Results 11 to 20 of about 209,596 (313)

Time series aggregation for energy system design: review and extension of modelling seasonal storages

Energy Informatics, 2022
Using optimization to design a renewable energy system has become a computationally demanding task as the high temporal fluctuations of demand and supply arise within the considered time series.
Tobias Blanke, Katharina S. Schmidt, Joachim Göttsche, Bernd Döring, Jérôme Frisch, Christoph van Treeck   +5 more
doaj   +1 more source

Study on the Vibration Characteristics of Marine Riser Based on Flume Experiment and Numerical Simulation

Journal of Marine Science and Engineering, 2023
This study investigated vortex-induced vibrations of marine risers in Ocean Thermal Energy Conversion systems. Flume experiments were conducted under two conditions: Condition 1 was with a fixed riser bottom, and Condition 2 was with a fixed bottom on a ...
Qiurui Cai, Zhengnong Li, Ricky W. K. Chan, Han Luo, Guodi Duan, Bin Huang, Honghua Wu   +6 more
doaj   +1 more source

Opportunities of energy saving in lighting systems for public buildings

Renewable Energy and Sustainable Development, 2017
The lighting system provides many options for cost-effective energy saving with low or no inconvenience. Lighting improvements are excellent investments in most public buildings, it is usually cost-effective to address because lighting improvements are ...
Ayman Abd El-khalek, Kamelia Youssef, Ibrahim Yassin   +2 more
doaj   +1 more source

Hysteresis Performance and Restoring-Force Model of Precast Concrete Ring-Lap Beam-Column Joints

Buildings, 2023
In order to study the restoring-force characteristics of precast concrete ring-lap beam-column joints, three precast concrete ring-lap beam-column joint specimens and one cast-in-place concrete beam-column joint specimen were designed and fabricated, and
Min Zhang, Zhengrong Xue, Yihu Chen, Dan Lu, Wen Qin, Wei Yu   +5 more
doaj   +1 more source

A General Analytical Solution for Axisymmetric Consolidation of Unsaturated Soil with Impeded Drainage Boundaries

Geofluids, 2021
The consolidation of soil is one of the most common phenomena in geotechnical engineering. Previous studies for the axisymmetric consolidation of unsaturated soil have usually idealized the boundary conditions as fully drained and absolutely undrained ...
Ming-hua Huang, Chang Lv, Zheng-lin Zhou
doaj   +1 more source

Development and thermal properties of a novel sodium acetate trihydrate-Acetamide-micron/nano aluminum nitride composite phase change material

Materials & Design, 2020
Heat storage phase change materials (PCM) has been widely used in various thermal energy systems, such as solar-heat pump. Harvesting solar energy requires low-cost and efficient PCM with proper melting points and high energy absorbing capacity.
Fengping Wu, Zhongqi Lin, Tao Xu, Jiayu Chen, Gongsheng Huang, Huijun Wu, Xiaoqing Zhou, Dengjia Wang, Yanfeng Liu, Jianqing Hu   +9 more
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Personal Climatization Systems—A Review on Existing and Upcoming Concepts

Applied Sciences, 2018
To accomplish the current climate goals of the federal republic of Germany, energy efficiency within the building and automotive sector must improve considerably. One possible way to reduce the high amount of energy required for heating, ventilation, and
Alexander Warthmann, Daniel Wölki, Henning Metzmacher, Christoph van Treeck   +3 more
doaj   +1 more source

Study on the hybrid energy storage for industrial park energy systems: Advantages, current status, and challenges

National Science Open, 2023
In order to increase the renewable energy penetration for building and industrial energy use in industrial parks, the energy supply system requires transforming from a centralized energy supply mode to a distributed + centralized energy supply mode.
Guo Jiacheng, Peng Jinqing, Luo Yimo, Zou Bin, Luo Zhengyi   +4 more
doaj   +1 more source

Impacts of temperature and humidity changes on air‐conditioning design load under the climate change conditions in different climate zones of China

Meteorological Applications, 2021
Meteorological parameters, as the important basis for improving building energy efficiency, will show apparent changes under climate change conditions.
Jingfu Cao, Mingcai Li, Min Wang, Bojia Li   +3 more
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An efficient climate index for reflecting cooling energy consumption: Cooling degree days based on wet bulb temperature

Meteorological Applications, 2021
Cooling energy consumption of buildings is not only used for decreasing temperature, but for dehumidification. Therefore, cooling degree day (CDD) based on only temperature is insufficient for estimating the cooling energy consumption in buildings.
Jingfu Cao, Mingcai Li, Ruixue Zhang, Min Wang   +3 more
doaj   +1 more source