Question

L Calculate the power(W) transferred through a piece of aluminum that is 5 cm x 5cm x 15cm long when
the temperature on the hot end is 100'C and the temperature in the cold end is 20 C. K-20, 100 (W.
cm/m.C
What is solar hydrogen? (73)​

Answer 1

Answer:

60OC

Explanation:

Answer 2

Given:

Dimensions of the furnace wall

The temperature on the hot end and temperature on the cold end.

To Find:

The power transferred and what is solar hydrogen.

Solution:

The dimension of the furnace wall is given as l× b× h

                                                                           = 5×5×15m³

The thermal conductivity of the brick (k)is 0.4W/mK

The thickness of the wall of the furnace is(t)  = 25cm

The thermal conductivity of the ceramic blanket (k1) = 0.2 W/mK

Inside heat = 100°

the outside heat is 20°

Now, the formula for the rate of heat loss through each wall is =

Q = $\frac{T_{i}-T_{o} }{R}$

Here $T_{i}$ = the inner heat which is given as 100° and $T_{o}$ = the outside heat which is given as 20°.

Then put the values in the formula.

Q = $\frac{100-20}{0.08544}$     As we know the value of R is 0.08544

Now, subtract the numerator and then divide it by the denominator.

   = 936.32W

Therefore, the power transferred is 936.32W.

Solar Hydrogen can be defined as an energy cycle where a solar power electrolyzer is used to convert water to hydrogen and oxygen.