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Cooling Tower
Management (冷卻塔管理)
BY John Herbert | Director
Air-conditioning and process systems need to reject unwanted heat
from a process or a building often use cooling towers. Building air
conditioning chillers and injection moulding machines are
common applications.
These evaporative water based systems provide owners with significant benefits over
air-cooled systems, including lower energy costs, smaller size, and lower sound
levels.
Cooling towers use just a small percentage of the total energy used in air cooled systems,
and a well-maintained cooling tower enables the entire cooling
system to perform more reliably and ensures that energy users get the most from
their investment.
In 2000, 32% of the total electricity consumption in Hong Kong was used to
drive air-conditioning [1] converting to water based technology, i.e. cooling
towers offers superior energy advantages, reduces power station air pollution
and helps keep more of your hard earned money in your pocket.
Pilot Zones
Since the launch of the governments cooling tower pilot scheme initiative in 2000, the scheme has been gradually widened covering additional districts, the outlying Islands, and Kowloon.
If your commercial building or unit is within the permitted zone one may
apply. Don't forget, you need not convert an entire building, individual
premises, such as large restaurants may apply too.
Troubleshooting Cooling Towers
Many cooling tower systems do not operating as intended, and consume more energy
than the promised savings indicated - at Kelcroft our unique blend of expertise, identifies
and resolves cooling tower problems.
Many systems use the open direct type cooling towers, possibly due to the lower
first cost, and later run into performance difficulties. Cooling towers In
addition to the primary purpose, cooling condenser water, they are efficient air
cleaners. Air circulated through the tower is scrubbed, removing the dirt and
debris from the air, depositing it into the condenser water. If you have an open
direct type cooling tower, that dirt will collect in the condenser water system,
forming mud's and sludge.
Of course we should not forget that cooling towers are a source of Legionella the causative agent for Legionnaires disease, and measures must be enforced to mitigate the health and safety risk.
Also experience shows that the majority of cooling towers in Hong Kong are installed incorrectly, and are not properly integrated into the control strategy to operate at peak efficiency. The tower itself is only one part of the air conditioning system, the goal to create a reliable energy efficient total system including all the components, chillers, pumps and towers.
Cooling towers require management, they cannot and should not be permitted to
operate without regulation maintenance.
Legionella
Cooling towers management is required to mitigate the associated risk of
Legionella Infection. Click here to read more about
Legionella in the built environment.
Downloads
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Read more about cooling tower energy pilot scheme solutions (1 page, PDF) |
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Read more about government cooling tower registration (1 page, PDF) |
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Chart the pilot scheme application process (1 page, PDF) |
Further Information
For further information regarding Kelcroft's services, call today, our Hong Kong office telephone: +(852) 2335 9830, send us a fax +(852) 2335 9862, or send us an email message