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Chilled water is a commodity used to cool a building's air and equipment, especially in situations where many individual rooms must be controlled separately. Learn about the types, uses, advantages and disadvantages of chilled water cooling, and the equipment and processes involved.
A chiller boiler system is a hydronic system. It uses water instead of air to heat and cool a structure. A properly designed hydronic system is usually more efficient than a standard forced air system. [1] Chiller boiler systems use radiant heating and cooling or fan coil systems to condition a home or business. This allows for multiple zones ...
Learn about the most widely used method for air conditioning and refrigeration, which involves a circulating liquid refrigerant and four components: compressor, condenser, expansion valve, and evaporator. Find out the types, advantages, and disadvantages of different refrigerants and their impact on the environment.
Learn about the system dedicated to the analysis of steam or water in power stations to ensure the water quality and prevent corrosion. Find out the aspects of sample extraction, transport, conditioning and analysis, and the standards and certifications involved.
A cooling tower is a device that rejects waste heat to the atmosphere through the cooling of a coolant stream, usually water. Learn about the different types of cooling towers, their applications, and their history from this Wikipedia article.
A chiller is a machine that removes heat from a liquid coolant via a vapor-compression, adsorption or absorption cycle. Chillers are used for air conditioning, industrial and process cooling, and can have different types of compressors and cooling methods.
In a variable primary chilled-water system, the design flow rate is determined by the water flow velocity in the tube of the coils. At typical conditions, 6–7 feet per second (1.8–2.1 m/s) Maximum 12 ft/s (3.7 m/s) Minimum 1.5 ft/s (0.46 m/s) (based on a Reynolds number of 7500) Minimum flow is typically 50% or less of the design flow. [1]
Learn about the thermodynamic principles and types of heat pump and refrigeration systems, such as vapor compression, absorption, gas and Stirling cycles. See diagrams, equations and examples of how heat is transferred and work is used in these cycles.