Re: Energy units

[Peter Verhaart <pverhaart@optusnet.com.au>]

Unhappy to hear of the preference of obsolete units. The whole world (even 
the USA is paying lip service to the idea) is using or getting ready to use 
SI units. So preference for kJ/kg should be undisputed.

You mention conversion formulae, the SI system of units was developed to do 
away with conversion formulae (which boils down to remembering constants, 
one should make better use of brain capacity remembering phone numbers of 
friends). Years ago our physics lecturer commented on the so-called 
'Mechanical equivalent of heat' that it is nothing more than the specific 
heat capacity of water expressed in an absurd number of decimals. "Surely 
not a very interesting quantity," said he.

Peter (SI freak) Verhaart

At 09:36 11/01/02 +0530, you wrote:
>Dear Stovers,
>our Government has magnanimously sanctioned us some money for buying a bomb
>calorimeter, which is certainly going to be of great help to us in our
>briquettes related work.  Since we shall now be able to measure the energy
>value of our fuel briquettes, and since we would also be reporting the
>figures, I would like to know which units are prefered by this group. The
>contributers to discussions in this group have been using BTU per pound,
>calories per kg and Joules per kg.  Our Ministry of Non-Conventional Energy
>Sources prefers KCal per kg, and they would expect us too to use the same
>unit. I am quite sure that the conversion formulae are available in some
>engineering or physics books, but our Institute does not have them. Would
>somebody from this group provide us with the formulae for converting
>BTU/pound into Joules/kg and  KCal/kg, and for Joules to KCal?
>Dr.A.D.Karve, President
>Appropriate Rural Technology Institute
>Maninee Apartments, Survey no. 13
>Dhayarigaon, Pune 411 041, India.
>
>
>
>
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