The present disclosure relations to wind mitigation devices which include a deflector that having an inlet and an outlet. An axial fan is disposed above the outlet of the deflector and includes a shroud. The shroud of the axial fan and the outlet of the deflector are aligned along a common vertical axis. The deflector is adapted to receive an airflow at the inlet and direct the airflow through the outlet in a vertical direction toward the axial fan.

The present disclosure relations to wind mitigation devices which include a deflector that having an inlet and an outlet. An axial fan is disposed above the outlet of the deflector and includes a shroud. The shroud of the axial fan and the outlet of the deflector are aligned along a common vertical axis. The deflector is adapted to receive an airflow at the inlet and direct the airflow through the outlet in a vertical direction toward the axial fan.

A fan brake system for controlling an industrial fan system, the fan brake system including a fan brake having a brake pad movable on the fan brake to selectively engage the fan system. An actuator including a motor can be operable to cause the fan brake to perform a braking procedure on the fan system to resist rotational movement of the fan system. A controller can be communicated with the actuator, the controller operable to selectively cause the actuator and the fan brake to perform the braking procedure, wherein the controller is operable to monitor and control power being supplied to the motor of the actuator during the braking procedure to maintain a torque output of the motor according to a predetermined torque profile during the braking procedure.

An environmental control system (ECS) pack is provided including a primary heat exchanger, a secondary heat exchanger, and an air cycle machine. The air cycle machine includes a compressor and a turbine. The compressor is fluidly coupled to an outlet of the primary heat exchanger and to an inlet of the secondary heat exchanger. The outlet of the secondary heat exchanger is fluidly coupled to the turbine. A first conduit connects the outlet of the primary heat exchanger and the inlet of the secondary heat exchanger. The first conduit includes a first valve. A second conduit connects the outlet of the secondary heat exchanger to an air load. The second conduit includes a second valve.

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.

A system for supplying feed water for an evaporator in a water-steam circuit has a condenser for condensing steam to obtain water that can be supplied with steam from a turbine installation. A degasification device for degasing condensate is coupled to the condenser such that a first portion of the condensate of the condenser can be fed to the degasification device. The heat exchanger is coupled to the condenser such that a second portion of the condensate of the condenser can be fed to the heat exchanger, the heat exchanger being coupled to a supply line such that feed water can be fed to the heat exchanger. The heat exchanger is configured such that the feed water can be heated using the second portion of the condensate. The heat exchanger is coupled to the degasification device such that the heated feed water can be fed to the degasification device.

A system for supplying feed water for an evaporator in a water-steam circuit has a condenser for condensing steam to obtain water that can be supplied with steam from a turbine installation. A degasification device for degasing condensate is coupled to the condenser such that a first portion of the condensate of the condenser can be fed to the degasification device. The heat exchanger is coupled to the condenser such that a second portion of the condensate of the condenser can be fed to the heat exchanger, the heat exchanger being coupled to a supply line such that feed water can be fed to the heat exchanger. The heat exchanger is configured such that the feed water can be heated using the second portion of the condensate. The heat exchanger is coupled to the degasification device such that the heated feed water can be fed to the degasification device.

A system and method of heat exchanger freeze protection for an HVAC system by operating an indoor unit assembly and an outdoor unit assembly in a cooling mode and operating a fan at an initial airflow, operating a temperature sensor to measure a temperature value of a heat exchanger, at the expiration of a first predetermined time period, determining whether the temperature value is less than or equal to a first temperature preset value, determining whether a current airflow multiplier is equal to a maximum airflow multiplier limit, increasing the current airflow by an airflow offset multiplier if the current airflow multiplier is less than or equal to the maximum airflow multiplier limit and the temperature value is less than or equal to the first temperature preset, and operating the fan at an increased airflow to move more air across the heat exchanger.

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.