A strong cooling direct air-cooled condenser radiating unit and an air-cooled island are provided, comprises a cooling wall, an air supply device and a flow guide device located in the cooling wall. The air supply device comprises a unit air supply channel, an air supply ring, and an air collecting cavity. The air supply ring is located at the lower part of the cooling wall and is an annular body with a cavity. An annular slit outlet is formed in the lower part of the air supply ring. The upper part of the air collecting cavity communicates with the air supply ring. A separating plate is provided in the unit air supply channel and divides the unit air supply channel into upper and lower air flues. The upper air flue communicates with the cavity of the air supply ring. The lower air flue communicates with the air collecting cavity.

A method and system for heat recovery and/or power plant cooling, incorporating an ejector configured to transfer vapor from a generator to a condenser. The ejector includes a converging-diverging nozzle to create a low pressure zone that entrains a fluid. The ejector is within a cooling fluid cycle line in heat exchange combination with an exhaust flue gas. Two fluid flows of the fluid cycle line are mixed via the ejector into a combined fluid, wherein the ejector adjusts a temperature and/or pressure of the combined fluid. Condensing the combined fluid provides a cooling medium.

A method and system for heat recovery and/or power plant cooling, incorporating an ejector configured to transfer vapor from a generator to a condenser. The ejector includes a converging-diverging nozzle to create a low pressure zone that entrains a fluid. The ejector is within a cooling fluid cycle line in heat exchange combination with an exhaust flue gas. Two fluid flows of the fluid cycle line are mixed via the ejector into a combined fluid, wherein the ejector adjusts a temperature and/or pressure of the combined fluid. Condensing the combined fluid provides a cooling medium.

In a seawater leakage detection device in a feedwater system, a method for detecting seawater leakage in a feedwater system, and a steam turbine plant, an ammonia addition device configured to add ammonia as a pH adjusting agent to feedwater at an upstream side of a high-pressure drum in a feedwater line, an acid electrical conductivity meter configured to measure an acid electrical conductivity of drum water in the high-pressure drum, and a control device configured to control the ammonia addition device such that a pH value of drum water in the heat recovery steam generator expresses alkalinity equal to or greater than a preset predetermined value, calculate a chlorine ion concentration of drum water on the basis of the acid electrical conductivity measured by the acid electrical conductivity meter, and determine whether leakage of seawater is detected are provided.

The disclosed technology includes techniques for improving efficiency of heat transfer devices, specifically condensers. An exemplary embodiment provides a device for condensing vapor bubbles comprising a quantity of liquid, a vapor source, and an acoustic transducer. The vapor source can be configured to introduce a plurality of vapor bubbles in the quantity of liquid. The acoustic transducer can be configured to provide acoustic energy to the quantity of liquid such that at least a portion of the acoustic energy is transferred to the plurality of vapor bubbles causing at least a portion of the plurality of vapor bubbles to condense in the quantity of liquid.

The disclosed technology includes techniques for improving efficiency of heat transfer devices, specifically condensers. An exemplary embodiment provides a device for condensing vapor bubbles comprising a quantity of liquid, a vapor source, and an acoustic transducer. The vapor source can be configured to introduce a plurality of vapor bubbles in the quantity of liquid. The acoustic transducer can be configured to provide acoustic energy to the quantity of liquid such that at least a portion of the acoustic energy is transferred to the plurality of vapor bubbles causing at least a portion of the plurality of vapor bubbles to condense in the quantity of liquid.

The present invention is directed to a load bearing direct-drive system for driving a fan in a cooling system such as a wet-cooling tower, air-cooled heat exchanger, HVAC system, hybrid cooling tower, mechanical tower or chiller system. The present invention includes a variable process control system that is based on the integration of key features and characteristics such as tower thermal performance, fan speed and airflow, motor torque, fan pitch, fan speed, fan aerodynamic properties, and pump flow. The variable process control system processes feedback signals from multiple locations in order to control a high torque, low variable speed, load bearing motor to drive the fan.

The present invention is directed to a load bearing direct-drive system for driving a fan in a cooling system such as a wet-cooling tower, air-cooled heat exchanger, HVAC system, hybrid cooling tower, mechanical tower or chiller system. The present invention includes a variable process control system that is based on the integration of key features and characteristics such as tower thermal performance, fan speed and airflow, motor torque, fan pitch, fan speed, fan aerodynamic properties, and pump flow. The variable process control system processes feedback signals from multiple locations in order to control a high torque, low variable speed, load bearing motor to drive the fan.

HVAC systems and methods for delivering highly efficient heating and cooling using ambient air as the working fluid. A plenum has an upstream inlet and a downstream outlet, each in fluid communication with a target space to be heated or cooled. Ambient air is drawn into the inlet at an incoming pressure and an incoming temperature. The inlet and outlet are gated, respectively, by first and second rotary pumps. A heat exchanger in the plenum transfers heat into or out of the air, provoking a change in air volume within the plenum. The systems and methods are configured to operate essentially between the working temperatures, T.sub.HIGH and T.sub.LOW. This technique, called Convergent Refrigeration or counter-conditioning, provides for the reduction of excess refrigerant lift by optimization of the heat transfer temperature. Two Convergent Refrigeration systems can be arranged back-to-back through a common heat exchanger for ultra-high efficiency operation.

A cool storage system comprising which includes a plurality of heat pipes. Each of the heat pipes has a lower evaporator section, a hybrid evaporator/condensing section, and an upper condensing section. The hybrid evaporator/condensing section positioned between the lower evaporator section and the upper condensing section. Each of the heat pipes contains a selected amount of a heat transfer fluid adapted to transfer heat from the lower evaporator section to the hybrid evaporator/condensing section and the upper condensing section through a vapor/condensation cycle, or the heat transfer fluid is vaporized in the hybrid evaporator and condensed in the upper evaporator section. A thermal storage medium is provided in thermal engagement with the hybrid evaporator/condensing section. A heat source is located in said lower evaporator section, and a cooling source, located in said upper condensing section.