Posted on 20 March 2010
Tags: alternate source energy, angle of inclination, demand, humidity, month, PV, PV modules, shade, solar energy, solar panel, solar panel installation, solar panels costs, Solar thermal roof, solar tiles, summer, sun, sunlight, utility bills
We all want to make use of the solar energy, using to power our houses. Although it’s not as simple as just placing some modules on your roof, it’s not very difficult to do either.
The first thing to consider is the direction of your house as every roof does not have the correct orientation or angle of inclination to take full advantage of the sun’s energy.
Ideally, non-tracking PV systems in the Northern Hemisphere should point toward true south, but orientations that face in more easterly and westerly directions can work too, with decreased efficiency howsoever.
Posted on 09 July 2009
Tags: air-source heat pumps, Benefits of Geothermal Heat Pump Systems, Closed - loop geothermal pumps, conventional HVAC systems, corresponding emissions, Design flexibility, Dual-Source Heat Pump, durable, earth-coupled, Efficiency of Geothermal Heat Pumps, EPA, GeoExchange, Geothermal Heat Pump, GHPs, ground temperatures, ground-source, heat pump, heat sink, heat source, highly reliable, Horizontal Ground Loop, humidity, installation cost, maintenance, Open – loop Geothermal pumps, outdoor compressors, reduce energy consumption, Surface Water Loop, Types of Geothermal Pumps, United States, Vertical Ground Loop, water-source heat pumps
Geothermal heat pump is a type of heat pump by which the ground, ground water, or ponds are used as a heat source and heat sink, rather than outside air. The temperatures of ground or water are more constant and as compared to air temperatures they are warmer in winter and cooler in summer. As compared to conventional or air-source heat pumps, geothermal heat pumps operate more efficiently.
Efficiency of Geothermal Heat Pumps
Geothermal heat pumps are sometimes called as GeoExchange, earth-coupled, ground-source, or water-source heat pumps. They have been in use since the late 1940s. As the exchange medium Geothermal heat pumps (GHPs) uses the constant temperature of the earth instead of the outside air temperature.
Read the full story
Posted on 05 June 2009
Tags: air condition, air conditioning equipment, Barometric pressure, chilled-water, Chilled-water and Cooling-tower air conditioning unit, chilled-water pipe, college complexes, cool, cooling tower, degree Fahrenheit, degrees Celsius, different prices and sizes of AC, evaporation temperature, freon gas, huge buildings, humidity, kinds of air conditioners, office, Split-system units, Window type air conditioners
Everyone wishes for a cool and comfortable room when the temperature outside is unbearably hot. And an air conditioner best fulfills this wish. Although many kinds of air conditioners are available in the market, all come in different prices and sizes. Window type air conditioners work better in smaller rooms whereas split and others work well in larger areas.
Another kind is the Chilled-water and Cooling-tower air conditioning unit. As the name suggests, a Chilled-water system used cold water, usually between 40 and 45 degrees Fahrenheit, i.e. 4.4 and 7.2 degrees Celsius. The entire air conditioner is placed on the roof or outside the building. The water is cooled down, piped throughout the building and connected to air handlers as required. The length of the chilled-water pipe can be as long as required if it is well insulated.
Read the full story
