# Engineering Question

*label*Engineering

*timer*Asked: Nov 7th, 2016

**Question description**

A fully mixed water storage tank contains 500 kg of water, has UA product equal to 12 W/oC, and is located in a room that is at a constant temperature of 20oC. The tank is examined in a 10 h period starting from 5 am where the Qu is equal to 0, 0, 0, 10, 21, 30, 40, 55, 65, 55 MJ. The load is constant and equal to 12 MJ in the first 3 h, 15 MJ in the next 3 h, and 25 MJ at the rest of the time. Carry out the computation to find the final storage tank temperature using per hour interval if the initial temperature is 45oC. Make use of spreadsheet program for the calculation