Steam with quality 0.85 enters the condenser of a power plant at 20 kPa with a mass flow rate 10 kg/s. It is cooled by water from a nearby river by circulating through the tubes inside the condenser. If the steam leaves the condenser as saturated liquid at 20 kPa and the temperature rise of the cooling water is 15°C, (a) determine the minimum mass flow rate of the cooling water required, (b) determine the heat transfer rate from the steam to the cooling water. Hint: Average specific heats at room temperature can be used for the cooling water from river. Water

Steam with quality 0.85 enters the condenser of a power plant at 20 kPa with a mass flow rate 10 kg/s. It is cooled by water from a nearby river by circulating through the tubes inside the condenser. If the steam leaves the condenser as saturated liquid at 20 kPa and the temperature rise of the cooling water is 15°C, (a) determine the minimum mass flow rate of the cooling water required, (b) determine the heat transfer rate from the steam to the cooling water. Hint: Average specific heats at room temperature can be used for the cooling water from river. Water

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Steam with quality 0.85 enters the condenser of a power plant at 20 kPa with a mass flow rate of 10 kg/s. It is cooled by water from a nearby river by circulating through the tubes inside the condenser. If the steam leaves the condenser as saturated liquid at 20 kPa and the temperature rise of the cooling water is 15°C, (a) determine the minimum mass flow rate of the cooling water required, (b) determine the heat transfer rate from the steam to the cooling water. **Hint:** Average specific heats at room temperature can be used for the cooling water from river.

### Diagram Explanation

The diagram on the right shows a schematic representation of the condenser. It includes:
- A set of coiled tubes where the river water circulates to absorb heat from the steam.
- The condenser is labeled with an inlet and outlet for steam at 20 kPa.
- A label indicating water enters and exits through the coiled tubes within the condenser.

This setup illustrates the process of heat exchange where steam is condensed into a saturated liquid as river water absorbs the heat.

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Step 3: Calculating the heat transfer from steam to the cooling water

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