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Technology for improving cooling system performance
Refrigerant subcooling is proving to be a reliable energy-saving alternative to increasing the cooling capacity of air conditioning systems in many facilities. The technology modifies a standard direct-expansion, vapor-compression refrigerant system with the addition of a heat exchanger in the liquid line of the system. Utilizing several designs, water cooled, hybrid subcooling, and modified coils can reduce energy consumption on refrigerant and Heating Ventilation Air Conditioning systems.
The subcooling technology not only provides for additional cooling capacity but can also reduce compressor power, leading to higher overall system efficiency. Besides saving energy, subcooling benefits the environment through reduced emissions of sulfur and nitrogen oxides and carbon dioxide associated with power generation.
Analyses have shown the subcooling technology to be technically valid and economically attractive and reduces high energy consumption.
A refrigeration system including a compressor, condenser and evaporator utilizes an evaporative subcooler (evaporative hybrid subcooler) (evaporative fluid subcooler) downstream of the condenser for subcooling the refrigerant for increased system efficiency.
The strategic placement of the subcooler for cooling in the liquid zone allows the operating pressure and temperature of the refrigeration system to be reduced and the refrigerant in the system to provide the greatest cooling effect in the evaporator.
Additionally several components may be added, such as a counterflow heat exchanger is provided in the liquid zone adjacent the subcooler in order to provide additional sub-cooling and also provide for warming of the cooling water used for evaporative cooling or pre-cooling make up air.
Evaporative heat exchangers are well known for cooling. Especially in desert areas where the humidity is low, evaporative coolers have been the utilized most, but installed anywhere it will have a savings, greater than any standard HVAC Air cooled unit, or standard roof top refrigeration unit.
Designs use water to sprayed, in a tower, over a especial designed coil so that the surrounding ambient air or the fluid in the coil is cooled. The cooling is highly efficient since the latent heat of evaporation of the water droplets is substantially more effective to absorb heat than the surface cooling effect of water or air alone can be.
A hybrid subcooling tower is available to retrofit in an existing system and is particularly adapted for increasing efficiency in high and low capacity use situations, Grocery store , HVAC, Geothermal , and Big box warehouse industry.
All sites are analyzed then a solution is designed to achieve the highest energy savings incorporating existing refrigerant and hvac systems.
Other considerations in word searches:
Evaporator – Desuperheat – Condensing – Subcooled – Evaporating – Condenser – Condensing -
\Evaporating – Evaporative Fluid Subcooling – Geothermal Loop Cooling – Refrigerant Subcooling