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taki0912

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±ÈÈç h=refpropm('h','p',p4,'Q',0,'R123');       Q ºÍ 0  ÊÇʲôÒâ˼

h1=refpropm('h','p',p1,'s',s1,'R123');

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[ Last edited by nono2009 on 2015-4-22 at 08:25 ]
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huakelikun

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3Â¥2015-04-21 21:07:31
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taki0912

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ÒýÓûØÌû:
3Â¥: Originally posted by huakelikun at 2015-04-21 21:07:31
´ò´íÁË£¬Èí¼þÃûÓ¦¸ÃÊÇrefprop £¬²»ÊÇrefpropm

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4Â¥2015-04-22 08:25:16
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taki0912

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5Â¥2015-04-22 08:38:14
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sherry89

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ÒýÓûØÌû:
5Â¥: Originally posted by taki0912 at 2015-04-22 08:38:14
È·¶¨ìÊÖµ¶¼ÐèÒªÄÄЩ²ÎÊý£¿
ÓÃT+Q,P+S,»¹ÓÐÆäËûµÄÂð?±ÈÈçT+p...

T+PÔÚÁ½ÏàÇøÎÞ·¨È·¶¨ìÊÖµ¡£
¿ÉÖ±½ÓÔÚMatlabÖÐhelp refpropm¿´¸÷²ÎÊýº¬Òå¡£
Dowhatyoulike,likewhatyoudo
6Â¥2015-04-22 10:03:16
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taki0912

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ÒýÓûØÌû:
6Â¥: Originally posted by sherry89 at 2015-04-22 10:03:16
T+PÔÚÁ½ÏàÇøÎÞ·¨È·¶¨ìÊÖµ¡£
¿ÉÖ±½ÓÔÚMatlabÖÐhelp refpropm¿´¸÷²ÎÊýº¬Òå¡£...

±ÈÈçÀÊ¿ÏÑ­»·Õâ¸öͼ£¬ÒÑÖªT1 T2 P2 ,Ëĸö¹ý³Ì·Ö±ðÊǵÈìØºÍµÈѹ£¬ÐèÒª°Ñ1£¬2£¬3£¬4¸öµãµÄP¡¢T¡¢H¡¢SµÈÈ«Çó³öÀ´£¬ÌرðÊǾ­¹ýÁ½ÏàÇø£¬Òѹò
matlabÈçºÎµ÷ÓÃrefprop£¬Óï¾äÔõôд£¿
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7Â¥2015-04-22 15:58:06
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sherry89

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ÒýÓûØÌû:
7Â¥: Originally posted by taki0912 at 2015-04-22 15:58:06
±ÈÈçÀÊ¿ÏÑ­»·Õâ¸öͼ£¬ÒÑÖªT1 T2 P2 ,Ëĸö¹ý³Ì·Ö±ðÊǵÈìØºÍµÈѹ£¬ÐèÒª°Ñ1£¬2£¬3£¬4¸öµãµÄP¡¢T¡¢H¡¢SµÈÈ«Çó³öÀ´£¬ÌرðÊǾ­¹ýÁ½ÏàÇø£¬Òѹò

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2 Çó 1,3£»3Çó4£»3µãÊÇÔÚ±¥ºÍÏßÉϰɣ¿
Dowhatyoulike,likewhatyoudo
8Â¥2015-04-23 09:15:30
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taki0912

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ÒýÓûØÌû:
8Â¥: Originally posted by sherry89 at 2015-04-23 09:15:30
2 Çó 1,3£»3Çó4£»3µãÊÇÔÚ±¥ºÍÏßÉϰɣ¿...

ºÃ°É£¬ÒÑÖªT1 P1 T2
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9Â¥2015-04-23 16:13:02
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taki0912

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ÒýÓûØÌû:
8Â¥: Originally posted by sherry89 at 2015-04-23 09:15:30
2 Çó 1,3£»3Çó4£»3µãÊÇÔÚ±¥ºÍÏßÉϰɣ¿...

T1=input('Enter the temperature t1(C):')+273.15;
T2=input('Enter the temperature t2(C):')+273.15;
P1=input('Enter the pressure p1(MPa):')*1000;
H1=refpropm('h','T',T1,'P',P1,'water');
S1=refpropm('S','T',T1,'P',P1,'water');
S2=S1;
H2=refpropm('h','T',T2,'s',S2,'water');
P2=refpropm('P','T',T2,'s',S2,'water');
P3=P2;
H3=refpropm('h','P',P3,'Q',0,'water');
S3=refpropm('S','P',P3,'Q',0,'water');
T3=refpropm('T','P',P3,'s',S3,'water');
S4=S3;
P4=P1;
H4=refpropm('h','P',P4,'s',S4,'water');
T4=refpropm('T','P',P4,'s',S4,'water');
y=1-(H2-H3)/(H1-H4£©;

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