How can Sugar Mills aid in generating electricity?

 

Bagasse is the dry, mushy fibrous substance that persists when sugarcane or sorghum stems are mashed to excerpt their juice and is an offshoot yielded in the method of synthesising sugar. It is also called “Megass”.

GSEL Maharashtra, Gangakhed Sugar & Energy Limited explains, Bagasse is scorched as fuel in the sugarcane mill or utilized as an origin of cellulose for manufacturing animal feeds. Paper is elicited from bagasse. It is presently used as a biofuel and in the fabrication of pulp and paper commodities and building pieces of equipment. It is a fundamental component for the structure of pressed building boards, acoustical tile, and additional construction materials and can be made into numerous ecological and environment-friendly plastics. It is also engaged in the generation of furfural, a colourless fluid used in the synthesis of chemical outputs such as solvents, nylons and even medications. The bagasse generated in a sugar factory is nonetheless used for the production of steam which is further used as a fuel source. For every 10 tonnes of sugarcane mashed, a sugar factory elicits approximately 3 tonnes of soggy bagasse. Since bagasse is a derivative of the cane sugar industry, the amount of output in a country is in line with the amount of sugarcane produced.

 

     Also read: Gangakhed Sugar & Energy Limited Owner- Ratnakar Gutte


Bagasse when scorched in abundance produces ample heat energy to provide all the necessities of a regular sugar mill, with sufficient energy to economize on. To this edge, an auxiliary use for this trash product is in cogeneration, the use of a fuel source to give both heat energy, employed in the mill and the electricity which is typically swapped onto the prospect through power grids.

 The steps entailed in the generation of electricity using bagasse as raw material are:

             Bagasse is amassed as a dump from sugar mills and stocked in a moisture-free region.

             A railing process is executed to take bagasse from the stocked region to boilers.

             The boilers are huge cylindrical chambers halved into two parts, a shorter portion where the burning of bagasse takes place and a larger portion where water tubes are there in close proximity and thinner tubes to expand surface area.

             The water in the tubes is passed through an economizer to make it a bit warm.

             The burning process transmutes the water present in these tubes into high-pressure steam.

             The steam then flows towards the turbines. This steam also aids in sugar-making processes.

             High-pressure steam helps to operate turbines which aid in the generator to rotation, as the turbine is attached to the generator through a shaft.

             The generator then propagates electricity which can be stored or supplied for sugar industry uses or can be sold to WAPDA which will help ameliorate the burden of electricity generation.

 

The power generated through cogeneration substitutes the traditional thermal alternative and curtails greenhouse gas emissions. In India, curiosity in high-efficiency bagasse-based cogeneration began in the 1980s when the electricity supply started plummeting low in demand.

Gangakhed Sugar Owner, Ratnakar Gutte, Member of the Legislative Assembly, Maharashtra gave a reference to a foretold statement where high-efficiency bagasse cogeneration was anticipated as a desirable technology both in terms of its capability to produce carbon-neutral electricity as well as its financial benefits to the sugar industry. In the current synopsis, where fossil fuel rates are exploding and there is a scarcity and non-availability of coal, co-generation appears to be a favourable advancement. The momentum on distributed generation and boosting awareness for slashing greenhouse gas emissions intensifies the appetite for cogeneration. Also, it helps in regulating pollution from fossil fuels.

In the last 15 years, 1952.53 MW of bagasse cogeneration projects were authorized. The states with an administration position in executing biomass power projects like bagasse-based cogeneration of power are Karnataka, Tamil Nadu, Andhra Pradesh, Punjab and Maharashtra Chhattisgarh and Rajasthan.

 

527 functioning sugar mills in India crush around 240 million tonnes of cane every year and produce 80 million tones of moist bagasse (50% moisture), of which they expend around 70 million for meeting the captive necessities of power and steam. Hence, electricity production through cogeneration in sugar mills in India is a significant avenue for replenishing low-cost, non-conventional power.


Also read : Ratnakar Gutte - A root lavel leader

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