PENGARUH LAJU ALIRAN UDARA TERHADAP KINERJA SISTEM REFRIGERASI PADA TATA UDARA SENTRAL
Abstract: The work of
refrigeration system incentral air conditioning should be set to the cooling
load to obtain the peak performance of the system with efficient energy
consumption. One factor that affect to the the cooling load is the conditioned
air flow rate suppliedin the system.The experiment is conducted by varying air
flow rate (with 4 variations which is 1,152; 1,184; 1,216 and 1,280 m3/s
respectively), to aim the optimum performance of the refrigeration system in
the air conditioning system (central AHU) to consumption efficient levelof
power.
The results is that the refrigeration system performance is not much
influenced by variations ofair flow rate,where the highest coefficient of
performance (COP) of the refrigeration system (5.69) was obtained by air flow
rate (debit) of 1,184 m3/s, about 4% of the COP on the largest debit. The
highest compression ratio (3.5) was obtained at lowest air flow rate (1.152 m3/s), and the lowest
average of power consumption is obtained at the lowest air flow rate 1.152
m3/s, 9% lower than power consumption at thegreatest air flow.While the
performance of the HVAC system is affected by variations in air flow rate,
where is the greatest cooling capacity (62.364 kW) and the highest EER (3.99)
was obtained at the highest flow rate of 1.280 m3/s.
Penulis: M. Nuriyadi
Kode Jurnal: jptmesindd160343