“DESIGN AND FABRICATION OF PHILLIPINO GASIFIER”

GROUP MEMBERS:

BHASKAR DAHAL

GAURAV ADHIKARI

NEERAJ SINGH

SANJAY CHETTRI

UNDER SUPERVISION OF:SOMA SEKHARA ADIGAPRATISTHIT LAL SHRESTHA

OBJECTIVE

To design and fabricate a Phillipino Gasifier that can be useful for a nuclear family.

Introduction

* Gasifier: It is a device that produces

gases from the organic materials by the chemical action called Pyrolysis.

* Pyrolysis: It is a chemical action that takes

place in the absence of oxygen, thus breaking the chemical components of the organic materials into hydrogen and carbon- monoxide.

HISTORY OF GASIFICATION:

* In 1669 Thomas Shirley Conducted Crude Experiments with CarbonatedHydrogen.* In 1788 Robert Gardner Obtained the First Patent with Regard toGasification.* In 1861 Real Breakthrough in Technology with introduction of Siemens Gasifier. ThisGasifier is Considered to be the First Successful Unit.

Design and Process of working of Gasifier

• Design of Gasifier depends upon type of fuel used and whether Gasifier is portable or stationary.

• Gasifiers are classified according to how the air blast is introduced in the fuel column.

• Phillipino Gasifier is originally developed model in Philippines and it is an updraft Gasifier.

• This Gasifier has 3 main units:

- A combustion unit from where the heat is supplied.

- A Pyrolysis unit where the chemical action takes place.

- Hood, which is an outlet for gas and here oxygen mixes with hydrogen thus combustion can be achieved.

Picture of Phillipino Gasifier and it’s components.

2D view of Phillipino Gasifier.

3D view of Phillipino Gasifier

Hood

Pyrolysis chamber

Burning chamber

Feed hole

USES OF GASIFIER:

Gasifier can be used as cooking stove and for other domestic purposes.

Gasifier can be used as fuel source for internal combustion engines.

Gasifier can be used in industries as a combustion unit.

Work accomplished

Study on history of gasification and types of Gasifier.

Advantages and drawbacks of each type. Fuel and characteristics. 2D and 3D design of prototype of

Phillipino Gasifier.

Work remaining

Fabrication of Phillipino Gasifier. Testing with different types of fuel,

efficiency of Gasifier and fabrication of a new model with modification. (To be done in next semester)

Gantt Chart

Cost Estimation:

This semester we have estimated the fabrication cost to be Rs.3500.

Problems Encountered:

In dimensioning. In choosing the appropriate model to

work out with.

Conclusion

In country like Nepal the technology of gasification can be very fruitful.

Gasifier can be fabricated in different models and sizes according to need and demand.

Use of Gasifier can help in protection of forest, also helps to encounter the upcoming energy crisis.

Use of Gasifier can help to maintain healthy domestic environment.

WE WOULD LIKE TO THANK:

•Center for rural technology Nepal (CRTN) and it’s members for providing information.•Mr. Pratistith Lal Shrestha, our supervisor for his precious help and support.

Some pictures of different models from visit to CRTN.

ANY QUESTIONS???

THANK YOU