Likarolo tse ka sehloohong, tšobotsi ho fene, ke tse 'nè ka palo: Bokhoni (V) Khatello (p) Bokhabane (n) Lebelo la ho potoloha (n min.-1)
Bokhoni ke bongata ba mokelikeli o tsamaisoang ke fene, ka molumo, ka nako e le 'ngoe,' me hangata o hlahisoa ka m.3/h, m3/m., m3/sec.
Kakaretso ea khatello (pt) ke kakaretso ea khatello e tsitsitseng (pst), ke hore matla a hlokahalang ho mamella likhohlano tse fapaneng le tsamaiso, le khatello e matla (pd) kapa matla a kinetic a fanoang ho mokelikeli o tsamaeang (pt = pst + pd). ). Khatello e matla e itšetlehile ka bobeli lebelo la mokelikeli (v) le matla a khoheli a khethehileng (y).
Moo:
pd= khatello e matla (Pa)
y= boima bo itseng ba mokelikeli(Kg/m3)
v= lebelo la mokelikeli ha ho buloa fan e sebelisoang ke sistimi (m/sec)
Moo:
V= boholo(m3/sec)
A= tekanyo ea ho bula e sebelisoang ke sistimi (m2)
v= lebelo la mokelikeli ha ho buloa fan e sebelisoang ke sistimi(m/sec)
Bokhoni ba ho sebetsa hantle ke karo-karolelano lipakeng tsa matla a fenethang le matla a kenang ho enjene e khannang ea fan
Moo:
n= katleho (%)
V= boholo (m3/sec)
pt= matla a monngoeng (KW)
P= khatello e felletseng (daPa)
Lebelo la ho potoloha ke palo ea liphetohelo tseo fan impeller e lokelang ho li etsa ho fihlela litlhoko tsa ts'ebetso.
Ha palo ea li-revolution e fapana (n), ha matla a khoheli a mokelikeli a lula a tsitsitse (?), ho etsahala liphetoho tse latelang:
Bokhoni (V) bo lekana ka kotloloho le lebelo la ho potoloha, ka hona:
Moo:
n= lebelo la ho potoloha
V= matla
V1= bokhoni bo bocha bo fumanoeng ha ho fapana lebelo la ho potoloha
n1= lebelo le lecha la ho potoloha
Moo:
n= lebelo la ho potoloha
pt= khatello e felletseng
pt1= khatello e ncha e felletseng e fumanoeng ho fapana ha lebelo la ho potoloha
n1= lebelo le lecha la ho potoloha
Matla a monyehileng (P) a fapana ho ea ka karo-karolelano ea cube, ka hona:
Moo:
n= lebelo la ho potoloha
P= abs. matla
P1= kenyo e ncha ea motlakase e fumanoeng ha ho fapana lebelo la ho potoloha
n1= lebelo le lecha la ho potoloha
Matla a khoheli a khethehileng (y) a ka baloa ka foromo e latelang
Moo:
273= noto e felletseng(°C)
t= mocheso oa mokelikeli(°C)
y= matla a khoheli a khethehileng a moea ho t C(Kg/m3)
Pb= khatello ea barometric (mm Hg)
13.59= matla a khoheli a mercury ho 0 C(kg/dm3)
Bakeng sa ho bala habonolo, boima ba moea ka mocheso o fapaneng le bophahamo ba asl bo kenyelelitsoe tafoleng e ka tlase:
| Mocheso | ||||||||||||
| -40°C | -20°C | 0°C | 10°C | 15°C | 20°C | 30°C | 40°C | 50°C | 60°C | 70°C | ||
| Bophahamo hodimo bophahamo ba leoatle ka limithara | 0 | 1,514 | 1,395 | 1,293 | 1,247 | 1,226 | 1,204 | 1,165 | 1,127 | 1,092 | 1,060 | 1,029 |
| 500 | 1,435 | 1,321 | 1,225 | 1,181 | 1,161 | 1,141 | 1,103 | 1,068 | 1,035 | 1,004 | 0,975 | |
| 1000 | 1,355 | 1,248 | 1,156 | 1,116 | 1,096 | 1,078 | 1,042 | 1,009 | 0,977 | 0,948 | 0,920 | |
| 1500 | 1,275 | 1,175 | 1,088 | 1,050 | 1,032 | 1,014 | 0,981 | 0,949 | 0,920 | 0,892 | 0,866 | |
| 2000 | 1,196 | 1,101 | 1,020 | 0,984 | 0,967 | 0,951 | 0,919 | 0,890 | 0,862 | 0,837 | 0,812 | |
| 2500 | 1,116 | 1,028 | 0,952 | 0,919 | 0,903 | 0,887 | 0,858 | 0,831 | 0,805 | 0,781 | 0,758 | |
| Mocheso | ||||||||||||
| 80°C | 90°C | 100°C | 120°C | 150°C | 200°C | 250°C | 300°C | 350°C | 400°C | 70C | ||
| Bophahamo hodimo bophahamo ba leoatle ka limithara | 0 | 1,000 | 0,972 | 0,946 | 0,898 | 0,834 | 0,746 | 0,675 | 0,616 | 0,566 | 0,524 | 1,029 |
| 500 | 0,947 | 0,921 | 0,896 | 0,851 | 0,790 | 0,707 | 0,639 | 0,583 | 0,537 | 0,497 | 0,975 | |
| 1000 | 0,894 | 0,870 | 0,846 | 0,803 | 0,746 | 0,667 | 0,604 | 0,551 | 0,507 | 0,469 | 0,920 | |
| 1500 | 0,842 | 0,819 | 0,797 | 0,756 | 0,702 | 0,628 | 0,568 | 0,519 | 0,477 | 0,442 | 0,866 | |
| 2000 | 0,789 | 0,767 | 0,747 | 0,709 | 0,659 | 0,589 | 0,533 | 0,486 | 0,447 | 0,414 | 0,812 | |
| 2500 | 0,737 | 0,716 | 0,697 | 0,662 | 0,615 | 0,550 | 0,497 | 0,454 | 0,417 | 0,386 | 0,758 | |
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