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Paddle wheel aerators are widely used in aquaculture ponds

Update:04-04-2023
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Aquaculture Paddle Wheel Aerator Paddle wheel aerators […]

Aquaculture Paddle Wheel Aerator

Paddle wheel aerators are widely used in aquaculture ponds. They are driven by an electric motor. The rotating paddles create a jet-like water flow on the downstream side of the aerator. These aerators are ideal for shallow waters and are a popular choice among shrimp farmers in Southeast Asia. A typical paddle-wheel aerator has 2 to 10 inch wide paddles. Each paddle is held in place by four tethers. In addition, they are supported by a drum and a float.

The aerator combines novel aeration technology and a traditional waterwheel principle to create a reliable and efficient aeration device. It provides an ecologically friendly environment for breeding and is ideal for a wide range of applications. It is easy to maintain and is a plug and play system, ensuring a high quality of output.

As a result, it is able to achieve a higher oxygen content in the water and promote the growth of aquatic products. The oxygen transfer rate of an aerator is expressed as pounds of oxygen per horsepower. An aerator that can generate a high oxygen transfer rate is known as an effective aerator.

Paddle-wheel aerators can be used in commercial shrimp ponds during the dry season. However, they are not effective in mixing vertical water layers. Because of their lack of vertical circulation, they tend to generate large splashing noises. Although their effect on the surface layer of a pond is significant, they do not mix bottom water layers well.

To determine whether a cost-effective aerator is capable of inducing an effective volumetric flux, we measured the normal water velocity components. We then used the Froude (Fr) criterion to develop simulation equations. Our results show that the water discharge per unit power input is fairly efficient. This means that the optimal volumetric flux induced by a paddle-wheel aerator is approximately 920 m3/hr. Based on the original patent, this is a figure that can be achieved at an operational rotational speed of 160 rpm.

Currently, paddlewheels are produced abroad and imported. For the optimum performance of an aerator, the depth of the paddles should be increased to allow for more energy consumption and a lower SOTR. If this is not possible, the aerator may need to be used in combination with other units to perform in concert.

Several aerator units may be needed to meet the requirements of an aquaculture pond. This will be discussed in more detail later in this document.

An Aquaculture Paddle Wheel Aerator is a key supporting facility in intensive aquaculture pond systems. It can be installed easily around a lake, and it has the capacity to produce a significant amount of oxygen. It is also a relatively energy-efficient aerator. In this study, the TA-55H paddle-wheel aerator was used in a shrimp aquaculture pond.

During the experiment, the velocity field of the TA-55H was recorded at a few grid points and a shallow z of 0.1 m downstream of the aerator. The data obtained were average and variance. At each point, error bars represented the fluctuation of the water current. The velocity field was then compared with the velocity field generated by a standard Taiwanese paddle-wheel aerator.

2HP ~ 3HP 6 impeller paddle wheel aerator

Model

HP

Voltage
(V)

Frequency

Impellers

AMP(A)

Power Efficiency (kg/kw.h)

Aerobic capacity (kg/h)

 

Impeller    Speed (Rpm)

SC-0.75

1

220V-440V

50/60HZ

2

1.2

≥1.25

≥1.1

106

SC-1.5

2

220V-440V

50/60HZ

4

2.5

≥1.25

≥1.9

106

SC-1.5

2

380V -440V

50/60HZ

6

2.8

≥1.5

≥3.8

106

SC-2.2

3

380V-440V

50/60HZ

6

2.8

≥1.5

≥3.8

106

SC-2.2

3

380V-440V

50/60HZ

8

3

≥1.5

≥4.3

106

SC-3.0

4

380V-440V

50/60HZ

10

3

≥1.5

≥5

106

SC-3.0

4

380V-440V

50/60HZ

12

3.2

≥1.5

≥5.5

106

0