Calculate Power

CALCULATE POWER

Calculate Time

CALCULATE TIME

Calculate Temperature

CALCULATE TEMPERATURE

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Tech Tools

Calculate Power in °C

SINGLE PASS KW - GIVEN GPM & DELTA T in °C
This calculates the power required (in kilowatts) to maintain a certain heat up of water given the flow rate (in gallons per minute), and the temperature change required (in degrees centigrade).

Process Data:

    

Flow Rate:

 (In Gallons per Minute.)

Temperature Change Required: (In °C) :

Power Required (In kw) :

  

SINGLE PASS KW - GIVEN LPM & DELTA T in °C
This calculates the power required (in kilowatts) to maintain a certain heat up of water given the flow rate (in liters per minute), and the temperature change required (in degrees centigrade).

Formula for Calculating Power with flow(LPM) and change in temp(°C)

Process Data:

    

Flow Rate:

 (In Liters per Minute.)

Temperature Change Required: (In °C) :

Power Required (In kw) :

  

Calculate Power in °F

SINGLE PASS KW - GIVEN GPM & DELTA T in °F
This calculates the power required (in kilowatts) to maintain a certain heat up of water given the flow rate (in gallons per minute), and the temperature change required (in degrees Fahrenheit).

Formula for Calculating Power with flow(LPM) and change in temp(°C)

Process Data:

    

Flow Rate:

 (In Gallons Per Minute.)

Temperature Change Required: (In °F) :

Power Required (In kw) :

  

RECIRCULATING SYSTEM KW - GIVEN GALLONS OF WATER, TIME TO HEATUP, & DELTA T in °C This calculates the power required (in kilowatts) to maintain a certain heat up of water given the volume of water (in gallons), the time to heat up (in minutes), and the temperature change required (in degrees centigrade).

Formula for Calculating Power with flow(LPM) and change in temp(°C)

Process Data:

    

Volume of Water : In Gallons)

  

Temperature Change Required: (In °C) :

Time to reach temperature: (in Mins.)

  

Power Required (In kw) :

  

Definitions

Common Abbreviations
  • KW = Killowatts
  • Gal = Gallons
  • in = Inches
  • SpH = Specific Heat of Solution
    (Water = 1 calorie/gram)
  • SpW = Specific Weight of solution
    (Water = 8.337 lbs/gal)
  • T°F = Change in temperature, degrees Fahrenheit
  • T°C = Change in temperature, degrees Centigrade
  • Min = Heatup time in minutes

Common Equivalents
  • 1 in = 2.54 cm = 25.4 mm = 0.083ft
  • 1 cm = 0.3937 in = 0.0328 ft.
  • 1 in³= 16.39 cm³
  • 1 BTU = 0.2933 watt-hrs
  • 1 KW-Hr = 3412 BTU

Properties Of Water
  • 1 gallon = 231 in³ = 0.1337 ft³ = 3.785L
  • 1 gallon = 8.337 lbs.
  • 1 ft³ = 62.4 lbs. (at 20°C)
  • specific heat = 1 calorie/gram-°C (at 15°C)
  • specific heat = 1 BTU/lb.-°F (at 15°C)
  • specific weight = 8.337 lbs./gallon heat of vaporization = 965 BTU/lb.

Ohm's Laws
  • Volts = Amperes x Ohms
  • Watts = (Amperes)² x Ohms
  • Amperes = Watts / Volts
  • Amperes/Phase = (Watts / Volts) x 0.578
    • (Assuming Balanced 3-Phase Load)
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