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lab3

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TABLO 2. DENEYDE ÖLÇÜLEN VE HESAPLANAN DEĞERLER
Deney
No
Ts
°C
Ts
K
Ta
K
R
W/m²
qBö=5.59*R
W/m2
qBH=Ϭ(Ts4-Ta4)
W/m2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Tçevre=13°C
13
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
286
323
333
343
353
363
373
383
393
403
413
423
433
443
453
463
286
286
286
286
286
286
286
286
286
286
286
286
286
286
286
286
0
48
64
82
101
122
145
168
195
223
254
285
321
357
397
432
0
268,32
357,76
458,38
564,59
681,98
810,55
939,12
1090,05
1246,57
1419,86
1593,15
1794,39
1995,63
2219,23
2414,88
0
237,7972272
317,8479928
405,4447799
501,0475389
605,1298283
718,1788145
840,6952719
973,1935827
1116,201738
1270,261335
1435,927581
1613,76929
1804,368885
2008,322395
2226,23946
% Fark
(qBÖ-qBH)*100/qBÖ
0
11,37551161
11,15608431
11,54832674
11,25462036
11,26868408
11,39611196
10,48052732
10,72028047
10,45815818
10,53615604
9,868651364
10,06585581
9,583996802
9,503638862
7,811590626
Ts=110 °C için örnek hesaplama
% Fark
(qBÖ-qBH)*100/qBÖ
Ts=110 °C+273=383 K
qBö=5.59*R
4
4
qBH=Ϭ(Ts -Ta )
Çevre Sıcaklığı: Ta=286 K
qBö=5.59*168 W/m2
qBH=5.67*10-23(3834-2864)
R=168 W/m² ölçüldü.
qBö=939.12 W/m
(qBÖ-qBH)*100/qBÖ=(939.12-840.695)*100/939.12)
2
2
qBH=840.695 W/m
= %10.48
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