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T_1ÊÇδ֪Êý£¬Í¨¹ýÇó½âf1ÏëÒªµÄ³öT_1£¬µ«ÊÇÔËÐÐÍêÁËÖ®ºó³öÏÖÁ˵ã´íÎó¡£ syms T_1; P_2s=1500; P_1=500; h_1=refpropm('H','T',T_1,'P',P_1,'R245fa'); s_1=refpropm('S','T',T_1,'P',P_1,'R245fa'); s_2s=s_1; h_2s=refpropm('H','P',P_2s,'S',s_2s,'R245fa'); T_2=365; P_2=1500; h_2=refpropm('H','T',T_2,'P',P_2,'R245fa'); f1=0.9*(h_2-h_1)-h_2s+h_1; T_1=solve(f1) ´íÎóʹÓà cell2mat (line 52) CELL2MAT ²»Ö§³Ö°üº¬Ôª°ûÊý×é»ò¶ÔÏóµÄÔª°ûÊý×é¡£ ³ö´í refpropm (line 299) propVal1 = cell2mat(varargin(3)); Ï£ÍûÓиæËß°ïÖúһϡ£ |
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