Evaporative cooling design guidelines cedengineering. Power plant cooling and associated impacts the need to modernize u. With respect to drawing air through the tower, there are two types of cooling towers. There are two basic types of evaporative air coolers eacs. This type of cooler often called a swamp cooler uses a blower to force air through a permeable watersoaked pad as illustrated in fig. The six basic types of liquid cooling systems compressed. Warm, moist air naturally rises due to the density differential compared to the dry, cooler outside air. The increase in temperature across the greenhouse at plant level is most. Power plant cooling system overview for researchers and. Plate types consisting of a series of parallel plates that provide paths for the steam and the cooling water. Design guide for heating, ventilating, and air conditioning systems. The current definition of the evaporative cooling efficiency. Types and performance evaluation, efficient system operation, flow. Evaporative cooling design guidelines manual iv this report by nrg engineering is funded by the new mexico energy minerals and natural resources department, 1220 south st.
Power plants and protect our water resources and aquatic ecosystems pdf. How the different types work and comparision of design with cfd, crac units, hot and cold aisle, hot aisle containment, cold aisle containment, free cooling, evaporative cooling, chillers, cooling towers, central plant. An evaporative cooler is a device that cools air through the evaporation of water. In the counter flow induced draft design, hot water enters at the top, while the air is intro. Water can absorb a lot of heat without changing phases, allowing it to remove heat. Cooling towers are a very important part of many chemical plants. For cooling its condenser, steam power plants use basically two types of cooling. This report was prepared as an account of work sponsored by an agency of the state of new mexico. There are many different styles of evaporative coolers. This evaporative cooling design guidelines manual for new mexico schools and. Evaporative coolers, often called swamp coolers, are cooling systems that use only water and a blower to circulate air. Evaporative cooling design guidelines ced engineering. An indirect drycooling system was installed at the 6 x 686mw power plant in kendal, south africa. In this cooling system design, water is circulated from a standard condenser.
Pdf analysis of the evaporative towers cooling system of a coal. Direct contact types where the cooling water is sprayed directly into the steam. In summary, evaporative cooling is the process of removing heat from a surface due to the evaporation of water. In this type of system your plant has an abundance of some type of cooling liquid already available but you do not want to provide this coolant to the compressor. As the air passes through the pad, it is filtered, cooled, and humidified.
The location of evaporative cooling equipment is an important. Evaporative cooling differs from typical air conditioning systems, which use. Evaporative cooler an overview sciencedirect topics. Data center hvac cooling systems the engineering mindset. When warm, dry unsaturated air is pulled through a water soaked pad, water is evaporated and is absorbed as water vapor into the air.