Thanks for your question. I'm curious to know which project you are doing; is it from this site?
Without knowing your procedure, I will help as best as I can. Hydrogen gas can be measured different ways, the most common way and available to students (you should be able to acquire the materials and safety equipment from your Chemistry lab at school) is water displacement via gas production.
An inexpensive way to measure gas production is to use water displacement. Basically how this works is that you will have a measured amount of liquid (water) in a beaker. Hydrogen gas (source of energy) produced by the reaction (from the algae hydrogen production) will displace the water by adding volume. Then you can determine the displaced water (the total measurement of the water after the introduction of the gas minus the volume at the start of experiment).http://www.ehow.com/how_7878127_measure ... ement.htmlhttp://www.ehow.com/how_8070726_collect ... meter.html
. You don't have to use a Eudiometer, you can use an inverted burette (just needs to be a tube with measurements on the side, so you can read the displaced water level). I suppose, if you really don't have those materials, you could use some sort of other glass measuring cylinder.
By measuring the amount of gas produced, you can determine the energy created. Here is a fairly simple setup on how to obtain the gas from your algae and measure the displaced water: see figure 1 for the setup.
All you need is the bottle of algae, a silicone tube from the top of the bottle to the beaker of water (make sure the seal is tight, otherwise gas will escape before it is measured), a rubber stopper, a burette (get from chemistry lab).http://www.plantphysiol.org/content/127/3/740.full
. You can even use this as a resource in your research section of your project.
Here is the procedure you can use to measure the produced gas (from another experiment): http://www.sciencebuddies.org/science-f ... #procedure
Let me know if this helps and if you have other questions.