MIL-HDBK-1003/19
APPENDIX A
Thermosiphoning Air Panels
(Frontflow Systems with RTAP = 11)
SYSTEM NUMBERING CONVENTION
First digit: Mass-area to glazing-area ratio (3, 6, or 9)
Second digit: Thermal storage mass thickness (THICK) (2, 4, or 6)
Third digit: Number of glazings (NGL) (1 or 2)
System
F
G
Uc [alpha] DHC/Ac ed
Number
321
0.277
1.63
0.068
0.95
14.94
0.36
322
0.336
1.54
0.064
0.95
14.94
0.58
341
0.330
1.63
0.068
0.95
28.38
0.36
342
0.398
1.54
0.064
0.95
28.38
0.58
361
0.341
1.63
0.068
0.95
35.79
0.36
362
0.411
1.54
0.064
0.95
35.79
0.58
621
0.477
1.63
0.068
0.95
29.88
0.36
622
0.573
1.54
0.064
0.95
29.88
0.58
641
0.563
1.63
0.068
0.95
56.76
0.36
642
0.673
1.54
0.064
0.95
56.76
0.58
661
0.585
1.63
0.068
0.95
71.58
0.36
662
0.699
1.54
0.064
0.95
71.58
0.58
921
0.649
1.63
0.068
0.95
44.82
0.36
922
0.744
1.54
0.064
0.95
44.82
0.58
941
0.756
1.63
0.068
0.95
85.14
0.36
942
0.896
1.54
0.064
0.95
85.14
0.58
961
0.787
1.63
0.068
0.95
107.37
0.36
962
0.932
1.54
0.064
0.95
107.37
0.58
89
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