欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
用有限时间热力学理论和方法研究了恒温热源不可逆中冷回热布雷顿热电联产装置的经济性能,导出了无量纲利润率和效率的解析式。讨论了总压比给定和总压比变化两种情形,优化了中间压比,通过数值计算详细分析了各设计参数对循环一般性能和最优性能的影响,发现回热和中冷能够较大地提高装置的利润率和效率,并且随压比的变化对利润率和效率具有不同的影响。讨论了利润率和效率之间的关系,其特性关系为扭叶型。最后发现分别存在最佳用户侧温度使得利润率和效率取得双重最大值。
英文摘要：
The exergoeconomic performance of an irreversible intercooled regenerative Brayton cogeneration plant coupled to constant-temperature heat sources is investigated using finite time thermodynamics.Analytical formulae about dimensionless profit rate and exergy efficiency are deduced.The two cases with fixed and variable total pressure ratios are discussed and the intercooling pressure ratios are optimized.The effects of the design parameters on the general and optimal performance of the cycle are analyzed by detailed numerical examples.It is found that regeneration and intercooling can increase profit rate and exergy efficiency of the cogeneration plant largely and have different effects for profit rate and exergy efficiency with the change of pressure ratios.The relation between profit rate and exergy efficiency is discussed and the characteristic of profit rate versus exergy efficiency is loop-shaped.At last,it is found that there exist optimal consumer temperatures,which can achieve double-maximum profit rate and double-maximum exergy efficiency.
同期刊论文项目
同项目期刊论文
Maximum power output of multistage continuous and discrete isothermal endoreversible chemical engine
Finite time exergoeconomic performance optimization for a universal steady flow irreversible heat pu
Performance optimization of combined Brayton and two parallel inverse Brayton cycles with regenerati
Exergoeconomic performance optimization for a steady-flow endoreversible refrigerator model includin
Local stability of an endoreversible Carnot heat pump with linear phenomenological heat transfer law
Effect of heat transfer on the performance of thermoelectric generator-driven thermoelectric refrige
Thermodynamic modelling for open combined regenerative Brayton and inverse Brayton cycles with regen
Performance analysis and optimization of a single barrier solid-state thermionic refrigerator with e
Effects of heat reservoir temperatures on performance of thermoelectric heat pump driven by thermoel
Multivariable optimization of a two-stage thermoelectric refrigerator driven by a two-stage thermoel
Optimal paths for minimizing entransy dissipation during heat transfer processes with generalized ra
Heating load and COP optimizations for a class of generalized irreversible universal steady flow var
Power-optimization of non-ideal energy converters under generalized convective heat transfer law via
Finite time exergoeconomic performance optimization of a thermoacoustic cooler with a complex heat t
The optimal path of piston motion of irreversible Otto cycle for minimum entropy generation with rad
Exergoeconomic performance analyses of an endreversible intercooled regenerative Brayton cogeneratio
Modeling and performance analysis of energy selective electron (ESE) engine with heat leakage and tr
Performance prediction and irreversibility analysis of a thermoelectric refrigerator with finned hea
Thermodynamic optimization for an open cycle of externally fired micro gas turbine (EFmGT) Part 1: T
Finite time exergoeconomic performance of an irreversible intercooled regenerative Brayton cogenerat
Optimal piston speed ratios for irreversible Carnot refrigerator and heat pump using finite time the
Constructal entransy dissipation rate minimization for a heat generating volume cooled by forced con
Finite-time exergoeconomic performance of an endoreversible Carnot heat engine with complex heat tra
Comparative study on constructal optimizations of T-shaped fin based on entransy dissipation rate mi
Optimizing piston velocity profile for maximum work output from a generalized radiative law Diesel e
Exergetic performance optimization of an endoreversible intercooled regenerated Brayton cogeneration
Performance optimization of a total momentum filtered energy selective electron (ESE) heat engine wi
Ecological performance optimization for an open-cycle ICR gas turbine power plant. Part 2: Optimizat
Constructal optimization of a vertical insulating wall based on a complex-objective combining heat f
Ecological performance optimization for an open-cycle ICR gas turbine power plant. Part 1: Thermodyn
Constructal optimization of twice level Y-shaped assemblies of fins by taking maximum thermal resist
time exergoeconomic performance optimization for an irreversible universal steady flow variable-temp
Maximum efficiency of an irreversible heat engine with a distributed working fluid and linear phenom
Maximum work output of multistage continuous Carnot heat engine system with finite reservoirs of the
Performance characteristic of energy selective electron (ESE) heat engine with filter heat conductio
Optimal expansion of a heated working fluid for maximum work output with time-dependent heat conduct
Optimizations of a model external combustion engine for maximum work output with generalized convect
Effects of unequal finite piston speeds on the optimal performances of endoreversible Carnot refrige
Exergoeconomic optimal performance of an irreversible closed Brayton cycle combined cooling, heating
Exergoeconomic performance optimization of an endoreversible intercooled regenerated Brayton cogener
Heating load, COP, exergy loss rate, exergy output rate and ecological analyses and optimizations fo
Ecological performance of a generalized irreversible Carnot heat engine with complex heat transfer l
A numerical model and comparative investigation of a thermoelectric generator with multi-irreversibi
Modelling and performance analysis for endreversible Meletis-Georgiou cycle with non-linear relation
Optimal process durations of expansion of a heated working fluid with linear phenomenological transf
Local stability of a generalized irreversible Carnot engine working at the maximum ecological functi
Performance of irreversible Meletis-Georgiou vane rotary engine cycle with variable specific heats o
Internal and external simultaneous optimization of an irreversible multielement thermoelectric gener
Exergy optimization for irreversible closed Brayton cycle combined cooling, heating and power genera
Maximum power output of multistage irreversible heat engines under a generalized heat transfer law b
Performance analysis for an irreversible combined thermionic-thermoelectric generator with finite ra
Performance optimization for two classes of combined regenerative Brayton and inverse Brayton cycles
Finite time exergoeconomic performance of a real intercooled regenerated gas turbine cogeneration pl
Constructal minimization of emitter grid resistance for a solar cell with variable cross-section col
Performance comparison of an endoreversible closed variable-temperature heat reservoir intercooled r
Optimization of a model external combustion engine for maximum work output with generalized radiativ
Maximum power and efficiency of an irreversible thermoelectric generator with a generalized heat tra
Optimum variables selection of thermoelectric generator-driven thermoelectric refrigerator at differ
Thermodynamic optimization for open regenerated inverse Brayton cycle (refrigeration/heat pump cycle
Performance characteristics of the multielement thermoelectric generator with radiative heat transfe
Fundamental optimal relation of a generalized irreversible quantum Carnot heat pump with harmonic os
Influence of variable specific heats of working fluid on performance of an endreversible Meletis-Geo
期刊信息
位置：