Question 3
At the start, the tank is filled with water and has a volume of 1 m3.The pressure inside the tank is .The temperature inside the tank is.The is a vent that is closed on the top of the tank. The boundary temperature is.
A heater provides a heat transfer of and the valve is opened .The boundary temperature remains .Steam escapes through the open valve at the atmospheric pressure of .
Now at state 2, the valve is closed, and the heater is removed .The boundary temperature is .The pressure inside the tank is now .The temperature in the tank is now.
- Find the temperature of steam coming out of the vent.
- Determine the entropy generation of the process.
Question 5
You are planning to go camping for a week at a riverside location this summer. While camping there, you want to use your laptop computer by charging its battery with a power source. As a brilliant engineering student, you have built a hydropower generator that can be operated in the river water.
Now you are testing your device in the river using a velocimeter and a thermometer. You can assume that the device is adiabatically operated. Suppose you obtain the following data from the measurement.
Calculate the force required to keep pulling the device in the river water, given byFor the power you want to generate with the device, answer the following questions:
- What is the inlet diameter of the power generator?
Calculate the force required to keep pulling the device in the river water, given by
The shape of the generator need to be rectangular in shape with a hollow basin at one point that acts as a reservoir with a pipe at one bottom end that allows water to the nozzle (turbine).
