high coating surface area increased the temperature inside the cover.
Article
Environmental Sciences
Ahmed H. Mohammed, M. Attalla, Ahmed N. Shmroukh
Summary: The study found that using a solar still with phase change material in coastal areas of Egypt can improve productivity, especially when the weight of the phase change material is 4 kg. The use of phase change material also increases the yield during nighttime operation and raises the average basin water temperature.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Review
Energy & Fuels
Obai Younis, Ahmed Kadhim Hussein, Mohammed El Hadi Attia, Farhan Lafta Rashid, Lioua Kolsi, Uddhaba Biswal, Aissa Abderrahmane, Abed Mourad, Anas Alazzam
Summary: Approximately 97 percent of Earth's water is salty or polluted, leaving only 3 percent as freshwater, with just 1 percent easily accessible for human use. Solar desalination, specifically the use of hemispherical solar stills (HSS), is gaining prominence as an effective method for addressing water shortage. However, there are limitations to the performance of HSS, and researchers have been exploring ways to enhance its thermal efficiency.
Article
Green & Sustainable Science & Technology
Milad Setareh, Mohammad Reza Assari, Hassan Basirat Tabrizi, Mohammad Alizadeh
Summary: Shortage of available freshwater has become a critical issue, leading to the development of different solar stills to supply freshwater in rural areas. However, low performance has been a major drawback. In this study, a novel stepped solar still, covered by wick porous material, is designed and built. Experimental investigations were conducted to analyze the productivity, temperature, and efficiency of the stepped solar still with different porous material thicknesses. Results showed that a thicker porous medium led to higher freshwater productivity and efficiency, and the presence of porous material affected the temperature of the internal space. The optimal porous medium was found to be 12 mm thick, with a productivity of one liter and thermal and exergy efficiencies of 24.71% and 3.528%.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Thermodynamics
Prakash Perumal, Velmurugan Vellaipandian
Article
Thermodynamics
Appadurai Mangalaraj, Velmurugan Vellaipandian
Article
Engineering, Chemical
V. Velmurugan, K. Srithar
DESALINATION AND WATER TREATMENT
(2010)
Article
Green & Sustainable Science & Technology
V. Velmurugan, K. Srithar
JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY
(2011)
Review
Green & Sustainable Science & Technology
V. Velmurugan, K. Srithar
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2011)
Article
Engineering, Chemical
S. Joe Patrick Gnanaraj, V. Velmurugan
Article
Energy & Fuels
S. Joe Patrick Gnanaraj, V. Velmurugan
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2020)
Proceedings Paper
Materials Science, Multidisciplinary
V. Velmurugan
Summary: This design paper focuses on the development of a circular quick pyrolysing reactor that converts agricultural biomass into biochar. The design criteria include achieving high heating potential in the combustion chamber and controlling temperature for even heat distribution and retention of volatile organic compounds. The design specifications are based on kinetic studies and a real time model capable of processing 100 kg of biomass in 1 h. The fluidized bed reactor models are able to efficiently combust biomass within a short vapor residence time. The importance of processing agricultural waste for a pollution-free environment is also emphasized in this research outcome.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
V. Velmurugan
Summary: This paper reviews the use of pyrolysers by various researchers, discussing the different applications, temperatures obtained, and areas of application for different raw materials. It also provides a review of some modified pyrolysers.
MATERIALS TODAY-PROCEEDINGS
(2022)
Article
Energy & Fuels
S. Joe Patrick Gnanaraj, V. Velmurugan
INTERNATIONAL JOURNAL OF AMBIENT ENERGY
(2019)
Article
Chemistry, Multidisciplinary
P. Prakash, V. Velmurugan
OXIDATION COMMUNICATIONS
(2015)
Article
Green & Sustainable Science & Technology
M. Appadurai, V. Velmurugan
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2015)
Article
Engineering, Chemical
M. Appadurai, V. Velmurugan
DESALINATION AND WATER TREATMENT
(2017)
Article
Engineering, Chemical
P. Prakash, V. Velmurugan
DESALINATION AND WATER TREATMENT
(2017)
Article
Green & Sustainable Science & Technology
M. Genovese, F. Piraino, P. Fragiacomo
Summary: This research proposes the concept of a hydrogen valley in southern Italy, where hydrogen is produced centrally and delivered via fuel cell hybrid trains to refueling stations, providing transportation services. The analysis from both technical and economic perspectives shows that the cost of hydrogen and energy efficiency reached competitive levels, and hydrogen rail transport offers significant benefits in terms of emissions reduction and economic gains compared to conventional diesel trains and fully electric trains.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Miaomiao Liu, Payam Nejat, Pinlu Cao, Carlos Jimenez-Bescos, John Kaiser Calautit
Summary: This article provides a critical review of the performance of windcatchers, pointing out the current research gaps and issues, and proposing directions for further investigation and market prospects.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Solomon Boadu, Ebenezer Otoo
Summary: Despite Africa's vast energy resources, including wind energy, the continent faces challenges in developing its wind energy industry. Northern African countries and South Africa currently dominate the wind energy sector in Africa. To uplift Africa's socio-economic status, strong political will, supportive policies, and institutional frameworks are needed to drive the development of wind energy and overcome existing challenges.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
E. K. Grubbs, S. M. Gruss, V. Z. Schull, M. J. Gosney, M. V. Mickelbart, S. Brouder, M. W. Gitau, P. Bermel, M. R. Tuinstra, R. Agrawal
Summary: As the global population grows, the demand for food, energy, and water will increase significantly. However, limited land availability and competition for solar resources pose challenges to resource generation technologies. In the United States, both agriculture and solar energy production have adopted densification schemes to improve yields and energy output per unit of land. This research proposes an Agrivoltaic food and energy coproduction architecture that optimizes power generation while maintaining crop productivity by implementing ideal anti-tracking during critical growth periods. This technology offers a viable pathway for widespread solar implementation throughout the contiguous United States.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Han Shao, Rui Henriques, Hugo Morais, Elisabetta Tedeschi
Summary: The integration of offshore wind energy into the electric grid provides opportunities in terms of environmental sustainability and cost efficiency, but poses challenges to power quality. This survey offers a deeper understanding of disturbance detection and classification tools, exploring root causes, disturbance locations, and algorithmic solutions. It highlights synchronized waveform measurement and discusses evaluation metrics for detection and classification algorithms. Additionally, a novel system-wide monitoring framework is proposed.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Eleni Davidson, Yair Schwartz, Joe Williams, Dejan Mumovic
Summary: A continued upward trend in global greenhouse gas emissions poses risks to global infrastructure and built assets. Maintaining high indoor environmental quality standards is a challenge for higher education institutions under future climates. Passive cooling mechanisms may be insufficient to tolerate predicted temperature increases. Different building typologies have varying energy demand projections.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Kexin Pang, Jian Zhou, Stamatis Tsianikas, David W. Coit, Yizhong Ma
Summary: This study proposes a new framework for long-term microgrid expansion planning, using deep reinforcement learning method to consider various uncertainties and constraints. The framework aims to enhance the effectiveness of microgrid expansion planning from the perspectives of economy, resilience, and greenhouse gas emission reduction.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Jun Zhao, Kangyin Dong, Xiucheng Dong
Summary: The continuous growth of global electricity penetration has provided modern energy for alleviating energy poverty, but its impact on carbon neutrality has been overlooked. The research reveals that clean electricity from traditional fossil energy and renewable energy has a positive influence on the greenhouse effect. Eradicating energy poverty can effectively alleviate the greenhouse effect, especially in non-Belt and Road Initiative (B&RI) nations.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Hossein Shahbeik, Hamed Kazemi Shariat Panahi, Mona Dehhaghi, Gilles J. Guillemin, Alireza Fallahi, Homa Hosseinzadeh-Bandbafha, Hamid Amiri, Mohammad Rehan, Deepak Raikwar, Hannes Latine, Bruno Pandalone, Benyamin Khoshnevisan, Christian Sonne, Luigi Vaccaro, Abdul-Sattar Nizami, Vijai Kumar Gupta, Su Shiung Lam, Junting Pan, Rafael Luque, Bert Sels, Wanxi Peng, Meisam Tabatabaei, Mortaza Aghbashlo
Summary: This review explores the production of biocrude oil from biomass feedstocks through the process of hydrothermal liquefaction (HTL). It discusses the impact of process parameters on the quality, quantity, cost, and environmental impacts of biofuels. The review also highlights the challenges and prospects for the future development of biocrude oil.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Meysam Majidi Nezhad, Mehdi Neshat, Georgios Sylaios, Davide Astiaso Garcia
Summary: Digital twins promise innovation for the marine renewable energy sector by using modern technological advances and the existing maritime knowledge frameworks. This research presents critical aspects of digital twin implementation challenges in marine energy digitalization approaches that use and combine data systems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Yeganeh Sharifian, Hamdi Abdi
Summary: This paper discusses the background and objectives of the multi-area economic dispatch problem, as well as various techniques and methods applied in this field. It also covers comprehensive formulations of the problem and important issues in the field of probabilistic MAED, along with some related concepts and suggestions.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
J. G. B. Churchill, V. B. Borugadda, A. K. Dalai
Summary: The increasing global energy demand and the need to reduce fossil fuel reliance have created a demand for renewable and sustainable fuel sources. This review explores the potential of tall oil, a by-product of the pulping industry, as a feedstock for biofuels. The review provides an overview of tall oil production, purification, and treatment, and investigates recent trends and barriers towards tall oil-derived biofuels.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
David C. Broadstock, Xiangnan Wang
Summary: This study provides a general review of research on district cooling, identifying key topics and themes and highlighting potential research priorities for future studies.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
L. Scharnhorst, D. Sloot, N. Lehmann, A. Ardone, W. Fichtner
Summary: This study investigates and analyzes the barriers to demand response in industrial and commercial sectors, highlighting their significance. Concerns about diminished product quality, disruptions to production processes, human resource management, and revenue uncertainty are identified as the most frequently cited barriers. Overcoming these barriers requires bridging knowledge gaps, allocating sufficient resources, and adapting external incentives and policies.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Review
Green & Sustainable Science & Technology
Tong Feng, Yuechi Sun, Yating Shi, Jie Ma, Chunmei Feng, Zhenni Chen
Summary: Air pollution is a significant global challenge, and policymakers have implemented policies to reduce it. Evaluating the effectiveness of these policies is critical, and our study reveals trends and gaps in air pollution policy research. We found that research has shifted from focusing solely on air pollutants to including methodologies, policies, and health implications. China has emerged as a major contributor in this field of research.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)