1、 Conversion of temperature units

Start with the simplest - temperature conversion

Degrees Celsius (c) and Fahrenheit (f)

Fahrenheit = 32 + Celsius × one point eight

Celsius = (Fahrenheit - 32) / 1.8

Kelvin temperature (k) and Celsius (c)

Kelvin temperature (k) = Celsius (c) + 273.15

2、 Conversion of pressure units

Mpa、Kpa、pa、bar

1Mpa=1000Kpa；

1Kpa=1000pa；

1Mpa=10bar；

1bar=0.1Mpa=100Kpa；

1 atmospheric pressure = 101.325kpa = 1bar = 1kg;

bar、Kpa、PSI

1bar=14.5psi；

1psi=6.895Kpa；

mH2O

1kg/cm2=105=10 mH2O=1 bar=0.1 MPa

1Pa=0.1 mmH2O=0.0001 mH2O

1mH2O=104 Pa=10 kPa

3、 Conversion of wind speed and volume

1cfm (cubic feet per minute) = 1.699 M ³/ H=0.4719 l/s

1 M ³/ H = 0.5886cfm (cubic feet per minute)

1 L / S = 2.119cfm (cubic feet per minute)

1 FPM (feet per minute) = 0.3048 M / min = 0.00508 M / S

4、 Conversion of refrigerating capacity units

1 KW=1000 W

1 kW = 861kcal / h (kcal) = 0.39 P (cooling capacity)

1 W = 1 J / S

1 USTR = 3024kcal / h = 3517w (cooling capacity)

1 BTU = 0.252kcal/h = 1055j

1 BTU / h (BTU / h) = 0.252kcal/h

1 BTU / h (BTU / h) = 0.2931w (cooling capacity)

1 MTU / h (kilobtu / h) = 0.2931kw (cooling capacity)

1 HP (electricity) = 0.75KW (electricity)

1 kW (electricity) = 1.34hp (electricity)

1 RT (cooling capacity) = 3.517kw (cooling capacity)

1 kW (cooling capacity) = 3.412mbh (103 BTU / h)

1 p (cooling capacity) = 2200kcal / h = 2.56kw

1 kcal/h=1.163W

5、 Selection of power cord

1.5mm2 is 12a-20a (2650 ~ 4500W)

2.5mm2 is 20-25a (4500 ~ 5500w)

4 mm2 is 25-32a (5500 ~ 7500w)

6 mm2 is 32-40a (7500 ~ 8500w)