ÀÎÅͳÝÈÇаøÇÐ+±¸±Û+³×À̹ö
ÀÚµ¿·Î±×ÀÎ
ÄÁÅÙÃ÷ | contents
ÀϹݰԽÃÆÇ
Q&A°Ô½ÃÆÇ
°øÇÐ S/W
½ºÅ͵ð | study
´ÜÀ§È¯»ê
³óµµ°è»ê
ÀϹÝÈÇÐ
È°øÀϹÝ
È°ø½Ç¹«
¿Ü¾ÐÀ» ¹Þ´Â Æ©ºêÀÇ µÎ²² °è»ê ½Ä
±Û¾´ÀÌ
:
¿ÀÂ¥¸Þ°¡¸®
°íÀ¯ID
: cbk2888
³¯Â¥
: 13-06-14 20:18
Á¶È¸
: 7369
³»¾ÐÀ» ¹Þ´Â Æ©ºêÀÇ ÃÖ¼ÒÇã¿ëµÎ²² °è»ê ½Ä Áß
t = PDo/(2SE +0.8P) + C.A¿¡¼ 0.8ÀÇ Àǹ̴ ¹«¾úÀÎÁö¿ä?
Ǫ¸£¸¥ÅÊÀÌ
sigp77
13-06-26 09:12
ASME/ANSI B31.3 (Process Piping) ÀÇ 304 Ç׿¡ Àß ¼³¸íµÇ¾îÀÖ½À´Ï´Ù. (Á¦°¡ Âü°íÇÑ°Ç 1999 Edition ÀÔ´Ï´Ù)
t = PDo/(2SE + 2YP)
tm = PDo/(2SE + 2YP) + C.A. ÀÔ´Ï´Ù.
Y = Y coefficient
2Y = 0.8 À̹ǷΠY = 0.4 ÀÔ´Ï´Ù.
Y coefficient ´Â
(1) t < D/6 ÀÏ °æ¿ì, Table 304.1.1 (Values of Coefficient Y) ¿¡¼ ãÀ¸¸é µÇ°í
(2) t >= D/6 ÀÏ °æ¿ì, ¾Æ·¡ ½Ä¿¡ ÀÇÇÏ¿© °è»êÇÕ´Ï´Ù
Y = (d + 2c) / (D + d + 2c)
D = Pipe ¿Ü°æ
d = Pipe ³»°æ
c = Mechanical allowance plus corrosion & errosion allowance
ASME/ANSI B31.3 (Process Piping) ÀÇ 304 Ç׿¡ Àß ¼³¸íµÇ¾îÀÖ½À´Ï´Ù. (Á¦°¡ Âü°íÇÑ°Ç 1999 Edition ÀÔ´Ï´Ù) t = PDo/(2SE + 2YP) tm = PDo/(2SE + 2YP) + C.A. ÀÔ´Ï´Ù. Y = Y coefficient 2Y = 0.8 À̹ǷΠY = 0.4 ÀÔ´Ï´Ù. Y coefficient ´Â (1) t < D/6 ÀÏ °æ¿ì, Table 304.1.1 (Values of Coefficient Y) ¿¡¼ ãÀ¸¸é µÇ°í (2) t >= D/6 ÀÏ °æ¿ì, ¾Æ·¡ ½Ä¿¡ ÀÇÇÏ¿© °è»êÇÕ´Ï´Ù Y = (d + 2c) / (D + d + 2c) D = Pipe ¿Ü°æ d = Pipe ³»°æ c = Mechanical allowance plus corrosion & errosion allowance
Copyright 1999.07.10-Now ChemEng.co.kr & 3D System Engineering. (mail : ykjang@naver.com, call 010-4456-8090)