Page 30 - fish_farms_curriculum

LEARNING ACTIVITY-3

AIM

 You will learn the use of geothermal resources in aquaculture.

RESEARCH

 Research use of geothermal resources in aquaculture.

2. Use of Geothermal Resources in Aquaculture

There are two options for transferring heat energy to the fishponds, a closed system using heat
exchangers and a direct water supply to the fishpond. In the closed system, geothermal water

is used to heat the fish pond through the heat exchanger.

A heat exchanger allows the flow of thermal energy between two or more streams of water at
different temperatures. In conventional heat exchangers, one stream recovers some of the heat

of the other stream and heat transfer takes place through a separation layer.

When direct geothermal water supply is used for system heating, the water is also used to
remove organic matter from the pool that contributes to the pool's water quality. Water

treatment plants typically include high-pressure pumps, a chlorine injection system (or other
form of disinfection), and an automatic filtration system.

When using a direct geothermal water supply system, heat transfer is carried out by direct

contact of cold and hot water. Depending on the type grown, mixing is continued until the
desired temperature is reached. Water temperatures between 13-30˚C offer fish farms the

opportunity to use a cheap and clean energy source.

Fish farming and aquaculture are possible with geothermal resources and fluids. Fish farming
is performed at low temperatures (30˚C) aquaculture (Shrimp, Sea bass-yellow bass, Sea

bream, Tilapia (bream type), Catfish, Carp, Catfish, Oyster, etc.).

Geothermal heating allows land or sea fishing, which can be performed in summer to be

performed for 12 months and higher yields. Through geothermal aquaculture, a 50% - 100%
increase is achieved in the growth rates of seafood with the appropriate temperature

28