Saturday, September 14, 2013

Biomass energy

Biomass is biological material derived from living, or recently living organisms. It most often refers to plants or plant-derived materials which are specifically called lignocellulosic biomass.As a renewable energy source, biomass can either be used directly via combustion to produce heat, or indirectly after converting it to various forms of biofuel. Conversion of biomass to biofuel can be achieved by different methods which are broadly classified into: thermal, chemical, and biochemical methods.

Biomass is all biologically-produced matter based in carbon, hydrogen and oxygen. The estimated biomass production in the world is 146 billion tons a year, consisting of mostly wild plant growth.
Based on the source of biomass, biofuels are classified broadly into two major categories. First generation biofuels are derived from sources such as sugarcane and corn starch etc. Sugars present in these biomass are fermented to produce bioethanol, an alcohol fuel. Which can be used directly in a fuel cell to produce electricity or serve as an additive to gasoline.

When farmers in Nepal want to cook, use a lamp or heat their simple houses, renewable energy often comes into play. Biogas plants are to help the farmers make do without wood, the traditional energy source that covers 75% of total energy needs. The government of Nepal has launched a biogas programme with German help. So far, 100,000 biogas plants have been built. It is planned to treble this number by 2009. Farmers who keep livestock profit doubly from the clean energy: the plants supply them with gas for their stoves and lamps and the composted sludge can be used on the fields as natural fertilizer. Nepal’s industry has also discovered the biogas sector. Jobs are being created in small firms that build and maintain the biogas plants.

energy saving

Energy Saving Module(ESM) represent a green technology that reduces the electricity consumption (kWh) and maximum demand (kW) of air conditioning and refrigeration compressors. ensuring that the compressors work at maximum efficiency, while maintaining preset temperature levels. By preventing over-cycling by a process, known as ‘Compressor Optimisation' consumption of electricity is cut by between 15% and 25% in each case, thereby improving operating costs and cutting emission of greenhouse gases.


Efficient energy use, sometimes simply called energy efficiency, is the goal to reduce the amount of energy required to provide products and services. For example, insulating a home allows a building to use less heating and cooling energy to achieve and maintain a comfortable temperature. Installing fluorescent lights or natural skylights
reduces the amount of energy required to attain the same level of illumination compared with using traditional incandescent light bulbs. Compact fluorescent lights use one-third the energy of incandescent lights and may last 6 to 10 times longer. Improvements in energy efficiency are most often achieved by adopting a more efficient technology or production process.

The impact of energy efficiency on peak demand depends on when the appliance is used. For example, an air conditioner uses more energy during the afternoon when it is hot. Therefore, an energy efficient air conditioner will have a larger impact on peak demand than off-peak demand. An energy efficient dishwasher, on the other hand, uses more energy during the late evening when people do their dishes. This appliance may have little to no impact on peak demand.

Alternative sources of energy

Petrol,fuels,woods,etc are the main sources of energy.these types of energy once exhausts then it will never appear again.these energy resources are called non renewable source of energy.over use of this energy sources results their crisis.So another energy sources have been introduced to low the wastes of this energy.This is called alternative sources of energy.

The nature of what constitutes an alternative energy source has changed considerably over time, as have controversies regarding energy use. Today, because of the variety of energy choices and differing goals of their advocates, defining energy types as "alternative" is highly controversial. These alternatives are intended to address concerns about power sources with research and development.

Solar photo-voltaic (PV) is a technology used for converting energy from the sun into electricity. Solar charging is a viable business in most rural areas in Africa, able to provide services for mobile phone charging, car battery charging and lantern charging. Solar PV offers an alternative to kerosene, diesel generators and dry cell batteries. We support small businesses selling and distributing simple solar technologies which are improving the quality of lives of thousands of people.


energy development

Energy development is the production of renewable source of energy.This includes the proper development of the resources to meet the need of society.This helps in the proper and balance the need of society.the energy sources should be properly utilized and commercially used so that no any effect on the environment would seen .Everyone should properly utilize these energy sources  thinking of its sustainablity.

Thousands of people in society are employed in the energy industry, of which subjectively influence and impact behaviors.these peoples in these industry .Petroleum-powered vehicles are inefficient, this has been remediated though with the advance of technology  inception. Only about 30% of the energy from the fuel they consume is converted into mechanical energy.The rest of the fuel-source energy is inefficiently comes as waste heat.


Efficient energy use, simply called energy efficiency, is the goal of efforts to reduce the amount of energy required to provide products and services. For example, insulating a home allows a building to use less heating and cooling energy to achieve and maintain a comfortable temperature. Installing fluorescent lights or natural skylights reduces the amount of energy required to attain the same level of illumination compared to using traditional incandescent light bulbs.

energy crisis

An energy crisis is any great supply of energy resources to an economy. In popular literature though, it often refers to one of the energy sources used at a certain time and place, particularly those that supply national electricity grids or serve as fuel for vehicles. There has been an enormous increase in the global demand for energy in recent years as a result of industrial development and population growth. Since the early 2000s the demand for energy, especially from liquid fuels, and limits on the rate of fuel production has created such a bottleneck leading to the current energy crisis.
                 
Today's world is rhe enargy dependent life sustaining mass.All the energy resources we uses are in the verge of extinction and upcoming fututre in danger.

Coal, nuclear and hydro are used primarily to make electricity. Natural gas is widely used for heating. Biomass, which usually means wood or dried dung, is used for heating and cooking. The red sliver is wind and solar power, primarily. The red sliver may be small, but it is the future because wind and solar power are sustainable.


Over use of these resources causes these types of crisis.
Because of our numbers and our technology, we humans greatly influence the ecology of Earth. We humans, qualified or not, are at the controls. Earth does not come with an operating manual. We humans need to look to science to create one.

The coming era of limited and expensive energy will be very difficult for everyone on Earth but it will be even more difficult if it is not anticipated. It is of utmost importance that the public and especially policymakers understand the global energy crisis and the underlying science.