Open Access
ARTICLE
Hari Swarup Jammulamadaka1, Bhaskaran Gopalakrishnan2,*, Subodh Chaudhari3, Senthil Sundaramoorthy3, Akash Rajesh Mehta2, Roseline Mostafa2
Energy Engineering, Vol.119, No.1, pp. 1-16, 2022, DOI:10.32604/EE.2022.017363
Abstract Fenestration systems are widely used across the world. There is expansive research on window configurations, frames, and glazing technology, but not enough research has been published on reducing window heat loss through heat application to a pane. The presented study attempted to evaluate the performance of heated windows by developing an experimental setup to test a window at various temperatures by varying the power input to the window. Heated double pane window was installed in an insulated box. A temperature gradient was developed across the window by cooling one side of the window using gel-based ice packs. The other face… More >
Open Access
ARTICLE
Asaad H. Sayer1, Mohsin E. Al-Dokheily1, Hameed B. Mahood2,*, Haider M. Khadem1, Alasdair N. Campbell3
Energy Engineering, Vol.119, No.1, pp. 17-34, 2022, DOI:10.32604/EE.2022.017715
Abstract Salinity Gradient Solar Ponds (SGSPs) offer the potential to capture and store solar energy for use in a range of domestic and industrial activities in regions with high solar insolation. However, the evaporation of water from these ponds is a significant problem that must be overcome for them to be deployed successfully. Thus, two ponds were constructed in the city of Nasiriya, Iraq. The two ponds were cylindrical with a diameter of 1.4 m and a total depth of 1.4 m. The water body in the two ponds was constructed with layer depths of 0.5, 0.75 and 0.1 m for… More >
Open Access
ARTICLE
Yadi Qin, Qiyu Weng, Yuqun Zhuo*
Energy Engineering, Vol.119, No.1, pp. 35-47, 2022, DOI:10.32604/EE.2022.015477
（This article belongs to this Special Issue: Advancement of Understanding of PM2.5 and Hg Emissions and Their Control Technologies for Cleaner Combustion)
Abstract In order to improve the ability of SCR catalyst to catalyze the oxidation of gaseous elemental mercury, a series of novel Ce modified SCR (Selection Catalytic Reduction, V2O5–WO3/TiO2) catalysts were prepared via two-step ultrasonic impregnation method. The performance of Ce/SCR catalysts on Hg0 oxidation and NO reduction as well as the catalytic mechanism on Hg0 oxidation was also studied. The XRD, BET measurements and XPS were used to characterize the catalysts. The results showed that the pore volume and pore size of catalyst was reduced by Ce doping, and the specific surface area decreased with the increase of Ce content… More >
Open Access
ARTICLE
Xu Zhao, Houzhang Tan, Fuxin Yang*, Shuanghui Deng
Energy Engineering, Vol.119, No.1, pp. 49-62, 2022, DOI:10.32604/EE.2022.015622
（This article belongs to this Special Issue: Advancement of Understanding of PM2.5 and Hg Emissions and Their Control Technologies for Cleaner Combustion)
Abstract In order to reduce the environmental smog caused by coal combustion, air pollution control devices have been widely used in coal-fired power plants, especially of wet flue gas desulfurization (WFGD) and wet electrostatic precipitator (WESP). In this work, particulate matter with aerodynamic diameter less than 10 μm (PM10) and sulfur oxides (SOx) have been studied in a coal-fired power plant. The plant is equipped with selective catalytic reduction, electrostatic precipitator, WFGD, WESP. The results show that the PM10 removal efficiencies in WFGD and WESP are 54.34% and 50.39%, respectively, and the overall removal efficiency is 77.35%. WFGD and WESP have… More >
Open Access
ARTICLE
Yanxue Li1,*, Weijun Gao1,2, Xiaoyi Zhang2, Wenya Xu1, Yingjun Ruan3, Yinzhong Wang4
Energy Engineering, Vol.119, No.1, pp. 63-81, 2022, DOI:10.32604/EE.2022.016209
（This article belongs to this Special Issue: Advanced Heat Pump Technologies for Renewable Energy Utilization)
Abstract The building sector contributes a large ratio of final energy consumption, and improving building energy efficiency is expected to play a significant role in mitigating its carbon dioxide emission. Herein, we collected the on-site measurement data to investigate the techno-economic performances of different heat pump types that exist in building space heating projects in Qingdao, China. An in-depth analysis revealed the temperature variations of measured low-grade heat sources over the whole heating supply period, and urban sewage water shows high stable heat energy quality compared with seawater and geothermal heat resources. Operational behaviors including cycling inlet and outlet temperature of… More >
Open Access
ARTICLE
Muhammad Uzair*, Salah Al-Kafrawi, Karam Al-Janadi, Ibrahim Al-Bulushi
Energy Engineering, Vol.119, No.1, pp. 83-101, 2022, DOI:10.32604/EE.2022.016411
（This article belongs to this Special Issue: Energy Systems Management and Climate Change)
Abstract This work discusses the importance of monitoring and energy management of green energy resources in order to minimize the negative impacts of electricity generation by regular power plants. The paper introduces a highly efficient, low-cost rooftop photovoltaics (PV) solar panel system which can provide monitoring, controlling and automation. The proposed system is based on Internet of Things (IoT) and can be used to control different utilities in any premises automatically or set by the user-defined priority list, as compared to the existing IoT-based PV systems which can only perform monitoring and maintenance of the PV panels or only certain parameters,… More >
Open Access
ARTICLE
Oleksandr Kovalko1, Tatiana Eutukhova2, Oleksandr Novoseltsev3,*
Energy Engineering, Vol.119, No.1, pp. 103-121, 2022, DOI:10.32604/EE.2022.017709
（This article belongs to this Special Issue: Energy Systems Management and Climate Change)
Abstract The transition to low-carbon development has been recognized as one of the most important directions for the transformation of national economies in most countries. Today we can identify two of the most common service-oriented logical models of this transition. These are models of Service-Dominant Logic and Product-Service Systems that are used in this study to create a service-oriented platform for stimulating business development in the field of energy-related (ER) services. The establishment of such a platform is being considered based on the conceptual provisions of the global business ecosystem. Such a platform has been found to be a powerful tool… More >
Open Access
REVIEW
Zhen Lei1, Xinbao Wang2,*, Shuni Zhou3, Zekun Wang2, Tengyuan Wang2, Yingjian Yang2
Energy Engineering, Vol.119, No.1, pp. 123-143, 2022, DOI:10.32604/EE.2022.016034
Abstract With the continuous utilization of offshore wind resources, the installation depth and capacity of offshore wind turbines are increasing. In order to meet construction requirements of renewable energy, offshore wind farms are bound to develop further and deeper into the sea. As a result, a novel kind of power generation equipment, Floating Offshore Wind Turbines (FOWT), emerges as the times require. Consequently, this paper provides an objective comment on some key scientific difficulties. Firstly, The statistics and forecast of the market demand and installed capacity of offshore wind energy show a steady growth. After that, the advantages of constructing FOWT… More >
Open Access
ARTICLE
Xin He1, Ping Wei2, Xiaoyan Gong1, Xiangfei Meng3, Dong Shan4, Jiawei Zhu5,*
Energy Engineering, Vol.119, No.1, pp. 145-161, 2022, DOI:10.32604/EE.2022.015910
（This article belongs to this Special Issue: Wind Energy Development and Utilization)
Abstract For the past few years, wind energy is the most popular non-traditional resource among renewable energy resources and it’s significant to make full use of wind energy to realize a high level of generating power. Moreover, diverse maximum power point tracking (MPPT) methods have been designed for varying speed operation of wind energy conversion system (WECS) applications to obtain optimal power extraction. Hence, a novel and meta-heuristic technique, named enhanced atom search optimization (EASO), is designed for a permanent magnet synchronous generator (PMSG) based WECS, which can be employed to track the maximum power point. One of the most promising… More >
Open Access
ARTICLE
Yi Liang1,2, Haichao Wang3,*, Wei-Chiang Hong4
Energy Engineering, Vol.119, No.1, pp. 163-188, 2022, DOI:10.32604/EE.2022.017396
（This article belongs to this Special Issue: Renewable Energy Development under Climate Change)
Abstract Photovoltaics (PV) has been combined with many other industries, such as agriculture. But there are many problems for the sustainability of PV agriculture. Timely and accurate sustainability evaluation of modern photovoltaic agriculture is of great significance for accelerating the sustainable development of modern photovoltaic agriculture. In order to improve the timeliness and accuracy of evaluation, this paper proposes an evaluation model based on interval type-2 Fuzzy AHP-TOPSIS and least squares support vector machine optimized by fireworks algorithm. Firstly, the criteria system of modern photovoltaic agriculture sustainability is constructed from three dimensions including technology sustainability, economic sustainability and social sustainability. Then,… More >
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