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Cooling Tower Energy Management

John A. 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 other
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 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 2016 there are approx. 9000 cooling towers in Hong Kong, many operating at low
efficiency or damaged, increasing running costs, cooling towers need
to be properly managed to maintain efficiency and reduce risk of spreading
disease (Legionella).

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.

Cooling Towers and Legionella Risk Management
Of course, we cannot forget that cooling towers are a known
source for Legionella, operating in the sweet spot for bacteria
growth that causes Legionnaires' disease, so measures must be
enforced to mitigate the health and safety risk.
There is a strong link between cooling towers and Legionella,
around the world some of the most expolsive Legionella outbreaks
were traced back to cooling towers, so it is important to
manage the risk.
Also we know from experience that cooling towers in Hong Kong
have been installed incorrectly, are not properly integrated
into the control strategy to operate at peak efficiency and
risk spreading legionella into the community.

HKSAR Government (EMSD) requires an independent
annual audit of all cooling tower installations to assess the
risk in accordance with EMSD cooling tower code Part 2. Order your
cooling tower audit today!