The Energy Supply And Usage Of Renewable Energy

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Chapter 1: Introduction to Thesis
Introduction to Thesis
1.1 Statement of the problem
The world’s energy supply and usage harnessed by humans are predominantly occupied by fossil fuel combustion a non-renewable resource. On the other hand small fractions of the energy harnessed by humans are renewable resources at only about 13% of the total energy sourced. With fossil fuels emitting high amounts of greenhouse gasses that affect our climate negatively in the long term in addition to its non-renewability, alternative sources of energy supply particularly in the category of renewable energy can help alleviate the impact of the shortage of resources and the harmful impact of our energy usage on the environment. Salinity-gradient energy can potentially be a part of this alternate source of renewable energy as well as gas emission-free as it is based on the mixing of solutions with different salt concentrations through the uses of Osmotic pressure and a membrane.
Salinity-gradient energy is applied through the application of pressure retarded osmosis (PRO) and its use for power generation has made it a viable pairing for desalination plants that use reverse osmosis/forward osmosis (FO/RO) in its processes.
Salinity-gradient energy has only gained substantial attention in the last 10 years due to increasing cost of fossil fuels and because of its relatively new upbringing there is still a lot of research and understanding to be achieved. One of the major reasons for this belief
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