Globe technical Training and Engineering Services

   GENERAL_ASPECTS_OF_ENERGY_MANAGEMENT_AND_ENERGY_AUDIT   (CHAPTER 11:NEW AND RENEWABLE ENERGY SOURCES (NRES)) Concept of New and Renewable Energy Renewable energy is energy obtained from sources that are essentially inexhaustible such as sun and wind. Examples of renewable resources include wind power, solar power, geothermal energy, tidal power, bio- energy (bio-fuels grown sustainably) and hydropower. A renewable energy system  converts the energy found in sunlight, wind, falling-water, sea-waves, geothermal heat, or biomass into a form, we can use such as heat or electricity. Another important feature of renewable energy is that it can be used without the release of harmful pollutants. Renewable energy is also known as non-conventional energy. Renewable energy sources are essentially flows of energy unlike the fossil and nuclear fuels which are considered stocks of energy. Fundamentals of Solar Energy Solar radiation is radiant energy emitted by the sun com...

   GENERAL_ASPECTS_OF_ENERGY_MANAGEMENT_AND_ENERGY_AUDIT   (CHAPTER 10:ENERGY EFFICIENCY AND CLIMATE CHANGE) Energy and Environment The combustion of hydrocarbon based fuels in industrial activity generates by-product materials, many of which are considered to be air pollutants (Figure 10.1). The principal emissions which impact on the air environment are carbon dioxide, particulate matter (dust), sulphur oxides, nitrogen oxides, hydrocarbons, and carbon monoxide. Particulate matter is predominantly generated during the combustion of solid fuels such as coal, lignite, biomass etc mostly from ash content in the fuel. Sulphur oxide (SOx) emissions mainly occur from combustion of oil and coal due to sulphur content in the fuel. Nitrogen oxides (NOx) emissions are also associated with fuel combustion, both from fuel as well as combustion air. Both SOx and NOx emissions have been identified as major air pollutants globally as they lead to acid rain which is a trans-bounda...