Consider an HVAC or water heating unit that will reduce by 20 to 50% of the energy bills of a building while reducing carbon dioxide and CO2 emissions. Imagine a system that’s more reliable, 2.5 to four time more effective, offers the lowest cost per lifecycle and an excellent degree of the design flexibility.
Where can you locate this kind of system? It’s no more than under your feet. Earth is an enormous energy storage device that can absorb 47% of sun’s energy. In combination with the continuous rising flow of warmth that flows from the earth’s hot red interior and the results are geothermal power heating & cooling. Geo means earth, Thermal means thermal = heat. This renewable, clean energy is stored in large quantities of rock within the top six mile of Earth’s crust. In almost every state in the Union there is enough geothermal power to cool, heat and supply hot water to every kind and size of structures.
The temperatures near the surface of the earth remain pretty constant throughout the year – warmer than the outside air in winter and cooler than air outside in summer. Geoexchange systems (or ground-coupled heat pumps) take the heat of the earth during winter and transfer it into the interior of the building. In summer, the process reverses by drawing the hot air from inside the building before it is transferred into the ground. Nearly all geoexchange systems available on the market offer cheap hot water, improving their efficiency
According to EPA and DOE Geoexhange systems are among the most efficient in terms of energy efficiency, environmental efficient and clean system for cooling space that are available. They rate them 40 percent more efficient than air source heat pump 48% higher than gas furnaces, and 75% more efficient that oil-fired furnaces. Although geoexchange units require an energy source, they offer higher performance in terms of energy consumption. When in warming mode, the unit will transport at the very minimum three solar energy units from the earth for each unit of power used.
There are three major elements of a geoexchange the ground loop as well as the unit for heat pumps, and the channel for distribution of heat.
In most homes connecting to the geothermal source of heat is done through a closed loop’ arrangement. A collection of flexible high-density polyethylene pipes is installed underneath the earth in vertical trenches or horizontal holes. A liquid (water or a mix of water and antifreeze) circulates in the loops absorption the heat from the earth when it travels through the pipes before transferring them to the unit for geoexchange within the building. When the cooling mode is on the hot air is attracted by the unit, then transported into the loops, and is absorbed by the earth around it. Following installation, the trenches or holes are filled with sand, and then covered with native grass, landscaping or even parking spaces.
Horizontal trenching is generally the most economical option in situations where there is enough space and trenches are simple to dig. Vertical drilling is utilized when the is not large enough or the soil is too low in depth for trenching horizontally. The loops must be constructed by professionals who comply with the procedures developed through the International Ground Source Heat Pump Association (IGSHPA) and who are approved by IGSHPA or have proof of similar training through the manufacturer or other reputable authorities.
Geoexchange Heating Pump
The most popular unit is the single package water-to air heat pump that combines heating exchangers, refrigerant pipes and control valves, as well as air coil, compressor and fan, all in a single enclosure, roughly similar to a gas furnace. The single-package design has an advantage over other models, such as the “split” system used for air-source heat pumps. There are a variety of models, brands, and manufacturers of heat pumps on the market. They are evaluated with the Air Conditioning and Refrigerant Institute by their coefficients of Performance (heating) and Energy Efficiency Ratio (cooling). The ENERGY STAR accredited geoexchange pumps use 40% to 60% less power than the standard heat pump.
Heat Distribution Channel
Conventional ductwork is usually utilized to spread the cooled or heated gas from the heating system across the entire building. A properly designed geoexchange system gives the building’s inhabitants to control temperature through zones or rooms and with the best humidity levels. The system does not require a chimney or flue. It does not require rooftop equipment or chilling towers to add additional weight, or hinder the possibilities of alternative roof styles like vegetated roofing. The compact size of the structure requires less storage space inside. The heated water flowing through the system could be used for other building applications, like heating spas and swimming pools and melting sidewalks as well as parking lots ice, and snow. They can even supply water for car washes!
The most extensive commercial geoexchange system around the globe is that of the Waterfront Office and Galt East Hotel complex located in Louisville, Kentucky. The 1.7 million square feet complex has an enormous 2,700-ton capacity geoexchange system at the cost of $1,500 for each ton best air humidifiers. The project director estimates that a traditional HVAC system using cooling towers, centrifugal chillers and pipes that are insulated would priced between $2,000 and $3,000 per ton. Geoexchange Geoexchange technology, the company was able to free up 255,000 square feet of commercial space that could have been used to house traditional equipment rooms. The energy savings can be estimated at $25,000 per month, while also allowing an individual temperature control for each suite or room. Maintenance costs for the year are around $5 per sq. foot as opposed to significantly higher costs for conventional HVAC systems.…