IHX technology and its Effectiveness in Automotive AC performance
2025-28-0430
To be published on 10/30/2025
- Content
- The Internal Heat Exchanger (IHX) is an important component in modern car air conditioning (AC) systems particularly in AC Lines. It increases cooling efficiency by transferring heat from the high-pressure liquid refrigerant to the low-pressure vapour. By using this technology improves refrigerant sub-cooling and superheating, As a result higher cooling performance, lower energy usage, and less strain on the compressor. It improves vehicle fuel economy and a longer lifespan for AC components. Also, IHX prevents liquid refrigerant from entering the compressor, reducing the danger of damage and increasing system reliability. This optimization helps maintain consistent refrigerant flow, reduces energy consumption, and improves the overall Coefficient of Performance (COP). The implementation of IHX technology in AC lines results in more compact, streamlined system designs, which allow for better temperature management, faster response times, and lesser cooling loads. IHX can boost cooling capacity and efficiency in AC lines with 10-15% in comparison to normal AC lines without IHX. It reduces weight and space needs by making the system more compact. IHX is a useful solution for automotive industry/AC lines since it makes easy installation and maintenance. As a result, the adoption of IHX in AC lines is a key innovation for boosting the performance, reliability, and sustainability of air conditioning systems, contributing to energy efficiency and reduced environmental impact.
- Citation
- Dudeja, K., and Singh, S., "IHX technology and its Effectiveness in Automotive AC performance," SAE Technical Paper 2025-28-0430, 2025, .