27 ENERGY AND HEAT TRANSFER ENGINEERING

#	Name
27.010	Energy and heat transfer engineering in general
27.015	Energy efficiency. Energy conservation in general Including energy audits Energy management systems, see 03.100.70 *Energy efficiency of buildings, see 91.120.10
27.020	Internal combustion engines
27.040	Gas and steam turbines. Steam engines
27.060	Burners. Boilers
27.070	Fuel cells
27.075	Hydrogen technologies *Industrial application of gases, see 71.100.20
27.080	Heat pumps
27.100	Power stations in general
27.120	Nuclear energy engineering
27.140	Hydraulic energy engineering
27.160	Solar energy engineering
27.180	Wind turbine systems and other alternative sources of energy
27.190	Biological sources and alternative sources of energy
27.200	Refrigerating technology
27.220	Heat recovery. Thermal insulation