EML 3035 USF Simple Graphical User Interface Using Matlab Problem

EML 3035 – Programming Concepts ProjectS21
Graphical User Interface
Due date
December 3rd, 2021 @ 11:59PM. Late projects are not considered.
Goal
To gain familiarity with the Matlab Graphical User Interface (GUI) by:
•
Creating a simple GUI to interpolate Thermodynamics tables.
Submission guidelines
Upload a zip file (compressed file, .zip extension) to Canvas under the Project 2 assignment in
the Projects Module containing the GUI function .m file and the GUI figure .fig file. Both
files should have the same name. The difference is the extension: .m and .fig
Key functions
handles
guidata(hObject, handles)
callback functions
str2double
loops
if statements
Problem to be solved
All of you have taken Thermodynamics at this point. Hence you will be familiar with the table
shown in Figure 1.
1
Final PDF to printer
956
PROPERTY TABLES AND CHARTS
908
PROPERTY TABLES AND CHARTS
TABLE A–17
TA B L E A– 1 7 E
Ideal-gas properties of air
Ideal-gas properties of air
T
K
200
210
220
230
240
h
kJ/kg
199.97
209.97
219.97
230.02
240.02
Pr
u
kJ/kg
vr
s°
kJ/kg·K
0.3363
0.3987
0.4690
0.5477
0.6355
142.56
149.69
156.82
164.00
171.13
1707.0
1512.0
1346.0
1205.0
1084.0
1.29559
1.34444
1.39105
1.43557
1.47824
T T
RK
h h
kJ/kg
Btu/lbm
PPr r
uu
kJ/kg
Btu/lbm
vrv
r
s°s°
kJ/kg·K
Btu/lbm·R
T
R
580
586.04 0.3363
14.38
419.55
115.7
2.37348
360
85.97
61.29
396.6
0.50369
1600
590
596.52
15.31
427.15 110.6
2.39140
380
90.75
0.4061
64.70
346.6
0.51663
1650
600
607.02
16.28
434.78 105.8
2.40902
400
95.53
68.11
305.0
0.52890
1700
610
617.53 0.4858
17.30
442.42
101.2
2.42644
420
100.32
0.5760
71.52
270.1
0.54058
1750
620
628.07
18.36
450.09
96.92
2.44356
440 105.11
0.6776
74.93
240.6
0.55172
1800
250
250.05
0.7329
178.28
979.0
1.51917
630 109.90
638.63 0.7913
19.84
457.78
92.84
460
78.36
215.33 2.46048
0.56235
1850
260
260.09
0.8405
185.45
887.8
1.55848
640 114.69
649.22 0.9182
20.64
465.50
88.99
480
81.77
193.65 2.47716
0.57255
1900
270
270.11
0.9590
192.60
808.0
1.59634
650 119.48
659.84 1.0590
21.86
473.25
85.34
500
85.20
174.90 2.49364
0.58233
1950
280
280.13
1.0889
199.75
738.0
1.63279
660
670.47
23.13
481.01
81.89
2.50985
520 124.27
1.2147
88.62
158.58
0.59173
2000
285
285.14
1.1584
203.33
706.1
1.65055
670
681.14
24.46
488.81
78.61
2.52589
537 128.10
1.3593
91.53
146.34
0.59945
2050
290
290.16
1.2311
206.91
676.1
1.66802
680 129.06
691.82 1.3860
25.85
496.62
75.50
540
92.04
144.32 2.54175
0.60078
2100
295
295.17
1.3068
210.49
647.9
1.68515
690 133.86
702.52 1.5742
27.29
504.45
72.56
560
95.47
131.78 2.55731
0.60950
2150
298
298.18
1.3543
212.64
631.9
1.69528
700
713.27
28.80
512.33
69.76
2.57277
580 138.66
1.7800
98.90
120.70
0.61793
2200
300
300.19
1.3860
214.07
621.2
1.70203
710 143.47
724.04 2.005
30.38 102.34
520.23
67.07
600
110.88 2.58810
0.62607
2250
305
305.22
1.4686
217.67
596.0
1.71865
720 148.28
734.82 2.249
32.02 105.78
528.14
64.53
620
102.12 2.60319
0.63395
2300
310
310.24
1.5546
221.25
572.3
1.73498
730 153.09
745.62 2.514
33.72 109.21
536.07
62.13
640
94.30 2.61803
0.64159
2350
315
315.27
1.6442
224.85
549.8
1.75106
740 157.92
756.44 2.801
35.50 112.67
544.02
59.82
660
87.27 2.63280
0.64902
2400
320
320.29
1.7375
228.42
528.6
1.76690
750 162.73
767.29 3.111
37.35 116.12
551.99
57.63
680
80.96 2.64737
0.65621
2450
325
325.31
1.8345
232.02
508.4
1.78249
760 167.56
778.18 3.446
39.27 119.58
560.01
55.54
700
75.25 2.66176
0.66321
2500
330
330.34
1.9352
235.61
489.4
1.79783
780 172.39
800.03 3.806
43.35 123.04
576.12
51.64
720
70.07 2.69013
0.67002
2550
740
65.38 2.71787
0.67665
2600
340
340.42
2.149
242.82
454.1
1.82790
800 177.23
821.95 4.193
47.75 126.51
592.30
48.08
760
61.10 2.74504
0.68312
2650
350
350.49
2.379
250.02
422.2
1.85708
820 182.08
843.98 4.607
52.59 129.99
608.59
44.84
360
360.58
2.626
257.24
393.4
1.88543
840 186.94
866.08 5.051
57.60 133.47
624.95
41.85
780
57.20 2.77170
0.68942
2700
370
370.67
2.892
264.46
367.2
1.91313
860 191.81
888.27 5.526
63.09 136.97
641.40
39.12
800
53.63 2.79783
0.69558
2750
380
380.77
3.176
271.69
343.4
1.94001
880 196.69
910.56 6.033
68.98 140.47
657.95
36.61
820
50.35 2.82344
0.70160
2800
840
47.34 2.84856
0.70747
2850
390
390.88
3.481
278.93
321.5
1.96633
900 201.56
932.93 6.573
75.29 143.98
674.58
34.31
860
44.57 2.87324
0.71323
2900
400
400.98
3.806
286.16
301.6
1.99194
920 206.46
955.38 7.149
82.05 147.50
691.28
32.18
Figure
properties
sorted
by temperature,
T, in7.761
Kelvin151.02
or Rankine.
stands
880
42.01 h 2.89748
0.71886 for 2950
410 1. Ideal-gas
411.12
4.153
293.43of air
283.3
2.01699
940 211.35
977.92
89.28
708.08
30.22
900
216.26
8.411
154.57
0.72438
420
4.522 pressure
300.69
266.6 Vr2.04142
960
1000.55
97.00
725.02
enthalpy,
Pr421.26
for relative
and
is relative
volume.
Table
on the
left is 28.40
SI39.64
units2.92128
and table3000
430
431.43
4.915
307.99
251.1
2.06533
980 221.18
1023.25 105.2
741.98
26.73
920
9.102
158.12
37.44 2.94468
0.72979
3050
on the
is English
940
9.834
161.68
35.41 2.96770
0.73509
3100
440right441.61
5.332units.
315.30
236.8
2.08870
1000 226.11
1046.04 114.0
758.94
25.17
960
165.26
33.52 2.99034
0.74030
3150
450
451.80
5.775
322.62
223.6
2.11161
1020 231.06
1068.89 10.61
123.4
776.10
23.72
980
168.83
31.76 3.01260
0.74540
3200
460
462.02
6.245
329.97
211.4
2.13407
1040 236.02
1091.85 11.43
133.3
793.36
23.29
1000
172.43
30.12 3.03449
0.75042
3250
470
472.24
6.742
337.32
200.1
2.15604
1060 240.98
1114.86 12.30
143.9
810.62
21.14
1040
14.18
179.66
27.17 3.05608
0.76019
3300
7.268 we
344.70
189.5 other
2.17760properties
1080 250.95
1137.89
155.2
827.88
19.98
For a480
given 482.49
temperature,
can obtain
such
as
enthalpy
(h),
relative
pressure
1080
186.93
24.58 3.07732
0.76964
3350
490
492.74
7.824
352.08
179.7
2.19876
1100 260.97
1161.07 16.28
167.1
845.33
18.896
(Pr) or
Similarly,
property,
such 194.25
as
enthalpy,
can also 3400
1120
22.30we3.09825
0.77880
500 relative
503.02volume
8.411 (Vr).
359.49
170.6 given
2.21952a different
1120 271.03
1184.28 18.60
179.7
862.79
17.886
1160
281.14
201.63
20.29 3.11883
0.78767
510the other
513.32 properties
9.031
366.92
162.1 with
2.23993such
1140
1207.57
193.1
880.35
obtain
that go along
enthalpy.
The21.18
problem
arises16.946
when
we
need to3450
1200
209.05
18.51 3.13916
0.79628
3500
520
523.63
9.684
374.36
154.1
2.25997
1160 291.30
1230.92 24.01
207.2
897.91
16.064
301.52
216.53
16.93 in3.15916
0.80466
look 530
up properties
for a temperature
(or any
other1240
property)
that27.13
is not directly
our table. 3550
533.98 10.37
381.84
146.7
2.27967
1180
1254.34
222.2
915.57 given
15.241
224.05
15.52
0.81280
3600
540
544.35
389.34 is 326.3
139.7 K,
2.29906
1277.79
238.0other933.33
14.470for3.17888
For instance,
if my11.10
temperature
what 1280
is1200
the 311.79
value
of 30.55
the
properties
such
1320
322.11
34.31
231.63
14.25
0.82075
3650
550
554.74 11.86
396.86
133.1
2.31809
1220
1301.31 254.7
951.09
13.747 3.19834
1360
332.48
239.25
13.12
0.82848
3700
temperature?
Or if12.66
my relative
is 1.185,
is the38.41
value of
the other
properties
560
565.17
404.42 pressure
127.0 (Pr)
2.33685
1240 what
1324.93
272.3
968.95
13.069
3.21751
1400 342.90
42.88
246.93
12.10
0.83604
3750
570
575.59
13.50
411.97
121.2
2.35531
corresponding to such Pr?
1440 353.37
47.75
254.66
11.17
0.84341
3800
1480 363.89
53.04
262.44
10.34
0.85062
3850
1520 374.47
58.78
270.26
9.578 0.85767
3900
In these cases, we need to interpolate. The primary
objective
your GUI
will be 8.890
to perform
1560
385.08 of 65.00
278.13
0.86456
3950
such interpolation for you given the value of one of the properties.
Interpolation equation
Let’s think general. Imagine we know a variable with a value of x, which falls between values x1
and x2 given in the table. For such value of x, we need to find the value y of another variable.
Figure 2 summarizes this idea in a graphical way.
cen22672_app01_881-930.indd 908
11/06/17 09:32 AM
cen22672_app02_931-972.indd
2
956
h
Btu/lbm
395.74
409.13
422.59
436.12
449.71
463.37
477.09
490.88
504.71
518.71
532.55
546.54
560.59
574.69
588.82
603.00
617.22
631.48
645.78
660.12
674.49
688.90
703.35
717.83
732.33
746.88
761.45
776.05
790.68
805.34
820.03
834.75
849.48
864.24
879.02
893.83
908.66
923.52
938.40
953.30
968.21
983.15
998.11
1013.1
1028.1
1043.1
1058.1
1073.2
Variable given: x
Variable to be found: y
x1
y1
x2
y2
x1, x2, y1, y2 are values from the table
x is a given value that falls between x1 and x2
y is the value to be found through interpolation
Figure 2. General table with variables x and y.
In order to find y we can use the following formula:
𝑦 = 𝑦! +
𝑦” − 𝑦!
(𝑥 − 𝑥! )
𝑥” − 𝑥!
Feel free to use any other interpolation formula if you feel more comfortable with it.
Basic design of GUI
This projects admits flexibility with the GUI design. At the very least, it should present the
components shown in Figure 3.
3
T
h
Pr
Eng. Units
Vr
Clear
Figure 3. Basic GUI design. It contains 4 text boxes for temperature (T), enthalpy (h), relative
pressure (Pr) and relative volume (Vr). Also, a units radio button and a clear push button.
Your GUI must at least contain:
•
•
•
4 text boxes for temperature (T), enthalpy (h), relative pressure (Pr) and relative
volume (Vr).
A units radio button. The default units will be SI units. By clicking in the radio button,
the user can interpolate values in the English units table.
A clear push button that will erase all text boxes.
NOTE: the units radio button is not a units conversion button. It does not convert units. It is
simply a way to choose which table you want to work with, either the one with SI units or the
one with English units.
The way the GUI should work
Once completed, the way the GUI should operate is as follows: the user types in a value for one
and only one of the 4 properties (temperature, enthalpy, relative pressure or relative volume) in
the respective text box and when it hits enter, the rest of the text boxes should populate with the
proper interpolated values for those properties.
If the user enters a value that is out range, the GUI should display an error message alerting the
user about this issue. You can display this error in many ways: an edit text box, a dialog box, etc.
Once the user gets the error message, the user can clear all boxes and type in a correct value. In
the case of a dialog box, you can also block program execution until the user closes the dialog
box (there is a specific function you can use for this).
When the user clicks on the CLEAR button, it should erase the content of all 4 text boxes at
once.
4
When the user wants to work with the English units table, it should select the radio button and
then enter a property value in the corresponding text box.
Table range
You do not need to type in the whole A-17 and A-17E tables into Matlab. You can limit yourself
to the range of values shown in Figure 1. Keep in mind the only variables required for this GUI
are temperature, enthalpy, relative pressure and relative volume. You can ignore the rest.
You will have to manually enter the values for such properties in your script. You can do so by
creating two matrices: one for table A-17 and another for table A-17E. You can define these
matrices in the Opening function (OpeningFcn) of your GUI script.
Grading criteria
The project will be graded based on completeness and proper operation of the GUI interface.
Additional features to the basic design will also be rewarded, but are not required.
5