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Electrolux refrigerator: identify the absorption system type. This domestic absorption refrigerator uses ammonia–water–hydrogen. Complete the classification of the system used.

Difficulty: Easy

single-fluid absorption system
two-fluid absorption system
three-fluid (diffusion) absorption system
vapour-compression refrigeration system

Correct Answer: three-fluid (diffusion) absorption system

Explanation:

Concept/Approach
The Electrolux (Platen–Munters) refrigerator is a three-fluid absorption system: ammonia (refrigerant), water (absorbent), and hydrogen (inert gas to reduce condenser/evaporator partial pressures). The process uses heat as the driving input.

Final Answer
three-fluid (diffusion) absorption system.

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