About course

Historical and environmental aspects. Single-stage systems, refrigeration Carnot cycle, standard refrigeration cycle, cycles with undercooling and overheating cycle with intermediate heat exchanger. Multi-stage systems, additional components cycles with multiple components. Fixed expansion devices, manual expansion valves, capillary tubes, short tubes. Variable expansion devices, expansion valves float-type valves, pressure static expansion, thermostatic expansion valves, electric valves. Reciprocating compressors, the compression process, volumetric efficiency, methods of capacity control. Psychometric properties. Psychometric processes. Psychometric single zone systems, control of external air, summer classical system. Psychometric multizone systems, systems with terminal reheat, dual duct systems, variable air volume systems.