Page 226 - Engine IQflip'21

Absorption chillers – capabilities

Advantages

• Driving power = heat
• Low operating costs
• Electrical energy required:
approx. 1 % of refrigeration capacity Hot Hot water
• Few moving parts single stage
→ Low servicing and maintenance Water COP 0.7 – 0.75
costs
• Increased annual utilisation
ratio of cogeneration plants
• Very good behaviour under part-load
• CFC-free refrigerants Exhaust gas heat
Exhaust COP 1.2 – 1.35
Disadvantages heat only separate use of hot

• Relatively high capital costs water
• Low power density,
large volume of construction
• High recooling capacity

Combined exhaust
Total gas

heat + hot water
COP 1.0 – 1.05

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