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Karidewa Nyeinga, Ole J Nydal, Denis Okello, Eldad J.K.B. Banda
This study presents a dynamic model for a concentrating solar energy collector with an integrated rock bed heat storage system. The model is based on numerical integration of a set of conservation equations for mass, momentum and energy of the heat carri...
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Dongeun Kim and Yoon Hyeok Bae
Generally, new and renewable energy systems generate electricity by installing and operating multiple modules simultaneously. In the Republic of Korea, recent studies and developments have focused on asymmetric wave energy converters (hereafter referred ...
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Wen Gao, Yanqiang Bi, Xiyuan Li, Apeng Dong, Jing Wang and Xiaoning Yang
Hybrid airships, combining aerodynamic lift and buoyant lift, are efficient near-space aircraft for scientific exploration, observation, and surveillance. Compared to conventional airplanes and airships, hybrid airships offer unique advantages, including...
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Yu Yang, Changhao Xin, Yidan Sun, Junzhen Di and Pengfei Liang
Incomplete data indicate that coal gangue is accumulated in China, with over 2000 gangue hills covering an area exceeding 200,000 mu and an annual growth rate surpassing 800 million tons. This accumulation not only signifies a substantial waste of resour...
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Shiming Wei and Kaixuan Qiu
The extraction of shale gas from onshore and offshore shale gas reservoirs will play an important role in meeting China?s future energy needs, which will not only help alleviate the energy crisis but also contribute to climate change mitigation. As for t...
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Qianyang Li and Xingjun Zhang
For time series forecasting, multivariate grey models are excellent at handling incomplete or vague information. The GM(1, N) model represents this group of models and has been widely used in various fields. However, constructing a meaningful GM(1, N) mo...
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Jian Qin, Zhenquan Zhang, Xuening Song, Shuting Huang, Yanjun Liu and Gang Xue
In order to enhance the power generation efficiency and reliability of wave energy converters (WECs), an enclosed inertial WEC with a magnetic nonlinear stiffness mechanism (nonlinear EIWEC) is proposed in this paper. A mathematical model of the nonlinea...
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Zhigang Ren, Shize Yang, Jiaji Zhang, Qiankun Wang, Shuqiang Gui, Junli Zhou, Yuyang Tang, Ke Zhu, Chuxiong Shen, Zhihua Xiong, Jinlong Sun, Xinpeng Qiu and Zhuo Chen
The discharge of warm water from water source heat pump (WSHP) energy stations can cause local changes in the water temperature, leading to changes in the water quality around and downstream of the discharge outlet, resulting in a cumulative effect that ...
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Changjae Moon, Sanghun Jeong, Giltae Roh and Kido Park
The strengthening of regulations such as EEXI, EEDI, and CII on ship emissions is underway. Despite their application, objective comparisons of ships are hindered by diverse navigation patterns and varying velocity regulations in different seas and ports...
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Diego Fettermann, Pedro Christoffel, Jaime Castillo and Angelo Sant?Anna
The incorporation of renewable energy sources necessitates the upgrade of the electrical grid to a smart grid, which involves the implementation of smart meters. Although smart meters provide benefits to users, many smart meter implementation projects ha...
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