夹点对超临界二氧化碳布雷顿再压缩循环性能的影响OA北大核心CSCDCSTPCD
Effect of pinch point on thermal and exergetic performance of supercritical carbon dioxide Brayton recompression cycle
研究了超临界二氧化碳(supercriticalcarbondioxide,SCO2)布雷顿再压缩循环回热器的夹点问题,分析了换热器夹点对SCO2布雷顿再压缩循环热效率、净输出功、不可逆损失和(火用)效率等性能的影响,阐述了膨胀机进口温度和循环压比对SCO2布雷顿再压缩循环的影响,并比较了再压缩循环和简单回热循环的性能.结果表明:夹点的位置随着分流比的增大,先出现在低温回热器低温侧的出口,然后出现在低温回热器内部,最后出现在低温回热器低温侧进口;…查看全部>>
The pinch point problem of recuperator on supercritical carbon dioxide Brayton recompression cycle was studied. Then,the effect of the pinch point on the thermal efficiency,specific work output, irreversible exergy losses,and exergy efficiency of supercritical carbon dioxide Brayton recompression cycle was analyzed; and the effect of the inlet temperature of turbine and pressure ratio on supercritical carbon dioxide brayton recompression cycle was discussed.…查看全部>>
曹春辉;李惟毅
中低温热能高效利用教育部重点实验室(天津大学),天津 300350中低温热能高效利用教育部重点实验室(天津大学),天津 300350
能源科技
夹点超临界二氧化碳布雷顿循环优化热力学
pinch pointsupercritical carbon dioxidebrayton cycleoptimizationthermodynamics
《化工进展》 2017 (11)
3986-3992,7
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