Abstract
Discharge flow rates were used to assess and determines the hydropower capacity of water source. It is known that the procedure for discharge measurement using common methods requires multiple parameters. These parameters were measured respectively to determine the water power. In reality, water flow may not the same in the succeeding times. Therefore, parameters should be measured simultaneously will give a more relevant water profile assessment. Likewise, these common methods are not feasible during heavy water flow. With these, the study develops two things; 1.) the adjustment factors of different common methods in measuring water discharge, and 2.) the simplified method of weir method. The simplified approach of weir method measures the water discharged by measuring the overflow head of water above the weir crest. A simultaneous data observation was performed in the experiment to develop the simplified approach of weir method and derived adjustment factors of each method. The result shows that 3-point method of current flow-meter and float method gives almost the same as true discharge value. The true discharge value of the simplified method of weir method is multiplied by the adjusted factor equal to 0.81.
Highlights
Hydro energy generation is renewable and is sustainable and could generate clean electricity
Taking the volumetric method as the true discharge, the result of experiment shows that the flow rate of simplified approach weir method has the highest flow rate value
While the 3-point method and float method were significantly equal to the true water discharge (Table 1.)
Summary
Hydro energy generation is renewable and is sustainable and could generate clean electricity. Studies show that the generation of electricity through renewable energy reduces carbon dioxide emission on earth, which results to the “greenhouse effect” as well as the “global warming”. Renewable energy such as solar, wind, biomass, wave, geothermal, and hydro are indigenous sources of energy which could be utilized especially in the countries like the Philippines. The hydropower system generates energy through the use of falling water in a river or stream. The electrical power of a stream or river varies and directly proportional to the volume of water in cubic meters per second described as flow rate, Q
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