Refrigeration and refrigerating machinery 17 Machinery 12 Design and construction 9 Electric machinery 8 Pumping machinery 7 Air conditioning 6 Bearings (Machinery) 6 Fluid dynamics 5 Mixing machinery 5 Vibration 5 Energy conservation 4 Fans (Machinery) 4 Mathematical models 4 Monitoring 4 Refrigerants 4 Thermodynamics 4 Dynamics 3 Electric machinery, Induction 3 Energy consumption 3 Equipment and supplies 3 Heat 3 Industrial safety 3 Machining 3 Maintenance and repair 3 Transmission 3 Case studies 2 Ceiling fans 2 Computational fluid dynamics 2 Computer programs 2 Computer simulation 2