초록 ▼

Apparatus and method comprising a base cooling system using a refrigeration cycle, a peak-shaving system using a secondary cooling liquid, and a regeneration system for the peak-shaving system secondary cooling liquid. A split or partitioned heat exchanger alternately condenses only the refrigerant

Apparatus and method comprising a base cooling system using a refrigeration cycle, a peak-shaving system using a secondary cooling liquid, and a regeneration system for the peak-shaving system secondary cooling liquid. A split or partitioned heat exchanger alternately condenses only the refrigerant in the base cooling system or it condenses that refrigerant and a refrigerant used to cool hot secondary cooling liquid. The apparatus can be used in power generating plants with the split heat exchanger located in a cooling tower.

대표청구항 ▼

A method of cooling a hot fluid stream which comprises: contacting a hot fluid stream in indirect heat exchange with a base cooling fluid so long as the base cooling fluid accepts heat rejected from the hot fluid stream and adequately cools the same, cooling the hot base cooling fluid by passing it

A method of cooling a hot fluid stream which comprises: contacting a hot fluid stream in indirect heat exchange with a base cooling fluid so long as the base cooling fluid accepts heat rejected from the hot fluid stream and adequately cools the same, cooling the hot base cooling fluid by passing it through parallel first and second sections of a cooling tower heat exchanger and then returning it to again accept heat rejected by the hot fluid stream, supplementing the cooling of the hot fluid stream when the base cooling fluid provides inadequate cooling thereof, after being passed through both of said first and second sections of the cooling tower heat exchanger, by contemporaneously also indirectly contacting the hot fluid stream with a secondary cooling liquid which is cold thereby heating the secondary cooling liquid, delivering the hot secondary cooling liquid to a hot reservoir for storage, isolating the flow and subsequent recirculation of base cooling fluid through the cooling tower heat exchanger first section from flow and subsequent recirculation of base cooling fluid through the cooling tower heat exchanger second section, when the hot fluid stream is sufficiently cooled by base cooling fluid itself cooled by passage through only the first section, using the stream of base cooling fluid cooled by passing it through the second section of the cooling tower to cool hot secondary cooling liquid removed from the hot reservoir, delivering the cold secondary cooling liquid to a cold reservoir for storage, and withdrawing cold secondary cooling liquid from the cold reservoir and again delivering it into indirect heat exchange with the hot fluid stream when the base cooling fluid provides inadequate cooling.