ITP330-Emerging New Food Processing Technology
ITP330-Emerging New Food Processing Technology
ITP330-Emerging New Food Processing Technology
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Contoh :<br />
Sebuah bahan berbentuk silinder dengan diameter 2R dan panjang<br />
L. Berapa Δ voltase (E) yang perlu diberikan supaya terjadi<br />
peningkatan suhu di pusat bahan sebesar (T max -T 0 ) o C, dimana suhu<br />
awal = T 0 .<br />
T −<br />
max T =<br />
PR<br />
Jawab :<br />
max 0<br />
Gunakan<br />
4k<br />
2<br />
persamaan<br />
I R<br />
peningkatan suhu<br />
T −<br />
max T =<br />
0<br />
T<br />
, I =<br />
max 4k e<br />
k<br />
max<br />
−<br />
Jadi,<br />
⎛<br />
E = 2⎜<br />
⎝<br />
T<br />
0<br />
L<br />
R<br />
=<br />
⎞<br />
⎟<br />
⎠<br />
2<br />
2<br />
2<br />
⎛ keE<br />
⎞<br />
⎜ ⎟ R<br />
⎝<br />
L<br />
⎠<br />
4k k<br />
k<br />
k<br />
T<br />
e<br />
2<br />
keE<br />
L<br />
⎛<br />
=<br />
⎜<br />
⎝<br />
T<br />
(T −<br />
0<br />
max<br />
2<br />
E<br />
R<br />
2<br />
4L<br />
Purwiyatno Hariyadi - <strong>Emerging</strong> <strong>New</strong> <strong>Processing</strong> <strong>Technology</strong> in <strong>Food</strong>s – <strong>ITP330</strong><br />
e<br />
0<br />
T<br />
0<br />
)<br />
2<br />
⎞<br />
⎛<br />
⎟⎜<br />
⎠⎝<br />
k<br />
k<br />
e<br />
⎞<br />
⎟<br />
⎠
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