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Three Dimensional Numerical Investigation on the Effect of Wedge Angle of a Passage with Pin-fin Arrays 被引量:3
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作者 changming ling Chunhua MIN Yixian XIAO 《Journal of Thermal Science》 SCIE EI CAS CSCD 2004年第2期138-142,共5页
Heat transfer in passage with pin-fin arrays for cooling blade trailing edge was studied numerically. Three-dimensional numerical simulations were carried out for steady laminar flow in passages with different wedge a... Heat transfer in passage with pin-fin arrays for cooling blade trailing edge was studied numerically. Three-dimensional numerical simulations were carried out for steady laminar flow in passages with different wedge angles between pressure surface and suction surface of cooling blade trailing edge to study the effect of different wedge angles (from 0°to 30°) on heat transfer and pressure losses. Research was carried out for both in-line array and staggered array. From this investigation, wedge angle 10°gives the best heat transfer performance. 展开更多
关键词 trailing edge of TURBINE BLADE PIN-FIN array numerical heat transfer WEDGE angle of passage.
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Economic evaluation of reverse osmosis desalination system coupled with tidal energy 被引量:1
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作者 changming ling Yifei WANG +1 位作者 Chunhua MIN Yuwen ZHANG 《Frontiers in Energy》 SCIE CSCD 2018年第2期297-304,共8页
A reverse osmosis (RO) desalination system coupled with tidal energy is proposed. The mechanical energy produced by the tidal energy through hydraulic turbine is directly used to drive the RO unit. The system perfor... A reverse osmosis (RO) desalination system coupled with tidal energy is proposed. The mechanical energy produced by the tidal energy through hydraulic turbine is directly used to drive the RO unit. The system performances and the water cost of the conventional and tidal energy RO systems are compared. It is found that the proposed tidal energy RO system can save water cost in the range of 31.0%-41.7% in comparison with the conventional RO system. There is an optimum feed pressure that leads to the lowest water cost. The tidal RO system can save more costs at a high feed pressure or a high water recovery rate. The optimum feed pressure of the tidal energy RO system is higher than that of the conventional RO system. The longer lifetime of the tidal energy RO system can save even more water cost. When the site development cost rate is lower than 40%, the water cost of the tidal energy RO system will be lower than that of the conventional RO system. The proposed technology will be an effective alternative desalination method in the future. 展开更多
关键词 reverse osmosis (RO) desalination tidal energy MODEL economic evaluation
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