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008 280998s1988 th r 0000|0 eng d
035 _a.b10239698
099 9 _aAIT Thesis no. ET-88-7
100 1 _aVigar, Shafiq Ahmad
245 1 0 _aEnergy analysis and conservations in cogeneration system in a sugar mill in Pakistan
260 _aBangkok :
_bAsian Institute of Technology,
_c1988
300 _a205 p.
490 1 _aThesis ;
_vno. ET-88-7
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master in Engineering, School of Environment, Resources and Development
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1988
520 _aA study of a cogeneration system in Shakarganj Mills Ltd ( SML), Jhang (near Faislabad) was performed . Energy and exergy analysis of the components of the cogeneration system was carried out. The cogeneration system comprised three boilers having capacities of 80 t/h, 2 * 40 t/h respectively (the third one being the standby), three turbogenerators of capacities 2 * 2 MW a nd 3.5 MW ( standby) respectively . Turbogenerators 1 and 2 are operating at same output . Five milling turbines of capacity 4 * 373 kW a nd 1 * 596 kW, one unigator and one cutter turbine of capacities 1040 kW and 373 kW respectively. The milling turbine No 2, 3 & 4 are operating at same output. The analysis was don separately for 80 t/h and 40 t/h boilers. For 80 t/h boiler the best efficiency was found to be 60. 1 % and worst efficiency was 58. 3 % {u2022} For 40 t/h boiler the best efficiency was found to 59.8 % and worst efficiency was 58.4 % The best and worst efficiencies for other equipment have also been determined. The technical and economic feasibility study of bagasse drier using flue gas from the boiler was also carried out. The cogeneration system was modelled using actual data collected and n ew data generated for the bagasse dryer. Computer programmes were made to simulate the cogeneration system, taking into account the capacity limitations of the components of the system. Bas e d on the first and second law analysis a nd on the model developed , energy conservation measures were suggested to improve the efficiency of the cogeneration system. Other major energy conservation measures suggested. are also given such as suggestions for Energy Management, reduction of excess air supplied to the boilers, and operating turbo generators , mills , unigator and cutter turbines close to their rated characteristics.
650 0 _aSugar factories
_xEnergy conservation
650 0 _aCogeneration of electric power and heat
700 1 _aPrida Wibulswas,
_eChairperson
700 1 _aBhattacharya, Sribas C.,
_eCo-Chairperson
700 1 _aTentscher, Wolfgang,
_eExamination Committee
710 2 _aSwitzerland,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. ET-88-7
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B18785
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