full2010.pdf - page 1464

1426
‹µ„£µ¡š¸É 3 š¸É—Š‡ªµ¤´ ¤¡´œ›r¦³®ªnµŠ Pressure drop ¨³ Reynolds number —ŠÄ®oÁ®Èœªn µÁ¤ºÉ°‡nµ
Reynolds number ¤¸‡nµÁ¡·É¤ ¹Êœ¡ªn µ‡nµ‡ªµ¤—´ œ¼Á¸¥š¸ÉÁ„· — ¹Êœ£µ¥Äœšn°„Ȥ¸‡nµÁ¡·É¤ ¹Êœ˜µ¤Åž—oª¥Â¨³Á¤ºÉ°—¼ ‹µ„
°»–®£¼¤·‹³Á®ÈœÅ—oªnµš¸É‡nµ Reynolds number œo°¥ °»–®£¼¤·‹³Å¤n¤¸Ÿ¨„´‡nµ Pressure drop Á¡¦µ³°¥¼nĜn ªŠ„µ¦Å®¨
¦µÁ¦¸¥ ˜nÁ¤ºÉ °‡nµ Reynolds number Á¡·É¤¼Š ¹ÊœŽ¹ÉŠ°¥¼n ĜnªŠ„µ¦Å®¨Âž{~ œžiªœ °»–®£¼¤·‹³¤¸Ÿ¨„´‡n µ
Pressure drop —ŠÄ®oÁ®Èœªn µ‡nµ‡ªµ¤—´œ¼Á¸¥š¸ÉÁ„·— ¹Ê œ£µ¥Äœšn°š°ŠÂ—Š„¨¤ œµ—Á¨È„œ¸Ê‹³¤¸‡nµ¤µ„„Șn°Á¤ºÉ°„µ¦
Å®¨Äœšn°š°ŠÂ—Šœ´Ê œÁž}œ„µ¦Å®¨Âž{~œžiªœ
Reyonolds Number,Re
0 2000 4000 6000 8000 10000 12000 14000 16000
Pressure dorp (kPa)
0
2
4
6
8
10
12
Experriment
Haland(1983)
Moody(1947)
Round(1980)
Churchill(1973)
Manadilli(1997)
Chen(1979)
Water temperature = 22 oC
£µ¡š¸É 4 —Š‡ªµ¤´¤¡´œ›r¦³®ªnµŠ Pressure drop ¨³ Reynolds number š¸É°» –®£¼¤· 22 oC
Reyonolds Number,Re
0 2000 4000 6000 8000 10000 12000 14000 16000
Pressure dorp (kPa)
0
2
4
6
8
10
12
Experriment
Haland(1983)
Moody(1947)
Round(1980)
Churchill(1973)
Manadilli(1997)
Chen(1979)
Water temperature = 30 oC
£µ¡š¸É 5 —Š‡ªµ¤´¤¡´œ›r¦³®ªnµŠ Pressure drop ¨³ Reynolds number š¸É°» –®£¼¤· 30 oC
‹µ„£µ¡š¸É 4 ¨³ £µ¡š¸É 5 š¸É °»–®£¼¤·°ŠœÊÎ µ 22 oC ¨³30 o C Á¤ºÉ°œÎµ‡nµ‡ªµ¤—´ œ¼Á¸¥ š¸Éŗo‹µ„„µ¦
š—¨°ŠœÎµÅžÁž¦¸ ¥Áš¸¥„´ ‡nµ‡ªµ¤—´œ¼Á¸¥š¸Éŗo‹µ„„µ¦‡Î µœª–‡nµÂ¢‡Á˜°¦r¦ŠÁ¸ ¥—šµœ‹µ„¤„µ¦ °Š