The separation and purification of methane from natural gas are crucial chemical processes. Herein, we report a Zn-cluster-based MOF (SdMOF-3), enabling the efficient separation of mixed low-carbon alkanes. The unique...
In North American railway industry, the truck design generally takes into consideration of several factors, e.g. the axle load, maximum operating anddesign speed, new and worn wheel diameter, arrangement of journal b...
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Energy storage technology is an essential part of the efficient energy *** air energy storage(CAES)is considered to be one of the most promising large-scale physical energy storage *** is favored because of its low-co...
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Energy storage technology is an essential part of the efficient energy *** air energy storage(CAES)is considered to be one of the most promising large-scale physical energy storage *** is favored because of its low-cost,long-life,environmentally friendly and low-carbon *** compressor is the core component of CAES,and the performance is critical to the overall system *** importance is not only reflected in the design point,but also in the continuous efficient operation under variable working *** diagonal compressor is currently the focus of the developing large-scale CAES because of its stronger flow capacity compared with traditional centrifugal *** the diagonal compressor has the higher single stage pressure ratio compared with axial *** this paper,the full three dimensional numerical simulation technologies with synergy theory are used to compare and analyze the internal flow *** performance of the centrifugal anddiagonal impellers that are optimized under the same requirements for large-scale CAES has been *** relationship between the internal flow characteristics and performance of the centrifugal anddiagonal impellers with the change of mass flow rates and total inlet temperature is given qualitatively and *** the cosine value of the synergy angle is high,the local flow loss is *** smaller proportion of the positive area is the pursuit of *** comparative analysis,it is concluded that the internal flow and performance changes of centrifugal anddiagonal impellers are *** results confirm the superiority and feasibility of the off-design performance of the diagonal compressor applied to the developing large-scale CAES.
As a kind of large-scale physical energy storage,compressed air energy storage(CAES)plays an important role in the construction of more efficient energy system based on renewable energy in the *** with traditional ind...
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As a kind of large-scale physical energy storage,compressed air energy storage(CAES)plays an important role in the construction of more efficient energy system based on renewable energy in the *** with traditional industrial compressors,the compressor of CAES has higher off-design performance *** the perspective of design,it needs to pay attention not only to the performance of the design point,but also to the performance of all the stable working ***,from the previous literature,no diagonal compressor was used in CAES which can meet the requirements,which also reflects the design program can be further ***,this paper studies the design strategy of high efficient diagonal compressor for large-scale CAES,and gives the complete strategy algorithms used fordifferent program *** pressure ratio,isentropic efficiency and stable working range are comprehensively *** the design process,the criteria for the key parameters of the diagonal flow angle of the diagonal compressor are given for the first *** results show that the isentropic efficiency at the design point is 92.7%,the total pressure ratio is1.97,and the stable working range exceeds 20%,which meets the design requirements of the compressor for CAES and exceeds the overall performance of the previous compressors in the entire working range.
The main challenge of ultrasound-guided minimally invasive surgeries is to carry out treatments through small boreholes in the patient's body surface with sub-millimetric accuracy and facility offered by ultrasoun...
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Extracting the heat from the liquid metal with the help of the water-cooled casterrolls (designed with core and shrink-fitted shell) and then reaching as-cast strip in various thicknesses with different casting speed...
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In this research, we describe a facile design of white organic light emitting diode (WOLEd) displays applicable to 8K4K resolution of large-area displays. We demonstrated a 13.3-inch diagonal size (166 pixel-per-inch)...
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The increasing use of power electronics equipment in various operating environments has raised concerns about the space charge accumulation in insulation materials, especially in high-radiation environments. In order ...
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The cable stacked by high temperature superconducting tapes have strong anisotropic magnetic fielddependence due to the fundamental anisotropic property inherited from reBCO materials. With the number of tapes increa...
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