Abstract: The present disclosure includes systems and methods for enhancing evaporation rates of a fluid, such as fluid including dissolved solids (e.g., a wastewater pond). In one example, a system includes a pump configured to pressurize air and an agitation assembly fluidly coupled to the pump, where the agitation assembly is configured to emit an air stream that impacts a top surface of the fluid body to generate droplets.

Abstract: A system for enhancing evaporation from a body of liquid, in which heated or unheated air is distributed through a pipe network that is submerged in the evaporation pond, with the air being injected into the pond to produce air bubbles in the water. The air may be combined with water prior to the injection. The water may be drawn from the pond. The air and/or water may be heated by solar heating, electric heating, fuel burning, or waste heat recovery. In the case of solar heating, any of a transpired solar collector, a packed bed solar collector, a flat plate solar collector, a linear Fresnel collector, a parabolic solar collector, a paraboloid dish solar collector, or other could be used. The pipe network may be maintained at a desired depth below the upper surface of the pond by various means, with one example being flotation devices, from which the pipe network is suspended.

Abstract: A system for enhancing evaporation from a body of liquid, in which heated or unheated air is distributed through a pipe network that is submerged in the evaporation pond, with the air being injected into the pond to produce air bubbles in the water. The air may be combined with water prior to the injection. The water may be drawn from the pond. The air and/or water may be heated by solar heating, electric heating, fuel burning, or waste heat recovery. In the case of solar heating, any of a transpired solar collector, a packed bed solar collector, a flat plate solar collector, a linear Fresnel collector, a parabolic solar collector, a paraboloid dish solar collector, or other could be used. The pipe network may be maintained at a desired depth below the upper surface of the pond by various means, with one example being flotation devices, from which the pipe network is suspended.

Abstract: The heat exchanger includes a fin and tube assembly with increased heat transfer surface area positioned within a hollow chamber of a housing to provide effective heat transfer between a gas flowing within the hollow chamber and a fluid flowing in the fin and tube assembly. A fan is included to force a gas, such as air, to flow through the hollow chamber and through the fin and tube assembly. The fin and tube assembly comprises fluid conduits to direct the fluid through the heat exchanger, to prevent mixing with the gas, and to provide a heat transfer surface or pathway between the fluid and the gas. A heat transfer element is provided in the fin and tube assembly to provide extended heat transfer surfaces for the fluid conduits. The heat transfer element is corrugated to form fins between alternating ridges and grooves that define flow channels for directing the gas flow.