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ET 480: Electrically Heated Absorption Refrigeration Unit

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Electrically Heated Absorption Refrigeration Unit

Electrically Heated Absorption Refrigeration Unit

Product Details


Technical Description
Unlike mechanically driven compression refrigeration systems, absorption systems use thermal energy directly. There are three circuits in the system: a water circuit, an ammonia circuit and a hydrogen circuit. The system comprises a generator, a condenser, an evaporator with a downstream gas heat exchanger, an absorber and a liquid heat exchanger. A cooling load can be simulated at the evaporator using an electrical heater.

Learning Objectives / Experiments
· Principle of operation of an absorption refrigeration system with electrical heater
· Familiarisation with the individual components in such a unit
· Demonstration of the refrigeration process
· Temperature measurement at relevant points in the system

Features
Simple demonstration model of an absorption refrigeration unit
Adjustable heater as cooling load
Display of the power consumption of the heating element
Specification
[1] Demonstration model of an absorption refrigeration unit
[2] Ammonia/water mixture as working medium, hydrogen as auxiliary gas
[3] Electric heater as heat source
[4] Electric heater as cooling load, adjustable
[5] Temperature measurements using bimetallic dial thermometers
[6] Display and control panel with display to indicated both heater powers (with selection switch)
[7] Vapour bubble pump / heater insulated
[8] 230V, 50Hz, 1 phase
[9] l x w x h: 750x400x600mm, 40kg

Technical Data
Absorption unit 527x180x482mm
Charge: ammonia / water mixture
Auxiliary gas: hydrogen
Heat source: electric heater 125W
Heater (cooling load): 65W, adjustable
Thermometers
1x -20...40°C
2x 0...60°C
1x 0...200°C

Dimensions and Weight
l x w x h : 750 x 400 x 600 mm
Weight : approx. 40 kg

Connections
230V, 50Hz, 1 phase

Scope of Delivery
1 refrigeration system, complete, 1 instruction manual

Order Details
061.48000 ET 480 Electrically Heated Absorption Refrigeration Unit
Alternative products
ET 101 -- Basic Heat Pump Demonstrator
ET 415 -- Basic Refrigeration System
ET 482 -- Gas Heated Absorption Refrigeration Unit

SELKA GmbH, Hamburg
Grindelallee 188, 20144 Hamburg / Germany
Tel.: + 49 (0) 40 343453 |  Fax: +49 (0) 40 63657075
E-Mail:
info@selkagmbh.com   |  Internet: http://www.selkagmbh.com

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