Experimental investigation of the performance of a single-stage auto-cascade refrigerator [PDF]
Heat and Mass Transfer, 2015 Auto-refrigerating cascade (ARC) systems possess many advantages comparing with traditional cascade refrigeration systems. This work proposed a novel ternary mixture, R600a/R23/R14, for ARC systems for 190 K applications. The performance of the ternary mixture and the influences of compositional ratio and bypass scheme were assessed in a modified ...
Rui, S, Zhang, H, Zhang, B, Wen, D
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Experimental Study of the effects of Throttle valve on Auto-cascade Refrigeration System [PDF]
Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering, 2015 The objection of this article is to optimize auto-cascade refrigeration system. This refrigeration system use multiple mixture (R22/R23/R14) as the refrigerant, which is driven by the single-stage compressor. Throttle is an important composition of auto-cascade refrigerant system, which impact on evaporation temperature and refrigeration efficiency ...
Li Xiang +6 more
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Concentration Optimization of R134a/R123 in Auto-cascade Heat Pump Systems
Zhileng xuebao, 2009 杜垲, 徐卫荣
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Auto-tuning for cascade PID height position controller of rotorcraft [PDF]
MATEC Web of Conferences, 2019 In this article, we present a method for tuning controller parameters for cascade PID based on the step response performance characteristics of a closed loop system with application to an unmanned aerial vehicle(UAV).
Liao Guiqiu, Zhao Jiankang
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The Relation of Performance Parameters for a 150K Auto-Cascade Refrigeration System
Research Journal of Applied Sciences, Engineering and Technology, 2013 The performance parameters of a single compressed and four-stage segregating auto-cascade refrigeration system were developed in this study. The temperature of the cryogenic tank went down relatively slow with the evaporating temperature and the refrigerant temperature for W. When the state of system is steady, the suction pressure of the compressor is
XueLi Nie +3 more
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Research on control method of active disturbance quadrotor aircraf
Dianzi Jishu Yingyong, 2019 In order to solve the problem that the classical PID control algorithm can not adapt to the nonlinear controlled system,the robustness is weak and the anti-interference ability is poor,a control method was designed based on classical PID control and auto
Zhang Xiaoming, Yu Jiyan, Wang Kunkun
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Molecular dynamics simulation of non-azeotropic refrigerants separation in auto-cascading refrigeration [PDF]
E3S Web of Conferences, 2019 The core problem of auto-cascading refrigeration is the separation of non-azeotropic refrigerants. The separation effect of mixed refrigerant directly determines the refrigeration effect of auto-cascading refrigeration system and the value of COP. The microscopic molecular dynamics simulation method is applied to the refrigeration system, and the ...
Zheng Dayu +3 more
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Performance assessment of a novel auto-cascade heat pump using low-GWP refrigerant for obtaining high-temperature water [PDF]
International Journal of Fluid EngineeringWith the aim of developing a high-temperature heat pump with a large temperature lift, a novel auto-cascade heat pump using low global warming potential (GWP) refrigerant is proposed. Owing to the large exergy destruction between the refrigerant and heat
Gang Yan, Yuqing Yang, Yinlong Li
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Phospho-regulation of the Neurospora crassa septation initiation network. [PDF]
PLoS ONE, 2013 Proper cell division is essential for growth and development of uni- and multicellular organisms. The fungal septation initiation network (SIN) functions as kinase cascade that connects cell cycle progression with the initiation of cytokinesis.
Yvonne Heilig +2 more
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The study of thermodynamic properties of zeotropic mixtures of R600a/R23/R14
Advances in Mechanical Engineering, 2017 Thermodynamic properties of zeotropic mixtures of R600a/R23/R14 have been investigated and calculated based on the established mathematical model. The deviations of bubble pressure and vapor composition between the simulation results and the experimental
Yinlong Wu +4 more
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