Finned Tube Heat Exchanger Archives - UNITED HEAT EXCHANGER

Jun 28
0

Water Cooling Tower

By | Cooling Tower | No Comments

Water Cooling Tower – Cooling Water Systems are an essential part of process operations for many industries and public buildings. There are four problems commonly associated with water systems; corrosion, scale, fouling and microbiological contamination.

Clearwater products have been specifically designed to optimise system performance, cleanliness and heat exchange efficiency. Clearwater is the acknowledged leader in stable halogen treatment technology.

Regulatory requirements (ACOP L8) specify that cooling towers need to be controlled in order to prevent the proliferation of legionella bacteria. Legionnaires disease has become a major health and safety issue. Clearwater have the knowledge and experience to ensure that our clients comply with Government legislation

Water Cooling Tower

Jun 28
0

Natural Draft Cooling Tower

By | Cooling Tower | No Comments

“Natural Draft Cooling Tower” Natural contacts ambient air rising up through the tower either by forced draft using large fans in the tower. Natural draft is utilizes a tall chimney. Warm, moist air naturally rises due to the density differential compared to the dry, cooler outside air. Warm moist air is less dense than drier air at the same pressure.

This moist air buoyancy produces an upwards, current of air through the tower.Natural that appears like a natural draft setup, though airflow is assisted by a fan.This association is misleading, as the same kind of cooling towers are often used at large coal-fired power plants as well. Conversely, not all nuclear power plants have cooling towers, and some instead cool their heat exchangers with lake, river or ocean water.

The heat required to evaporate the water is derived from the water itself, which cools the water back to the original basin water temperature and the water is then ready to recirculate. Natural cooling towers have become the design standard for all natural-draft cooling towers because of their structural strength and minimum usage of material. The hyperboloid shape also aids in accelerating the upward convective air flow, improving cooling efficiency. These designs are popularly associated with nuclear power plants. That contact causes a small amount of the water to be lost as windage (W) and some of the water to evaporate.

Natural Draft Cooling Tower

Jun 27
0
Finned Tube Heat Exchanger Manufacturers

Finned Tube Heat Exchangers

By | Heat Exchanger | No Comments
Finned Tube Heat Exchangers

Finned Tube Heat Exchanger

Finned Tube Heat Exchangers is a type of heat exchanger design that uses plates and finned chambers to transfer heat between fluids. It is often categorized as a compact heat exchanger to emphasise its relatively high heat transfer surface area to volume ratio. The plate-fin heat exchanger is widely used in many industries, including the aerospace industry for its compact size and lightweight properties, as well as in cryogenics where its ability to facilitate heat transfer with small temperature differences is utilized.

A high degree of flexibility is present in plate-fin heat exchanger design as they can operate with any combination of gas, liquid, and two-phase fluids. Heat transfer between multiple process streams is also accommodated,

 

Finned Tube Heat Exchanger Mnufacturer

Finned Tube Heat Exchanger

The main four type of fins are: plain, which refer to simple straight-finned triangular or rectangular designs; herringbone, where the fins are placed sideways to provide a zig-zag path; and serrated and perforated which refer to cuts and perforations in the fins to augment flow distribution and improve heat transfer.

ATU Cooler Finned Heat Exchanger

ATU Cooler Finned

Specifications :

  • Originally conceived by an Italian mechanic, Paolo Fruncillo.
  • A plate-fin heat exchanger is made of layers of corrugated sheets separated by flat metal plates, typically aluminium, to create a series of finned chambers.
  • Separate hot and cold fluid streams flow through alternating layers of the heat exchanger and are enclosed at the edges by side bars.
  • Heat is transferred from one stream through the fin interface to the separator plate and through the next set of fins into the adjacent fluid.
  • The fins also serve to increase the structural integrity of the heat exchanger and allow it to withstand high pressures while providing an extended surface area for heat transfer.

Applications :

  • The cost of Fin heat exchangers is generally higher than conventional heat exchangers due to a higher level of detail required during manufacture.
  • However, these costs can often be outweighed by the cost saving produced by the added heat transfer.
  • Fin heat exchangers are generally applied in industries where the fluids have little chances of fouling.
  • The delicate design as well as the thin channels in the fin heat exchanger make cleaning difficult or impossible.

Advantages :

  • High heat transfer efficiency especially in gas treatment
  • Larger heat transfer area
  • Approximately 5 times lighter in weight than that of shell and tube heat exchanger.
  • Able to withstand high pressure

Finned Tube Heat Exchangers

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