Optimal allocation and effectiveness of the heat exchangers for a power plant with two like-Carnot cycles

8th International Congress of Engineering Physics

物理学;工业技术

Aragón-González, G.^1 ; León-Galicia, A.^1

Programa de Desarrollo Profesional en Automatización, Universidad Autónoma Metropolitana-Azcapotzalco, México.

D. F. 02200, Mexico^1

关键词: Combined model;    Finite-rate heat transfer;    Heat transfer laws;    Internal dissipation;    Optimal allocation;    Recurrence relations;    Stationary power;    Thermal conductance;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/792/1/012001/pdf
DOI  :  10.1088/1742-6596/792/1/012001

学科分类：工业工程学

来源: IOP

【 摘 要 】

A stationary power plant with two Carnot-like cycles is optimized. Each cycle has the following irreversibilities: finite rate heat transfer between the working fluid and the external heat sources, internal dissipation of the working fluid, and heat leak between reservoirs; is extended to two or more of this combined model. Using the Bellman' Principle, we find the optimal recurrence relations for the allocation of the heat exchangers for this power plant. The optimal allocation or effectiveness of the heat exganchers of power plant is determined by two design rules: internal thermal conductance fixed; or areas fixed. The optimal obtained are invariant to the power and efficiency and to the heat transfer law.