Cooling Tower

Cooling Tower is a kind of Heat-Exchangers to cool down heat medium such as water by contacting it to the atmosphere directly or indirectly.
We have been making progress as a leading company in the air-conditioning field since we granted our first patent for axial flow type Cooling Tower.
In addition to the Cooling Tower for air-conditioning application(overwhelming market share domestically), we have been supplying large-scale Cooling Tower for Industrial use to many plant facilities.
We also focus on the product development corresponding to the customer’s need with Low Noise,Energy Saving & Plume-Abatement type. Our effort to consider the requirement has come to good as follows:
ISO 9001 certification in 1998.ISO 14001 certification in 2001.

The feature of a Kuken Cooling Tower

Save time for total construction schedule with Unit-Shipment

In order to minimize the time for site-erection, Kuken Cooling Tower is delivered in a semi-assembled form.
It also helps reduce the waste material used for packing dramatically.
But conventional Complete Knock-down Shipment is also available if requested.

Variety of Cooling Tower adapted to environment

To cope with requirement at site, following three types are available :

Low Noise type
Super Low Noise type
Energy-Saving & super-low noise type

If further noise reduction is requested, tower adopting Aero Foil Fan(patent pending, design patent granted) is the ultimate solution.

An Open type cools down the circulation water by contacting it to the atmosphere directly maximizing latent heat effect.
Compared to a Closed type, an Open Type features high-efficiency, compact in size, easier maintenance, and lower initial cost.

Development applying new technology brings high-efficiency

– Tower becomes compact in size thanks to the newly developed Filling and Fan Unit.
– Newly developed Filling minimizes drift-loss rate.
– Further noise reduction can be expected due to performance of Newly developed Fan Unit.
– More durable in consequence of adopting the most appropreate metal parts with additional galvanizing.

Maintenance made simple

Inclined Lower Basin with Inspection Board, Internal Piping made maintenance & cleaning work simple.

Closed type Cooling Tower

Closed type Cooling Tower differs from an Open type in the sense that circulating water runs only inside a totally enclosed copper tube and it never contacts ambient air. Due to this fact, water quality control made simple.


High Protectability

Polluted air sucked into the tower, scale and slime generated by over-concentration and poor quality of water are attributed to be the cause of mechanical trouble.
It is not only the problem for cooling tower but also for the related equipments used in the whole system.
With Closed type cooling tower, whole cooling system is totally protected against water-related trouble.

Reasonable Total Cost

* Save expense for circulating water : no refill nor replenishing of circ. water required.
* Save total maintenance & cleaning cost for entire cooling system including chiller & piping.

Closed Circuit Cooling Towers

Closed circuit cooling towers keep the process fluid clean and contaminant free in a closed loop. This creates two separate fluid circuits: (1) an external circuit, in which spray water circulates over the coil and mixes with the outside air, and (2) an internal circuit, in which the process fluid to be cooled circulates inside the coil.  During operation, heat is transferred from the warm fluid in the coil to the spray water, and then to the atmosphere as a portion of the water evaporates. In addition to chiller applications and industrial process cooling, closed circuit cooling towers are often used in heat pump loops, where closed loop cooling is preferred. KUKEN offers three distinct closed circuit cooling tower product lines.

Evaporative Condensers

When applied to HVAC and light industrial systems, evaporative condensers provide lower condensing temperatures and compressor horsepower savings of up to 15 percent compared with traditional systems. In an evaporative condenser, refrigerant vapor is condensed in a coil, which is continually wetted on the outside by a recirculating water system. Air is circulated over the coil, causing a small portion of the recirculating water to evaporate. The evaporation removes heat from the vapor in the coil, causing it to condense. KUKEN offers three distinct evaporative condenser product lines.

Ice Thermal Storage

Cooling with ice thermal storage can be a cost-effective, reliable system approach to cooling offices, schools, hospitals, malls and other buildings, and provides a steady source of low temperature fluids for process cooling applications. These systems are environmentally friendly because they help lower energy consumption and reduce greenhouse gas emissions. With thousands of successful installations worldwide, Kuken is the global leader in the application of ice thermal storage.

Hyper Flat Drive System

The Flat Belt is constructed of rubber which has already been used in the automotive field for many year.

Product advantages

An operation with ideal tension and improved transmission efficiency leads to energy saving and CO2 reduction. Maintenance free is possible due to the longer service life and tension control by the auto-tensioner. Because of the thin belt construction the flex distortion is very low. Compact layouts are possible because the reverse bending has no influence on the durability.

Meandering control + Auto tension function =Long belt life, free from maintenance at 24,000hours

By installing the automatic tension and the meandering device an autonomous control system for the flat belt and pulley is realized. Through these two items a maintenance free system is created. The tension pulley is fixed in Point A (Pivot Point) and the requested tension a adjustment can be done by the elongated hole in Point B. After the positions A and B are fixed, the device can function as a selfcontrol tension and meandering system.

The flat belt only requires one third of height compared to V-belts. The compact belt design offers larger wrap-around angles and equal or lower pre-tension, which offers high performance power transmission.

Reduce friction compare than V-belt Reduce slip sound compare than V-belt