Hydrological analysis for ungauged potential hydropower river: the case of Dodwe River in Muheza Tanga, Tanzania

dc.contributor.authorAyeng’o, Sarah Paul
dc.date.accessioned2019-06-03T13:45:57Z
dc.date.accessioned2020-01-07T15:01:12Z
dc.date.available2019-06-03T13:45:57Z
dc.date.available2020-01-07T15:01:12Z
dc.date.issued2010
dc.descriptionAvailable in printen_US
dc.description.abstractHydrological analysis deals with the measurement or estimation of stream flow. It is difficult to estimate the stream flow when the river is ungauged. It needs more than five years to gauge it or otherwise one has to use other stream flow estimation methods. Three methods have been used in the estimation of stream flow which include ratio of area, regression analysis and run off methods. The estimated mean flows of Dodwe River using these methods are 0.327 m³/sec, 1.32 m³/sec and 0.245 m³/sec, respectively. The hydrograph and the flow duration curve of the Dodwe River have been drawn in this project. From the flow duration curve, the power of 109.2kW, 61.6kW, 39.2kW and 22kW at 20%, 40%, 60%, and 80% respectively were obtained. And from the design flow, the power of 91.56kW was obtained, but this amount of power can only be generated at 28% of the time. The uncertainty of using the above methods were calculated and they were reported as follows, maximum error for the ratio of area, regression analysis and run off method are ±1.4 m³/sec, ±1.8 m³/sec and ±0.45 m³/sec, standard deviation for these methods are 0.5, 0.7, 0.2, Standard error are ±0.04 m³/sec, ±0.06 m³/sec and ±0.02 m³/sec and average deviation are 0.1 m³/sec, 0.6 m³/sec and 0.02 m³/sec respectively.en_US
dc.identifier.citationAyeng’o, S. P. (2010) Hydrological analysis for ungauged potential hydropower river: the case of Dodwe River in Muheza Tanga, Tanzania. Master dissertation, Universirsity of Dar es Salaam. Available at http://41.86.178.3/internetserver3.1.2/search.aspxen_US
dc.identifier.urihttp://localhost:8080/xmlui/handle/123456789/947
dc.language.isoenen_US
dc.publisherUniversity of Dar es Slaamen_US
dc.subjectHydrological analysisen_US
dc.subjectRiversen_US
dc.subjectDodwe Riveren_US
dc.subjectMuheza Tangaen_US
dc.subjectTanzaniaen_US
dc.titleHydrological analysis for ungauged potential hydropower river: the case of Dodwe River in Muheza Tanga, Tanzaniaen_US
dc.typeThesisen_US

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