Análisis comparativo en el consumo de electricidad y gas natural en la zona de calefacción en máquinas extrusoras para optimizar el proceso de fundición del plástico
The research project consisted of comparing the consumption of electricity and natural gas in the heating zone in an extruder machine for the selection of an optimal process in the melting of plastic, for the analysis, low-density polyethylene was considered as raw material for the manufacture of 1...
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| Format: | masterThesis |
| Sprog: | spa |
| Udgivet: |
2022
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| Fag: | |
| Online adgang: | http://repositorio.utc.edu.ec/handle/27000/9833 |
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Tilføj Tag | Summary: | The research project consisted of comparing the consumption of electricity and natural gas in the heating zone in an extruder machine for the selection of an optimal process in the melting of plastic, for the analysis, low-density polyethylene was considered as raw material for the manufacture of 1 inch black hose, knowing that the capacity of the extruder is 50 kg / h and the specific heat of polyethylene is 1.9 kJ / kg. K 5500 W of heat is required to melt this material, for Therefore, there are two methods that comply with this process, method No. 1 presents 10 electrical resistances that generate 6000 W, transferring 5495.97 W, with 504.03 W of heat losses, it has a yield of 91.59% , it takes a time of 30'34 ”to maintain 200 ° C, the monthly cost of the electricity it uses is $ 68.64, it produces a monthly amount of 8030 kg that is 401 rolls of hose and has a monthly waste of 220 kg, method No. 2 transfers 7311.03 W in the form of heat with 688.97 W losses, it has a yield of 91.38%, it takes 20'35 ”to maintain a temperature of 200 ° C, the monthly cost of natural gas is $ 49 , 38, produces a monthly quantity of 8327 kg that is 416 hose rolls and has a monthly waste of 110 kg, therefore, the casting method No. 2 is selected, which presents a majority heat generation, an equal performance, it maintains the 200 ° C in less time, has a lower cost in consumption of heating energy, produces 15 more rolls of 1-inch hose per month and its material waste is doubly less. |
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