Under water world report

8/8/2019 Under water world report

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Location: Underwater World Langkawi

Duration: 10.30 - 13.00

Date: 29 OCT 2010

OBJECTIVE

To study the system of air conditioning and refrigeration regarding to control the

climate of marine life.

OVERVIEW

Underwater World Langkawi (UWL) is the largest aquarium in Malaysia houses a

large collection of over 4000 aquatic lives. There are more than 500 species of animals

and sea creatures in more than 100 specially designed tanks being exhibited here.Various animals, birds and inhabitants of the sub-Antarctic, Temperate and Tropical

Rainforest regions are also on display here. More than 100 species of seashells from

various parts of the world are grouped together in a unique display.

VISIT ACTIVITIES.

On that particular day, we have arranged to visit the chiller plant system

of Underwater World Langkawi. With the beautiful weather day we managed to

reach destination in scheduled. We have been informed that our visit will be

guided by Mr. Zaki on earlier stage. While waiting for him, we did took some

pictures at the entrance area.

After a few minutes, we start our journey to explore Underwater World

Langkawi system. We start with a simple system to cater 3 different species of

fish in a different tank. This is at the Tropical Rainforest regions. That system is

consist of 4 main components with additional filtration system to filter particle,

UV light to kill germ and bacteria and oxygenizer to provide oxygens. These 3

tanks is control by stand alone system. The reason they did that because each

species need different requirement and to reduce the risk of lost.

This is the view of pump in the system for tropical

region.


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This is the filtrations tank use to filter sea water

that been directly taken from the sea.

Then, we proceed to temperate region area of low temperature species

which is sea lion and penguins. Here is our main priorities, since all of us were

very interested in how they managing the climate of these special species. Each

species has different requirement surrounding and all of this is using stand alone

system which is not depending on a single system. All of the specifications are asfollows:

SpeciesAir

Temperature

(C)

Watertemperature

(C)

RelativeHumidity

(RH)%

Sea lion(southern furseals)

22 20 56

African penguin 22 20 50Rock hopper penguin 20 17 50

For the penguin and sea lion tank, there is temperature and RH sensor to make

sure the right temperature and humidity is achieved. The ceiling panel is made

from polyethylene. The view panel is made from

acrylic material. We have been told by En.Zaki

that the cost to set up the display tank is from

RM22000-RM23000.

Temperature and RH sensor

Sea Water Distribution System


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Before the sea water being transferred into the display tank, the water need to

be treated to ensure the health of marine life is in good condition. Firstly, the raw

sea water will be transfer to the filtration system, that consist of filter, oxygenize

and UV light treatment. This will make sure the sea water will be clean from

particles and dangerous bacteria and germ as well. Then the sea water will go

through a protein skimmer bottle. This process will remove the protein inside the

sea water and also amino acids. The removal of the organic compound will make

the sea water can be seen clearly. The sea water will be cool by the chillers at

20C. There is also a plate type heat exchanger that located before the

distribution tank. The sea water will be changed for only 20-30% of the whole

water inside the tank. This will be done

This is the UV light treatment

This is the protein skimmer

The view of distribution

tank after plate type HEX

Air conditioning Distribution System


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From sea water distribution system, we move on to air conditioning

distribution system. They differentiate this system by using different term that is

life support and building system. This system is located outside of the building.

To cater the chilled sea water and AHU, they were using cooling tower as their

heat rejection components.

Chiller Dunham Bush Cooling

Tower King Sun

All of the pictures above are describing the cooling tower plant for themarine life support. Previously, they were using air cooled condenser to reject

heat but as time flies, the components are facing a critical situation as it fins

corrugated due to its location. Sea water is the main reason for the aluminium fin

to corrugate. Instantly, this problem can be avoided by using a certain type of

paint which will prevent this syndrome to appear. Hydrophilip is one of the paint

types that can be used by coating the aluminium fins.


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The picture of corrugated aluminium fins.

The outside view of cooling tower.

The view inside the cooling tower.

After that, we move to building system chiller at the below level. This chiller is to

cater the chilled water supply for the building air conditioning system of UWL.

The chiller is manufactured by Carrier.

The refrigerant used is R-134a. The capacity of chiller is around 90-100

refrigerant tonnes. The chilled water supply is 7C.


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Chiller Plant for building system Piping of thechilled water supply

and chilledwater return.

The control system of the chiller.

We continue our visit to the last section where there is many exotic and verylarge fish at this section like Garoupa, Shark, Eeel, Sting ray, Starfish and so on.

For the smaller tank there is a few species of the marines life need a specifycontrol climate like a sea horse and jelly fish. So the UWL have proposed the useof the small chiller unit system to cater this small type of display view tank.

Small chiller Unit. Sea horse need lowtemperature condition.

CONCLUSION.


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From this visit, we all have managed to learn the system of air conditioning andrefrigeration in specify to control the climate condition of the marines life. Wehave gain knowledge on how the UWL running their sea distribution system aswell. Because the chiller need to run 24 hours the energy that have been used iscostly. Its such a great idea if they could implement new idea to reduce the useof energy such thermal energy storage and so on.

It such an informative visit for us since all of us did not have any workingexperience. We highly appreciate to our lecture Mr. C.K Chang and themaintenance officer, Mr. Zaki for all the guidance and explanation during thisvisit. Thank You Very Much. Merci....Its a memorable , enjoyable, adventurousand not to forget informative journey. (THANK YOU VERY MUCH MR. C.K. CHANGand well all apologize for any offend for the whole exploration.....=) )

Documents

Under water world report