Heat Energy Recovery System
Heat Energy Recovery System ( HERS ; English for heat energy recovery system ) is a system for converting thermal energy from the exhaust gas of internal combustion engines into electrical or mechanical energy. In the FIA World Endurance Championship , such systems have been permitted by the regulations since 2012. Analogous to KERS , which has been approved for use in Formula 1 since the 2009 season , HERS has been usable in Formula 1 since the 2014 season as part of the Energy Recovery System .
Mode of action
The HERS should lead to an increase in the efficiency of the drive train so that the vehicles are more environmentally friendly. For the conversion of thermal energy into a higher-value form of energy , mainly secondary thermodynamic cycle processes are used in stationary combustion systems. According to the current state of the art, these systems are primarily unsuitable for racing vehicles due to their weight despite their high power output. The most promising is the downstream connection of a power turbine or the direct coupling of the conventional turbocharger with an electric machine. The energy recuperated electrically by the system leads to the further drive power of the vehicle via the electric motor of the KERS. The total energy used from the KERS and the HERS must not exceed 4000 kilojoules per race lap in the 2014 Formula 1 season .
Individual evidence
- ↑ 2013 Improvement in efficiency of a race engine by using a heat energy recovery system , page 3, accessed May 12, 2013.
- ↑ FIA Technical Regulations 2014 (PDF; 2.9 MB), page 21, Art. 5.1.6 accessed May 12, 2013.
- ↑ 2013 Improvement in efficiency of a race engine by using a heat energy recovery system , page 17, accessed May 12, 2013.
- ↑ FIA Technical Regulations 2014 (PDF; 2.9 MB), page 21, Art. 5.2.3 accessed May 12, 2013.