Application of calcium chloride as an additive for secondary refrigerant in the air conditioning system type chiller to minimized energy consumption

7th International Conference on Cooling & Heating Technologies

材料科学;物理学

Suwono, A.^1 ; Indartono, Y.S.^1 ; Irsyad, M.^1,2 ; Al-Afkar, I.C.^1

Faculty of Mechanical and Aeronautical Engineering, Institut Teknologi Bandung, Indonesia^1

Mechanical Engineering Department, Lampung University, Bandar Lampung, Indonesia^2

关键词: Commercial building;    Energy problem;    Evaporator temperature;    Reduce energy consumption;    Salt hydrates;    Secondary refrigerant;    Temperature history;    Thermal characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/88/1/012035/pdf
DOI  :  10.1088/1757-899X/88/1/012035

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

One way to resolve the energy problem is to increase the efficiency of energy use. Air conditioning system is one of the equipment that needs to be considered, because it is the biggest energy user in commercial building sector. Research currently developing is the use of phase change materials (PCM) as thermal energy storage (TES) in the air conditioning system to reduce energy consumption. Salt hydrates have been great potential to be developed because they have been high latent heat and thermal conductivity. This study has used a salt hydrate from calcium chloride to be tested in air conditioning systems type chiller. Thermal characteristics were examined using temperature history (T-history) test and differential scanning calorimetry (DSC). The test results showed that the thermal characteristics of the salt hydrate has been a high latent heat and in accordance with the evaporator temperature. The use of salt hydrates in air conditioning system type chiller can reduce energy consumption by 51.5%.