Factors influencing surplus electricity production in co-generation plants
| MSI04P3971 | |
| Lau Ah Wing, A. F. Kong Win Chang, K. T. K. F. Gunness, D. | |
| Factors influencing surplus electricity production in co-generation plants | |
| ISSCT Co-products workshop: Ethanol production and use, 14-18 July 2003, Piracicaba, Sao Paulo, Brazil, Programme and abstracts | |
| book chapter | |
| 2003 | |
| CD-ROM. Paper presented at the ISSCT Co-products workshop, 14-18 July 2003, Sao Paulo, Brazil | |
| En | |
| En | |
| Bagasse cum coal co-generation plants, in partnership with the sugar cane industry in Mauritius are becoming major players in the electricity production sector. Power sales to the utility, using bagasse and coal as fuel has reached 300 GWh and 447 GWh, respectively. This represents 43 percent of the country's total electricity demand in 2002. With an annual cane production of 5.8 million tonnes, surplus electricity production using bagasse as the sole fuel can potentially attain 800 GWh with the conventional steam cycle. The large disparity between the output of the most and the least efficient co-generation plants is not solely a matter of technological superiority, e.g., high pressure boilers. Factors such as fibre percent cane, moisture percent bagasse, boiler efficiency, process steam consumption and electricity consumption in the mill, influences surplus electricity production. It appears that cane with a high fibre content, when burnt in an efficient boiler, not necessarily at very high pressure, can achieve a satisfactory performance, in terms of surplus electricity. Typical figures from Mauritian co-generation plants are used to benchmark the surplus electricity production for plants with low, medium and high pressure boiler. Achievable targets ranged between 76 kWh/t cane to 143 kWh/t cane (433 to 815 kWh/t fibre) for the low and high pressure boilers, respectively for a factory without distillery. Should all the molasses produced by the factory be converted to ethyl alcohol by an annexed distillery, then the achievable targets ranged between 72 kWh/t cane to 139 kW/t cane (408 to 792 kWh/t fibre) for the low and high pressure boilers respectively. | |
| Electricity energy Cogeneration canesugar manufacture | |
| Mauritius | |
| Cane sugar manufacture | |
| Energy | |
| 2004-01-30 | |
| En | |
| ST | |
| LIST | |
| ST |