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CPVC sprinkler pipe inside a firestop mock-up. Chlorinated polyvinyl chloride (CPVC) is a thermoplastic produced by chlorination of polyvinyl chloride (PVC) resin. CPVC is significantly more flexible than PVC, and can also withstand higher temperatures. Uses include hot and cold water delivery pipes and industrial liquid handling.
As a thermoplastic, PVC has an inherent insulation that aids in reducing condensation formation and resisting internal temperature changes for hot and cold liquids. [ 35 ] Applications
In traditional systems, the refrigerated water supply temperatures typically vary between 6 and 7 °C and cold water is in fact necessary to generate cold air that compensates for the rise that occurs on the floor of the data center, since the cold inlet air and the hot exhaust air interact.
This increase in elemental chlorine content contributes to CPVC's increased expression of chlorine-based characteristics, such as chemical durability, resistance to acids, bases, and salts; susceptibility to ammonia-based compounds, aromatics, esters, ketones; [9] chemical stability; heat energy transfer resistance. CPVC is commonly used in ...
The efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER), which is defined by the Air Conditioning, Heating and Refrigeration Institute in its 2008 standard AHRI 210/240, Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment. [61]
Editor's Note: This page is a summary of news on the bitter cold and snow for Monday, Dec. 2. For the latest news, view our story for Tuesday, Dec. 3. Pounding snow and bitter cold continued their ...
A chilled beam is a type of radiation/convection HVAC system designed to heat and cool large buildings through the use of water. [1] This method removes most of the zone sensible local heat gains and allows the flow rate of pre-conditioned air from the air handling unit to be reduced, lowering by 60% to 80% the ducted design airflow rate and the equipment capacity requirements.
AccuWeather's Pastelok agreed with this perspective, noting that the Siberian air stayed "fresh" and cold on its journey over the top of the globe and remained cold all the way down to the ...