Cooling technology Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments cold water supply cold water return distribution pump water tank circulation pump evaporator 7. expansion valve 8. compressor 9. condenser brine pump control valve liquid cooler 1.11.2012 Aki Valkeapää

Main components and equipments In a hermetic compressor motor and compressor are inside a tight casing. Hermetic compressors are cooled with suction gas in general. Small piston type and scroll compressors are usually hermetic compressors. Hermetic piston compressors are used e.g. in household refrigerators and freezers and in small size cold rooms and display cabinets. These were used earlier also in air conditioning systems. 1.11.2012 Aki Valkeapää

Main components and equipments Hermetic scroll compressors are used nowadays in ground source heat pumps, air to air heat pumps, in small size chillers, direct cooling systems of air handling units etc. They have replaced almost totally piston compressors. They are less moving parts in scroll compressors than in piston compressors and they run with less vibration. 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments In semi-hermetic compressors electric motor and compressor are inside a casing which can be opened, so compressor can be repaired unlike hermetic compressors. Medium and big size piston and screw compressors are semi hermetic compressors. 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Air cooler liquid cooler, installed e.g. on the roof of a building. Fincoil. 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Compressor-condenser unit, outdoor model Koja. 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Condenser is integrated to an AHU Intervent. 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Liquid cooler for indirect condensing 1.11.2012 Aki Valkeapää

Main components and equipments Shell – tube heat exchanger Refrigerant water Refrigerant 1.11.2012 Aki Valkeapää

Main components and equipments Plate heat exchanger as condenser Figure. A plate heat exchanger as a condenser. Hot vapor is flowing downwards and cooling liquid / brine upwards. 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Direct cooling coil of an AHU Coiltech, Fläktwoods. Expansion valve and liquid distributor 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments Shell tube evaporator water water Refrigerant 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Evaporator, gravity coil Fincoil. 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Air cooler (evaporator and fans, forced convection) Fincoil. 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Mechanical expansion valve Danfoss. Figure. Mechanical expansion valve with external pressure equalisation Danfoss. 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Electronic expansion valve (1 = regulator, 2 = electronic expansion valve, 3 = temperature sensor, 4 = pressure sensor) Aittomäki 2008. Figure. Electronic expansion valve Chiller. 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Filter dryers to be installed in the liquid line Danfoss, the right one can be opened and filter can be replaced. 1.11.2012 Aki Valkeapää

Main components and equipments Figure. A sight glass with moisture indicator Danfoss. 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Shut off valves Danfoss. Figure. Solenoid valve Danfoss. Figure. Rotalock valves Danfoss. Figure. Ball valves Danfoss. 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Check valves Danfoss. 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Pressure switches Danfoss. 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Liquid separator EKS Schultze and operation principle Kaappola 2011. 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Pressure indicator / manometer in a chiller. 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Liquid receiver (tank) Arctest. 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Safety / relief valves Castel. 1.11.2012 Aki Valkeapää

Main components and equipments 1.11.2012 Aki Valkeapää

Main components and equipments A real estate scale heat pump 1.11.2012 Aki Valkeapää

Main components and equipments Figure. Flexible steel pipe to avoid vibration from compressor to piping. 1.11.2012 Aki Valkeapää