Aside from the price tag and the saving of greenhouse gas emissions, the great thing about a pv hot water system is its virtual ease and durability!
There are two different types of collectors used in a solar hot water system:
1. Flat plate collectors (suitable everywhere tank roof mounting is required)
2. Evacuated tubes (great used for frost prone areas)
Flat Plate PV Collectors
Flat plate collectors work on copper pipes running through a glass covered collector, frequently attached to a water storage tank on the roof. The hot water will subsequently thermo-siphon itself in and out of the container, hence heating the water.
Evacuated Tube PV Collectors
Evacuated tubes employ a glass tube which has a vacuum within it in addition to copper pipes passing through the centre. The copper pipes are each connected to a standard manifold that is next joined to a slow flow circulation pump that pumps water to a storage cistern below, consequently heating the hot water in the course of the daytime. The hot water can be used at night or the next day due to the insulation on the tank.
The evacuation tube systems are a cut above as they can extract the heat from the air on a moist day and don't need direct sunlight. As a result of vacuum within the glass tube, the entire efficiency in all areas is superior and there's improved performance whilst the sun isn't at an optimum angle - like while it's early each day or in the late afternoon.
The Water Tank and Thermal Mixing
As heat rises, the hot water delivered into the tank with the solar collector is drawn from the top for use in the home. As the temperature of the water can exceed sixty degrees Celsius/one hundred and forty degrees Fahrenheit (a requisite to eradicate bacteria), to be able to make certain of a safe temperature at the taps, a tempering valve can reduce the temperature to close to 45 degrees Celsius/113 degrees Fahrenheit.
Electric and Gas Boosters
Even as the sunlight can provide adequate energy to offer you enough hot water for most of the year, there may perhaps be extensive periods of overcast, cold days where your system will need a helping hand. This is provided with an electricity boosted or gas booster system.
Boosting using a tankless gas water heater often is the best boosting approach because boosting only happens if hot water is used. With an electric system, the tank is heated as soon as the internal temperature falls.
Retrofitting intended for Photo Voltaic Hot Water
In case your existing hot water system has lots of operative life left or else you've recently bought a gas/electric hot water service:, you'll be able to nonetheless go solar with a retrofit kit!
Hot water and Household Energy Use
Electrical and gas hot water systems account for about 20% of your household's greenhouse gas emissions. By adding a photo voltaic water system you'll cut down these emissions and also save up to as much as 75% of the water heating costs!
Author Resource:-
Solar Choice Australia is based in Adelaide, South Australia can offer you 50 years of experience and knowledge of Solar Hot Water Systems, Renewable Energy sources and all aspects of Solar Power. Contact us for a free quote
![[Valid RSS feed]](http://www.NewAgeLivingArticles.com/images/icon_Rss.png "XML Feed For RSS"){kind=icon}
Category Rss Feed
Print This Article
Add To Favorites
