Constructal design for a boiler economizer

Energy and exergy analysis of spiral turns in optimum design spiral plate heat exchangers

“…gen 0 (42) In case of neglecting heat leakage to the environment, the rate of generated entropy in a HE stemmed from finite temperature difference and fluid friction of streams, 1,29 respectively given in Equations ( 43) and (44). Equation ( 44) is applicable for incompressible streams (liquid) under nonadiabatic condition.…”

“…This powerful theory is well developed in different types of HEs and boilers to study the heat transfer rate and total power consumption to find optimal construct and performance by considering geometric and/or operational parameters. [41][42][43][44][45] That is, these searches can provide new insights into the future study of SPHEs by constructal theory.…”

Optimal Design of a Dual-Pressure Steam Turbine for Rankine Cycle Based on Constructal Theory

“…In the engineering field, constructal theory [14][15][16][17][18][19][20][21][22][23][24][25][26] provides a new idea for the optimal design of various transfer systems. For power plants, this theory has been used in the structure optimizations of boilers [27][28][29][30][31], evaporators [32][33][34][35], condensers [36][37][38][39], regenerators [40,41], turbines [42][43][44][45][46][47] and whole systems [48][49][50]. In the constructal research of the turbines, Kim et al [42] studied the weight distribution problem of a DPST for land power plants with a fixed total weight and gained the maximum power output (PO) and optimal weight distribution.…”

Constructal optimization for a marine boiler based on entransy theory

“…Xie等人 [13] 进一步以换热率和耗功率组 成的复合函数为目标优化了该锅炉过热器结构, 优化 后过热器的耗功率大大减小. Tang等人 [14] 采用类似方 法对锅炉经济器进行了优化, 得到了经济器最佳蛇形 祝贺过增元院士85华诞专辑 论 文 5.0%. Gulotta等人 [15] 应用整体性能系数法优化了生物 质锅炉换热管数目和分布, 探究了锅炉输出功率和压 降随锅炉结构的变化规律.…”

“…Gulotta等人 [16] 进一步结合 构形理论和生命周期评估法对该锅炉进行了结构优 化, 优化后锅炉的整体能耗减小了0.33%. 图 2 整体锅炉换热过程T-S图 : [13,14,39]. ( )…”