73 Water-Cooled Chiller An electric chiller generates chilled water that is then circulated through a building to cool spaces. A centrifugal chiller is a large heat pump that cool a refrigerant via the vapor-compression cycle. During the process, the chiller produces waste heat that needs to be rejected. Since chiller are often located in the interior of a building (see Fig 6.18) the rejected heat is often pumped to a rooftop cooling tower and transmit it to the ambient air via evaporative cooling. Table 6.9 Specifications Fuel Source Electricity Produces Chilled water Efficiency COP = 4.0 – 6.0 Other Required Equipment Cooling towers Back to: VAV System with Hot Water Reheat FCU with Dedicated Outside Air
RkJQdWJsaXNoZXIy MjA2MzQ5MA==