A power plant on a river, as in Fig. P 3.166, must eliminate 55 MW of waste heat to the river. T

First, we need to understand that the power plant is using the river water to cool down its syst

Question

A power plant on a river, as in Fig. $\mathrm{P} 3.166,$ must eliminate 55 MW of waste heat to the river. The river conditions upstream are $Q_{i}=2.5 \mathrm{m}^{3} / \mathrm{s}$ and $T_{i}=18^{\circ} \mathrm{C}$ The river is $45 \mathrm{m}$ wide and $2.7 \mathrm{m}$ deep. If heat losses to the atmosphere and ground are negligible, estimate the downstream river conditions $\left(Q_{0}, T_{0}\right)$

          A power plant on a river, as in Fig. $\mathrm{P} 3.166,$ must eliminate 55 MW of waste heat to the river. The river conditions upstream are $Q_{i}=2.5 \mathrm{m}^{3} / \mathrm{s}$ and $T_{i}=18^{\circ} \mathrm{C}$
The river is $45 \mathrm{m}$ wide and $2.7 \mathrm{m}$ deep. If heat losses to the atmosphere and ground are negligible, estimate the downstream river conditions $\left(Q_{0}, T_{0}\right)$

Added by Rebecca M.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Sri K

11/23/2022

Step 1

This will increase the temperature of the river downstream. The heat transfer from the power plant to the river can be calculated using the formula: Q = m * Cp * ΔT where: Q is the heat transfer, m is the mass flow rate of the river water, Cp is the specific Show more…

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A power plant on a river, as in Fig. $\mathrm{P} 3.166,$ must eliminate 55 MW of waste heat to the river. The river conditions upstream are $Q_{i}=2.5 \mathrm{m}^{3} / \mathrm{s}$ and $T_{i}=18^{\circ} \mathrm{C}$ The river is $45 \mathrm{m}$ wide and $2.7 \mathrm{m}$ deep. If heat losses to the atmosphere and ground are negligible, estimate the downstream river conditions $\left(Q_{0}, T_{0}\right)$