Abstract:
This research was a study about perfonnance of heat of the heat exchanger which had arranged tube
banks model attached on four side as fins , which was put down in the same range and transfered heat
between water and carbon dioxide, which flowed inside the tube. And the water flowed inside the square
shell of heat exchanger designed tube set, which used material that was copper amount 10 tube to put
down in the same range two rows and five backs. There are value ST and SL equal 7.5 cm. Copper tube is
used, which has outside diameter size 12.80 mm., inside diameter size 11.10 mm., thickness 1.70 mm.
Height oftube was 30 cm. and length of fill was 20 mm. Height of shell was 26 em. and thickness of shell
was 1 mm., heat exchanger had width size 20 cm. , length 56 cm. and height 57 cm. The experiment used
carbon dioxide that had mass flow rate 0.002 kg/s ,0.010 kg/s and 0.012 kg/s. Water had mass flow
rate 0.005 kg/s , 0.02 kg/s and 0.035 kg/s and the temperature of water was 29 and 43c. The result of
the experiment was found that water had mass flow rate 0.005 kg/s and carbon dioxide had mass
flow rate 0.012 kg/s, water at the exit of heat exchanger had lower temperature 19.3c.