• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Energy efficiency in housing.

Extracts from this document...

Introduction

INTRODUCTION: Energy efficiency is the percentage of total energy input into an energy conversion device or system that does work and is not converted to low quality useless heat. Being energy efficient helps the environment and helps reduce our reliability on renewable resources. Energy efficiency uses less energy and does more useful work. Although energy efficient devices costs more than least efficient devices but this pays off in the long term. Beginning with the most common thing in houses, lights, we can use fluorescent lights instead of incandescent lights which waste 95% of the energy input. Adding insulation to the house and windows can very much reduce waste energy. Another step to energy efficiency in houses is to plug leaks. People should also switch off electric appliances, lights, etc. when they are not using them. Using tankless water heaters, which only heat when needed, saves a lot more energy than conventional heaters, which heat water all day. As there is a huge pressure on renewable resources and the risk of losing them, there are other alternative resources which need to be used instead. Those alternative resources are renewable resources, which are solar energy, hydro power, win energy, energy from biomass, and geothermal energy. Energy derived from the sun s called solar energy. Solar energy can be collected to produce high-temperature heat and electricity basically by a solar power tower and a solar thermal plant, where huge solar panels collect the sun's where huge solar panels collect the sun's thus transforming the radiant energy into electricity. ...read more.

Middle

The other type is active solar house, where solar collectors absorb solar energy and a fan or pump supplies part of a building's space-heating or water-heating needs. <<Ali's part>> The group has chosen a strawbale type of house. A strawbale house involves all of the basic needs of a house, is environmentally friendly and has a higher insulation value that waste less energy. Unsurprisingly it has many advantages that include being resistant to fires especially if it's built in a very dry and hot climate, straw has a unique appeal, is easily available, sound proof, cheap, and is a good insulator. It's also 100% renewable instead of being burned creating pollution. BODY: <<Abe's part>> Energy efficient appliances house will use/products/costs: The house will include several different energy efficient appliances. First of all is the use of wind energy. A wind tower is set up 30 meters across from the house and its height is more than the house by 30 meters. The Sun heats our atmosphere unevenly, so some patches become warmer than others. These warm patches of air rise, other air blows in to replace them - and we feel a wind blowing. The more towers, the more wind, and the larger the propellors, the more cheap electricity we can make. The transmission lines will transport this electricity into the batteries that then will heat the house and the tankless water heater.(1) ...read more.

Conclusion

Greenhouse gases are being let into the air very much as more and more fossil fuels are being burned. These gases pollute the air and thus lead to global warming. Global warming is becoming one of the greatest issues in the world today. With the greenhouse gases being let into the air more and more day by day, global warming increases. Fossils are being burned in a fast rate and will end one day, as they are nonrenewable resources. If we, humans, start being energy efficient we can all reduce rely on fossil fuels, and thus reduce the greenhouse gases, and thus global warming. There are many alternative renewable resources we can use instead of fossil fuels. We have solar energy, wind energy, hydro power, geothermal energy, and energy from biomass. Energy efficient houses are being built using energy from renewable resources and having energy efficient appliances like fluorescent lights, tankless water heaters etc. Although these houses cost 5-10% more than convectional houses, but the cost pays back in 5-7 years. Solar energy can be used easily in almost every part of the world, as the sun shines everywhere. There are many places which have good winds for using wind energy or have big rivers which can be easily reliable for hydro power. We have all these renewable resources and we should start using them for our future generations. As being energy efficient helps our environment, we should all begin to be so. Being energy efficient doesn't require energy from us but instead stop wasting energy from the world. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Energy, Respiration & the Environment section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Energy, Respiration & the Environment essays

  1. Marked by a teacher

    To make sure we have plenty of energy in the future, it's up to ...

    4 star(s)

    This chain reaction gives off heat energy. This heat energy is used to boil water in the core of the reactor. So, instead of burning a fuel, nuclear power plants use the chain reaction of atoms splitting to change the energy of atoms into heat energy.

  2. Marked by a teacher

    A comparative study of the density of patella vulgata (common limpet) across a sheltered ...

    4 star(s)

    This will generate a random number. 2. Once you get to the shore, you will have to measure out where you will place your transect line. You have to place the transect line 3.5 meters from chart datum and you measure this out by using the meter ruler and the spirit level.

  1. The Pancreas is a large gland that forms part of the Endocrine System, but ...

    The problem that my tests have is that they are not able to provide me with data such as this. In reference to Tasks 1& 2, if a patient received a Negative Results for a Pancreatitis Test (Here it is Patient C)

  2. A Comparative Study of the Density of Patella Vulgata (Common Limpets) in the Optimum ...

    The moon is responsible for creating waves. The gravity from the moon is responsible for the tidal bulges (oceans bulging out at the same time which result in high tides). Due to the earth rotating on its axis, the tidal bulges move back and forth causing high and low tides.

  1. Why the Body Needs Energy? Every living cell within the ...

    Reference: http://www.ucl.ac.uk/~sjjgsca/CeelMitochondria.gif Class notes hand out 12 / 3 / 2008 Website viewed on 20/ 4 / 2008 Cardiovascular (heart) System This picture below is the structure of the heat, Reference: Class notes hand out 02 / 04 / 2008 The heart is a muscle that is approximately the size

  2. chemistry of renewable resources

    This again can be used for running cars All fossil fuels are compounds of carbon. In a world containing an atmosphere of around 20% oxygen, there is a very strong tendency for carbon compounds to oxidise. Plants (and some bacteria)

  1. Discuss the Advantages and Disadvantages of being Ectothermic and Endothermic in the Vertebrates.

    These small animals occupy key positions in terms of energy flow through an ecosystem. Their small size and high conversion rates (of energy into biomass) allow them to eat small insects, packaging them into a form that can be eaten by larger endotherms.

  2. Investigation into the Effectiveness of Insulation at Preventing the Loss of Thermal Energy from ...

    Because I am investigating the amount of thermal energy lost under different insulation conditions, this can be the only factor that I can change. Other factors that could change the outcome of my investigation are:- o Temperature of water at start of each experiment (Water may cool faster at higher temperatures that at low temperatures).

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work