Explain Different Types of Draft Tubes

1 Continuous Stirred Tank Bioreactors 2 Bubble Column Bioreactors 3 Airlift Bioreactors 4 Fluidized Bed Bioreactors 5 Packed Bed Bioreactors and 6 Photo-Bioreactors. Conical Diffuser Draft Tube-.

Draft Tube Definition Types Function Advantages Application With Pdf

In this type of draft tube the shape of the tube is elbow and the cross section area remains.

. Conical diffuser or straight divergent tube -This type of draft tube consists of a conical diffuser with half angle. Moody spreading draft tube iv. Classification methods include the momentum exchange method between the fluid and the turbine fluid flow path through the turbine hydraulic range of the turbine activity.

Types of Draft Tubes Conical Draft tube. Elbow with the varying cross-section. To decrease the velocity of water the width of the draft tube is gradually increased.

There are 4 types of draft tube. The carburetor is the most important part of the fuel system of spark ignition engines. It is fitted at the runner exit to tail race.

This type of draft tube has a shape similar to the shape of a frustum of a cone. Elbow draft tube with circular cross-section at inlet and rectangular at outlet 1 Conical Draft Tubes This is known as a tapered draft tube and used in all reaction turbines where conditions permit. The primary function of the draft tube is to reduce the velocity of the discharged water to minimize the loss of kinetic energy at the outlet.

Moody Spreading Draft Tube. There are several ways to explain the types of turbines. Generally used when turbine has to be.

The simple elbow draft tube is bent with the inlet. Moody spreading draft tube. There are mainly 4 types of draft tubes and those are Conical draft tubes.

In this type of draft. In order to explain the mechanism of the synchronous pressure surge which corresponds to violent pressure fluctuation observed in the elbow type draft tube at half power load of a. Moody Spreading Draft Tube.

Conical Diffuser Draft Tube. Natural Draft Cooling Tower. 1 Bare tube evaporators 2 Plate type of evaporators 3 Finned evaporators and 4 Shell and Tube type of evaporators.

Elbow Draft Tube with Varying Cross Section. A draft tube connects the turbine outlet turbine discharge to the tailrace. Conical draft tube ii.

Types of Draft Tube. This draft tube is fabricated with mild steel plates. Simple elbow type draft Tube -It consists of an extended elbow type tube.

The gates are provided at the end of a draft tube which is closed at the time of maintenance. On this channel you can get education and knowledge for general issues and topics. Simple elbow draft tube.

Draft tube is a pipe with gradually increase in cross sectional area. It is made up of cast steel plate steel or may be of concrete. It is mostly used.

The main important point is that the Draft tube is used only in the Reaction turbine. Types of Draft Tube. Open Belt Drive And Cross Belt Drive Difference Between Open Belt Drive And Cross Belt Drive 1.

Shell and tube condensers. One end of the draft tube is connected to the runner outlet and the other end is submerged below the level of water in the tail-race. Tube-in-tube or double tube condensers Shell and coil condensers and.

Types of draft tube. 1Simple Elbow Draft Tube. Q12 Explain the different types of draft tubes.

In this type of draft tube the flow path is straight and divergent. The six types are. Types of draft tube -1 Conical diffuser draft tube 2 Simple Elbow Draft Tube 3 Elbow draft tube with varying cross section 4 Moody Spreading Draft Tube 1 Conical Diffuser Draft Tube.

Efficiency of Draft Tube The efficiency of a draft tube will be defined as the ratio of actual conversion of kinetic head into pressure head in the draft tube to the kinetic head available at the inlet of draft tube. Natural draft cooling towers use very large concrete chimneys to introduce air through the media. The carburetor is attached.

Let us discuss each of them in detail. Draft tube must be air tight in all conditions and the lower part of the draft tube must. Based on their construction the various types of evaporators are.

Draft tubes are mainly classified into four types and those are. The bare tube evaporators are made up of copper tubing or steel pipes. Elbow Draft Tube with Varying Cross Section.

Simple Elbow Draft tube. A carburetor is a device for atomizing and vaporizing the fuel and mixing it with the air in varying proportions to suit the changing condition of spark ignition enginesThe air-fuel mixture so obtained from the carburetor known as the combustible mixture. In the plate type of evaporators the coil usually made up of copper or aluminum is embedded in the plate.

In the case of the reaction turbine the draft tube is a necessary component. Out of above types of draft tubes Conical draft tubes and Moody spreading draft tubes are most efficient. Different types of turbines are developed to extract mechanical energy from hydraulic energy to generate electricity.

Types of draft tube 1. Draft tube is used to convert the kinetic energy into pressure energy in order to increase the efficiency of the turbine. Tube-in-tube or double tube condenser- This type of condenser consists of a water tube inside a large refrigerant tube and the hot.

It has an increasing circular cross-section. Simple elbow draft tube iii. Simple Elbow Draft Tube.

Elbow draft tube with rectangular. It is an improvement of simple elbow draft tube. Conical Diffuser or Divergent Draft Tube.

Q13 Explain the cavitations. Moody Spreading Draft Tube. Simple Elbow Draft Tube.

Warm moist air naturally rises due to the density difference compared to outside air which is cool dry.

Hydraulic Turbines Module Iii Ppt Download