Cogeneration can improve energy utilization efficiency significantly. In this paper, a new ammonia-water system is proposed for the cogeneration of refrigeration and power. The plant operates in a parallel combined cycle mode with an ammonia-water Rankine cycle and an ammonia refrigeration cycle, interconnected by absorption, separation, and heat transfer processes. The performance was evaluate...

Stephan Bachmann, Danfoss Refrigeration & Air Conditioning, Offenbach Lately we have received a lot of customer questions about using electronic expansion valves, so the eighth instalment of Fitters Notes is entirely dedicated to this topic. Optimal evaporator filling (even with large load variations), flexible MOP points, and using the highest possible evaporating temperature in order to incre...

An adsorption refrigeration system can be driven by low grade heat and uses natural refrigerant with the advantage of reducing greenhouse gases emission. However, one weaknesses is its efficiency more importantly high cost. The recovery internal waste becomes therefore very important in order to improve coefficient performance (COP). Analysis based on pinch technology helpful optimal operation....