Acknowledgement ............................................................................................................................................... 1
List of tables .................................................................................................................................................... 1
List of figures .................................................................................................................................................. 1
List of abbreviations ........................................................................................................................................... 1
Executive summary ............................................................................................................................................... i
1.0 Details of the unit .................................................................................................................................. 1
1.1 Particulars of unit .................................................................................................................................... 1
2.0 Energy profile......................................................................................................................................... 3
2.1 Process flow diagram ............................................................................................................................. 3
2.1.1 Sand preparation plant ................................................................................................................ 3
2.1.2 Core preparation and moulding ................................................................................................. 3
2.1.3 Melting ........................................................................................................................................... 3
2.1.4 Knockout and finishing ............................................................................................................... 3
2.2 Details of technology identified ............................................................................................................ 4
2.3 Energy used and brief description of their usage pattern .................................................................. 4
2.4 Energy sources, availability & tariff details ........................................................................................ 4
2.5 Analysis of electricity consumption ...................................................................................................... 4
2.6 Analysis of other energy forms/ fuels .................................................................................................. 5
3.0 Proposed technology for energy efficiency ...................................................................................... 7
3.1 Replacement of existing cupola furnace by new IGBT type induction furnace .............................. 7
3.1.1 Background .................................................................................................................................... 7
3.1.2 Observations and analysis ........................................................................................................... 7
3.1.3 Recommendation .......................................................................................................................... 8
3.2 Cost benefit analysis ................................................................................................................................ 8
3.3 Pre-training requirements ...................................................................................................................... 9
3.4 Process down time for implementation ................................................................................................ 9
3.5 Environmental benefits ........................................................................................................................... 9
3.5.1 CO
2
reduction ................................................................................................................................. 9
3.5.2 Reduction in other pollution parameters (gas, liquid and solid) ............................................ 9
3.6 Social benefits ......................................................................................................................................... 10
3.6.1 Improvement in working environment .................................................................................... 10
3.6.2 Increase in manpower skills ....................................................................................................... 10
3.6.3 Increase in wages/salary of workers ........................................................................................ 10
3.6.4 Health & safety of plant & personnel ....................................................................................... 10