The design of the Lightstream Turbo evaporators provides optimum system efficiency at both full and partial load operation. The tubes in flooded evaporator are fully immersed in liquid refrigerant and enable a smaller approach temperature between the refrigerant temperature in its shell and chilled water temperature in the tubes to be achieved. With a flooded evaporator, the compressors operate at higher saturated evaporation temperatures and generate more cooling capacity with the same power input.
GENERATE ENERGY SAVINGS ALL YEAR ROUND
Lightstream Turbo chillers can supply chilled water with relatively high temperatures, thus maximizing the amount of time the system can produce chilled water without running the mechanical cooling mode. Compared to air-cooled models, Lightstream Turbo equipped with a free cooling system generates energy savings of up to 50% and returns investments within a short timeframe.
When running in concurrent free cooling and mechanical cooling mode, the control system continually monitors the condensing temperature and keeps it within the scope of the compressor to allow the maximum possible fan speed and achieve the maximum free cooling. During periods when the fan speed has to be reduced to a minimum, the chilled water temperature is controlled via motorized valves.