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Refrigeration System With Two-Stage Compression Didactic Equipment Vocational Training Equipment Refrigeration Training Equipment

Item No.: ET 430
Refrigeration System With Two-Stage Compression Didactic Equipment Vocational Training Equipment Refrigeration Training Equipment
Description
ET 430 Refrigeration System With Two-Stage Compression Didactic Equipment Vocational Training Equipment Refrigeration Training Equipment

Low temperature refrigeration system; compression with injection intercooler and additional refrigerant supercooling
Features
- compression refrigeration system with two-stage compression to achieve particularly low temperatures
- injection intercooling
- heat exchanger for additional refrigerant supercooling
- real-time representation of the process in the log p-h diagram of the software
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] real-time representation of the process in the log p-h diagram of the software
[8] software for data acquisition via USB under Windows 10
[9] refrigerant R449A, GWP: 1397


Technical data
Low pressure compressor (LP)
- power consumption: 275W at -10/55°C
- refrigeration capacity: 583W at -10/55°C
High pressure compressor (HP)
- power consumption: aprrox. 841W at -25/55°C
- refrigeration capacity: 702W at -25/55°C
Refrigerant
- R449A
- GWP: 1397
- filling volume: 1,29kg
- CO2-equivalent: 1,8t
Measuring ranges
- flow rate: 2...29L/h, 4...40L/h
- pressure: 1x -1...15bar, 2x -1...24bar
- temperature: 8x -75...125°C
- power:
-- 0...562W (heater)
-- 0...750W (LP compressor)
-- 0...2250W (HP compressor)
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase
230V, 60Hz, 3 phases
UL/CSA optional
LxWxH: 1900x790x1900mm
Weight: approx. 283kg