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INTRODUCCIÓ
En aquesta practica s'analitza el comportament d'un compressor alternatiu alimentat amb un motor de corrent continu. Esta connectat un transductor de pressió y un codificador d'angles que envien la informació rebuda en forma d'impulsos elèctrics cap a l'ordinador. El primer mesura la pressió a dins el cilindre y el segon la velocitat angular instantània a la que gira el compressor. També hi ha mesurador de temperatura que la mesuren a les línies d'aspiració y expulsió.
FULL DE DADES
Patm_= 760 mm.c.Hg
Experiencia
nº
1
2
3
4
n
rpm
670
676
678
645
F
kp
14,5
14
13,5
12,5
ðPa
Pa
375
400
420
390
Pe
kp/cm2
9
8
7
6
ta
ºC
23,5
25
25
25
te
ºC
202
197
190
177
mw
kg/s
0,153
0,153
0,169
0,0661
tw1
ºC
20
20,2
20,2
20,7
tw2
ºC
21,8
22,1
22
23,4
tamb
ºC
22,1
22,8
23
22,5
FULL DE RESULTATS
Experiencia
nº
1
2
3
4
n
r.p.m.
670
376
678
645
r
9,75
8,78
7,81
6,836
m
29,632
29,891
30,722
29,533
ρaire
kg/h
1,195
1,192
1,191
1,194
ð
0,7378
0,74
0,7586
0,7665
Nu
KW
3,1779
3,095
2,994
2,6373
N'a
KW
3,1143
3,0339
2,934
2,5846
N's
KW
2,2494
2,1399
2,0429
1,7168
ðs-a
0,7223
0,7053
0,6923
0,6642
Te/Ta
1,6017
1,5769
1,5534
1,5098
ð
1,2608
1,2653
1,2727
1,2728
N'i
KW
2,8118
2,6749
2,5536
2,146
Q
KW
1,3354
1,2398
1,1387
0,893
Qw
KW
1,1537
1,2177
1,2743
0,74761
Qamb
KW
0,187
0,0021
-0,1356
0,1454
ðm
0,9029
0,8817
0,8703
0,8303
W'a
KJ/Kg
378
365
344
315
W's
KJ/Kg
273
258
239
209
W'i
KJ/Kg
342
322
299
262
REPRESENTACIONS GRÀFIQUES
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Enviado por: El remitente no desea revelar su nombre Idioma: castellanoPaís: España