Pollution Control Technologies Coursework 1

Order Description

Question 1.

Assuming the Sun and all the planets behave as black bodies and considering the following

information given in the Table below:

(i) Determine the Solar flux arriving at the Earths surface given that the temperature

of the Sun is 60ooK. Subsequently determine the Earths effective temperature Te.

(ii) Discuss the possibility of a greenhouse effect for the planets given in the Table.

Planet Distance from the Albedo CO2 T (K) at

Name Sun (km) (a) concentration ground level

Venus 8 0.75 700

1.08 x 10

Mars 8 0.15 0.95 220

2.28 x10

Earth 8 0.3 1 X% 28 8

1.5 x10

5 78 2 4

Suns radius : 6.9610 km; Stefan-Boltzmann Constant s = 5.6710 W m K

Question 2.

(a) Calculate the total mass of the Earths atmosphere given that at the Earths surface the

atmospheric pressure is: P(0) = 105 Pa and that the radius of the Earth is RE=6400 km.

(b) Calculate the mass of emitted carbon since pre-industrial times given that the

concentration of Co2 has risen from 278ppm to 398 ppm. You may assume: (i) that the

molecular weight of Carbon is 12 g/mole and (ii) overall molecular weight of air and the

atmospheric mass have not been modified since pre-industrial times.

Question 3.

A power plant burns 970 tons of coal (containing 2% sulphur) per day. All of the sulphur is

burned completely and emitted into the atmosphere from a stack with an effective height of

102 m. For a wind speed of 5.2 m/s atmospheric stability category C calculate SOZ

concentration at:

(a) the ground level along the plume centre line 10 km downwind;

(b) 5 m above ground 3 km downwind at central line.

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