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Study on the Performance of Organic Rankine Cycle-Heat Pump (ORC-HP) Combined System Powered by Diesel Engine Exhaust; 用于柴油机尾气余热回收的ORC-HP联合系统性能研究
Authors: ZHAO Tenglong1,2, YU Fei1,2, ZHANG Hongguang1,2*,* , et al.
Institution:1. College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
Keywords:organic Rankine cycle, heat pump, combined system, total efficiency, COPh
Volume 28, Issue 5: 1065-1077, 2019 | PDF
Published: Sept. 16, 2019
Abstract: This study presents an ORC-HP combined system driven by diesel engine exhaust. This paper focuses on the feasibility and performance of the combined system under heating mode to heat a coach. The p...
Coupling Effect of Heat Transfer and Flow Resistance in the Rifled Tube Water Wall of a Ultra-Supercritical CFB Boiler; 超临界W火焰锅炉内螺纹管水冷壁流动和阻力耦合效应研究
Authors: LI Yaode1,2, YANG Dong1*, OUYANG Shijie1 et al.
Institution:1. State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Keywords:supercritical pressure, heat transfer, frictional resistance, coupling effect
Volume 28, Issue 5: 1078-1088, 2019 | PDF
Published: Sept. 5, 2019
Abstract: The coupling factor is used in this study to characterise the combined effect of the heat transfer and resistance characteristics of a rifled tube. Boundary layer theory is utilised to investigate ...
Review of the Working Fluid Thermal Stability for Organic Rankine Cycles;有机朗肯循环工质热稳定性研究进展综述
Authors: DAI Xiaoye, SHI Lin*, QIAN Weizhong
Institution:Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
Keywords:organic Rankine cycle (ORC), working fluid, thermal stability
Volume 28, Issue 4: 597-607, 2019 | PDF
Published: July 5, 2019
Abstract: The organic Rankine cycle (ORC) is an efficient power generation technology and has been widely used for renewable energy utilization and industrial waste heat recovery. Thermal stability is a sign...
Selection and Evaluation of Dry and Isentropic Organic Working Fluids Used in Organic Rankine Cycle Based on the Turning Point on Their Saturated Vapor Curves;基于饱和蒸气线上转折点的干工质和等熵工质的选择与评价
Authors: ZHANG Xinxin*, ZHANG Congtian, HE Maogang et al.
Institution:MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
Keywords:dry fluid, isentropic fluid, turning point, saturated vapor curve, near-critical region triangle, Organic Rankine Cycle
Volume 28, Issue 4: 643-658, 2019 | PDF
Published: July 5, 2019
Abstract: The organic Rankine cycle (ORC) is a popular technique used in the utilization of low-grade thermal energy. Among wet, dry, and isentropic organic working fluids, the latter two types are more appr...
Thermodynamic Analysis and Optimization of an Irreversible Maisotsenko- Diesel Cycle;不可逆Maisotsenko-Diesel循环热力学分析与优化
Authors: ZHU Fuli, CHEN Lingen*, WANG Wenhua
Institution:College of Power Engineering, Naval University of Engineering, Wuhan 430033, China
Keywords:Maisotsenko-Diesel cycle, finite-time thermodynamics, power output, thermal efficiency, performance optimization
Volume 28, Issue 4: 659-668, 2019 | PDF
Published: July 5, 2019
Abstract: So far, Maisotsenko cycle has been applied to many fields such as heating ventilation and air-conditioning, power industry, chemical production, and so on. A lot of researches about classical therm...
Numerical Investigation of the Effect of Hydrogen Enrichment on an Opposed-Piston Compression Ignition Diesel Engine;掺氢对双对置柴油机影响的数值模拟
Authors: ZHOU Jianhao*, SHENG Xueshuang, HE Longqiang
Institution:JiangSu Province Key Laboratory of Aerospace Power System, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Keywords:two-stroke, opposed-piston compression ignition, hydrogen, combustion
Volume 28, Issue 4: 669-681, 2019 | PDF
Published: July 5, 2019
Abstract: High power-to-weight and fuel efficiency are bounded with opposed-piston compression ignition (OPCI) engine, which makes it ideal in certain applications. In the present study, a dynamic three-dime...
Experimental Study on Thermal Balance of Regulated Two-Stage Turbocharged Diesel Engine at Variable Altitudes 两级可调增压柴油机变海拔热平衡试验研究
Authors: LIU Ruilin, YANG Chunhao*, ZHANG Zhongjie et al.
Institution:Machinery Industry Key Laboratory for Engine Plateau Adaptation, Army Military Transportation University, Tianjin 300161, China
Keywords:regulated two-stage turbocharged, diesel engine, VGT vane opening, variable altitudes, thermal balance
Volume 28, Issue 4: 682-694, 2019 | PDF
Published: July 5, 2019
Abstract: It is significant to study thermal balance of diesel engine under different variable geometry turbocharger (VGT) vane openings at variable altitudes, which is helpful to assess the heat distributio...