The Site location was an industrial facility located in the greater South Los Angeles region that manufactured chemicals for local petrochemical and other industrial operations from 1919 through late 1990’s. Refrigerants were initially produced in 1964 including chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) such as trichlorofluoromethane (R-11), dichlorodifluoromethane (R-12), chlorodifluoromethane (R-22), and 1,1-dichloro-1-fluoroethane (R-141b). Raw materials for CFC/HCFC production included hydrofluoric acid, carbon tetrachloride, chloroform, 1,1,1- trichloroethane (1,1,1-TCA), and antimony pentachloride catalyst.
Advantages of Low Charge Ammonia Systems for Operator Training & Regulatory Compliance
Operator training has become one of the most prevalent areas of deficiency in Process Safety Management (PSM) Programs for refrigeration systems today. High turnover in the refrigeration industry coupled with high complexity system designs and an increasing void of technicians trained in foundational trades are the perfect storm for compliance challenges among operators of large refrigeration systems today. Packaged systems provide many features, attributes and documentation that will satisfy the requirements...
Water: the natural choice - when it comes to moving BTUs around a building, nothing beats water
A Modern hydronic heating and cooling system is the safest and the most efficient way to keep your buildings comfortable. Independent industry studies prove that when compared side by side, hydronic-based systems provide the best return on investment. They provide substantial increases in the Future Value of a building when compared with "refrigerant" systems.It can take as much as 40 percent of the total electrical demand for an air-based cooling system to move BTUs around a building.Because refrigerant systems...
Water: the natural choice - safe, natural water delivers better comfort, lower cost
Using water to heat or cool your building is the safest alternative, as hydronic systems can be installed and serviced by any licensed professional contractor. Because other refrigerants are toxic, they must be installed by specially trained technicians. You`ll see those same technicians on expensive service calls installing factory replacement parts because components are not interchangeable with other brands or with different systems offered by the same manufacturer.Many chilled water systems employ chillers...
ANSI/AHRI standard 420-2008 for fan and coil evaporators - benefits and costs
AbstractFan and coil evaporators as used in the industrial refrigeration industry can be certified for performance per ANSI/AHRI Standard 420-2008, Performance Rating of Forced-Circulation Free-Delivery Unit Coolers for Refrigeration. This paper will explain how the standard works and illustrate the costs related to evaporators that may not meet the performance criteria of the standard.The StandardANSI/AHRI standards benefit the HVAC and Refrigeration industry by ensuring the performance and efficiency of manufactu...
Total heat versus sensible heat evaporator selection methods & application
ScopeThe purpose of this paper is to provide specifying engineers, purchasers and users of evaporators in industrial refrigeration applications with an explanation of “total heat” versus “sensible heat” selection methods and how the method used can impact coil capacity, fan horsepower, physical size and first cost of the equipment.This paper provides technical information for engineers, purchasers and users; such that, they have a better understanding of when evaporator selections are...