Cooling Towers

1.High heat transfer performance with lower back pressure. Condensation occurs inside the tube, while evaporation occurs outside.Heat transfer performance depends on the wet bulb temperature, which is generally 8-14℃ lower than the dry bulb temperature.Single-stage heat exchange. 2. Water conservation. The circulation water is only 1/5 of the...

Fully optimized structure design, double air inlets can effectively prevent the surface of the tube bundle from fouling Softened cooling water circulates in the closed circuit, thereby eliminating the efficiency reduction and system failures caused by floaters, dirt and other matters entering the cooling water system. High fan cylinder exhaust...

Hot process fluid enters the tube bundle from the inlet, and the spray system and fan system are started at the same time. Spray water is evenly sprayed on the surface of the tube bundle and a large amount of the air enters from the air inlet louver at the top of the tower and […]

Advantages of Closed-Circuit Cooling Towers Open cooling towers expose process cooling water to the atmosphere, typically as part of a chiller system loop. Open towers use an efficient, simple, and economical design. All components in an open system must be compatible with the oxygen introduced via the cooling tower. Closed circuit cooling towers...

Advantages of Closed-Circuit Cooling Towers   Open cooling towers expose process cooling water to the atmosphere, typically as part of a chiller system loop. Open towers use an efficient, simple, and economical design. All components in an open system must be compatible with the oxygen introduced via the cooling tower.   Closed circuit...

Combined flow is the use of both a heat exchange coil and fill for heat transfer in a closed-circuit cooling tower. The addition of fill to the traditional closed circuit cooling tower design reduces evaporation in the coil section, reducing the potential for scaling and fouling. BAC’s combined flow closed circuit cooling towers utilize parallel...

12 Principle of Operation,Closed circuit cooling towers operate in a manner similar to open cooling towers, except that the heat load to be rejected is transferred from the process fluid (the fluid being cooled) to the ambient air through a heat exchange coil. The coil serves to isolate the process fluid from the outside air, […]

Effectiveness of Cooling Tower For a given type of cooling tower, a closer (smaller) approach temperature indicates a more effective tower. Selecting a cooling tower with a close approach will supply the cooler water … but the capital cost and energy consumption of the tower will be higher, too. Note that effectiveness refers to the […]

The wet bulb temperature is also the dew point of the ambient air. It is not possible or practical to design a cooling tower that can provide cooling water equal to or lower than prevailing wet bulb temperature of the air. Each tower system must be specifically sized for each geographic area’s prevailing summer wet […]

The Wet bulb temperature (WBT) is a site condition measured by placing a thin film of water on the bulb of a thermometer. A non-wetted thermometer reading provides ‘dry bulb’ temperature (DBT) reading. A comparison of wet and dry bulb readings allows the relative humidity to be determined from a psychometric chart or the air […]

Why Evaporative Cooling The advantages of evaporative cooling stem from several key factors. First, evaporative cooling process use the ambient wet-bulb temperature of the entering air as the heat sink, which is typically 10°F to 30°F lower than the dry bulb, depending on the local climate. The lower the temperature of the heat sink, the...

All cooling towers operate on the principle of removing heat from water by evaporating a small portion of the water that is recirculated through the unit. The heat that is removed is called the latent heat of vaporization. Each one pound of water that is evaporated removes approximately 1,050BTU’s in the form of latent heat. […]

An evaporative cooling tower is a heat exchanger that transfers heat from circulating water to the atmosphere. Warm water from the heat source is pumped to the top of the tower and will than flow down through plastic or wooden shells. As it falls downward across baffles, the water is broken into small droplets. Simultaneously, […]

Dry cooling towers operate by heat transmission through a surface that divides the working fluid from ambient air. These rely mainly on convection heat transfer to reject heat from the working fluid, rather than evaporation. The cooling takes place through air-cooled exchangers similar to radiators

Two basic types of water cooling processes are commonly used. One transfers the heat from warmer water to cooler air mainly by an evaporation heat-transfer process and is known as the evaporative or wet cooling. These are also termed as open systems. The other transfers the heat from warmer water to cooler air by a […]

Cooling tower is generally designed for the average hourly wet bulb temperature (WBT) during summer at the place, where it is going to be used. Induced draught counter flow CT with splash fill is chosen after considering the relevant merits of various types. The CT characteristic and height are computed from empirical relationships. The fill...

Cooling towers are widely used to dissipate process waste heat into the atmosphere. The interaction of water and air in cooling tower may be counter or cross current. In counter – flow cooling towers, heat and mass transfer takes place between a falling liquid film and the air stream moving counter currently. Film type fills […]