Lighting for households Essay Example
- Category:Engineering and Construction
- Document type:Assignment
Environmental impact and sustainability
Environmental impact and sustainability
WLED solar lantern
The environmental impact of using WLED solar lantern as the lighting source for households will lead reduced negative environmental impact since they will use solar photovoltaic cells which will on be on land when done with. This is because it will use solar energy that is endless and cheap energy. They will not emit green gases which are negative to the land. This means that their impact is minimal as it takes small space and powering a single light source. Solar energy reaches the earth surface in discrete packets of energy referred to as photons. However, due to the light energy absorption and scattering effect of the clouds and atmosphere, only a fraction of the sun’s energy (about 1.4 kilowatts per square meter, which is the solar constant) reaches the earth. Concentrating solar energy hold more promise in that it is capable of producing temperatures of several hundreds to thousands degrees Celsius.
Normally solar power range only produces 0.08-0.2 pounds of carbon dioxide per Kw/Hr leading to minimal land degradation and habitat loss. The manufacturing side of PV cells uses hydrochloric acid, sulphuric acid, nitric acid, hydrogen fluoride, 1,1,1-trichloroethane, and acetone to process the semiconductor surface. The PV cells contain a number of more toxic materials such as gallium arsenide, copper-indium-gallium-dieseline, and cadmium-telluride. All these contribute to environmental impacts. But due to the fact the PV cells are recyclable manufactures recycle them due to materials being rare [ CITATION Uni13 l 3081 ].
Recycling helps a lot in trying to better the planet earth. It gives a chance to reuse resources that would have otherwise been heaping in landfills. There can be an end to using up all renewable materials to avoid depletion. In addition, energy efficiency would do well if maximized. The energy situation will then be solved.
Greenhouse gases are believed to be the cause of all of these changes. If we take a look at the levels of greenhouse gases being emitted by kerosene, we can see that these levels are very high on per capita basis. The WLED solar lantern will come with the advantage to the environment such as reduced green house emission and fuel efficiency. Such an advantages will propel it to acceptance by environmentalist. However, a promising futuristic model proposes to produce large scale power (up to 1 billion watts) through the design and emplacing of giant solar modules (weighing as much as 10 million pounds) in geostationary earth orbits. Direct solar energy can be captured at all times and at eight times the light an earth concentrator could receive. However, the current technology available in this age will make that a truly futuristic plan.
In conclusion, WLED solar lantern will little impact on the ecosystem and have great benefits to humanity, human activities and the environment. Unlike the impact of kerosene whose combustion has negative impact that is whenever there is a light or flame produced, there will be a certain amount of heat produced; it can either be the oxygen or fluorine. This leads to Acid rains that have harmful affects on plants as it is known as the rain which is unusually acidic. Emissions nitrogen oxide and sulfur dioxide is believed to be responsible for producing acid rains. It is also a popular term which is referred to the decomposition of rain, sleet, snow and dew. There are many other processes that are involved in the carbon cycle. The cellular respiration is done in every single living existence on the earth. The cellular respiration produces carbon dioxide which is then mixed up with the carbon dioxide in the environment and eventually be the part of the carbon cycle.
Diesendorf, M. (2007). Greenhouse solutions with sustainable energy. UNSW Press.
Jacobson, M. Z., & Delucchi, M.A. (2009). A Path to Sustainable Energy by 2030. Scientific American,
301 (5): 58–65.
Makower, J., Wilder, C., and Pernick, R. (2008). Clean Energy Trends 2008. Clean Edge.
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