Refrigeration industry

A leader in the refrigerants industry, we manufacture and supply customers with economical chlorofluorocarbon (CFC) replacements and non-ozone depleting hydrofluorocarbon (HFC) refrigerants for automotive, home, commercial and transportation uses. In the Americas and Asia, you can find these products under the Genetron name and in Europe and the Middle East under Honeywell Refrigerants. 

A turboexpander generates the deep, low-temperature refrigeration industrially used for gas separation and liquefaetion, and a number of related purposes. It does so by the meehanism of eonstant entropy expansion, together with the produetion of power (a byproduet). The power is generated from the deerease in enthalpy of the stream itself. A turboexpander is a high effieieney turbine with numerous speeial features. These features make it eonveniently usable and reliable for small volumetrie flows at the low temperatures (and often rather high pressures) usually found in these applieations. 

Currently, CEE offers programs for air conditioners, heat pumps, clothes washers, dishwashers, refrigerators, industrial motors and drives, gas furnaces and boilers, lamps, light fixtures, and transformers. 

Figure 11-20. Sectional view of lithium bromide absorption refrigeration industrial unit. (Used by permission 1956. Carrier Corporation, a United Technologies Company.)...

The present-day food industry is almost totally dependent on refrigeration in one form or another, to manufacture, preserve, store and bring the product to the point of sale. The few examples chosen in Chapters 14-18 indicate the general principles. The history, development and current practice of refrigeration of foodstuffs is largely the history, development and current practice of the refrigeration industry itself. 

Home refrigeration got a slower start than did air-conditioning. But auto engineers, who were experienced with mass producing and advertising consumer products, finally convinced the refrigeration industry to switch to... 

To help soldiers keep their aircraft, barracks, tents, foxholes, and forest areas clear of malarial mosquitoes, the refrigeration industry and the U.S. Department of Agriculture developed an aerosol gun that sprayed a mixture of DDT, pyrethrum, and Thomas Midgley, Jr. s Freon 12 (Chapter 6). The insect bomb became so popular that it launched the postwar aerosol industry. 

Kettering file 17-38. Source for refrigeration industry s desire for air-conditioning, not refrigerators plots of boiling points. .., and God s edict in Genesis. ... 

Organic Fluorides as Refrigerants. Industrial and Engineering Chemistry. 22,... 

Two-phase flows containing other types of fluids of interest are those of helium and refrigerants. The former fluid is used for cooling different superconductivity devices, while the latter are used in the refrigeration industry. The pressure drop in a two-phase flow of helium in a tube of 1.6 mm (0.06 in.) I.D. under adiabatic conditions and with heat supply were reported by Deev et al. (1978). They indicated that although the actual measured AP (at P = 1.0 to 1.8 X 10s N/m2) differed... 

The three commonly used recuperative flow-type heat exchangers in the power and refrigeration industry are parallel-flow, counter-flow, and cross-flow heat exchangers. Consider the case where a fluid is flowing... 

To aii regarding reiays The reason i am particuiariy interested is that the relays suggested for use are the same types we supply to the refrigeration industry. 

Perhaps this is an opportune time to cite a case history, which I was involved in, where processability was a key element of an important new product development program. Several years ago a few companies in the refrigeration industry were interested in improving quality and reducing costs and considered expanding the use of plastics to realize this objective. These manufacturers expressed an interest in ABS, one of the polymers Uniroyal... 

Although the technological basis of all fluorine-containing plastics and most elastomers continues to be the free radical polymerization of fluoroolefins, which themselves are based on the vastly greater fluorocarbon refrigerant industry, important advances have been made in the past two decades These include primarily the production of polymers that are more resistant to degradation by heat, oxidation, bases, and solvents, as well as polymers that are more easily processable, that is, able to be converted mto their final forms for use, whether by thermoplastic or thermoset processes [1,2,3,4]... 

Inhalant abuse can also be a hazard in some occupations. People who work in the refrigeration industry may abuse Freon, hydrocarbons used in refrigerants and people working in medical fields may abuse nitrous oxide. A 1979 study, Abuse of Nitrous Oxide, published in Anesthesia Analgesia, found that 20% of dental and medical students had abused nitrous oxide. 

Figure 8 Spiral heat exchanger for the refrigeration industry. (Courtesy of Spirec.)... 

Fluoropolymers represent a rather specialized group of polymeric materials. Their chemistry is derived from the compounds used in the refrigeration industry, which has been in existence for more than 60 years. In the 1930s, efforts were made to develop nontoxic, inert, low boiling liquid refrigerants mainly for reasons of safety. The developed refrigerants based on compounds of carbon, fluorine, and chlorine, commonly known as freons, quickly became a commercial success. Eventually, they also became widely used as aerosol propellants. 

Midgley, Thomas, Jr., and Henne, Albert L. (1930). Organic Fluorides as Refrigerants. Industrial and Engineering Chemistry 22 542-545. 

In the household-refrigerator industry, however, the one-shot process employing crude TDI (which has a lower percent NCO and contains oligomeric compounds, such as isocyanurate- and carbodiimide-types of oligomers) is still widely employed because of its low cost. 

---