Refair Oy hinnasto 2016-2017

RECOMMENDATIONS FOR THE DETERMINATION OF CAPILLARY TUBE SIZE
Recommendations for the determination of capillary tube size
Table considers condensing temperature Tc = 45 °C and heat exchanger in capillary..
Increase length 2% per each K of increase of condensing temperature..
TABLE FOR REFRIGERANT R600a (LBP)
QASH M Capillary tube length (m) Capillary tube internal diameter (mm) & Evaporating temperature (°C)
0,6 0,7 0,8 0,9 1
kcal/h kg/h -30 -23,3 -30 -23,3 -30 -23,3 -30 -23,3 -30 -23,3
55 0,69 3,13 3,28
60 0,75 2,64 2,77
65 0,81 2,26 2,36
70 0,87 1,95 2,05
75 0,93 1,71 1,79
80 1,00 1,51 1,58
85 1,06 1,34 1,40 3,03 3,18
90 1,12 1,20 1,25 2,71 2,84
95 1,18 1,08 1,13 2,43 2,55
100 1,25 2,20 2,31
105 1,31 2,00 2,09
110 1,37 1,82 1,91
115 1,43 1,67 1,75
120 1,49 1,54 1,61 3,14 3,28
130 1,62 1,31 1,37 2,67 2,80
140 1,74 1,19 2,31 2,42
150 1,87 2,01 2,11
160 1,99 1,77 1,85 3,33 3,49
170 2,12 1,57 1,64 2,95 3,10
180 2,24 1,40 1,47 2,64 2,77
190 2,37 1,26 1,32 2,37 2,49
200 2,49 1,14 1,19 2,14 2,25
210 2,62 1,03 1,08 1,95 2,04 3,39 3,56
220 2,74 1,77 1,86 3,09 3,25
230 2,87 1,63 1,71 2,82 2,97
240 2,99 1,49 1,57 2,59 2,73
250 3,11 1,38 1,45 2,39 2,51
QASH is the cooling capacity under ASHRAE (LBP) condition corresponding to the indicated mass flow rate M (liquid subcooled down to 32 °C, return gas superheated
up to 32 °C)..
The relationship between length and diameter is, approximately: (L / L 0 ) = (D / D 0 ) 5,4 ..
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