Lisitra feno momba ny fanaovana kajy amin’ny fampangatsiahana mahazatra!

1. Fanovana ny mari-pana

Atombohy amin’ny fanovana ny mari-pana voalohany tsotra indrindra

Celsius (C) sy Fahrenheit (F)

Fahrenheit = 32 + Celsius × 1.8

Celsius = (Fahrenheit -32) /1.8

Kelvin (K) sy Celsius (C)

Kelvin mari-pana (K) = degre Celsius (C) +273.15

02, fanovana tsindry

Mpa, Kpa, pa, bara

1Mpa = 1000Kpa;

1Kpa = 1000pa;

1Mpa = 10bar;

1bar = 0.1Mpa = 100Kpa;

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

bara, Kpa, PSI

1bar = 14.5psi;

1psi = 6.895Kpa;

mH2O

1 kg / cm2 = 105 = 10 mH2O = 1 bar = 0.1 MPa

1 Pa = 0.1 mmH2O = 0.0001 mH2O

1 mH2O=104 Pa=10 kPa

03. Fiovan’ny hafainganam-pandehan’ny rivotra sy ny habeny

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 (metatra isa-minitra) = 0.3048 m / min = 0.00508 m / s

04. Fahafahana mangatsiaka sy hery

1 KW = 1000 W

1 KW = 861Kkal / h (kcal) = 0.39 P (fahaiza-mihena)

1 W = 1 J / s (Vazivazy / sec)

1 USTR (taonina mangatsiaka amerikana) = 3024Kcal / h = 3517W (fahaizana mangatsiaka)

1 BTU (unit britanika britanika) = 0.252kcal / h = 1055J

1 BTU / H (Fitaovana mafana / ora anglisy) = 0.252kcal / h

1 BTU / H (Fitaovana mafana / ora anglisy) = 0.2931W (fahafaha-mangatsiaka)

1 MTU / H (Fantsona britanika / ora an’arivony an’arivony) = 0.2931KW (fahafaha-mangatsiaka)

1 HP (herinaratra) = 0.75KW (herinaratra)

1 KW (herinaratra) = 1.34HP (herinaratra)

1 RT (fahafahan’ny mangatsiaka) = 3.517KW (fahaiza-mangatsiaka)

1 KW (fahaiza-mangatsiaka) = 3.412MBH (103 britanika hafanana / ora)

1 P (fahaiza-mangatsiaka) = 2200kcal / h = 2.56KW

1 kkal / h = 1.163W

05, raikipohy fanisana tsotra

1. Fisafidianana valizy fanitarana: taonina mangatsiaka + maridrefy 1.25%

2. Herinaratra: 1P = 0.735KW

3. Fiampangana refrigerant: fahaiza-mihena (KW) ÷ 3.516 × 0.58

4. Rano mikoriana masinina mangatsiaka amin’ny rivotra: fahaiza-mihena (KW) ÷ fahasamihafana eo amin’ny mari-pana ÷ 1.163

5. Rano mangatsiaka mikoriana masinina vita hatsiaka amin’ny rano: fahaiza-mihena (KW) × 0.86 ÷ fahasamihafana eo amin’ny mari-pana

6. Fampandehanana rano amin’ny milina visy mangatsiaka rano: (herinaratra fanamafisana KW + compressor power) × 0.86 ÷ fahasamihafana eo amin’ny mari-pana

06. Ny hatevin’ny tsipika sy ny fahaizany mihena

★ 1.5mm2 dia 12A-20A (2650 ~ 4500W)

★ 2.5mm2 dia 20-25A (4500 ~ 5500W)

★ 4 mm2 is 25-32A (5500~7500W)

★ 6 mm2 is 32-40A (7500~8500W)