A batch type rice hull gasifier stove was developed in April 1991 by Engr. Alexis Belonio under Central Philippine University in Iloilo for use by families in rural areas. The stove consists of a double-core down-draft type reactor were rice hull is gasifier, a burner were gas is burned to provide heat for cooking, a blower which is driven by a 95 W electric motor to suck the gas from the reactor and a chimney to divert undesirable gases during operation. The unit can be operated to provide heat for 1 hour operation. It can boil 1.5 liters of water within 10 - 34 mins and can cook 1 kg of rice in 16-22 mins. Performance evaluation showed that the stove have a gasification rate of 95 - 143 kg/m2-h and a thermal efficiency of 10%. The stove can be locally fabricated at a cost of US$ 54 (P1,500.00). And can be operated at a cost of P0.98/h (about US$ 0.04/h)
Design specification and performance
Reactor:
- Inner core
- diameter (cm) 15
- length (cm) 65
- Outer core
- diameter (cm) 20
- length (cm) 70
- Grate type Tilted
- Blower
- Diameter (cm) 15
- Width (cm) 5
- Power requirement (W) 90
- Burner type LPG
- Operating time/batch 1 hour
- Gasification rate 95 - 143 kg/m2-h
- Thermal efficiency 10 %
No comments:
Post a Comment