Desiccant-assisted humidity control for air refrigeration cycles

作者：Nobrega C E L; Sphaier L A^*

来源：International Journal of Refrigeration, 2013, 36(4): 1183-1190.

DOI：10.1016/j.ijrefrig.2013.01.003

• Desiccant dehumidification
• Evaporative cooling
• Air-conditioning
• Thermal design
• Hybrid cycle

A desiccant-assisted Brayton cooling cycle as an option for controlling humidity in air refrigeration cycles has been proposed. The modified cycle integrates a desiccant cooling cycle into an ordinary reversed Brayton cycle, using the heat rejection from the Brayton portion to drive the desiccant cooling portion, by applying a heat exchanger between the two cycles. Conversely, the cooling effect produced by the desiccant cycle is used to precool the Brayton air stream, before it is admitted to the turbine. A mathematical model for the proposed cycle is developed, and its dynamic behavior is computationally simulated. The results show that the desiccant-assisted cycle can provide an effective humidity control, in addition to augmenting the cooling capacity of the cycle.

• 出版日期2013-6