Review
Green & Sustainable Science & Technology
S. Christopher, M. P. Vikram, Chirodeep Bakli, Amrit Kumar Thakur, Y. Ma, Zhenjun Ma, Huijin Xu, Pinar Mert Cuce, Erdem Cuce, Punit Singh
Summary: Global warming, climate change, and resource depletion have driven the need for improved energy usage and efficiencies in residential and commercial buildings. The Building Sector accounts for 40% of greenhouse gas emissions, making it a crucial area for enhancing energy efficiency. This paper examines the potential of Renewable Energy Systems (RES) and their combinations in converting low energy-efficient buildings into highly efficient ones, considering factors such as payback durations and CO2 emissions reduction. The article discusses optimization flow charts, feasibility studies, technology drawbacks, and proposes innovative techniques for future research.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Thermodynamics
Kumaran Kannaiyan, G. S. Lekshmi, Seeram Ramakrishna, Misook Kang, Vignesh Kumaravel
Summary: This study provides a comprehensive assessment of the potential of the hydrogen economy, highlighting its significant role in decarbonizing industrial sectors. In addition to advancements in materials, alternative routes such as wastewater recycling and the use of microbes or enzymes are explored. However, safe transportation and storage of hydrogen, as well as government incentives, are crucial for the development of the hydrogen economy.
Article
Green & Sustainable Science & Technology
Anh Tuan Hoang, Ashok Pandey, Francisco Javier Martinez De Oses, Wei-Hsin Chen, Zafar Said, Kim Hoong Ng, Uemit Agbulut, Wieslaw Tarelko, Aykut I. Olcer, Xuan Phuong Nguyen
Summary: This study comprehensively reviewed the application of hydrogen energy in the shipping industry and identified various problems hindering its development, such as limited ship space, difficulties in hydrogen storage, inadequate infrastructure, and high costs. Additionally, the study provided suggestions on technological and policy aspects to promote the green transition of the hydrogen-powered maritime industry.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Review
Multidisciplinary Sciences
R. B. Grover
Summary: This article discusses the energy challenges faced by India and the need for a low-carbon transition, providing recommendations for integrated planning and utilizing various low-carbon energy technologies and emission reduction mechanisms.
Article
Energy & Fuels
Candelaria Bergero, Matthew Binsted, Osama Younis, Evan G. R. Davies, Muhammad-Shahid Siddiqui, Rui Xing, Evan J. Arbuckle, Diego Chiappori, Jay Fuhrman, Haewon McJeon, Nick Macaluso
Summary: As a signatory of the Paris Agreement, Canada has set an ambitious target of achieving net-zero emissions by 2050. However, with significant oil reserves in the Alberta oil sands, decarbonizing the oil sands sector becomes crucial for Canada to meet its target. This study explores the future of the oil sands sector in deeply decarbonized global and Canadian economies, considering different mitigation scenarios and the availability of lower carbon extraction technologies. The findings indicate that the deployment of lower carbon technologies can increase oil sands production, while the future of Canadian oil sands production heavily relies on international oil demand and the availability of negative emissions technologies.
ENERGY STRATEGY REVIEWS
(2022)
Article
Thermodynamics
Clinton Thai, Jack Brouwer
Summary: This study investigates the challenges of incorporating the technical potential of photovoltaic power generation into an existing university microgrid system in order to achieve complete decarbonization. Three energy storage integration pathways are established: battery energy storage systems (BESS) for daily energy shifting, hydrogen production for conversion in a gas turbine power plant (P2G-GT), and hydrogen production for conversion in a fuel cell system (P2G-FC). Installing maximum solar PV capacity meets 20% of the electric load, but 58% of PV production is curtailed without energy storage. BESS and P2G-FC strategies both result in a high 64% renewable energy supply. BESS is better for continuous runtimes of a day or less, while the hydrogen storage plus fuel cell option is better for one to three days of continuous power. To fully decarbonize the microgrid, a significant portion of the renewable energy supply must come from procured biogas or off-campus resources.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Economics
Erin Mayfield, Jesse Jenkins, Eric Larson, Chris Greig
Summary: Achieving net-zero emissions in the US by mid-century requires transforming the energy system and workforce. This study develops a labor model for energy system transitions and finds that the net-zero transition could create millions of energy jobs and billions in wages. The workforce will represent a small percentage of the total labor force, and the transition will require training and education on a large scale over a sustained period. Factors such as technology selection, infrastructure expansion, and policy decisions will influence labor pathways.
Article
Construction & Building Technology
Hossein Omrany, Ruidong Chang, Veronica Soebarto, Yanquan Zhang, Amirhosein Ghaffarianhoseini, Jian Zuo
Summary: This study provides a comprehensive overview of research developments in the field of Net-Zero Energy Buildings (NZEBs) over the past three decades using bibliometric analysis techniques. The study identifies influential researchers, sources, and countries in the field, explores thematic research focus areas and hot topics, and analyzes the thematic evolution of NZEBs. The results indicate that the field has expanded from initial limited themes to encompassing more themes, but is still evolving with emerging themes. This study offers important insights into the research developments and emerging themes in the field of NZEBs.
ENERGY AND BUILDINGS
(2022)
Article
Green & Sustainable Science & Technology
Muhammed Zafar Ali Khan, Haider Ali Khan, Sai Sudarshan Ravi, James W. G. Turner, Muhammad Aziz
Summary: Despite the growing sales of electric vehicles, internal combustion engine-driven vehicles still dominate the global transportation fleet. These vehicles demand large amounts of liquid fuels, primarily fossil fuels. The COVID-19 pandemic affected the energy industry, particularly the transportation sector, leading to reduced emissions but also an economic crisis. The article highlights the need for sustainable and environmentally friendly fuels, discussing the potential of clean fuels and making policy recommendations to address the climate crisis.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Green & Sustainable Science & Technology
Raymond R. Tan, Ivan Henderson V. Gue, John Frederick D. Tapia, Kathleen B. Aviso
Summary: Interactions between government and industry in environmental protection involve leader-follower games, where the government sets policies and the industry reacts accordingly. This paper develops a leader-follower model for selecting carbon emissions mitigation measures, assuming the government determines emissions reduction target, subsidy percentage, and economic penalty. A case study on maritime shipping emissions demonstrates the model's effectiveness, achieving an 11.5% reduction through the implementation of six measures, with only one subsidized. The implications for decarbonization policy are also discussed.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Studies
Anthony Y. Ku, Chris Greig, Eric Larson
Summary: The journey to carbon neutrality requires significant capital investment and guidance from analytical models, but real-time feedback is crucial too. Nations and corporations are transitioning towards clean energy with a lack of confidence in the best route. Developing a navigation app for energy transition that provides real-time guidance would be beneficial, but requires integration of various elements and collaboration with tech companies.
ENERGY RESEARCH & SOCIAL SCIENCE
(2022)
Article
Environmental Sciences
John E. T. Bistline, Christopher W. Roney, David L. McCollum, Geoffrey J. Blanford
Summary: The study emphasizes the impact of electrification on load shapes and peak demand in deep decarbonization pathways. Research results suggest that electrification may lead to peak load increases and shifts from summer peaks to winter ones, especially in cooler climates due to space heating electrification. By exploring the potential impacts of deep decarbonization on regional load shapes and peak electricity demand, researchers aim to better understand the effects of electrification on the power sector.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Review
Energy & Fuels
Haleh Moghaddasi, Charles Culp, Jorge Vanegas, Mehrdad Ehsani
Summary: The paper proposes a Process for Clarification to Accelerate the Net Zero (PC-A-NZ) through three integrated steps to clarify differences in NZ definitions and strategies, and to expedite progress towards NZ targets.
Review
Construction & Building Technology
Sesil Koutra, Jon Teres-Zubiaga, Philippe Bouillard, Vincent Becue
Summary: Positive Energy Districts (PEDs) are becoming increasingly important as urban innovation labs and climate-neutral living strategies. However, the complexity of urban systems leads to multiple challenges. This study critically examines existing methods and tools for PED conception and operation, revealing gaps in human-centric solutions and concrete regulatory frameworks. The importance of citizen empowerment and stakeholder synergies are recognized as crucial for pragmatic and long-term deployment of PEDs. The study contributes to the literature by addressing knowledge gaps and emphasizing the systemic nature of urban scale.
SUSTAINABLE CITIES AND SOCIETY
(2023)
Article
Green & Sustainable Science & Technology
Da Huang, Christian Doh Dinga, Yuan Tao, Zongguo Wen, Yihan Wang, Darine Razmadze
Summary: Steel is crucial for the net-zero transition, and China's iron and steel industry plays a pivotal role in achieving the country's net-zero commitment. This study explores decarbonization pathways in the industry using scenario and uncertainty analysis and finds that uncertainties significantly impact the time and technology mix needed for net-zero emissions. Switching production methods and increasing renewable energy use can reduce emissions, and a combination of measures can achieve energy conservation and pollution reduction targets.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Thermodynamics
Zhoujie Wang, Songyan Li, Zhaomin Li
Summary: The flue gas-assisted steam flooding process can significantly improve oil recovery efficiency and reduce carbon emissions, especially suitable for small-scale steam generators used in oilfields.
APPLIED THERMAL ENGINEERING
(2022)
Article
Energy & Fuels
Songyan Li, Zhiheng Hu, Zhoujie Wang, Yonglin Zhong
Summary: This paper optimized the foaming agent and successfully built a stable oil-based nitrogen foam. The foam stability was investigated under ultrahigh pressure and elevated temperature conditions, and the influence of base oil viscosity, pressure, and temperature on foam stability was examined. The experimental results showed that foam stability improved with increasing pressure and decreasing temperature, and higher base oil viscosity resulted in better foam stability.
Article
Energy & Fuels
Songyan Li, Rui Han, Zhoujie Wang, Zhaomin Li, Na Zhang, Kaiqiang Zhang
Summary: The study introduces a novel thermal SAGD technology with flue gas in the late stage, which improves oil production rate and reduces greenhouse gas emissions. Experimental results show that this technology increases thermal sweep efficiency and leads to higher petroleum fluid recovery.
Article
Engineering, Chemical
Zhoujie Wang, Songyan Li, Shaopeng Li, Jianzhong Zhu, Heng Yang
Summary: The stability mechanism of Span 20, FCO-80, and their mixture FS in a CO2 oil-based foam system was studied using molecular simulation. The sandwich model of CO2 oil-based foam was constructed to analyze the stability from a microscopic perspective. The results showed that FS foam system had larger oil-CO2 distance and coordination number, smaller diffusion coefficients of CO2 molecules, and reduced surface tension compared to individual Span 20 and FCO-80 foam systems, which improved the foam stability. These findings supplement previous experimental results on oil-based foam stability.
Article
Energy & Fuels
Songyan Li, Dongliang Peng, Shibo Feng, Zhoujie Wang, Kaiqiang Zhang
Summary: The study investigates the DME-assisted SAGD technology and its relevant transport and interfacial properties using physical 2D heavy oil simulation. The experiment results demonstrate that DME can reduce heavy oil viscosity and interfacial tension at high temperatures. The addition of DME in the mid-late SAGD stage can achieve higher oil recovery factor and sweep efficiency, and decrease the dew point temperature of the steam chamber. The optimal gas-water ratio is determined to be 3:1, with the fastest oil recovery growth and the highest final cumulative oil-vapor ratio of 0.163.
Article
Energy & Fuels
Zhoujie Wang, Songyan Li, Dongliang Peng, Hao Cheng, Yaohui Wei
Summary: Gas channeling is a common problem in CO2 flooding, which reduces oil production efficiency. The stability of CO2 oil-based foam is crucial for controlling gas channeling and improving oil recovery. This study constructed an oil-based foam system using different surfactants, and investigated the effects of base oil viscosity and gas type on foam stability. The influence of CO2-oil interfacial tension on the stability of oil-based foam was also analyzed. The findings provide valuable insights for understanding the stability mechanism of CO2 oil-based foam under different conditions and controlling gas channeling during CO2 flooding.
Article
Geosciences, Multidisciplinary
Songyan Li, Peng Wang, Zhoujie Wang, Hao Cheng, Kaiqiang Zhang
Summary: Geological CO2 storage is a promising approach to mitigate global carbon emissions, and saline aquifers and oil/gas reservoirs have been proven to be the most suitable storage sites. This paper proposes a novel strategy of enhancing CO2 storage capacity by synthesizing and utilizing high-dryness CO2 foam. Through experiments, it is confirmed that the new foam can effectively increase storage capacity and reduce water consumption.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Chemistry, Physical
Zhoujie Wang, Zijian Cao, Songyan Li, Shaopeng Li
Summary: This study investigates the flow state of a foam system and analyzes the optimal plugging conditions of three-phase foam through resistance factors in sandpack flooding experiments. The research shows that three-phase foam is stable and capable of effective plugging. The highest oil recovery is achieved at a permeability ratio of 9.99 with an oil recovery factor of 80.87%. Three-phase foam flooding has promising application prospects.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Energy & Fuels
Zhoujie Wang, Haiwang Du, Songyan Li, Shaopeng Li
Summary: This study investigates the mixed gas-assisted CSS and mixed gas foam-assisted CSS with different N2/CO2 injection ratios. The results show that the recovery variation can be divided into an increasing phase and a decreasing phase based on the different injection ratios of N2/CO2. In the increasing phase, the viscosity reduction of heavy oil under CO2 dissolution is the dominant factor, while the formation energy increase under N2 expansion is the dominant factor in the decreasing phase. The recovery factor is the highest when the ratio of injected N2/CO2 is 2:1. In addition, adding the A-9 foaming agent solution can increase the cumulative recovery factor by 6.46%.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Songyan Li, Zhoujie Wang, Rui Han, Lei Wang, Zukang Hu
FRONTIERS IN ENERGY RESEARCH
(2020)
