SUPERTEC FIRE  SUPERTEC FIRE

UNITA' DI MISURA

Potenza - Lavoro/Tempo

kilowatt

kW

1 kW = 1,36 CV = 1,34 hp = 737,56 lbf·ft/s = 4'4253,7 lbf·ft/min = 859,84 kcal/h = 3'412,14 btu/h = 101,97    kgf·m/s

cavallo vapore

CV

1 CV = 0,735 kW = 0,986 hp = 75 kg·m/s =    542,47 lbf·ft/s = 632,41 kcal/h

= 2'509,62 btu/h = 75 kgf·m/s

kilogrammo forza per metri al secondo

kgf
  ·m/s

1 kgf·m/s = 0,01 kW = 0,013 CV = 0,013 hp = 7,23 lbf·ft/s = 433,98 lbf·ft/min

= 8,43 kcal/h = 33,46 btu/h

kilocaloria all'ora

kcal/h

1 kcal/h = 0,0012 kW = 0,0016 CV =    0,00156 hp = 0,8578 lbf·ft/s = 51,47 lbf·ft/min

= 3,97 btu/h = 0,12 kgf·m/s

horsepower

HP

1 HP = 1,014 CV = 0,746 kW = 550    lbf·ft/s = 33000 lbf·ft/min = 641,19 kcal/h

= 2'544,43 btu/h = 76,04 kgf·m/s

foot pound force per second

lbf
 
·ft/s

1 lbf·ft/s = 0,0013 kW = 0,0018 CV = 0,0018    hp = 60 lbf·ft/min = 1,166 kcal/h

= 4,63 btu/h = 0,138 kgf·m/s

foot pound force per minute

lbf
 
·ft/min

1 lbf·ft/min = 0,000023 kW = 0,0167 lbf·ft/s = 0,019 kcal/h = 0,077 btu/h = 0,0023 kgf·m/s

british termal unit per hour

BTU/h

1 btu/h = 0,00029 kW = 0,216 lbf·ft/s = 12,97 lbf·ft/min = 0,25 kcal/h = 0,030 kgf·m/s

 

Lavoro - Energia - Momento - Coppia - Calore

joule

J

1 J = 1N·m = 0,102 kgf·m = 0,00024 kcal    = 8,85 lbf·in = 0,74 lbf·ft = 0,00095 BTU

kilogrammo forza per metro

kgf·m

1 kgf·m = 9,807 J = 0,0023 kcal = 86,80    lbf·in = 7,233 lbf·ft = 0,0093 BTU

cavallo vapore per ora

CV·h

1 CV·h = 270'000 kgf·m = 0,736 kW·h =    632,41 kcal = 2'509 BTU

kilocaloria

kcal

1 kcal = 4,1868 kJ = 426,93 kgf·m =    0,0016 CV·h = 0,0012 kW·h = 37'056,3 lbf·in

= 3'088 lbf·ft = 3,97 BTU

kilowatt per ora

kW·h

1 kW·h = 3'600 kJ = 1,36 CV·h = 859,8    kcal = 3'412,14 BTU

pound force inch

lbf·in

1 lbf·in = 0,113 J = 0,0115 kgf·m =    0,083 lbf·ft = 0,0001 BTU

pound force foot

lbf·ft

1 lbf·ft = 1,356 J = 0,138 kgf·m = 0,324    cal = 12 lbf·in = 0,0013 BTU

horse power hour

HP·h

1
  HPh = 2,684 MJ = 641,19 kcal = 1,014 CV·h = 0,746 kW·h = 1'980'000 lbf·ft

=    2'544,43 BTU

british thermal unit

BTU

1 BTU = 1'055,056 J = 107,58 kgf·m =    0,0004 CV·h = 0,252 kcal = 0,00029 kWh

= 9'338,03 lbf·in = 778,17 lbf·ft

 

Temperatura

Kelvin

K

K   = °C + 273,15 K = 1,8 · °R K = [5/9 · °F] + (459,67/1,8)

grado Celsius

°C

°C = (°F - 32) · 5/9 °C = K - 273,15   °C = (5/9) · °F - (32/1,8)

grado Fahrenheit

°F

°F  = 9/5 · °C + 32 °F = °R - 459,67 °F = (9/5) · K - 459,67

grado Rankine

°R

°R = (5/9) K °R = 491,67 + (9/5) · °C °R = 459,67 + °F

 

Pressione - Forza/Superficie

pascal

Pa

1 Pa = 1 N/m² 1 kPa = 0,01 bar = 0,1 N/cm² = 0,10 mH2O = 7,5 mmHg = 0,0099 atm
  =0,145 psi = 0,02088 lbf/ft² = 0,334 ftH2O

bar

bar

1 bar = 100'000 Pa = 100 kPa = 1,0197 kg/cm² = 10,198 mH2O = 750 mmHg = 0,987
  atm = 14,5 psi = 33,455 ftH2O

millibar

mbar

1 mbar = 100 Pa = 0,010 mH2O = 0,750 mmHg = 0,00102 kg/cm² = 0,0145 psi = 2,088
  ldf/ft² = 0,033 ftH2O

millimetri di mercurio

mmHg

1 mmHg = 133,322 Pa = 0,133 kPa = 0,00133 bar = 0,0136 mH2O = 0,00131 atm =
  0,00136 kg/cm² = 0,01934 psi = 2,78 ldf/ft² = 0,045 ftH2O

atmosfera tecnica = kgf/cm²

at,
  kg/cm²

1 at = 1 kg/cm² = 735,56 mmHg = 10 mH2O = 98066,50 Pa = 98,067 kPa = 0,981 bar = 0,968 atm = 14,22 psi = 2048,16 lbf/ft² = 32,81 ftH2O

atmosfera metrica

atm

1 atm = 101'325 Pa = 760 mmHg = 1,033 at = 10,33 mH2O = 1,01 bar = 14,696 psi =
  2116,22 lbf/ft² = 33,9 ftH2O

metri colonna d'acqua

mH2O

1 mH2O = 9806 Pa = 0,09806 bar = 73,55 mmHg = 0,9806 N/cm² = 0,09678 atm =
  0,0999 at = 1,4224 psi = 204,8 lbf/ft² = 3,28 ftH2O

foot of water

ftH2O

1 ftH2O = 2988,87 Pa = 0,0299 bar = 0,3048 mH2O = 22,419 mmHg = 0,0295 atm =
  0,03048 kg/cm² = 0,4335 psi = 62,42 lbf/ft²

pounds per square inch

psi

1 psi = 6'894,76 Pa = 6,894 kPa = 0,069 bar = 0,703 mH2O = 51,715 mmHg = 0,689
  N/cm² = 0,068 atm = 0,0703 kg/cm² = 144 lbf/ft² = 2,31 ftH2O

pounds per square foot

lbf/ft²

1 lbf/ft² = 2'988,87 Pa = 2,99 kPa = 0,0299 bar = 0,3048 mH2O = 22,418 mmHg

= 0,299 N/cm² = 0,0295 atm = 0,0305 at = 0,433 psi = 62,424 lbf/ft²