用自然温标来研究太阳能锅炉的最佳热力学设计

STUDY ON THE OPTIMAL THE RMODYNAMIC DESIGN OF SOLAR BOILERS ON THE BASIS OF THE AMBIENT TEMPERATURE SCALE

本文以自然环境为参照系,提出自然温标:温位=T—T_和比温位φ=/T_a这两个概念。本概念适于(火用)分析法,并可简化对问题的分析和表述。本文还以此概念研究了太阳能锅炉以及具有线性热损的单容集热装置的最佳热力学设计,导出准则关系式击φ_m/φ=φ+2,和最佳集热效率η_(Qop)=(φ+1)/(φ+2)。

Taking the Ambient Condition as the reference system, this paper has put forward the Ambient temperature scale, which encludes two new concepts: the temperature potential φ=T-Ta and the dimensionless temperature Potential φ=φ/Ta·The Ambient temperature scale is suitable for exergy analysis and can simplify analysing and expressing.On the basis of the Ambient temperature scale, this paper also has studied the optimal design of solar boilers and other single-content heat collection devices with linear heat losses and deduced the criterion φ_m/φ=φ+2 and the optimal efficiency of haet collection η_(Qop)=(φ+1)/(φ+2)