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  Áú¼Ò ºñÁß °è»ê ¹®Àǵ帳´Ï´Ù.
  ±Û¾´ÀÌ : ¸£À»   °íÀ¯ID : kjr2161     ³¯Â¥ : 22-05-18 18:53     Á¶È¸ : 5035    
¾È³çÇϼ¼¿ä. Áú¼Ò ºñÁß °è»ê °ü·Ã ¹®Àǵ帳´Ï´Ù.

¾Ð·Â : 8kgf/cm2 / ¿Âµµ : -160¡É ÀÎ ÃÊÀú¿Â Áú¼Ò (Gas)ÀÇ ºñÁßÀ» °è»êÇÏ°íÀÚ ÇÕ´Ï´Ù.

±âüÀÇ ºñÁßÀº 0¡É 1±â¾ÐÀÇ °ø±â¸¦ 1·Î º¸¾ÒÀ»¶§ ¹ÐµµÀÇ ºñ¸¦ ¼ýÀÚ·Î ³ªÅ¸³½´Ù°í Çϴµ¥,

ÀÌ»ó±âü ¹æÁ¤½ÄÀ» ÀÌ¿ëÇؼ­ ÇöÀç ¿îÀü Data ¿¡¼­ÀÇ Áú¼Ò ¹Ðµµ °ªÀ» ±¸Çؼ­ ±× °ªÀ» A kg/m3 À̶ó°í ÇÑ´Ù¸é

°ø±â¹Ðµµ°¡ 1.225kg/m3 (0¡É 1±â¾Ð) À̸é

A kg/m3 / 1.225 kg/m3 À¸·Î °è»ê ÇÏ¸é µÇ´Â °Ç°¡¿ä?

µµ¿ò ºÎŹµå¸³´Ï´Ù. ¤Ð¤Ð

Stefano    22-05-19 03:57
±×·¸Áö¿ä.  ´Ü,  ¹®Á¦´Â  ÃÊÀú¿ÂÀÇ Áú¼ö ¹Ðµµ¿Í  Ç¥ÁØ°ø±â(Standard Air)ÀÇ ¹Ðµµ°¡ Á¤È®ÇÑÁö È®ÀÎÇØ º¸´Â ÀÏÀε¥ ¿Âµµ¿Í ¾Ð·Â ¹× °ø±âÀÇ ½Àµµ¿¡ µû¶ó¼­µµ ´Þ¶óÁö±â ¶§¹®¿¡ »ý°¢º¸´Ù º¹ÀâÇÑ »çÇ×µéÀÌ ¸¹ÀÌÆ÷ÇԵǾî ÀÖ½À´Ï´Ù. 

¹Ðµµ 1.225 kg/m3ÀÇ ±âÁØÀº 15¡É ´ë±â¾Ð¿¡¼­ Çؼö¸é¿¡¼­ °ÇÁ¶°ø±âÀÇ ¹Ðµµ¶ó°í ÇÕ´Ï´Ù. 
(Ref:  https://www.omnicalculator.com/physics/air-density#standard-air-density)


** <Ç¥ÁØ»óÅÂ(Standard Temperature and Pressure) ¿Âµµ¿Í ¾Ð·ÂÁ¶°Ç:>

±¹Á¦¼ø¼öÀÀ¿ëÈ­Çп¬¸Í(IUPAC):  "STP(Standard Temp. & Pressure)":                0¡É  100.0 kPa(=10^5Pa)
                                          :  "SATP(Standard Air Temperature & Pressure)"  25¡É 100.0 kPa(=10^5Pa)
¹ÌÇ¥Áر¹(NIST,  ISO 10780):      "SS(Standard State)":                                  0¡É    1±â¾Ð(101.325 kPa)
¹Ìȯ°æ±¹(EPA)    :                    "NTP(Normal Temperature and Pressure)":      20¡É  1±â¾Ð(101.325 kPa)                               
±¹Á¦¹Î°£Ç×°ø±â±¸(ICAO:          "ISA(International Standard Atmosphere)":      15¡É  1±â¾Ð(101.325 kPa)
±è¾Ó²¿ kimangkko   22-05-19 07:11
http://coolprop.sourceforge.net/jscript/index.html

REFPROP¿Í »ç¿ë¹ýÀÌ ºñ½ÁÇÑ, Coolprop ¿Â¶óÀÎ °è»ê±â¿¡ ¾Æ·¡Ã³·³ (8bar -160'C) Á¶°ÇÀ¸·Î ¹Ðµµ¸¦ ±¸Çϸé 27kg/m3°¡ ³ª¿É´Ï´Ù.  Specific Gravity°¡ ¾îµð¿¡ »ç¿ëµÇ´ÂÁö ¸ð¸£°ÚÁö¸¸ ¹ÐµµºñÀ²·Î Àû¿ëÇÏ½Ç ¼ö ÀÖÀ¸¸é »ç¿ëÀÌ °¡´ÉÇÏÁö ¾ÊÀ»±î¿ä?

=°á°ú=

FluidName:
Nitrogen
Input #1:
Pressure [Pa]
 
800000
Input #2:
Temperature [K]
 
113
Calculate
Output:
T = 113 K
rho = 27.098718202761464 kg/m©ø
p = 800000 Pa
s = 5142.496288413211 J/kg/K
h = 105146.34158312705 J/kg
cp = 1284.1096486596189 J/kg/K
   

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