Hi doing a group project on making tea candles! Silly topic but anyway....(adsbygoogle = window.adsbygoogle || []).push({});

my part is to calculate the pressure needed to make a candle and having trouble with the calculations....

final dimension needs to be a 38mm diameter and 16mm height

using rotary compression to do this.... candle wax comes in and candle comes out...

here is what i have done yet answer seems extreme, any advice would be great !

oh and have attached a word file with sketch and solid works screen capture so hopefully the whole thing makes some sense!!

my workings

assume height of 40mm of wax will drop to give 16mm when compressd

therefore volume of melted wax is

V1=∏r^2 h liquid

=∏(0.019)^2 (0.04)

=0.001134m^2

V2==∏r^2 h compressed

=∏(0.019)^2 (0.016)

=0.00002166m^2

P1V1=P2V2

(101000)(0.001134)=(P2)(0.00002144)

therefore P2=2525kPa

i not really too sure what to think of this value?

not even too sure if i have gone about it in the right way

any help would be great!

oh and can't attach the word file as its too big!

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# Compression of candles

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