Organization: Prentice Centre, University of Queensland
References: <Bxt5s0.M8@brunel.ac.uk>
Date: Wed, 18 Nov 1992 07:27:47 GMT
Lines: 25
dt89csc@brunel.ac.uk (C S Codrington) writes:
>Does anyone out there know anything about the use of Halogen lamps for heating food. I want to use a Halogen lamp in a kettle instead heating element.
>Is this feasible?
>Is it cheaper?
1) _Why_??????????
2) Sounds like a nasty thing to do to a halogen lamp.
3) Halogen lamps are optimized to put out _light_, not heat.
4) If you want a "novel" way of heating cups of coffee, try microwave.
I am told it is actually cheaper (i.e. less energy) to put a single
cup of water in a microwave oven to boil it than it is to boil the
water in a kettle - mainly because a kettle requires a minimum amount
of water to ensure the element is covered. About 2 cups is the
break-even point, I am told. The other reason microwave is good,
though, is that it heats the milk, and the cup itself, at the same time
- so if your control was good enough, you would be taking the whole
mixture to exactly the temp you want, rather than boiling the water
and then having it cool down again in contact with the cold cup and
milk. Of course, capital cost is a different story!
| jeff@minmet.uq.oz.au | Jeff Gates, Dept Mining | _--_|\
