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7 comments
Active Contributor

Join Date: Nov 2007
Posts: 11

Heating Value Converting

10/27/2009 5:00 AM

kindly i want to know how i can convert from cal to kJ/kg?
coz i want to calculate the heating value for the fuel and gas oil.

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#1

Re: heating value converting

10/27/2009 5:25 AM

→ "Kempe's Engineer's Yearbook", any edition.

→ Perry, "The Chemical Engineer's Handbook", any edition.

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#2

Re: heating value converting

10/27/2009 7:29 AM

1 BTU = 1.055 kJ 1 Erg = 1 mJ 1 Therm = 105.5 MJ

1 Food Calorie = 4.187 kJ

1 Calorie = 4.187 J


1 kW-Hr = 3.6 MJ

1 kg(kilo)Calorie = 4.187 kJ (in USA Calorie means a Food Calorie = 4.187 kJ)

1 Horsepower-Hour = 2.6845 MJ

1 Ft-Pound force = 1.3558 J

1 BTU/ft3 = 0.0373 MJ/m3

1 BTU/lbm = 2.3258 kJ/kg

1 cal/g = 4.187 kJ/kg

1 BTU/Hour = 0.2931 W

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Commentator

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Location: Working in Oman
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#3

Re: Heating Value Converting

10/28/2009 12:20 AM

1 kcal/kg =4.19kJ/kg= 1.8 Btu/lb

Dr. Ram

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#4

Re: Heating Value Converting

10/28/2009 3:52 PM

Also check out http://en.wikipedia.org/wiki/Lower_heating_value for some values in SI units as a way of double checking your answers. WR

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#5

Re: Heating Value Converting

10/29/2009 5:51 AM

1 kcal = 4.18 kJ.

Using this formula you can calculate.

Regards.

Anant.

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#6

Re: Heating Value Converting

10/30/2009 6:07 AM

Lots of people are trying to be helpful but just an observation

cals cannot be converted to kJ/kg

cals can be converted to kJ as per all the helpful people below (and any number of websites)

cals are a unit of energy

kJ is a unit of energy

kJ/kg is a unit of specific energy ie energy per unit mass

do you have cal/lb cal/kg or cal per troy ounce all of which would have a different conversion to kJ/kg

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#7
In reply to #6

Re: Heating Value Converting

11/01/2009 12:16 AM

i have kcal/kg

and thanx to all of you

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