Recirculating chillers are used to keep a component such as laser head, detector panel, or other temperature sensitive device at a constant temperature and/or to remove waste heat and prevent overheating of critical components. When selecting a chiller , several factors should be considered that could affect cooling capacity. These factors include ambient air temperature or facility water temperature, chiller set temperature, process fluid, chiller maintenance, and more. Chiller manufacturers generally provide cooling capacity ratings based on a 20°C water delivery temperature and a 20°C ambient temperature. However, what happens if the ambient temperature is higher or lower than 20°C? What if the coolant is supplied to the process at 5°C instead of at 20°C? What if a coolant other than water is used? How do all these variations affect the cooling capacity of a chiller... Full Article