The questions and answers below are primarily for HVACR Contractors and Engineers seeking detailed information about the GEO Max® Geothermal Efficiency System. Consumers who are willing to “brave” the large amount of technical information are also invited to learn about the attributes, benefits and applications of the GEO Max® system. There are many energy efficient products on the market today, but one must be careful to choose the ones with the best performance from an economic, green/sustainability and high performance point of view. The GEO Max® system is one of the best for many reasons, as explained below.
The GEO Max® system applies ground source fluid or other cool source fluid to cool the liquid refrigerant coming out of an air cooled condenser and then reuses that fluid to cool the hot gas refrigerant coming out of the compressor to enhance the refrigerant condensing cycle to improve A/C system capacities and efficiencies by as much as 50% or more. A standard geothermal unit uses ground source fluid to remove all of the heat from the refrigeration condensing cycle. Because the GEO Max® is only removing less than 16% of the total heat of rejection but is accomplishing similar refrigerant conditions as the full geothermal system and because of the much higher temperature differential of the return fluid to ground source temperature, it therefore uses only 1/10th the water flow and ground loop requirements of a standard geothermal unit.
This is absolutely not true and is based on a lack of knowledge of legislation that protects the consumer from frivolous warranty voidances by manufacturers. The primary legislation regarding this issue is known as the “Magnuson-Moss Warranty Act.”
A product is deemed “green” when there is carbon dioxide reducing energy savings that reduces dependence on fossil fuel. In fact, because of the increased efficiency produced by the GEO Max® system, it reduces CO2 production by an average of 5 to 7 tons per year for a typical 10 ton air conditioning or heat pump unit. The 5 to 7 tons of CO2 saved is equal to the CO2 emission for a car that consumes 500 to 700 gallons of gas per year.
The GEO Max® system is engineered for a very low refrigerant friction related pressure loss and the line sizes are engineered for low friction related line loss as well, so that the benefits of the GEO Max® system are not offset by any friction related operational problems, even when the GEO Max® system is not operating while the A/C system is operating.
When a HVACR system has a high friction related pressure loss (too small a refrigerant line size for example), even though a pressure drop is seen at the liquid line port, the pressure seen by the compressor is actually higher, while reducing pressure due to better heat transfer actually results in a lower pressure at the outlet of the compressor. Lower head pressure at the outlet of the compressor results in increased efficiency, whereas increased head pressure at the outlet of the compressor results in decreased efficiency.
City or well water can be utilized directly, but well water (or a closed loop system) is the preferred geothermal supply, because of the cost of city water. Periodic descaling would be required if city or well water were to be used.
When a system produces more capacity, the run time requirement of a system decreases, resulting in the A/C system being off more of the time.
No, because the increased capacity comes with an increase in dehumidification of roughly 35% due to a unique reduction in flash gas loss in the evaporator due to the increased sub-cooling of the refrigerant. This results in an average colder evaporator coil, which in turn results in better dehumidification.
Every degree of sub-cooling results in an increase of system capacity of approximately 1¼%. This is one of the primary reasons why water cooled (or geothermal) systems are so much more efficient than air cooled systems.
Rapid de-superheating of the refrigerant by means of water cooling results in a lower condensing head pressure and a cooler operating compressor. Lower head pressure results in lower power consumption by the compressor, and a lower compressor operating temperature results in a longer operating life expectancy for the compressor. This is another reason why water cooled (or geothermal) systems are so much more efficient than air cooled systems.
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