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Cooling Towers (冷卻塔)
BY John Herbert | DIRECTOR
Water Cooled Air Conditioning
Air-conditioning and process systems use equipment called
cooling towers to remove heat from water used to cool a process or a
building.
These 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.
Cooling tower pilot scheme
In June 2000 a co-operative effort between various government departments introduced the fresh water energy conservation pilot scheme. Under this scheme, commercial operations may choose to use fresh water for evaporative cooling, typically employing cooling towers for heat rejection.
Cost Savings
Hong Kong air conditioning systems account for more than forty percent (40%) of commercial building energy usage, and up to seventy percent (70%) of the electrical usage.
The total energy cost for water based cooling tower systems are
typically 13-17% lower than the dry type counterparts.
Furthermore, if we considering that the real cost of energy never
diminishes, charges have risen over the last ten years, the long term
outlook for water based cooling, cost savings accrue very quickly.
For example, an air conditioning system with a cooling capacity of
600Kw (approx. 170 tons), converting could save you more than
HK$500,000 per year. And assuming a conservative lifespan, lets say
fifteen years, a cooling tower system would save approximately HK$ 7.5
million.
In addition to the direct cost savings, there are indirect benefits
too, the reduced electrical consumption means lower environmental
emissions at the power station.
Pilot Zones
Over the years since governments pilot scheme initiative was
launched, the scheme has been gradually widened covering
additional districts, the outlying Islands, and Kowloon.
If your non-residential 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 restaurants, etc. may apply too.
At the time of writing, (updated 16 May 2005) the pilot
scheme has been extended until May 2006. If you interested to find out
more, call Kelcroft today and we will check if your building or unit is
eligible.
Troubleshooting Towers
If your cooling tower system is not operating as intended, our
cooling tower management expertise helps owners identify and rectify
cooling tower problems
click here to read
more
Downloads
 | Read more about cooling tower energy pilot scheme solutions (1 page) |
| | Read more about cooling tower registration (1 page) |
| | View the pilot scheme application process (1 page) |
Interested?
If you are considering a new or replacement air conditioning
chiller, or need new cooling towers call the cooling tower experts
today - we have the skill, expertise and experience to design, manage
and execute the entire process.
Call today
Our Hong Kong office telephone: +(852) 2335 9830, send us a fax +(852) 2335 9862, or send us an email message