What it does
The project presents a dual-condenser AC system that reduces energy consumption and compressor pressure by increasing condenser surface area, cutting electricity costs without affecting cooling performance.
Your inspiration
The idea was driven by the rising energy costs and the inefficiency of traditional air conditioning units, especially in Malaysia’s hot climate. The team saw an opportunity to apply thermodynamic principles in a practical way to reduce energy waste and promote sustainability in household cooling systems.
How it works
The system adds a secondary condenser coil to a standard air conditioning unit, increasing the total heat rejection area. This reduces the condensing temperature and compressor pressure ratio, which in turn decreases the energy required for cooling. Sensors monitor real-time temperature, pressure, and energy use, validating the system’s improved performance with up to 21.6% daily energy savings.
Design process
The team began by identifying inefficiencies in current AC systems through market surveys and thermodynamic analysis. They developed CAD models, conducted material and cost analysis, and prototyped the system using an AUX 1-hp split AC unit. Performance was validated through extensive testing in controlled environments with real-world temperature settings. Feedback and iterative improvements followed each prototype phase.
How it is different
Unlike existing systems, this design allows for retrofitting onto standard AC units without major redesigns. It balances technical feasibility, affordability, and ease of installation while delivering real-time energy monitoring and up to 45% savings during peak cooling loads — a unique combination not commonly found in consumer HVAC products.
Future plans
Future developments include refining the modular design for easier installation, incorporating smart IoT controls for dynamic energy optimization, and pursuing commercialisation through partnerships with local HVAC providers. The team also plans to expand the system’s application to institutional and commercial buildings for broader environmental impact.
Share this page on