RESULT:
Experiment 1: Determination of the operation and characteristic of mass flowmeter and rotometer
PRESSURE PT1 (bar)
!SS "L#$ ETER% "T1 (LP)
R#T#ETER (LP)
TEPER!TURE TT1 (&')
!SS "L#$ ETER "T1 !T ST!D!RD '#DT#
R#T#ETER RE!D* !T ST!D!RD '#DT#
1+,, ,+/. ,+4 ,+40 ,+42 ,+4-
,+,, 1-+2 --+/ 3.+1 ..+, 2.+3
, 1, -, 3, ., 2,
-.+/ -.+/ -.+4 -.+. -.+3 -.+3
10+2 1+03 32+,1 2-+31 44+3. 0,+30
-,+3. -1+3, 3/+24 24+1. /1+10 04+-4
PRESSURE PT1 (bar)
!SS "L#$ ETER% "T1 (LP)
R#T#ETER (LP)
TEPER!TURE TT1 (&')
!SS "L#$ ETER "T1 !T ST!D!RD '#DT#
R#T#ETER RE!D* !T ST!D!RD '#DT#
-+,, 1+0. 1+/0 1+/. 1+/1 1+40
, +, 14+, 31+3 .2+/ 20+4 4-+-
, 1, -, 3, ., 2,
-.+. -.+. -.+. -.+-.+1 -.+1
-+/4 .1+34 /+-1 11.+,0 1..+/3 121+3
31+. ..+3 02+,1 1--+.3 122+33 142+,2
E5PERET -: Determination of the operation and the characteristic of 6ent7re meter
PRESSURE PT1 (bar)
R#T#ETER (LP)
TEPER!TURE TT1 (&')
D""ERET!L PRESSURE DPT (mbar)
'!L'UL!TED "L#$ R!TE% 8 (LP)
1 +, , , +0 , , +/ 2 , +/ 1 , +4 , +4 0
, 1, -, 3, ., 2,
-.+3 -.+. -.+3 -.+3 -.+3 -.+3
3 . 2 4
-+/-+44. 3+1., 3+2.. 3+,. .+--,
PRESSURE PT1 (bar)
R#T#ETER (LP)
TEPER!TURE TT1 (&')
D""ERET!L PRESSURE DPT (mbar)
'!L'UL!TED "L#$ R!TE% 8 (LP)
- +, , 1 +0 1 +/ 2 1 +/ 1 1 +4 0 1 +4 .
, 1, -, 3, ., 2,
-.+4 -.+4 -.+4 -.+4 -.+4 -.+4
3 . 2 4
.+-,3 .+,1, .+0-, 2+.2 4+1,, 4+4,,
E5PERET 3: DETER!T# #" T9E #PER!T# !D '9!R!'TERST' #" #R"'E PL!TE
PRESSURE PT1 (bar)
!SS "L#$ ETER% "T1 (LP)
R#T#ETER (LP)
TEPER!TURE TT1 (&')
D""ERET! L PRESSURE DPT (mbar)
'!L'UL!TED "L#$ R!TE% 8 (LP)
1+,, ,+/,+4. ,+43 ,+4, ,+20
,+,, ,+,, ,+,, ,+,, ,+,, ,+,,
, 1, -, 3, ., 2,
-.+/ -.+/ -.+/ -.+/ -.+2 -.+4
3 4 / 11
-+/1 -+2-1 -+1. .+,00 .+3,/ 2+31,
PRESSURE PT1 (bar)
!SS "L#$ ETER% "T1 (LP)
R#T#ETER (LP)
TEPER!TURE TT1 (&')
D""ERET! L PRESSURE DPT (mbar)
'!L'UL!TED "L#$ R!TE% 8 (LP)
-+,, 1+02 1+/0 1+/4 1+/1 1+4
,+,, ,+,, ,+,, ,+,, ,+,, ,+,,
, 1, -, 3, ., 2,
-.+0 -.+0 -.+4 -.+4 -.+4 -.+4
3 4 0 11
.+-,3 .+,.1 .+024 4+03, /+//1 +,4-
Experiment 1: Determination of the operation and characteristic of mass flow meter and rotameter The mass flow meter% "T1 7nit LP is defined at conditions , °C, 1+,13- bar (abs)+
P 1 V 1 P 2 V 2 2 = T 1 T 2 Press7re of compressor at 1 bar: 1.0132 xV 1 1 273.15
=
( 1.0132 +1.00 ) x 10.4 24.7 + 273.15
1;10+2 1.0132 xV 1
=
273.15
( 1.0132 + 0.74 ) x 12.5 24.7 + 273.15
1;1+03 1.0132 xV 1 1 273.15
=
( 1.0132 +0.69 ) x 22.7 24.6 + 273.15
1;32+,1 1.0132 xV 1
=
273.15
( 1.0132 + 0.68 ) x 34.1 24.4 + 273.15
1;2-+31 1.0132 xV 1 273.15
=
( 1.0132 + 0.65 ) x 44.0 24.3 + 273.15
1;44+3. 1.0132 xV 1 273.15
=
( 1.0132 + 0.62 ) x 54.3 24.3 + 273.15
1;0,+30
The rotameter 7nit LP is defined at condition -, <'% 1+,13- bar (abs)
1.0132 xV 1 1 293.15
=
( 1.0132 +1.00 ) x 10.4 24.7 + 273.15
1;-,+3. 1.0132 xV 1
=
293.15
( 1.0132 + 0.74 ) x 12.5 24.7 + 273.15
1;-1+3, 1.0132 xV 1 1 293.15
=
( 1.0132 +0.69 ) x 22.7 24.6 + 273.15
1;3/+24 1.0132 xV 1
=
293.15
( 1.0132 + 0.68 ) x 34.1 24.4 + 273.15
1;24+1. 1.0132 xV 1 293.15
=
( 1.0132 + 0.65 ) x 44.0 24.3 + 273.15
1;/1+10 1.0132 xV 1 293.15
=
( 1.0132 + 0.62 ) x 54.3 24.3 + 273.15
1;04+-4
"or press7re compressor at - and 3 bar =7st follow this calc7lation to find 1+
Experiment -: Determination of the operation and characteristic of 6ent7ri meter Press7re of compressor 1 bar:
D1;,+,1-/ m D-;,+,,432 m 0.00635
>;
0.0127
;,+2 E ; (1? >.)?1@ ;(1?,+2.)?1@ ;1+,3-0 P DensitA%B ; RT
¿
5
1.00 x 10
287
N / m
2
J . K x ( 24.3 + 273.15 ) K kg
; 1+1/ C@m3
8 (at PT1 1+,, bar) ;
C d EεπD 2 2 √ 2 ρΔP 4
x √ 2 x 1.17 x 2
2
0.7 x 1.0328 x π
;
x
0.00635
4
; -+/- LP
P B ; RT
¿
287
0.80 x 10
5
N / / m
2
J . K x ( 24.4 + 273.15 ) K kg
x 1000 x 60
; ,+. C@m3
8(at ,+0, bar) ;
C d EεπD EεπD 2 2 √ 2 ρΔP 4
x √ 2 x 0.94 x 2
2
0.7 x 1.0328 x π
;
x
0.00635
4
x 1000 x 60
; -+44. LP
P ; RT
¿
5
0.75 x 10 N / m
287
2
J . K x ( 24.3 + 273.15 ) K kg
;,+0/ C@m3
8(at ,+/2 bar) ;
C d EεπD EεπD 2 2 √ 2 ρΔP 4
x √ 2 x 0.87 x 3
2
0.7 x 1.0328 x π
;
x
0.00635
4
; 3+1.LP
P p; RT
¿
287
5
0.71 x 10 N / m
2
J . K x ( 24.3 + 273.15 ) K kg
;,+03- C@m3
x 1000 x 60
8(at ,+/1 bar) ;
C d EεπD EεπD 2 2 √ 2 ρΔP 4
0.00635 x √ 2 x 0,832 x 4 2
0.7 x 1.0328 x π x
;
4
x 1000 x 60
;3%2.. LP
P ; RT
¿
5
0.69 x 10 N / m
287
2
J . K x ( 24.3 + 273.15 ) K kg
;,+0,0 C@m3
8(at ,+4 bar) ;
C d EεπD EεπD 2 2 √ 2 ρΔP 4
0.00635 x √ 2 x 0.808 x 5 2
0.7 x 1.0328 x π x
;
4
;3+,. LP
P ; RT
¿
287
5
0.68 x 10 N / m
2
J . K x ( 24.3 + 273.15 ) K kg
;,+/04 C@m3
x 1000 x 60
8(at ,+40 bar) ;
C d EεπD EεπD 2 2 √ 2 ρΔP 4
0.7 x 1.0328 x π
;
x
0.00635
x √ 2 x 0.786 x 6
2
4
x 1000 x 60
;.+--LP
"or press7re compressor at - bar =7st follow this calc7lation to find 8+
Experiment 3: Determination of the operation and characteristic of orifice meter Press7re of compressor 1 bar: D1;,+,1-/ m D-;,+,,432 m 0.00635
>;
0.0127
;,+2 E ; (1? >.)?1@ ;(1?,+2.)?1@ ;1+,3-0 P ; RT
¿
287
1.00 x 10
5
N / m
2
J . K x ( 24.7 + 273.15 ) K kg
;1+14 C@m3
8 (at PT1 1+,, bar) ;
C d EεπD EεπD 2 2 √ 2 ρΔP 4
0.00635 x √ 2 x 1.169 x 2 2
;
0.7 x 1.0328 x π x
4
x 1000 x 60
; -+/1 LP
"or press7re compressor at - bar =7st follow this calc7lation to find 8+
DS'USS#: "rom the experiment cond7cted in as flow meter% there are - main ob=ecti6es to achie6e+ "irstlA is to st7dA the operation and characteristic of flow rate b A 7tiliFe mass flowmeter and rotameter+ !fter that is to compare flow rate meas7rement+ D7rin cond7ctin cond 7ctin this experiment %as flow meas7rement bench is 7sed to st7dA the fl7id flow of compressible as+ This eG7ipment% as flow meas7rement bench is 7sed to st7dA the fl7id flow of compressible as+ This eG7ipment 7se 3 different meas7rin de6ice which is orifice meter% 6ent7re meter and rotameter+ This This meas7rement i6e different tApe of res7lt respecti6elA which meas7re the flowrate of compressible as that flow thro7h the de6ice+ The expected res7lt from the orifice meter will res7lt in the increase in fl7id 6elocitA and decrease in press7re d7e to the smaller area of the orifice plate+ Hesides% 6ent7re meter exhibit the same characteristic as orifice+ "rom the experiment 3 obtained% it shows shows that as flowrate of the as increase% the press7re of the as decrease respecti6elA with the press7re tested at 1 bar and - bar+ The same res7lt will obtained when cond7ctin experiment -% the press7re will decrease as flowrate increase+ "or rotameter% it has rotatin free float which indicatin element+ !s flow commence% the float rises 7ntil 7pward and b7oAancA force on it are balance bA b A its weiht and the float will rise in a short distance if the rate of flow is small and 6ice 6ersa+ The le6el of the float are 7sed in meas7red of flow rate+ "rom the res7lt of experiment 1 % the mass of flowmeter and rotameter
readin at standard condition for each press7re increment at 1 bar and - bar show the decrease in press7re as flow rate of as compressor increase+ "rom the experiment cond7cted% flow rate meas7rement was obtained bA 7tiliFe mass flowmeter and rotameter+ Experiment 1 till 3 are cond7cted bA 7tiliFe the rotameter bA 2%1,%-,%3,%.,%2, LP respecti6elA+ The res7lt obtained shows that each increment of rotameter readin will res7lt in increasin of flow rate meas7rement+ "or instance% in experiment - for rotameter readin at 1, LP% the calc7lated flow rate i6es -+44. LP whereas wh ereas for rotameter readin 3, LP% the calc7lated ca lc7lated flowrateis 3+2.. LP+ The same res7lt will obtained in experiment 1 and 3+
'#'LUS#: The ob=ecti6es of this experiment is satisfied which is to obtain the flow rate meas7rement bA 7tiliFin mass flowmeter and rotameter and to compare flow rate meas7rement flow rate+Hoth mass flow meter and rotameter increase with decreasin of press7re and temperat7re+The mass flow meter at standard condition is hiher than rotameter at standard condition+ The characteristics and operation at 6ent7re meter% the calc7lated flow rate increase increase when decreasin of the press7re+ "7rthermore% the operation at orifice meter increase with decreasin of press7re and temperat7re+ The acc7rate mass flow meas7rement of as is diffic7lt to obtain beca7se the as as is a compressible fl7id+ This concl7ded that the 6ol7me of a fixed mass of as and rotameter depends 7pon 7p on the press7re and temperat7re+
