1 AIT Asian Institute of Technology

Energy analysis of cogeneration in a sugar mill

AuthorBalakrishnan, Sadras Vasudev
Call NumberAIT RSPR no. ET-86-10
Subject(s)Energy conservation
Cogeneration of electric power and heat
NoteA research study (6 credits) submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Environment, Resources and Development
PublisherAsian Institute of Technology
AbstractThe cogeneration system in Khon - kaen sugar mill ltd., located in Khon - kaen province was studied and the energy and exergy analysis of the components of the cogeneration system was carried out . The cogeneration system consists of four boilers each of 80t /hr capacity , three 5Mw turbogenerators and five 1 5 00HP milling turbines and one 2000HP unigator turbine. The best case efficiency of the boiler was found to be 62. 74 % and the worst case efficiency was found to be 60 . 25%. Using the component analysis the analysis of the cogeneration system as a whole was carried out. The energy analysis indicate that the maximum first law efficiency of the cogeneration system recorded was 60. 3 9% The cogeneration system was modeled base don the experimental data collected and a computer program was written which takes into account the capacity limitations of the components of the system. Based on the first and second law analysis and on the model developed energy conservation measures were suggested to improve the efficiency of the cogeneration system. Major energy conservation measures suggested were, reduction of excess air supplied to the boilers, installation of bagasse drier (The source o f drying of bagasse will be the flue gas) and operating the turbo generators, milling turbines and unigator turbines at their rated capacity .
Year1986
TypeResearch Study Project Report (RSPR)
SchoolSchool of Engineering and Technology (SET)
DepartmentOther Field of Studies (No Department)
Academic Program/FoSEnergy Technology (ET)
Chairperson(s)Prida Wibulswas ;Bhattacharya, Sribas C.
Examination Committee(s)Sauter-Servaes, Florian
Scholarship Donor(s)CEC
DegreeResearch Studies Project Report (M. Eng.) - Asian Institute of Technology, 1986


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