The film type of fill is the more efficient and provides same heat transfer in a smaller volume than the splash fill. Cold water basin: The cold water basin, located at or near the bottom of the tower, receives the cooled water that flows down through the tower and fill.
How do I choose a cooling tower?
First the cooling tower NOMINAL load must be determined: Nominal Load = GPM x 500 x ° Range , = GPM x ° Range; therefore, 15,000 BTU/Hr 30. Nominal Load = 300 gpm x 20° Range = 200 cooling tons required.
Which type of cooling tower is best?
their design flexibility and cost effectiveness, make mechanical draft cooling towers ideally suited to most cooling duties and plant requirements. Unlike natural draft cooling towers, these towers use fans to circulate air through the tower. Propeller fans and centrifugal fans are most often used.
What is the most commonly used cooling tower?
Mechanicaldraft cooling towers are the most widely used in buildings and rely on power-driven fans to draw or force the air through the tower. They are normally located outside the building. The two most common types of mechanical draft towers to the HVAC industry are induced draft and forced draft.
What are the different type of cooling tower?
There are three main types of cooling towers that are defined by how water or air pass through them. These types include crossflow, counterflow, and hyperbolic . There are also two varieties classified solely on airflow, known as induced draft and passive draft cooling towers.
What is the function of cooling tower?
Cooling towers are primarily used for heating, ventilation, and air conditioning (HVAC) and industrial purposes. Cooling towers provide a cost-effective and energy efficient operation of systems in need of cooling . More than 1,500 industrial facilities use large quantities of water to cool their plants 2 .
How do you calculate TR on a cooling tower?
Multiply 500 times the water flow rate, times the temperature difference, divided by 12,000 or 500 x q x dt/12,000. The result is the tons of capacity of the cooling tower.
What is cooling tower capacity?
The cooling tower’s capacity is the product of the mass flow rate of water, specific heat, and temperature difference . This can also be expressed as heat rejected in kCal/hr (Btu/h). Evaporation loss. This is the amount of water that is evaporated during the cooling process.
What is the meaning of TR in cooling tower?
Ton of Refrigeration (TR): Ton of Refrigeration (abbreviated as TR) is an important historical unit of refrigeration capacity. Originally 1 TR was defined as the rate of heat transfer required to make 1 short ton (2000 lbs) of ice per day from water at 0 o C.
What is counter flow cooling tower?
In a crossflow tower, air travels horizontally across the direction of the falling water whereas in a counterflow tower air travels in the opposite direction (counter) to the direction of the falling water.
What are examples of cooling systems?
- Central Air Conditioners and Heat Pumps. Central air conditioners and heat pumps are designed to cool the entire house. ...
- Room Air Conditioners. ...
- Evaporative Coolers. ...
- Ductless Mini-Split Air Conditioners. ...
- State of the Art Cooling.
What are the two types of cooling systems?
There are two types of cooling systems: (i) Air cooling system and (ii) Water-cooling system . In this type of cooling system, the heat, which is conducted to the outer parts of the engine, is radiated and conducted away by the stream of air, which is obtained from the atmosphere.
What are the safe methods of cooling food?
- Ice-water bath and frequently stirring the food. ...
- Ice paddles (plastic container filled with water and frozen) used to stir food in an ice-water bath.
- Adding ice as an ingredient (if water is an ingredient).
- Blast or tumble chiller.
What are three main classifications of cooling towers types?
There are three primary ways to classify a cooling tower — manufacture type, draft type, and air/water contact .
What is the process of cooling tower?
Cooling tower systems work by using water to extract waste heat from a system and ejecting it into the atmosphere primarily through evaporation . ... The water is then distributed over the top of the cooling tower where air travels past the warm water causing a portion of the water to evaporate.
What is use of cooling tower Mcq?
Cooling tower is used to: Cool the hot water coming from the condenser . Freeze the water . Increase the pressure of water .
