Sensible cooling process, Using Thermo Utilities, MS Excel Add-ins

In an air conditioning plant, airflow rate of 2 kg/s passes through a coil. The dry-bulb temperature decreases from 25 C to 10 C. The moisture content of the air is 0.005. Determine the load on the coil. Surface temperature of the coil is above the dew-point temperature i.e. the moisture content is constant.


Inputs

Units

on-coil air, DBT

25,00

C

on-coil air, moisture content

0,005

.

on-coil air, mass flow rate

2,00

kg/s

off-coil air, DBT

10,00

C

off-coil air, moisture content

0,005

.

off-coil air, mass flow rate

2,00

kg/s

Atmospheric pressure

1,01

bar

Output

Dew-point temperature

4,0

C

Specific enthalpy of the on-coil air

37,7592

kJ/kg

Specific enthalpy of the off-coil air

22,6280

kJ/kg

Load on the coil

30,2625

kW


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