Aonaid choitianta agus comhshó
1 MW = 1000 KW
1 KW = 1000 W
1 KW=861Kcal/h=0.39P
1 W = 1 J/s
0.1MPa=1kg/cm2=10mmearcair colún= 100KPa
1 USTR=3024Kcal/h=3517W（冷量）
1 BTU=0.252kcal/h=1055J
1 BTU/H=0.252kcal/u
1 BTU/H=0.2931W
1 MTU/H=0.2931KW
1 HP(leictreachas)=0.75KW（leictreachas）
1 KW (leictreachas）=1.34HP（leictreachas）
1 RT = 3.517KW
1 KW=0.284RT=860kcal/h=3.412MBH
1 P=2200kcal/h=2.56KW
1 kcal/u = 1.163W
1 W=0.86kcal/u
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
(Luach teirmeach an ghual chaighdeánaigh) Hc=8.14*103W.h/kg
1 MJ=0.034125kg (caighdeánach gual)
1 Nm3（nádúrtha gás）=1. 2143kg(caighdeánach gual)
Eolas coitianta
1 kcal:1 kg d'ardú nó titim teocht an uisce 1 ℃ faoi ghnáthbhrú an atmaisféir, Is é an teas absorbed nó scaoileadh 1 calorie.
Faigheann 1 cileagram oighir 80 calories
Is é an teas vaporization de 1 cileagram uisce ná 539 calories
Is é 4 ℃ dlús uisce an ceann is mó
EER/COP/IPLV，cumas cuisniúcháin/Cóimheas aschuir teasa le hionchur cumhachta. Ciallaíonn EER comhbhrúiteoir, ciallaíonn COP córas, ciallaíonn IPLV meán ualaithe na héifeachtúlachta fuinnimh faoi ualaí éagsúla.
IPLV=2.3% * A+41.5% * B + 46.1% * C+10.1% * D (meán ualaithe)
Am postála: Dec-14-2018
