ʻO ka papa ʻaina hoʻololi maʻamau no ka refrigeration

Nā ʻāpana maʻamau a me ka hoʻololi ʻana

1 MW = 1000 KW

1 KW=1000 W

1 KW=861Kcal/h=0.39 P

1 W= 1 J/s

0.1MPa=1kg/cm2=10mmercury kolamu=100KPa

1 USTR=3024Kcal/h=3517W（冷量）

1 BTU=0.252kcal/h=1055J

1 BTU/H=0.252kcal/h

1 BTU/H=0.2931W

1 MTU/H=0.2931KW

1 HP(uila)=0.75KW（uila）

1 KW（uila）=1.34HP（uila）

1 RT=3.517KW

1 KW=0.284RT=860kcal/h=3.412MBH

1 P=2200kcal/h=2.56KW

1 kcal/h=1.163W

1 W=0.86kcal/h

F=9/5 ℃+32

℃=（F-32）5/9

1 CFM=1.699M³/H=0.4719 l/s

1 M³/H=0.5886CFM

1 l/s=2.119CFM

1 GPM=0.06308 l/s

1 l/s=15.85GPM

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

1 Pa=0.1mmH2O=0.0001mH2O

1 mH2O=104Pa=10kPa

(Waiwai wela o ka lanahu ma'amau) Hc=8.14*103W.h/kg

1 MJ=0.034125kg (maʻamau lanahu)

1 Nm3（kūlohelohe kinoea）=1.2143 kg(maʻamau lanahu)

ʻIke maʻamau

1 kcal: 1 kg o ka piʻi ʻana o ka wela o ka wai a hāʻule paha i ka 1 ℃ ma lalo o ke kaomi lewa maʻamau, ʻO ka wela i lawe ʻia a hoʻokuʻu ʻia he 1 kaloli.

Loaʻa i ka 1 kilo o ka hau he 80 calories

ʻO ka wela o ka vaporization o 1 kilokani o ka wai he 539 calories

ʻO 4 ℃ ka nui o ka wai nui

ʻO EER/COP/IPLV, ka mana hoʻoheheʻe / ka ratio o ka hoʻopuka wela i ka mana hoʻokomo.

IPLV=2.3% * A+41.5% * B + 46.1% * C+10.1% * D （awelika kaumaha）