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Products | Thermodynamics, Heating and Sanitary Systems | Refrigeration and Air Conditioning | ET 102

ET 102

Heat Pump Training System / PC

Technical Description

The heat pump extracts heat from the ambient air and uses it to heat a water circuit. Components clearly laid out on a panel provide a good overview of the principle of operation. Commercially available components are used such as a hermetic compressor, a finned tube evaporator and a water-cooled coaxial condenser. All important temperatures for the refrigerant and water circuits, pressures and the compressor electrical power are indicated digitally. The measured values can be further processed on a PC. A PC data acquisition card and the corresponding are supplied. The system is mounted on a steel tube frame with castors so it can be easily moved to seminar rooms and lecture theatres.
A supply of cooling water is required for continuous use.

Learning Objectives / Experiments

· Familiarisation with the function of a heat pump
· Familiarisation with the main components of a heat
pump
· Measurement of process temperatures and
pressures
· Depiction of thermodynamic cyclic processes
· Determination of efficiency
· Determination of coefficient of performance (COP)

Features

Demonstration model of an air-to-water heat pump
Processing of measured data on a PC
Non-polluting refrigerant
Complete instruction manual, including illustration of fundamental principles

Alternative products

ET 101 -- Basic Heat Pump Demonstrator
ET 103 -- Heat Pump with Pumpdown Control
ET 104 -- Heat Pump with Dual Mode Evaporator
ET 400 -- Refrigeration Training System
ET 405 -- Reverse Cycle Refrigeration Training System

Specification

[1] Mobile functional model of an air-to-water heat pump
[2] l x w x h 1400x550x1850mm, 90kg
[3] PC data acquisition with LabView software under Windows NT/2000/XP
[4] Hermetic piston compressor
[5] Coaxial condenser
[6] Closed hot water circuit with tank and circulating pump, cooling water as load
[7] Evaporator with 2 fans, each fan 29W
[8] Digital displays indicating flow, temperature and pressure
[9] Non-polluting refrigerant R134a
[10] 230V, 50/60Hz, 1 ph. or 120V, 60Hz, 1 ph.

Technical Data

Piston compressor: power consumption: 97W at
-10/32°C, refrigerating capacity: 222W at 5/32°C
Circulating pump, 3 stages, 60W: max. flow rate:
2.9mł/h, max. head: 4m
Coaxial condenser: capacity: 2kW at 45°C condensing temperature, ΔT=7K
Measuring ranges:
- 2x pressure: -1...15bar
- 6x temperature: -40..150°C
- 1x power: 0..600W
- 1x flow rate (water): 3...108ltr/h

Dimensions and Weight

l x w x h : 1400 x 550 x 1850 mm
Weight : approx. 90kg

Connections

230V, 50/60Hz, 1 ph. or 120V, 60Hz, 1 ph.
Cooling water connection

Scope of Delivery

1 unit, fully assembled and filled with refrigerant, 1 data acquisition card with software, 1 instruction manual

Order Details

061.10200 ET 102 Heat Pump Training System / PC