The ConDex System offers many competitive
advantages over direct contact "spray tower / scrubber" types of condensing
heat recovery systems, such as:
The ConDex Systems can produce much higher recovered temperature returns on heated
fluids, thus recovering much more energy. Because the temperature rise of the
liquid being heated in the ConDex system is not limited by the dew point of the
exhaust gas, the ConDex System is much more effective than competing designs.
Typically, a gas-fired boiler will have an exhaust gas dew point of 135°F,
thus limiting the recovery temperature for heated water from a direct contact
style system to 130 - 145°F. Compare this to the ConDex system's ability to
heat the same volume of water to 200°F +, and it is easily seen how the ConDex
System can recover much more energy.
Unlike the direct contact spray tower systems, the ConDex unit does not contaminate
the process water with the products of combustion. In the ConDex system only the
condensed water on the outside of the tubes (typically 2 - 20 GPM of water) absorbs
contaminants through contact with the flue gas. This eliminates the requirement
for the use of secondary plate & frame heat exchangers, thereby eliminating
the loss in heat and efficiency associated with the direct contact style systems.
The costly chemical treatment systems associated with direct contact spray towers
are also not required with the ConDex System either - another big savings!
Due to the unique ability of the ConDex System to provide everything from low-grade
to high-grade heat, it can also provide tremendous savings by using recovered
energy from flue gases for absorption chillers in refrigeration or air conditioning
applications!
Please refer to our Case Histories to see real-life examples of the exceptional
capabilites of the ConDex Energy Recovery & Pollution Control System.