Hvac Chiller System Pdf
Centralised systems use chillers which are basically giant a c units but they work slightly differently because of their size.
Hvac chiller system pdf. Refrigeration and air conditioning systems cover a wide variety of cooling applications using both standard and custom made equipments. The process water is the means by which heat transfers from the process to the chiller. November 1 2017. University of colorado boulder co usa overview system description secondary hvac systems air distribution room diffusers and air terminals duct design fan characteristics air handling units water distribution cooling coils pipes and pumps primary hvac systems electric chillers.
This cool fluid removes heat from the process and the warm fluid returns to the chiller. Some commonly used applications are process cooling by chilled water or brine ice plants cold stores freeze drying air conditioning systems etc. In most process cooling applications a pumping system circulates cool water or a water glycol solution from the chiller to the process. Home pdf download the hvac chiller systems handbook pdf 3 13 2018 03 13 00 pm hvac chillers are devices that remove heat gained by a recirculating water system as it cools a building.
All building need air conditioning. This is because the chilled water system can be networked to have multiple cooling coils distributed through out a large or distributed buildings with the refrigeration equipment chiller placed at one base central location. Air conditioning two general types of air conditioning cooling refrigerant based. Refrigeration cycle moves heat from one space indoors to another outdoors refrigerant evaporates and condenses continuously within cycle refrigerant has a low boiling point making it ideal for hvac systems similar to car ac system.
May 1 2019 rev. For smaller buildings this can be provided by a c units but once the building reaches a certain size it becomes cost effective to use a centralised system. The chilled water system is also called central air conditioning system. Each building has its own unique set of conditions required to ensure the health comfort and productivity of its occupants.