07 August 2020

Table of Contents for Powerzone


Energy saver


A Bengaluru based firm has been at the forefront of bringing down cost of power through its biomass products and renewable energy appliances

Airier Natura has a long history of doing business in South India. Established by Raviprakash Bhat in 1987, the organisation has since gone from strength to strength. With an eye on renewable energy and sustainability, in 1998, Jyothi Solar was formed. In less than 2 years Jyothi Solar was a household name in Karnataka, leading the pack in product quality and customer service. The year 2002 saw Airier Natura foray into the wind ventilator business. Wind turbine ventilators, a must-have for all shop floors and industries, require a high degree of quality and workmanship. Airier Natura prides itself on being the leading manufacturer of Wind Turbine Ventilators in India. Having established itself as a quality manufacturer of energy saving appliances, Airier Natura is now focusing its efforts on delivering renewable energy appliances to millions of industries, institutions and organisations across India. Over the last 6 years Airier has also ventured into biomass energy and has already established its footprint in manufacturing biomass pellets, biomass cook stove, eco-geysers. The latest addition to the biomass equipment family is innovative “Biomass Pellet Burners”- a first time in India which saves energy cost from 30 to 40 per cent against conventional fuels like furnace Oil, HSD , LDO , LPG and PNG for various industrial applications.


Airier Biomass Pellet Burner

Airier wood pellet burner is a clean and economical alternative for providing energy for boilers, ovens, coating, heating and drying industries. The burner combines the necessary ingredients for complete combustion—heat, fuel and air—to produce a clean-burning flame to heat the boiler or furnace.

The burner ignites the wood pellets, supplies combustion air and monitors the flame for proper operation. Design features of the burner allow for very high temperature combustion without suffering the effects of corrosion or thermal breakdown. The burner operates on gasification principals to provide for the most compete combustion possible. Primary combustion air gasifies the wood pellets within the burner, then pre-heated secondary combustion air is injected to produce the same heat output as an oil burner.

Airier Wood pellet burner has a intelligent PLC based control system which is fully automatic and controls the proper feeding and air blowing rate. This also have a early warning system which detect any form of malfunctions in the system or empty hopper etc.


The main components of wood pellet burner are:

Combustion chamber, Screw conveyer, Blower, Hopper and Control panel.


Combustion chamber- this is the chamber where the pellets are burned to produce the carbon gas. This chamber has 2 parts – a body above the grate where the pellets are burned and an ash tray for collecting the ash. The pellets are feed into this chamber using the screw conveyer which is connected to the hopper. At the bottom firing area the pellets are fired. From bottom chamber the primary air is provided for combustion. The wood pellets burn and in turn releases carbon gas which at the mouth is again mixed with high pressure secondary air, this reignites the gas thus attaining the complete burning sequence.


Screw conveyer- this is connected to hopper at one end, to chamber that the opening and with a geared motor at the bottom. This helps in feeding the pellets to the combustion chamber for burning. The movement of this conveyer is controlled by the PLC.


Blower- the blower provided the required qty of air for primary combustion and secondary combustion.


Hopper- it acts as store for the pellets to be feed into the system. This is connected to the screw conveyer.


PLC- it is the heart and brain of the system. It helps in controlling all the working parameters of the system like feeding rate, blower rate, temperature etc.


Final commercial energy consumption (in MTOE) in India by sector










1.6 (2.3%)

2.4 (2.6%)

4.9 (3.9%)

8.4 (5.3%)

15.2 (7.9%)

15.1 (6.9%)

23.14 (7.32%)


36.9 (53.7%)

49.2 (53.0%)

62.9 (50.4%)

77.5 (48.6%)

77.4 (40.4%)

96.2 (44.4%)

137.98 (43.62%)


17.4 (25.3%)

21.7 (23.4%)

28 (22.4%)

37.2 (23.4%)

33.5 (17.5%)

36.5 (16.8%)

55.34 (17.5%)

Residential & commercial

5.6 (8.1%)

8.9 (9.6%)

12.6 (10.1%)

15.3 (9.6%)

24.1 (12.6%)

32.6 (15.1%)

43.43 (13.73%)

Other energy uses

1.9 (2.8%)

2.7 (2.9%)

3.9 (3.1%)

6.8 (4.3%)

13.4 (7.0%)

18.7 (8.6%)

30.25 (9.56%)

Non-energy uses

5.3 (7.7%)

7.9 (8.5%)

12.6 (10.9%)

14.1 (8.8%)

28 (14.6%)

17.5 (8.1%)

26.15 (8.27%)


68.7 (100%)

92.8 (100%)

124.9 (100%)

159.3 (100%)

191.6 (100%)

216.6 (100%)

316.29 (100%)

MTOE – million ton of oil equivalent
Note: Figures in parentheses indicate the percentage share of each sector.
Sources: MoC (2011); MoPNG (2010); TERI (Various years)



  • Alloy Melting
  • Direct Heating
  • Hot Air application
  • Glass Melting Industries
  • Steam Generation Using Boilers
  • Ovens
  • Powder Coating Industries
  • Dyeing Industries
  • Leather Industries
  • Food Processing Industries
  • Plastic Industries
  • Pharmaceutical Sector.


Pellet Burner-The Energy Saver Tool

Total oil equivalent used for industrial heating     : 1780 lakh ton per annum

Total Potential for Conversion 50%                       : 890 Lakh ton per annum

Possibilty of Biomass Conversion 15%                : 100-130 Lakh ton per annum

Therefore 130 lakh ton of oil can be saved per annum by using biomass in industrial applications to start with.




Airier Biomass Pellet Hot Air Generator

The basic principle of working of hot air generator is similar to pellet burner with an addition of a heat exchanging chamber, this heat exchanging chamber have fins inside which heats up the air in the chamber which is blown out through the blower provided on the opposite side. This gives a clean and hot air.



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