Results 21 to 30 of about 6,073,039 (309)

Suppressing the Vortex Rope Oscillation and Pressure Fluctuations by the Air Admission in Propeller Hydro-Turbine Draft Tube [PDF]

Journal of Applied Fluid Mechanics, 2023
For the purpose of automatic generation control (AGC), a portion of the propeller hydro-turbine units in China is adjusted to operate within a restricted range of 75%-85% load using computer-controlled AGC strategies.
H. Wu, F. Jin, Y. Luo, Y. Ge, Q. Wei, C. Zeng, X. Liu, W. Zhang, D. Miao, H. Bai   +9 more
doaj   +1 more source

Cost Dynamics of Clean Energy Technologies [PDF]

SSRN Electronic Journal, 2021
AbstractThe pace of the global decarbonization process is widely believed to hinge on the rate of cost improvements for clean energy technologies, in particular renewable power and energy storage. This paper adopts the classical learning-by-doing framework of Wright (1936), which predicts that cost will fall as a function of the cumulative volume of ...
Glenk, Gunther, Meier, Rebecca, Reichelstein, Stefan   +2 more
openaire   +6 more sources

Micro–Nano Water Film Enabled High-Performance Interfacial Solar Evaporation

Nano-Micro Letters, 2023
Highlights Micro–nano water film enhanced interfacial solar evaporator enables a high evaporation rate of 2.18 kg m−2 h−1 under 1 sun. An outdoor device with an enhanced condensation design demonstrates a high water production rate of 15.9–19.4 kg kW−1 h−
Zhen Yu, Yuqing Su, Ruonan Gu, Wei Wu, Yangxi Li, Shaoan Cheng   +5 more
doaj   +1 more source

Prediction Method of TBM Tunneling Parameters Based on Bi-GRU-ATT Model

Advances in Civil Engineering, 2022
With tunnel boring machines (TBMs) widely used in tunnel construction, the adaptable adjustment of TBM operating status has become a research focus.
Qinglong Zhang, Boyu Yang, Yanwen Zhu, Chen Guo, Chong Jiao, Anmin Cai   +5 more
doaj   +1 more source

the cost of clean energy [PDF]

Journal of the Air Pollution Control Association, 1969
Municipal and state regulations limiting the allowable sulfur content of fossil fuels are having the effect of changing fuel use patterns of many of the nation’s utilities. The utility companies are faced with increased costs of lower sulfur fuels and capital expenditures associated with the fuel changes, as well as with greater uncertainty concerning ...
openaire   +2 more sources

The macroeconomics of clean energy subsidies

Journal of Environmental Economics and Management, 2023
We study clean energy subsidies in a quantitative climate-economy model. Clean energy subsidies decrease carbon emissions if and only if they lower the marginal productof dirty energy. The constrained-efficient subsidy equals the marginal external cost ofdirty energy multiplied by the marginal impact of clean energy production on dirty energy ...
Gregory Casey, Woongchan Jeon, Christian Traeger   +2 more
openaire   +4 more sources

Influence of carrier effect on Pd/Al2O3 for methane complete catalytic oxidation

Frontiers in Chemistry, 2022
Pd/Al2O3 catalysts modified by different chemical elements (Mg, Si, Ce, and Zr) were tested for methane (CH4) catalytic combustion, and PdO nanoparticles loaded on modified Al2O3 were systematically studied. These conditions assess the carrier effects of
Shengpan Peng, Ziran Ma, Jing Ma, Hongyan Wang, Jingyun Chen, Hui Wei, Yonglong Li, Zhimin Ao, Baodong Wang   +8 more
doaj   +1 more source

Clean Energy Storage Workshop [PDF]

Sustainable Places 2019, 2019
The Clean Energy Package foresees a strong roll out of decentralized energy systems with renewable generation and storage. The STORY project has designed and tested six different storage solutions for a decentralized renewable energy system. In the workshop organised in the frame of SP19 conference, we highlighted some of the economic, social and ...
Zupančič, Jernej, Gubina, Andrej, Tuerk, Andreas, Ala-Juusela, Mia   +4 more
openaire   +4 more sources

Transcriptome and key genes expression related to carbon fixation pathways in Chlorella PY-ZU1 cells and their growth under high concentrations of CO2

Biotechnology for Biofuels, 2017
Background The biomass yield of Chlorella PY-ZU1 drastically increased when cultivated under high CO2 condition compared with that cultivated under air condition. However, less attention has been given to the microalgae photosynthetic mechanisms response
Yun Huang, Jun Cheng, Hongxiang Lu, Yong He, Junhu Zhou, Kefa Cen   +5 more
doaj   +1 more source

Unlocking Commercial Financing for Clean Energy in East Asia [PDF]

, 2013
Overwhelming evidence indicates that climate change, caused in large part by human activities, is already adversely impacting all people, with the very real prospect of worse to come. Nevertheless, a global treaty to curb carbon emissions remains elusive.
Wang, Xiaodong, Mostert, Wolfgang, Zhang, Yabei, Stern, Richard, Limaye, Dilip   +4 more
core   +1 more source