Renewability or Non

8/2/2019 Renewability or Non

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Renewability or non-renewability of a solar driven process is distinguished based on the energy storage or cycling

time involved. Renewable resources have a cycling time less than 100 years, while for non-renewable resources, it

is greater than a million years. The depletable resources are fossil fuels, which are non - renewable since the

rate of their utilisation far exceeds the rate at which they are formed. Examples of renewable resources are

hydro energy, solar energy, wind, biomass, and energy from wastes (such as biogas, agrowastes, etc.).

The renewable solar energy is subdivided nto direct and indirect types.Sunlight used directly can produce

electricity, heat or derive a chemical reaction. It is used indirectly when it drives other processes, biological -

chemical or climatic - mechanical, which in turn are used as sources of energy.

The energy sources can be classified in a number of ways based on the nature of their transaction, as

commercial and noncommercial sources of energy . All energy resources, particularly the commercial ones, are

natural. Coal, oil and nuclear sources constitute commercial sources, while firewood, biomass and animal dung

constitute noncommercial sources. Also, the energy sources are classified based on animate and inanimate

characteristics.

Energy sources could also be classified as exhaustible/ depletable or non - depletable / renewable resources.

The distinguishing feature of an exhaustible resource is that, it gets exhausted when used as an input of a production

process, and at the same time, its undisturbed role of growth is nil. That is, the temporal services provided by a

given stock of an exhaustible resource are finite.

Further, based on conventionality in deriving energy, energy sources could be classified as conventional (coal, oil,

hydro, nuclear, etc.) and non - conventional (solar, wind, tidal, geothermal, biogas, etc.) sources.

they are also classified as primary or secondary types - coal, firewood, etc., being primary sources and electricity,

a secondary source. Energy in its primary form can be of different kinds. The main types are Chemical (fossil

fuels- coal, oil, natural gas, peat; biomass - wood, agricultural residues, etc.),Potential (water at a certain

height),Kinetic (wind, waves), Radiation (sun), Heat (geothermal reservoirs, ocean thermal reservoirs) and

Nuclear (uranium). The primary form of energy must generally be converted into secondary or final forms of

energy before it can be used. For instance, the potential energy of a waterfall (primary energy) is converted

into electricity ( secondary energy), which is transmitted and transformed to supply (final) energy to a factory,

where it is converted into mechanical energy (useful energy) for productive operations.

important types of secondary energy are electricity and mechanical energy. But chemical energy is also

important as a secondary energy, for instance, in the form of refined oil products. Final energy is the energy thatreaches the consumer. This can be electricity at a suitable voltage, or chemical energy in kerosene or batteries.

The consumer, finally, uses certain equipment to convert the final energy he buys, into useful energy for one of his

end use activities, e.g., irrigation, transport, cooking, etc.

Most of the energy sources are substitutable to each other due to the fact that some form of energy can be

converted to other - such as coal to electricity, use of photo electricity to drive a chemical reaction, wind energy to

pump and store water that could be used to produce electricity when required, or solid biomass to produce liquid or

gaseous fuels of higher calorific value. All forms are ultimately converted into heat. This gives rise to the inter-fuel

substitution process with which an economy can substitute its abundantly available resources to the scarcely

endowed one.

Higher quality and thinner steel laminations in the stator. More copper in the windings. Optimized air gap between the rotor and stator. Reduced fan loses. Closer matching tolerances.


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A greater length.

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Energy conservation and energy efficiency both mean using less energy, but energy conservation refers to any

behavior that results in not using energy at all, such as turning off the lights when leaving a room.

Energy efficiency is a technological approach to using less energyrequiring less energy to perform the same

function. In this case, less energy is used and it lasts longer. An example is a compact fluorescent light bulb thatwill use less energy to illuminate a room.

1. Reduce, Reuse, Recycle

Do your part to reduce waste by choosing reusable products instead of disposables. Buying products with

minimal packaging (including the economy size when that makes sense for you) will help to reduce waste. And

whenever you can, recyclepaper,plastic, newspaper, glass and aluminum cans. If there isn't arecycling program

at your workplace, school, or in your community, ask about starting one. By recycling half of your househ

2. Use Less Heat and Air Conditioning

Adding insulation to your walls and attic, and installing weather stripping or caulking around doors and

windows can lower your heating costs more than 25 percent, by reducing the amount of energy you need to heat

and cool your home.

Turn down the heat while you're sleeping at night or away during the day, and keep temperatures moderate at all

times. Setting your thermostat just 2 degrees lower in winter and higher in summer could save about 2,000

pounds of carbon dioxide each year.

3. Drive Less and Drive Smart

Less driving means fewer emissions. Besides saving gasoline, walking and biking are great forms of exercise.

Explore your community mass transit system, and check out options for carpooling to work or school.

When you do drive, make sure your car is running efficiently. For example, keeping your tires properly inflated

can improve your gas mileage by more than 3 percent. Every gallon of gas you save not only helps your budget, it

also keeps 20 pounds of carbon dioxide out of the atmosphere.

5. Buy Energy-Efficient Products

When it's time to buy a new car, choose one that offers good gas mileage. Home appliances now come in a range

of energy-efficient models, and compact florescent bulbs are designed to provide more natural-looking light while

using far less energy than standard light bulbs.

Avoid products that come with excess packaging, especially molded plastic and other packaging that can't be

recycled. If you reduce your household garbage by 10 percent, you can save 1,200 pounds of carbon dioxide

annually.


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6. Use Less Hot Water

Set your water heater at 120 degrees to save energy, and wrap it in an insulating blanket if it is more than 5 years

old. Buy low-flow showerheads to save hot water and about 350 pounds of carbon dioxide yearly. Wash your

clothes in warm or cold water to reduce your use of hot water and the energy required to produce it. That change

alone can save at least 500 pounds of carbon dioxide annually in most households. Use the energy-saving settings

on yourdishwasherand let the dishes air-dry.

Energy demand management, also known as demand side management (DSM), is the modification of consumer

demand forenergythrough various methods such as financial incentives and education. Usually, the goal of demand

side management is to encourage the consumer to use less energy duringpeakhours, or to move the time of energy

use to off-peak times such as nighttime and weekends.[1]

Peak demand management does not necessarily decrease

totalenergy consumption, but could be expected to reduce the need for investments in networks and/orpowerplants.
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Renewability or Non