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作者:... Liang Yang , Liang-Liang Shao , Chun-Lu Zhang
来源:[J].International Journal of Thermal Sciences(IF 2.47), 2015, Vol.89, pp.234-244Elsevier
摘要:Abstract(#br)This paper compares the overall thermal performance of refrigerant-to-air finned-tube condensers with elliptical and circular tubes. A distributed-parameter model of the circular-tube and the elliptical-tube condensers is developed and the prediction agrees well...
作者:Liang-Liang Shao , Zi-Yang Zhang , Chun-Lu Zhang
来源:[J].Applied Thermal Engineering(IF 2.127), 2018, Vol.128, pp.173-178Elsevier
摘要:Abstract(#br)CO 2 transcritical cycle has been widely applied in commercial refrigeration and heat pump water heating systems. Its cycle COP (coefficient of performance) heavily depends on the high pressure optimization and control. In theory, the optimal high pressure increases ...
作者:Liang-Liang Shao , Chun-Lu Zhang
来源:[J].International Journal of Refrigeration(IF 1.793), 2016, Vol.64, pp.123-129Elsevier
摘要:Abstract(#br)Transcritical CO 2 cycle has been widely investigated fundamentally and practically. However, transition between subcritical and transcritical CO 2 cycles has not yet been well studied. In this work, temperature at maximum constant-pressure specific heat (pseudocriti...
作者:... Ze-Yu Li , Liang-Liang Shao , Chun-Lu Zhang
来源:[J].International Journal of Refrigeration(IF 1.793), 2014, Vol.48, pp.1-9Elsevier
摘要:Abstract(#br)The paper presents a dimensionless neural network modeling method for the fin-and-tube refrigerant-to-air condensers which are widely used in air-cooled refrigeration and heat pump systems. The model-based dimensional analysis method is applied to develop the dimensi...
作者:... Ze-Yu Li , Liang-Liang Shao , Chun-Lu Zhang
来源:[J].Applied Thermal Engineering(IF 2.127), 2016, Vol.92, pp.210-218Elsevier
摘要:Abstract(#br)Electronic expansion valve (EEV) plays a crucial role in controlling refrigerant mass flow rate of refrigeration or heat pump systems for energy savings. However, complexities in two-phase throttling process and geometry make accurate modeling of EEV flow charac...
作者:... Liang Yang , Liang-Liang Shao , Chun-Lu Zhang
来源:[J].International Journal of Refrigeration(IF 1.793), 2014, Vol.45, pp.107-119Elsevier
摘要:Abstract(#br)With the increasing applications of CO 2 trans-critical cycles, the design of reciprocating compressors returns to the center stage. Quick design and optimization of a compressor with arbitrary configuration is always a big challenge. This paper presents a new g...
作者:... Si-Wei Cai , Liang-Liang Shao , Chun-Lu Zhang
来源:[J].Applied Thermal Engineering(IF 2.127), 2015, Vol.89, pp.656-662Elsevier
摘要:Abstract(#br)CO 2 transcritical cycle has been successful applied in many refrigeration and heat pump systems. High pressure optimization and control play a critical role in maximizing COP (coefficient of performance) of CO 2 transcritical systems. This work reviewed optimal...
作者:Ze-Yu Li , Liang-Liang Shao , Chun-Lu Zhang
来源:[J].International Journal of Refrigeration(IF 1.793), 2015, Vol.59, pp.124-134Elsevier
摘要:Abstract(#br)This paper presents a new approach of combining response surface methodology and neural network for performance evaluation of fin-and-tube air-cooled condensers which are widely used in refrigeration, air-conditioning and heat pump systems. Box–Behnken design (B...
作者:Liang-Liang Shao , Jiang-Cui Wang ...
来源:[J].International Journal of Refrigeration(IF 1.793), 2013, Vol.36 (1), pp.270-278Elsevier
摘要:Abstract(#br)As the refrigerant flow inside the capillary tubes is accompanied with phase change, non-equilibrium between two phases, and critical two-phase flow, capillary tube modeling is not as simple as its simple geometry. For the convenience of engineering applications, man...
作者:Liang-Liang Shao , Liang Yang ...
来源:[J].Energy & Buildings(IF 2.679), 2012, Vol.50, pp.189-195Elsevier
摘要:Abstract(#br)This paper presents a new hybrid steady-state modeling approach for air-conditioning systems. At the system level, it follows the first principles to keep the conservation of mass, energy, and momentum, respectively. At the component level, the physics-based componen...

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