Frigofrik araçlarda soğutucu kapasitesi seçimi

Frigofrik araçların soğutucuları;aracın çalışacağı sıcaklık bölgesine, kasa ölçülerine, kasa panel özelliği ve kapı açma sayısına göre zamanla değişiklik göstermektedir. Örneğin yeni bir araç ve soğutucusuyla saatte 4 defa dağıtım amaçlı kasa kapısı açılarak soğutma enerjisi kaybıyla altı yıllık soğutucu ve kasanın performansı aynı değildir.

Kasa ve soğutucular ortalama yılda %15 performans yitirirler.

Bu amaçla kullanılan

Refrigeration capacity according to DIN 8959
at 0°C box temperature / +30°C ambient temperature (FNA : k = 0.70)
box dimensions: Dim
inside length 4.20 5.20 6.20 7.40 10.40 13.40 m
inside width 2.45 2.45 2.45 2.45 2.45 2.45 m
inside height 2.20 2.20 2.20 2.40 2.40 2.40 m
mean surface 51.36 60.83 70.31 85.65 115.26 144.87 m2
inside volume 22.64 28.03 33.42 43.51 61.15 78.79 m3
required air capacity30- / 60-times (loaded/empty) 679 / 1,358 841 / 1,682 1,002 / 2,005 1,305 / 2,611 1,835 / 3,669 2,364 / 4,727 m3/h
wall heat penetration:
k-value (new) = 0.70 W / m2 °C 1,079 1,277 1,477 1,799 2,420 3,042 W
after 6 years (30% aging -> k-value = 0.91) 1,402 1,661 1,919 2,338 3,147 3,955 W
after 9 years (50% aging -> k-value = 1.05) 1,618 1,916 2,215 2,698 3,631 4,563 W
door opening losses:
up to 2 customers per h ( factor = 1,2 ) 634 785 936 1,218 1,712 2,206 W
3 customers per h ( factor = 1,8 ) 951 1,177 1,404 1,828 2,568 3,309 W
4 customers per h ( factor = 2,4 ) 1,268 1,570 1,871 2,437 3,425 4,412 W
5 customers per h ( factor = 3,0 ) 1,585 1,962 2,339 3,046 4,281 5,515 W
required refrigeration capacity for long distance transport:
with ATP – safety factor of 75%:
as manufactured (new) 1,887 2,236 2,584 3,148 4,236 5,324 W
6 years aged 2,454 2,906 3,359 4,092 5,507 6,921 W
9 years aged 2,831 3,353 3,876 4,721 6,354 7,986 W
required refrigeration capacity for distribution transport:
up to 2 customers per h (factor 1.6 = 62%)
as manufactured (new) 1,712 2,740 2,062 3,300 2,412 3,860 3,017 4,827 4,133 6,612 5,248 8,398 W
6 years aged 2,036 3,258 2,445 3,913 2,855 4,568 3,557 5,691 4,859 7,774 6,161 9,858 W
9 years aged 2,252 3,603 2,701 4,321 3,150 5,041 3,916 6,266 5,343 8,549 6,770 10,831 W
3 customers per h (factor 1.8 = 55%)
as manufactured (new) 2,029 3,653 2,455 4,418 2,880 5,184 3,626 6,527 4,989 8,980 6,352 11,433 W
6 years aged 2,353 4,235 2,838 5,108 3,323 5,981 4,166 7,498 5,715 10,287 7,264 13,076 W
9 years aged 2,569 4,624 3,093 5,568 3,618 6,513 4,525 8,146 6,199 11,158 7,873 14,171 W
4 customers per h (factor 2.0 = 50%)
as manufactured (new) 2,346 4,693 2,847 5,694 3,348 6,696 4,235 8,471 5,845 11,690 7,455 14,909 W
6 years aged 2,670 5,340 3,230 6,460 3,791 7,582 4,775 9,550 6,571 13,142 8,367 16,735 W
9 years aged 2,886 5,771 3,486 6,971 4,086 8,172 5,135 10,269 7,055 14,110 8,976 17,952 W
5 customers per h (factor 2.2 = 45%)
as manufactured (new) 2,663 5,859 3,239 7,127 3,816 8,395 4,844 10,658 6,701 14,742 8,558 18,827 W
6 years aged 2,987 6,571 3,623 7,970 4,259 9,369 5,384 11,845 7,427 16,340 9,470 20,835 W
9 years aged 3,203 7,046 3,878 8,532 4,554 10,019 5,744 12,636 7,911 17,405 10,079 22,173 W

at 0°C box temperature / +30°C ambient temperature

Refrigeration capacity according to DIN 8959
at -20°C box temperature / +30°C ambient temperature (FRC : k = 0.40)
box dimensions: Dim
inside length 4.20 5.20 6.20 7.40 10.40 13.40 m
inside width 2.45 2.45 2.45 2.45 2.45 2.45 m
inside height 2.20 2.20 2.20 2.40 2.40 2.40 m
mean surface 52.52 62.12 71.72 87.24 117.24 147.24 m2
inside volume 22.64 28.03 33.42 43.51 61.15 78.79 m3
required air capacity30- / 60-times (loaded/empty) 679 / 1,358 841 / 1,682 1,002 / 2,005 1,305 / 2,611 1,835 / 3,669 2,364 / 4,727 m3/h
wall heat penetration:
k-value (new) = 0.40 W / m2 °C 1,050 1,242 1,434 1,745 2,345 2,945 W
after 6 years (30% aging -> k-value = 0.52) 1,366 1,615 1,865 2,268 3,048 3,828 W
after 9 years (50% aging -> k-value = 0.60) 1,576 1,864 2,152 2,617 3,517 4,417 W
door opening losses:
up to 2 customers per h ( factor = 1.2 ) 943 1,168 1,392 1,813 2,548 3,283 W
3 customers per h ( factor = 1.8 ) 1,415 1,752 2,089 2,720 3,822 4,925 W
4 customers per h ( factor = 2.4 ) 1,887 2,336 2,785 3,626 5,096 6,566 W
5 customers per h ( factor = 3.0 ) 2,358 2,920 3,481 4,533 6,370 8,208 W
required refrigeration capacity for long distance transport:
with ATP – safety factor of 75%:
as manufactured (new) 1,838 2,174 2,510 3,053 4,103 5,153 W
6 years aged 2,390 2,826 3,263 3,969 5,334 6,699 W
9 years aged 2,757 3,261 3,765 4,580 6,155 7,730 W
required refrigeration capacity for distribution transport:
up to 2 customers per h (factor 1.6 = 62 %)
as manufactured (new) 1,994 3,190 2,410 3,856 2,827 4,523 3,558 5,692 4,893 7,828 6,228 9,964 W
6 years aged 2,309 3,694 2,783 4,453 3,257 5,221 4,081 6,530 5,596 8,954 7,111 11,378 W
9 years aged 2,519 4,030 3,031 4,850 3,544 5,670 4,430 7,088 6,065 9,704 7,700 12,320 W
3 customers per h (factor 1.8 = 55 %)
as manufactured (new) 2,465 4,437 2,994 5,389 3,523 6,341 4,464 8,036 6,167 11,100 7,869 14,165 W
6 years aged 2,780 5,005 3,367 6,060 3,953 7,116 4,988 8,978 6,870 12,366 8,753 15,755 W
9 years aged 2,990 5,383 3,615 6,508 4,240 7,632 5,337 9,606 7,339 13,211 9,342 16,815 W
4 customers per h (factor 2.0 = 50 %)
as manufactured (new) 2,937 5,874 3,578 7,156 4,219 8,438 5,371 10,742 7,441 14,882 9,511 19,022 W
6 years aged 3,252 6,504 3,951 7,902 4,650 9,299 5,894 11,788 8,144 16,288 10,394 20,788 W
9 years aged 3,462 6,924 4,199 8,399 4,936 9,873 6,243 12,486 8,613 17,226 10,983 21,966 W
5 customers per h (factor 2.2 = 45 %)
as manufactured (new) 3,409 7,499 4,162 9,156 4,915 10,814 6,277 13,810 8,715 19,173 11,152 24,535 W
6 years aged 3,724 8,192 4,535 9,976 5,346 11,761 6,801 14,962 9,418 20,720 12,036 26,479 W
9 years aged 3,934 8,654 4,783 10,523 5,633 12,392 7,150 15,729 9,887 21,752 12,625 27,774 W

AB standartlarına göre;

 

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