47
B. Ulangan 2
Tabel massa dan suhu bahan Ulangan 2.
Air dingin1
Air panas Arang
sekam Air
dingin2 m kg
0.05006 0.05001
0.00201 0.05044
T0
o
C
12.05 49.4
31.2 11.6
Tabel suhu air dingin dan air panas Ulangan 2. Tabel suhu air dingin dan sampel Ulangan 2.
ts T
o
C ts
T
o
C
16.6 13.9
5 18
5 14.6
10 18.2
10 15
15 186
15 15.3
20 18.8
20 15.6
25 19
25 15.8
30 19.2
30 15.9
35 19.3
35 16.1
40 19.4
40 16.3
45 33.3
45 16.4
50 32.7
50 16.5
55 32.3
55 17
60 30.7
60 17.1
65 31.9
65 17.3
70 31.6
70 17.4
75 31.5
75 17.5
80 31.4
Keterangan: = Tw
= Te
48
Pengolahan data Ulangan 2: 1.
Penentuan Cc
Mw Cpw Te - Tw =
Mwh Cpw Twh - Te + Cc Tc - Te 0.05006 x 4.2 33.3
– 19.4 =
0.05001 x 4.2 49.4 – 33.3 + Cc 19.4 – 33.3
2.923 =
3.3817 - 13.9 Cc Cc
= 0.033 kJkg
o
C
2. Penentuan Cps
Mw Cpw Te – Tw
= Ms Cps Ts
–Te + Cc Tc – Te 0.05044 x 4.2 17.0
– 16.5 =
0.00201 x Cps 31.2 – 17.0 + 0.033 16.5 – 17.0
0.1059 =
0.0285 Cps -0.0165 Cps
= 4.2947 kJkg
o
C
49
C. Ulangan 3
Tabel massa dan suhu bahan Ulangan 3.
Air dingin1
Air panas Arang
sekam Air
dingin2 m kg
0.0506 0.05012
0.002 0.0509
T0
o
C
11.2 56.2
25.7 13.8
Tabel suhu air dingin dan air panas Ulangan 3. Tabel suhu air dingin dan sampel Ulangan 3.
ts T
o
C ts
T
o
C
14.1 16.3
5 15
5 17.2
10 15.4
10 17.8
15 15.9
15 18.1
20 16.1
20 18.4
25 16.4
25 18.6
30 16.6
30 18.9
35 16.8
35 19.1
40 17
40 19.3
45 17.1
45 19.4
50 17.3
50 19.6
55 17.4
55 19.7
60 17.5
60 19.8
65 35.2
65 20.1
70 34.2
70 20.3
75 33.6
75 20.4
80 33.2
80 20.6
85 33
90 32.9
95 32.7
100 32.5
Keterangan: 105
32.4 = Tw
= Te
50
Pengolahan data Ulangan 3: 1.
Penentuan Cc
Mw Cpw Te - Tw =
Mwh Cpw Twh - Te + Cc Tc - Te 0.0506 x 4.2 35.2
– 17.5 =
0.05012 x 4.2 56.2 – 35.2 + Cc 17.5 – 35.2
3.762 =
4.421 -17.7 Cc Cc
= 0.037 kJkg
o
C
2. Penentuan Cps
Mw Cpw Te – Tw
= Ms Cps Ts
–Te + Cc Tc – Te 0.05090 x 4.2 20.1
– 19.8 =
0.002 x Cps 25.7 – 20.1 + 0.037 19.8 – 20.1
0.0641 =
0.0112 Cps - 0.0111 Cps
= 6.7143 kJkg
o
C = 0.0426 kJkg
o
C = 7.046 k kJkg
o
C
51
Lampiran 6. Hasil pengukuran panas jenis kayu A.
Ulangan 1
Tabel massa dan suhu bahan Ulangan 1.
Air dingin1
Air panas Arang
sekam Air
dingin2 m kg
0.05036 0.05026
0.00211 0.05033
T0
o
C
12.5 64.8
30.3 13.3
Tabel suhu air dingin dan air panas Ulangan 1. Tabel suhu air dingin dan sampel Ulangan 1.
ts T
o
C ts
T
o
C
15 16
5 15.8
5 17.3
10 16.1
10 18
15 16.5
15 18.4
20 16.9
20 18.8
25 17.1
25 19.2
30 17.4
30 19.4
35 17.5
35 19.6
40 18
40 19.8
45 17.9
45 20.1
50 18.1
50 20.1
55 18.3
55 20.2
60 18.3
60 20.5
65 18.6
65 20.6
70 18.6
70 20.7
75 18.8
75 20.9
80 18.9
80 21.3
85 19
85 21.5
90 38.7
90 21.5
95 37.3
95 21.6
100 36.7
Keterangan: 105
36.3 = Tw
110 35.9
= Te 115
35.7 120
35.5 125
35.3 130
35.3 135
35.1
52
Pengolahan data Ulangan 1: 1.
Penentuan Cc
Mw Cpw Te - Tw =
Mwh Cpw Twh - Te + Cc Tc - Te 0.05036 x 4.2 38.7
– 19.0 =
0.05026 x 4.2 64.8 – 38.7 + Cc 19.0 – 38.7
4.1667 =
5.509 -19.7 Cc Cc
= 0.0681 kJkg
o
C
2. Penentuan Cps
Mw Cpw Te – Tw
= Ms Cps Ts
–Te + Cc Tc – Te 0.05033 x 4.2 20.9
– 20.7 =
0.00211 x Cps 30.3 – 20.9 + 0.0681 20.7 – 20.9
0.0423 =
0.0198 Cps - 0.01362 Cps
= 2.824 kJkg
o
C
53
B. Ulangan 2
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