Patent attributes
Methods and apparatus for latent heat extraction of an air stream eliminates the need for recirculation pumps and uses the pressure in the chilled water supply to the primary chilled water cooling coil to motivate the water through the precooling and reheat coils of a run-around system. The energy transfer lowers the air temperature entering the primary coil so that the primary coil can provide a greater amount of latent heat extraction from the air stream. Both the precooling and the primary coils can share the primary cooling function for periods of peak cooling demand when precooling is not required thereby reducing the required primary cooling coil size. Enhancements combine the function of the precooling coil and the primary cooling coil into a single coil which is specially circuited for installation in the space of a standard chilled water coil eliminating the need for larger equipment rooms.
