Results 41 to 50 of about 1,253,627 (291)
IOP Conference Series: Earth and Environment, 2019 In order to be able to draw conclusions on preventing S-shape instabilities in reversible pump-turbines during normal operation, it is important to fully understand their complex nature.
M. Lenarcic, A. Gehrer
semanticscholar +1 more source
Embedding Chemistry and Pharmacy Into Sustainability
Angewandte Chemie International Edition, EarlyView.Chemistry and pharmacy provide products and processes that are indispensable for our high living standard. To understand their relationship with sustainability is important to allow them to contribute to sustainability in a sustainable manner. An integrated overview of green, circular, and sustainable chemistry and pharmacy is given and how they have t
Klaus Kümmerer
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Covalently bonded interfaces for polymer/graphene composites [PDF]
, 2013 The interface is well known for taking a critical role in the determination of the functional and mechanical properties of polymer composites. Previous interface research has focused on utilising reduced graphene oxide that is limited by a low structural
Bengtsson, Carl +6 more
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IOP Conference Series: Earth and Environment, 2019 A typical design scheme for pumped storage hydropower plants (PSPs) involves two or more pump turbines sharing one hydraulic and one electric unit. Load rejection is possible for a single pump turbine.
C. Yin +3 more
semanticscholar +1 more source
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT This study proposes a novel integrated system (SDKC‐DORC) that combines a split‐flow dual‐pressure Kalina cycle with a secondary organic Rankine cycle for the synergistic utilization of solar energy and liquefied natural gas (LNG) cold energy.
Ke Xiao +6 more
wiley +1 more source
Systematic analysis on the energy loss in pump-turbines
Advances in Mechanical EngineeringThe pump-turbine is a key component in pumped-storage power stations, operating under complex conditions. RANS (Reynolds-Averaged Navier-Stokes) is commonly used for numerical simulations, but the differences among various RANS models under different ...
Miao Guo +5 more
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Energies, 2020 This paper presents a multi-objective optimization strategy for pump-as-turbines (PAT), which relies on one-dimensional theory and analysis of geometrical parameters.
Longyan Wang +3 more
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From Bench to Bulk: Investigating Kinetics, Recyclability, and Scale‐Up of ZIF‐67
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Zeolitic imidazolate framework‐67 (ZIF‐67), a subclass of metal–organic frameworks (MOFs), has garnered considerable attention due to its high surface area, open crystal structure, tunable porosity, and potential applications in gas separation, catalysis, and carbon capture.
Aaush Bhardwaj Singh +1 more
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Influence of Zn2+ and Oxygen Supply on Malic Acid Production and Growth of Aspergillus oryzae
Biotechnology and Bioengineering, EarlyView.ABSTRACT Malic acid is a valuable platform chemical traditionally derived from fossil‐based resources. Microbial cultivation with Aspergillus oryzae offers a sustainable alternative based on renewable feedstocks. In this study, a well‐established minimal medium for malic acid production, commonly used in previous research to ensure reproducibility, was
Lukas Hartmann +3 more
wiley +1 more source
Energies, 2022 During the load rejection transient process of the prototype pump turbine units, the pressure fluctuations of the entire flow passage change drastically due to the rapid closing of guide vanes.
Qilian He +5 more
doaj +1 more source