#TITLE_ALTERNATIVE#

• Main Author: Slamet (NIM 231 97 020), Agus
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/7076
• Institution: Institut Teknologi Bandung

Abstract : <br /> <br /> <br /> To decrease the flammability of hydrocarbon refrigerant, a novel hydrocarbon refrigerant with LFS (Lower flammabilitySuppresant) addition was developed. It is expected that the refrigerant has higher LEL and lower UEL than ordinary hydrocarbon refrigerant. <br /> <br /> <br /> In this work series of experiments were carried out to find the LEL and UEL various mixture of hydrocarbon and hydrocarbon + LFS with air from 2% up to 10% of refrigerant volume fraction. The experiment were done in a constant volume combustion cylinder. The cylinder was equiped with a spark connected to an ignition system. Temperature and Pressure transduser connected to PC base data acquitition were attached in the cylinder to measure the gas temperature and pressure during combustion process. The experimental results shows that compared to ordinary hydrocarbon refrigerant, the hydrocarbon + LFS has higher LEL and lower UEL. <br /> <br /> <br /> Theoretical study was also carried out in this research. Le Chateliers rules and Spaldings theory were compared with the experimental results. The comparison show that the Spaldings theory is more accurate to predict the flammability compare to the Le Chatelier s rules. <br />