Hydro/Biogas Based Distributed Generation for Katikala Distillation in Ethiopia, Case study at Arsi Negele
| dc.contributor.advisor | Bekele, Getachew(PhD) | |
| dc.contributor.author | Dera, Gemedo | |
| dc.date.accessioned | 2018-07-06T07:39:37Z | |
| dc.date.accessioned | 2023-11-04T15:14:35Z | |
| dc.date.available | 2018-07-06T07:39:37Z | |
| dc.date.available | 2023-11-04T15:14:35Z | |
| dc.date.issued | 2016-07 | |
| dc.description.abstract | This thesis presents the design of a hydro/biogas based electric supply system as distributed generation (DG) applied for katikala distillation in significant parts of Ethiopia, case study at Arsi Negele. It also presents a design of improved technology of katikala distillation still. The work began by investigating hydro and biogas energy potentials of the site, capacity, demand and the total number of electric customers; and then compiling data from different sources and analyzing it using HOMER software. The Software simulation result showed, the most cost effective system was the hydro-grid–biogas generator set-up. For this set-up, the total net present cost (NPC) is $67019448 , the cost of energy (COE) is 0.031 $/kWh, contribution from biogas resources is 64 % and capacity shortage in kWh is 161,7020 or 0.00% .Control schemes simulation system for the proposed distributed generation system has been developed in MATLAB/Simulink. This system consists of a plant simulated by a resistive load fed at 380 V through 15KV/380V transformer from a distribution 15 kV network. The designed power of hydro, biogas and grid was 2.835 MW, 7.5 MW, and 8 MW respectively. Steady state simulation shows how the generators coordinate each other due to control scheme. When the load demand is less than 10.835 MW (grid and hydropower) , there is no active power generated by SM. When fault occurred at grid side the micro grid is disconnected from the main grid and run in island mode and biogas generator power output is the result of the difference power between load demand and hydro generator output. The design of new distillation still started by first studying theoretical back ground about katikala and then the proposed pot still was designed and made with available items. The distillation using new still proceeded using 12 litter fermented wash. From the test result it is noticed that the boiling temperature is stabilized first at 89 oC, which shows that the alcohol content of the wash is around 12 alcohols by volume (ABV), and then the temperature was slowly increased as the alcohol content in the wash decreases. The cooling water temperature was around 40 oC and as the cooling water temperature rises the output distillate slows down. At a temperature of 89 o C the purity of alcohol collected was 46 ABV and at 92 o C it was 43 % ABV which was equal to the best katikala known as „Arefa Areke‟ meaning which forms foam when shacked. Keywords: Distributed Generation, Distributed Resource, Micro-Grid, Small-Hydro, Biogas, Matlab/Simulink, HOMER, Grid-Connected system, Off-Grid System, katikala distillation still | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/123456789/6878 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Distributed Generation | en_US |
| dc.subject | Distributed Resource | en_US |
| dc.subject | Micro-Grid | en_US |
| dc.subject | Small-Hydro | en_US |
| dc.subject | Biogas | en_US |
| dc.subject | Matlab/Simulink | en_US |
| dc.subject | HOMER | en_US |
| dc.subject | Grid-Connected system | en_US |
| dc.subject | Off-Grid System | en_US |
| dc.subject | katikala distillation still | en_US |
| dc.title | Hydro/Biogas Based Distributed Generation for Katikala Distillation in Ethiopia, Case study at Arsi Negele | en_US |
| dc.type | Thesis | en_US |