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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
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Read more about cooling tower energy pilot scheme solutions (1 page) |
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Read more about cooling tower registration (1 page) |
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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.
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