TY - JOUR T1 - Characteristics and COP Cascade Refrigeration System using Hydrocarbon Refrigerant (Propane, Ethane and CO2) at Low Temperature Circuit (LTC) AU - M. Idrus Alhamid,Nasruddin ,Darwin R.B.S,Arnas Lubis JO - International Journal of Technology VL - 4 IS - 2 SP - 291 EP - 319 PY - 2014 DA - 2014/01/17 SN - 2087-2100 DO - https://doi.org/10.14716/ijtech.v4i2.125 UR - https://ijtech.eng.ui.ac.id/article/view/1238