Showing posts with label Digital. Show all posts
Showing posts with label Digital. Show all posts

Sunday, January 1, 2012

12 Ways to Make Your House More Environmentally Friendly

!±8± 12 Ways to Make Your House More Environmentally Friendly

Making your house more environmentally friendly may sound like a daunting task, yet the small efforts you do at home every day can add up in terms of saved energy and money. The following is a list of twelve (12) simple tips for making your house an eco-friendlier and healthier place to live.

Lighten up on your lights. Compact fluorescent bulbs utilize approximately 25% the energy of their regular bulb counterparts. In layman's terms, if every American household changed just one bulb, the emissions savings would be comparable to removing 3 million motor vehicles from the road for an entire year. Fluorescent bulbs cost more but last 10 times longer. With fluorescent bulbs you can save up to in electricity per light over their lifetime. Because they contain minute amounts of mercury, check with your local waste authority about proper disposal. To save even more money on lighting, install timers and dimmer switches. Turn off lights when leaving a room. Use solar-powered lighting in your patio or back yard. Get rid of energy leeches. About 40 percent of the total energy used to run home electronics is used up when the items are not even turned on. Energy can be consumed through the cords of plug-in items such as cell phone chargers, computers, toasters, and other electric items. Be sure to unplug appliances when not in use and put your computer and monitor in the sleep mode since they consume about 95% less energy than those running on full power. Become "Star" Struck. A joint venture program between the Department of Energy and the U.S. Environmental Protection Agency (EPA), Energy Star helps you save money and protect the environment through energy-saving products and practices. Thanks to Energy Star, Americans saved billion on their energy bills in 2006 while avoiding greenhouse gas emissions tantamount to those coming from 25 million motor vehicles. When you go shopping, look for items bearing the Energy Star label that says "Exceeds government efficiency standards by using less water or electricity." Load up the refrigerator. Refrigerators consume the most energy in the house. However, a filled-to-the-limit refrigerator saves you money because it stays colder and operates more efficiently. To maximize the efficiency, set the thermostat of the refrigerator at 37 degrees and the freezer at 0 degrees Fahrenheit. Turn up the heat. By reducing your thermostat 2 degrees during winter and raising it 3 degrees during summer, you will prevent the annual emission of about 700 pounds of carbon monoxide. In addition, every degree lowered during the winter month saves you 5% on your utility bill. Lose the drippy faucet. Just one drop of water per second from a leaky faucet can expend about 160 gallons of water every month. To save money in the bathroom, consider installing water-efficient showerheads. A family of four can shave water usage by nearly 275 gallons per month by changing to the low-flow models. Keep an eye out for your water temperature. Electric water heaters manufactured after 2004 have tons of insulation. On any model before that, wrap the water heater with insulating blankets. By doing this, you save 10% on your water bill annually. Using cold water to wash your dirty clothes saves you about half the energy needed when washing in hot. Also, setting your dryer on the moisture sensor and not the timer, will further reduce energy consumption by 15%. Recycle. This is perhaps the easiest tip you can do to help improve the environment yet a quarter of us do not recycle. When shopping, look for products whose labels show that the product was made from recyclable materials. Reuse paper grocery bags by loading them up with old newspapers and use the plastic ones to dispose of trash or clean up your pet's feces. Make your own fertilizer. Food scraps and yard waste make up to 30% of household garbage. Compost bins can convert that garbage into usable fertilizer for your garden and plants. Stop junk mail. You can reduce the amount of junk mail filling up your mailbox by simply registering with the Direct Marketing Association's Mail Preference Service. You can also write to the sending company directly and request them to remove you from their mailing list. Throw away old batteries properly. Do NOT throw away old batteries in the trash. They can leak toxins into the ground. Instead, drop them off at a Rechargeable Battery Recycling Corporation site. Heed paint warnings. One of the top 5 hazards to human health, according to the EPA, is indoor air. Indoor air is three times more polluted than outdoor air. Paints and finishes are among the leading contributors to polluted indoor air because they emit volatile organic compounds (VOC) similar to the kind found in nail polish and gasoline. If you plan to paint your home, shop for low-VOC, zero-VOC, and natural paints at your local Home Depot or Lowe's.

Protecting the earth for the enjoyment of our children and their children is an everyday commitment that requires everybody's participation. By utilizing these tips, you will reduce your electric, water, and heating bill and put more money into your pocket. Your progeny will thank you for making their world a safe and healthy one.


12 Ways to Make Your House More Environmentally Friendly

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Saturday, October 29, 2011

Boat Alternators

!±8± Boat Alternators

Are they practical or is alternative production of AC power on boats preferable? Generators and shore supply are the main methods of obtaining AC power on board, but there are other methods. You could run a high voltage alternator from the main engine by belt drive, but this is not entirely satisfactory because the alternator needs a constant speed to maintain the correct number of cycles per second. Special drive systems are available which keep the alternator at constant speed when engine speed varies, but the cost of these can only be justified on larger vessels.

Another option to drive an alternator is a hydraulic drive. This system uses a hydraulic pump driven by the main engine, with the alternator driven by a hydraulic motor. This system allows the alternator to be mounted remote from the engine and makes the hydraulic power available for other uses, but in harbour it does mean keeping one of the main engines running to obtain the AC current. It can be a useful system at sea on a motor boat where shore power can be connected when the boat is in harbour.

The other two alternative systems convert power from the battery from DC into AC. This immediately limits their use to power equipment with a comparatively low consumption, otherwise the drain on the battery would be too high. The rotary converter is a unit in which a DC-powered electric motor drives an AC alternator. In practice the motor and generator are combined on the same shaft, sometimes using the same armature to improve efficiency.

Power inverters are solid state appliances which make the conversion from DC to AC electronically. Whilst the power output of a rotary converter is limited only by its size and the tolerance of the battery drain, inverters tend to be more limited in capacity; probably the maximum output you could hope to achieve is around 1 kW, although most are much less.

Neither rotary converter nor power inverters are particularly efficient. Both produce heat which is wasted energy, and the maximum efficiency is likely to be around 80 per cent. This would be achievable with a square wave inverter; a sine wave unit would have a lower efficiency. The low outputs and comparatively low efficiency thus make power inverters suitable only as a temporary means of making AC available, perhaps to power an electric drill or for a television set, but not for any permanent long term use such as powering a refrigerator.

Finally, there are the portable types of marine generators using an air cooled petrol or diesel engine. These are very useful units to have on board, but they do need adequate ventilation, so finding a suitable location where boat generators can be kept dry is not always easy. Most have a plug-in socket for the power output and they can usually produce mains voltage AC or battery charging DC from separate windings on the generator. They are not particularly quiet, and their main purpose is for repair work when using electric tools or for temporary battery charging rather than for constant use.

Obtaining power through any of these alternative systems is not cheap. The low efficiency of power inverters raises the cost of engine generated DC power being used, whilst the fuel costs of a portable petrol-engined charger can be up to ten times the cost of similar power from the mains supply. Even diesel generators can be three or four times the cost of shore power, even without considering the capital costs involved, so the shore cable connection is the option to go for if possible.


Boat Alternators

Ronbow Vanity Buy


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