13-refrigeration system with two stage compressionVocational Education Equipment For School Lab Air Conditioner Training Equipment Brand: ShouldShine Model: SR2013 Learning Objectives / Experiments - design and function of a refrigeration system with two-stage compression and injection intercooling - effect of the inlet temperature at the HP compressor on the efficiency of the compression * with intercooling * without intercooling - effect of the additional refrigerant intercooling - distribution of the compressor pressure ratios - represent and understand the refrigeration cycle process in the log p-h diagram Specification [1] refrigeration system with two-stage compression [2] hermetic low and high pressure compressors [3] adjustable intercooling via refrigerant injection [4] heat exchange for additional supercooling of the liquid refrigerant [5] closed refrigeration chamber contains evaporator with fan and adjustable electric heater as cooling load [6] digital display for temperatures, drive power of the compressors and cooling load power [7] software for data acquisition with USB under Windows Vista or Windows 7 with online display of the log p-h diagram [8] refrigerant R404a, CFC-free Technical Data Low pressure compressor (LP) - displaced volume: 25,93cm³ - power consumption: 550W - refrigeration capacity: 1744W at -10/32°C High pressure compressor (HP) - displaced volume: 8,86cm³ - power consumption: aprrox. 375W - refrigeration capacity: 583W at -10/32°C Measuring ranges - flow rate: 1x 2...29L/h, 1x 4...40L/h - pressure: 1x -1...15bar, 2x -1...24bar - temperature: 8x -75...125°C - power: 0...562W, 0...750W, 0...2250W Dimensions and Weight LxWxH: 1900x790x1900mm Weight: approx. 283kg Required for Operation 230V, 50/60Hz, 1 phase
