Sovutgichni hisoblashning umumiy formulalarining to’liq ro’yxati!

1. Haroratning konversiyasi

Birinchi oddiy harorat konvertatsiyasidan boshlang

Selsiy (C) va Farengeyt (F)

Farengeyt = 32 + Selsiy × 1.8

Selsiy = (Farengeyt -32) /1.8

Kelvin (K) va Selsiy (C)

Kelvin harorati (K) = Selsiy (C) +273.15

02, bosimni o’zgartirish

Mpa, kpa, pa, bar

1Mpa = 1000Kpa;

1Kpa = 1000pa;

1Mpa = 10bar;

1bar = 0.1Mpa = 100Kpa;

1 atmosfera bosimi = 101.325Kpa = 1bar = 1kg;

bar, Kpa, PSI

1 bar = 14.5 ppi;

1psi = 6.895Kpa;

mH2O

1 kg/sm2 = 105 = 10 mH2O = 1 bar = 0.1 MPa

1 Pa = 0.1 mmH2O = 0.0001 mH2O

1 mH2O = 104 Pa = 10 kPa

03. Shamol tezligi va hajmining konversiyasi

1 CFM (cubic feet per minute)=1.699 M³/H=0.4719 l/s

1 M³/H=0.5886CFM (cubic feet/minute)

1 l/s=2.119CFM (cubic feet per minute)

1 fpm (daqiqada oyoq) = 0.3048 m/min = 0.00508 m/s

04. Sovutish quvvati va quvvati

1 kVt = 1000 Vt

1 KVt = 861Kkal/soat (kkal) = 0.39 P (sovutish quvvati)

1 Vt = 1 J/s (hazil/sek)

1 USTR (AQSh sovuq tonna) = 3024Kkal/soat = 3517W (sovutish quvvati)

1 BTU (Britaniya issiqlik birligi) = 0.252kkal/soat = 1055J

1 BTU/soat (Britaniya issiqlik birligi/soat) = 0.252kkal/soat

1 BTU/soat (Britaniya issiqlik birligi/soat) = 0.2931 Vt (sovutish quvvati)

1 MTU/soat (ming Britaniya issiqlik birligi/soat) = 0.2931KVt (sovutish quvvati)

1 HP (elektr quvvati) = 0.75KVt (elektr)

1 kVt (elektr quvvati) = 1.34 ot kuchi (elektr energiyasi)

1 RT (sovuq quvvati) = 3.517KVt (sovuq quvvati)

1 KVt (sovutish quvvati) = 3.412MBH (103 Britaniya issiqlik birligi/soat)

1 P (sovutish quvvati) = 2200kkal/soat = 2.56KVt

1 kkal/soat = 1.163 Vt

05, oddiy hisoblash formulasi

1. Kengaytirish valfini tanlash: sovuq tonna + 1.25% marj

2. Matbuot kuchi: 1P = 0.735KVt

3. Sovutgichning zaryadlanishi: sovutish quvvati (KVt) ÷ 3.516 × 0.58

4. Havo sovutiladigan mashinaning suv oqimi: sovutish quvvati (KVt) ÷ harorat farqi ÷ 1.163

5. Suv bilan sovutiladigan vintli mashinaning sovuq suv oqimi: sovutish quvvati (KVt) × 0.86 ÷ harorat farqi

6. Suv bilan sovutiladigan vintli mashinaning sovutish suvi oqimi: (sovutish quvvati KVt + kompressor quvvati) × 0.86 ÷ harorat farqi

06. Chiziq qalinligi va sovutish quvvati

★ 1.5mm2-12A-20A (2650 ~ 4500W)

★ 2.5mm2-20-25A (4500 ~ 5500W)

★ 4 mm2 is 25-32A (5500~7500W)

★ 6 mm2 is 32-40A (7500~8500W)