The definition of non-dimensional integration temperature difference and its effect on organic Rankine cycle

Yang, Xufei; Xu, Jinliang; Miao, Zheng; Zou, Jinghuang; Qi, Fengliang

doi:10.1016/j.apenergy.2016.01.037

Cited by 16 publications

(2 citation statements)

References 47 publications

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“…The system net power output of 1.881kW included the pump consumption and resulted in a thermal cycle eciency of 5.33% at the optimum expander torque of 15.51Nm and a pump speed of 480rpm. In another work, Yang et al (2016) [101] emphasised that the ORC system performance is strongly related to the heat source and environmental temperature which can be captured by the non-dimensional integration temperature dierence (∆ T * i,s ). It enables the better optimisation of the enthalpy dierence dening the applied pressure ratio to the expander.…”

Section: Lemort Et Al (2012) [99] Built a Micro-scale Orc System Incmentioning

confidence: 99%

A review of scroll expander geometries and their performance

Emhardt

Tian

Chew

2018

Applied Thermal Engineering

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Section: Lemort Et Al (2012) [99] Built a Micro-scale Orc System Incmentioning

confidence: 99%

A review of scroll expander geometries and their performance

Emhardt

Tian

Chew

2018

Applied Thermal Engineering

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“…In addition, other thermodynamic optimization models, such as, the organic rankine cycle converting a low grade thermal energy to mechanical work, have been widely investigated by considering the exergy destructions of the system components 5 – 10 . The effects of the heat transfer roadmaps and the integration temperature difference on the thermodynamic property of the thermal engines have been analyzed in detail 11 , 12 .…”

Section: Introductionmentioning

confidence: 99%

Dynamic robustness of endoreversible Carnot refrigerator working in the maximum performance per cycle time

Lü

Nie

2018

Sci Rep

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In this work, we study the dynamic robustness of an endoreversible Carnot cycle working at the maximum per-unit-time performance regime, based on the linearization technique for dynamical systems and the local stability analysis. Our analysis is focused on the endoreversible Carnot refrigerator model, which works in the maximum per-unit-time coefficient of performance. At the steady-state of the maximum performance, the expressions of the relaxation times describing the stability of the system are derived. It is found that the relaxation times in the cycle condition are the function of thermal conductances σh and σc, the temperatures of the heat reservoirs Th and Tc, and the heat capacity C. The influence of the temperature ratio τ = Tc/Th and the thermal conductance ratio σr = σh/σc on the relaxation times is discussed in detail. The results obtained here are useful and provide a potential guidance for the design of an endoreversible Carnot refrigerator working in the maximum performance per cycle time optimization condition.

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Shift-characteristics and bounds of thermal performance of organic Rankine cycle based on trapezoidal model

Wang

2018

Sci. China Technol. Sci.

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The definition of non-dimensional integration temperature difference and its effect on organic Rankine cycle

Cited by 16 publications

References 47 publications

A review of scroll expander geometries and their performance

A review of scroll expander geometries and their performance

Dynamic robustness of endoreversible Carnot refrigerator working in the maximum performance per cycle time

Shift-characteristics and bounds of thermal performance of organic Rankine cycle based on trapezoidal model

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