Announcement

Announcement Module
Collapse
No announcement yet.

Convert Kgs/Hr to KW/Hr

Page Title Module
Move Remove Collapse
X
Conversation Detail Module
Collapse
  • Filter
  • Time
  • Show
Clear All
new posts

  • Convert Kgs/Hr to KW/Hr

    I need to convert 357Kgs/hr to Kw or Kw/Hr

    Thanks
    BB

  • #2
    Re: Convert Kgs/Hr to KW/Hr

    Originally posted by bikebahn View Post
    I need to convert 357Kgs/hr to Kw or Kw/Hr

    Thanks
    BB
    You would have to know what the material is and its heat of combustion.

    Comment


    • #3
      Re: Convert Kgs/Hr to KW/Hr

      I have a steam heater of 357 kg/hr and i need to convert that into electrical heater so i need to know how much heater rating will be reqd.

      Thanks
      BB

      Comment


      • #4
        Re: Convert Kgs/Hr to KW/Hr

        Originally posted by bikebahn View Post
        I have a steam heater of 357 kg/hr and i need to convert that into electrical heater so i need to know how much heater rating will be reqd.

        Thanks
        BB
        If it is saturated steam, you have to know the temperature and or pressure out of the boiler. You also have to know the temperature on the return side. Then consult a steam table. You need to know the enthalpy difference between the two conditions, multiplied by the mass flow.

        Comment


        • #5
          Re: Convert Kgs/Hr to KW/Hr

          Thanks John,

          I'll let you know as and when I get more info about the parameters you mentioned.

          BB

          Comment


          • #6
            Re: Convert Kgs/Hr to KW/Hr

            Let me say that this is enough steam that it should be evaluated professionally, by a heating engineer. (I'm not!!). A lot of heat is wasted in the steam distribution system, so installing the same electric capacity on a distributed basis may lead to excess capacity.

            With that caveat, let me rough out some "order of magnitude" numbers for you. First, here is a steam table for you:
            http://www.engineeringtoolbox.com/sa...ies-d_101.html

            I will round your mass flow to 360 kg/h, which is 0.1 kg/s.
            Heat transfer will be different in one-pipe and two-pipe systems, and depend on steam pressure or temperature. For a one pipe system, only the heat of vaporization is transferred, and pressure is generally only slightly above atmospheric. If we say 110 kPa (102.3 C), the heat content would be 2250 kJ/kg. At 0.1 kg/s, this is
            2250 kJ/kg x 0.1 kg/s = 225 kJ/s = 225 kW
            (fuel usage would be somewhat higher, with heat going up the chimney)

            In a two-pipe system with cooler condensate, this might be a little higher, around 245 kW being transferred.

            These are crude estimates of the current situation and NOT an estimate of the electrical heating capacity required. Depending on details, which can only be evaluated onsite by a qualified engineer, I would expect a somewhat lower estimate of electric heat capacity required.

            Comment


            • #7
              Re: Convert Kgs/Hr to KW/Hr

              Dear, You can convert from Kgs/Hr to KW by using below fomula.

              KW = Kgs/Hr(output-input)/3600

              * Output= Entholpy of steam at given Pressure
              Input = Entholpy of Feed water

              Waheed

              Comment


              • #8
                Re: Convert saturated steam Kgs/Hr to KW/Hr

                i have to need 1 kg saturated steam=how much kwh?
                prasenjit

                Comment


                • #9
                  Re: Convert Kgs/Hr to KW

                  i need 25kgs/hr of steam.for this how many kw i have to apply?

                  Comment

                  Working...
                  X