Development of energy efficient hybrid evaporator system

The project will develop a new evaporator system focused on ammonia, which combines a flooded with a direct expansion (DX) system. The excellent properties of both systems are combined and at the same time the disadvantages of the two systems are virtually avoided. Work is undertaken to optimize the relationship between the flow and evaporation of the re­frigerant, the amount of refrigerant and pressure conditions. Optimizing the efficiency is done both at full and part load. By combining the two types of plant systems and together with optimization it is expected to achieve an improvement in energy efficiency compared to today's practice up to 30%. In addi­tion, it is expected that the concept can reduce the cost of industrial refrigeration plants with up to 25%.
Because of the reduced overheating and thus good efficiency as well as the Low Charge sys­tem it is expected that the concept will also be suitable for the market on commercial plants.