Subject: How do I measure the energy combustion of protein, fats and carbohydrates?

I am doing a grade 13 Chemistry experiment on the different levels of 
energy produced by protein, fats and carbohydrates.  I have researched and 
discovered that it is a bomb calorimeter that is used to measure the 
energy.  I would like to know how to build a simple bomb calorimeter that 
will allow me to measure the energy of my three substances.  I am  doing 
this experiment to discover what gives off the most energy, as a way of 
understanding the thought behind, high protein or high carbohydrate diets.

Re: How do I measure the energy combustion of protein, fats and carbohydrates?