Welcome to OnlineConversion.com Forums

 OnlineConversion Forums Convert Kgs/Hr to KW/Hr
 User Name Remember Me? Password
 [ Home ] [ Forum Home ] Register FAQ Calendar Search Today's Posts Mark Forums Read

 Convert and Calculate Post any conversion related questions and discussions here. If you're having trouble converting something, this is where you should post.* Guest Posting is allowed.

 Thread Tools Display Modes
#1
09-22-2009, 12:18 PM
 bikebahn Guest Posts: n/a
Convert Kgs/Hr to KW/Hr

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

Thanks
BB
#2
09-22-2009, 01:08 PM
 JohnS Moderator Join Date: Dec 2007 Location: SE Michigan, USA Posts: 9,547 Rep Power: 19
Re: Convert Kgs/Hr to KW/Hr

Quote:
 Originally Posted by bikebahn 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.
#3
09-22-2009, 02:02 PM
 bikebahn Guest Posts: n/a
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
#4
09-22-2009, 02:26 PM
 JohnS Moderator Join Date: Dec 2007 Location: SE Michigan, USA Posts: 9,547 Rep Power: 19
Re: Convert Kgs/Hr to KW/Hr

Quote:
 Originally Posted by bikebahn 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.
#5
09-22-2009, 03:40 PM
 bikebahn Guest Posts: n/a
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
#6
09-23-2009, 05:19 AM
 JohnS Moderator Join Date: Dec 2007 Location: SE Michigan, USA Posts: 9,547 Rep Power: 19
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.
#7
08-23-2011, 12:11 AM
 Waheed Bhatti Guest Posts: n/a
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
#8
06-28-2012, 09:02 PM
 Unregistered Guest Posts: n/a
Re: Convert saturated steam Kgs/Hr to KW/Hr

i have to need 1 kg saturated steam=how much kwh?
prasenjit
#9
10-14-2013, 10:27 AM
 Unregistered Guest Posts: n/a
Re: Convert Kgs/Hr to KW

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

 Thread Tools Display Modes Linear Mode

 Posting Rules You may post new threads You may post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Main Forums     Convert and Calculate     Resources     General Chat

All times are GMT -8. The time now is 09:40 AM.

 Contact Us - OnlineConversion.com - Archive - Privacy Statement - Top