A dam supplies water for a community as shown in Fig. 1. Also, a turbine is used before the storage reservoir to produce electricity. The system is designed to provide 2620 L/s of water at 20°C. The pipe system consists of 76 m of pipe and two 90° elbows. All pipe is 508 mm diameter, which made from cast iron. Figure 1: Schematic diagram of task 1. - Calculate the average velocity of water in the pipe? - Determine the Reynolds number in the pipe system and the significance of this Information? - Using Bernoulli’s equation, find the water pressure at point C? - Determine the head losses accumulated by the fluid when flowing in the pipeline?
A dam supplies water for a community as shown in Fig. 1. Also, a turbine is used before the storage reservoir to produce electricity. The system is designed to provide 2620 L/s of water at 20°C. The pipe system consists of 76 m of pipe and two 90° elbows. All pipe is 508 mm diameter, which made from cast iron.
Figure 1: Schematic diagram of task 1.
- Calculate the average velocity of water in the pipe?
- Determine the Reynolds number in the pipe system and the significance of this Information?
- Using Bernoulli’s equation, find the water pressure at point C?
- Determine the head losses accumulated by the fluid when flowing in the pipeline?
- Calculate the energy that the fluid will lose after passing through the turbine by applying the energy equation?
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- If the used turbine converts only two-thirds of the energy that the fluid will lose after passing through the turbine, what is the efficiency of this turbine?
- Identify the most common water turbines and the limitations that exist within these different types?
- Although hydraulic turbines considered one of the most efficient power plants, their ecological impact is a big concern. Discuss this issue and suggest remedies for such problems by writing 100 words at least?
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