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赛德西港用于船舶减排的陆上可再生能源供电评估

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哈尔滨工程大学学报（英文版） 2024年第2期23卷 506-524页

作者： Merna Makram Ameen M.Bassam Adel A.Tawfik Waleed Yehia Naval Architecture and Marine eng.Dept. Faculty of EngineeringPort Said UniversityPort Fuad 42526Egypt

Air pollution from shipping is becoming a critical issue,particularly in dense hub port *** proposed solution to minimize ship-based emissions at ports is the implementation of an Onshore power Supply(OPS)*** allows ships to shut off their auxiliary engines and instead connect to the port *** there have been numerous studies conducted on ports in Europe and the United States,little research has been done on Egyptian ***,this paper aims to investigate the feasibility of implementing OPS at Port Said West Port in Egypt,aligning with Egypt Vision 2030’s goals for addressing climate *** research primarily focuses on analyzing data collected from calling ships to generate socio-economic and cost-effectiveness analyses of *** further enhance the environmental benefits of OPS,the paper proposes the use of solar energy as the OPS electricity *** findings of the study revealed that by relying on the national grid,emissions can be reduced by 28%.Moreover,it is predicted that this reduction could reach 100%if electricity generation is solely based on solar ***,the economic analysis demonstrates promising profitability,with a payback period of approximately two years.

关键词： Onshore power supply Port sustainability Shipping emissions inventory Solar energy Photovoltaic systems

Direct Numerical Simulation of Particle Dispersion in the Flow Around a Circular Cylinder

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Journal of Thermal Science 2004年第4期13卷 344-349页

作者： Lan Liu Feng Ji Jianren Fan Kefa Cen Inst. of Thermal power eng. Zhejiang Univ. Hangzhou 310027 China

The major objective of the paper is to use direct numerical simulation method to get the dispersion patterns of different Stokes number particles in cylinder wake at low Reynolds numbers. The gas fluid structure is simulated by a spectral-element method with third-order accuracy. Non-reflecting boundary condition is specified for the outlet downstream boundary. Lagrangian approach is used to trace particle trajectory. The simulation results show factors to be considered to characterize the particle dispersion and find different particle dispersion pattern in a circular cylinder wake and in a plane wake.

关键词： direct numerical simulation wake particle dispersion gas-solid fluid.

Feature Abstracting and Identification of Acoustic Target in the Battle Field Based on EMD

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Journal of Shanghai Jiaotong university(Science) 2007年第4期12卷 525-529页

作者：蔡少川张国伟 Dept.of Physics & Electromechanical eng.of Sanming Univ. School of Electric power and Automation eng. Shanghai Univ.of Electric Power

The method of empirical mode decomposition(EMD) was used for the signal processing and featureing of acoustic target of battle field. According to the signal's characteristics of different targets, some feature vectors in token of the target properties were constructed and abstracted. In the basis of feature abstracting and statistic analysis for large amount of sample signal of the targets, using the maximum subjection classification method based on the fuzzy synthesis judgment, the three typical acoustic target helicopter, tank and traffic vehicle were recognized.

关键词： empirical mode decomposition (EMD) acoustic target fuzzy synthesis judgment

THEORETICAL STUDY OF HEAT TRANSFER ENHANCEMENT IN PIPE WITH POROUS BODY

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Journal of Hydrodynamics 2001年第1期13卷 111-116页

作者： Gong, W.P. Han, J.T. Cheng, F. Dep. of power eng. Shandong Univ. Jinan 250061 China

A theoretical investigation on the fluid flow and heat transfer in a pipe with porous body of high porosity twisted by metal wire was carried out. A theoretical model of a circular pipe with porous matrix attached at the channel wall and extended inward the centerline was set up. Through analyzing the flow in the porous matrix by the Brinkman-extended-Darcy equation and through including the effect of dispersion by adding the dispersion coefficient into the energy equation, the theoretical solutions of velocity distribution and temperature fields were obtained. Finally the effect of the properties of the porous matrix on the flow and heat transfer in the porous body was studied, which indicates that dispersion can really enhance the heat transfer in pipe.

关键词： Computer simulation Dispersions Mathematical models Pipe flow Porosity Porous materials

Convective Boiling of Near-Azeotropic Refrigerant R410A in the Horizontal Micro-fin Tube

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Journal of Shanghai Jiaotong university(Science) 2007年第1期12卷 73-75,80页

作者：段雪涛马虎根邬志敏王芳 College of power eng. Univ. of Shanghai for Science and Technology

Using near-azeotropic refrigerant R410A as the working fluid, the experimental studies on the horizontal micro-fin tubes were conducted. Several factors affecting heat transfer coefficients were analyzed, and the characteristics of flow boiling of the refrigerant in the horizontal micro-fin tubes were discussed. The local heat transfer coefficients increase with mass flux, heat flux and quality. And the heat transfer enhancement factor of those testing tubes is about 1.6 to 2.2.

关键词： horizontal micro-fin tube near-azeotropic refrigerant convective evaporation heat transfer

A PARTITIONING PARALLEL PROCEDURE FOR NUMERICAL SIMULATION OF GAS FLOW IN A CYCLONE SEPARATOR

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Journal of Hydrodynamics 2002年第1期14卷 52-58页

作者： Huang Rong-guo, Huan Bo-wen, Zhang Shu-ping (School of power and Energy engineering, Shanghai Jiaotong Univers ity, Shanghai 200240, China) Sch. of power and Energy eng. Shanghai Jiaotong Univ. Shanghai 200240 China

Based on the SIMPLE-C algori thm and the non-overlapping Domain Decomposition Method (DDM), in which the Dirichlet-N eumann alternative algorithm is employed, a partitioning parallel procedure was developed to numerically simulate fluid flow in complex 3-D domains. It can well remove the limitation of speed and capacity of personal computer on large-scale numerical simulation of complex 3-D domains. In this paper, the 3-D turbulent swirling gas flow in cyclone separator was simulated. In view of the physica l reality, the computational results are bascally reasonable.

关键词： SIMPLE-C algorithm Domain Decompos ition Method (DDM) Dirichlet-Neumann alternative algorithm cyclone separator

EFFECT OF COOLED BOUNDARY ON THE TURBULENT STRUCTURE

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Journal of Hydrodynamics 2003年第5期15卷 54-59页

作者： Li Guo xiang, Mao Hua yong, Li Na School of Energy and power engineering, Shandong University, Jinan 250061, China, Sch. of Energy and power eng. Shandong Univ. Ji'nan 250061 China

The flow field in the cooled channel of a heat exchanger was measured usingthe X-type film probes of Hot Wire/Firm Anemotheter, and the turbulent mechanism was discussed. Itis concluded that the airflow is cooled in the flow process, the distribution of the turbulentintensity is relatively convergent near the centcrline and the boundary, the constriction actionproduced due to heat release at the foot of the fins causes u to decrease and w to increase near theroot downstream. It is concluded that the turbulent flow with cooled boundary results from thebalance of production, dissipation and intermittency caused by constriction action.

关键词： heat exchanger cooling turbulent structure

3-D MEASUREMENT OF VORTEX BREAKDOWN IN CLOSED CYLINDRICAL CONTAINER VIA LDV

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Journal of Hydrodynamics 2001年第2期13卷 24-28页

作者： Liu, Y.Z. Chen, H.P. Koyama, H.S. Sch. of power and Energy eng. Shanghai Jiaotong Univ. Shanghai 200030 China

A 3-D velocity measurement was carried out via LDV for vortex breakdown of swirling flow in a closed cylindrical container with a rotating disk. The experimental results of swirling flow at Ar=1.78 and Re=648-2527 are presented. At the axis, the axial velocity variation with Re describes the formation, development and disappearance of the vortex breakdown, which agrees with Escudiers's conclusion. In the meridional plane, the velocity vectors show that the bubble type vortex breakdown region is a closed and low velocity circulating flow, which is fully isolated from the main flow thrown out by the rotating disk. For the peripheral velocity in the central region of the container, the maximum does not appear near the rotating top disk but near the stationary bottom disk and it varies sharply there. Numerical simulation results under the same conditions are also given in this paper.

关键词： Computer simulation Containers Test facilities Three dimensional Velocity measurement

EXPERIMENTAL STUDY ON ENHANCED HEAT TRANSFER WITH NI-BASED IMPLANTED SPIRAL FINNED TUBES

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Journal of Hydrodynamics 2003年第5期15卷 65-69页

作者： Sun Feng zhong, Huang Xin yuan, Wang Nai hua, Shi Yue tao, Ping Ya ming School of Energy and power engineering, Shandong University, Jinan 250061, China Sch. of Energy and power eng. Shandong Univ. Ji'nan 250061 China

The new type of heat exchanger elements-Ni-based Implanted Spiral FinnedTurbes (NISFT) was studied and tested, which can contribute to increase the efficiency andreliability. The relation of Nu, Eu and Re with different fin pitch, fin height, transverse pitchand longitudinal pitch were gained, which constituted the basic foundation for the engineeringapplication of NISFT.

关键词： enhanced heat transfer heat exchanger finned tube