Two Phase Heat Transfer Coefficient for Automobile Condenser

• Published in: International journal of vehicle structures and systems Vol. 15; no. 4; pp. 471 - 475
• Main Authors: Shastri, Dhiresh S, Patil, Narhar K, Mahajan, Mangesh R, Bhatkar, Vijay W
• Format: Journal Article
• Language: English
• Published: Chennai MechAero Foundation for Technical Research & Education Excellence 21.12.2023
• Subjects: Condensation; Condenser tubes; Condensers; Cooling; Data points; Energy efficiency; Evaporators; Heat exchangers; Heat transfer; Heat transfer coefficients; Hydrocarbons; Proportional integral derivative; Refrigerants; Regression analysis; Reynolds number; Superheating; Temperature; Tube plate; Vapor compression refrigeration; Variables; Weight reduction
• ISSN: 0975-3060; 0975-3540
• DOI: 10.4273/ijvss.15.4.03

Vapour compression refrigeration (VCR) system was designed, developed and fabricated for testing alternative refrigerants such as R152a, R600a, R290 and mixture of R290/R600a (50/50% by mass) over presently used R134a with aluminium mini channel condenser over conventional round tube plate fin condenser. The heater bank was provided for controlling condensation and evaporator temperature along with sub-cooling and superheating temperature by using PID controllers. All the refrigerants were tested for condensation temperature ranging from 40°C to 55°C while evaporation temperature ranges from -15°C to 15°C. The refrigerant charge was reduced drastically with the mini channel condenser over the conventional condenser by 50% due to low internal volume of condenser. The heat transfer coefficient correlation was developed from the experimental data points and validated with the standard correlations.