Plant refrigerant

Utilities and yard services (boiler plant, refrigeration, compressed air, water supply and treatment, effluents, fire protection, yard piping, yard electrical, yard materials handling, raw and finished-product storage)... 

Kiihl-anlage, /. cooling plant, refrigerating plant, -apparat, m. cooling apparatus cooler refrigerator condenser, -bottich, m. cooling tub, cooler. 

Picciotti, M., Optimize Ethylene Plant Refrigeration, Hydrocarbon Processing, V. 58, p. 157, May (1979). 

Ni-Si recovery of HP Processes involving cone. H2SO4 processes. Sulphur stripping columns. Distillation columns containing acidic chlorides. Handling acid sludges processes impellers, propeller shafts, fasteners. Demisters in desalination plants refrigerating brines. Salt production. Evaporators steel... 

Refrigeration package system cost. The cost curve in Fig. 8.14 is based on a -20°F refrigerant outlet temperature, which is the temperature of the majority of process plant refrigerant levels. Higher-temperature... 

Cross-flow over tube banks is commonly encountered in practice in heal transfer equipment such as the condensers and evaporators of power plants, refrigerators, and air conditioners. In such equipment, one fluid moves through the tubes while the other moves over the tubes in a perpendicular direction. 

In order to calculate the refrigeration work requirements of oxygen plants, it is necessary to focus attention on specific refrigeration cycles. Two Claude type cycles are used in this report. One is a low pressure cycle in which all of the process air is used to produce the refrigeration. The expander exhaust is at 6 atm. Such a system involves about the lowest pressure that would be used in any air plant refrigeration system. This cycle is shown in Figs. 1 and 2. 

Mollier chart The graphical representation of the thermodynamic properties of a pure substance with enthalpy on the y-axis and entropy on the x-axis. Other properties are also included on the chart (see Fig. 29), including pressure and temperamre, and the critical point. They are used to visualize thermodynamic cycles such as in power plants, refrigeration, and air conditioning. It is named after German physicist Richard Mollier (1863-1935). 

This chapter assumes that the reader has completed a course in basic mechanical engineering (ME) thermodynamics. It presents only a review and summary, to be referred to later in the text. A basic ME thermodynamics class is mostly about devices using pure substances, such as steam power plants, refrigerators, heating systems, and internal combustion engines (treated by the air standard Otto cycle, which allows one to use pure-substance thermodynamics). Chemical engineering thermodynamics extends that approach to include devices treating mixtures (e.g., all separation processes like distillation or crystallization) and chemical reactors. The principles are the same, but the details and the viewpoints are often different. 

Tables of thermodynamic properties are always in terms of specific properties (properties per Ibm, or kg, or per mol). For systems that involve only one chemical species (e.g., steam power plants, refrigerators, the other systems in ME thermodynamics), the equations and tables are all per unit mass (Ibm or kg). However, in chemical engineering thermodynamics, which deals with mixtures and with chemical reactions, we most often choose our unit of mass as one mol or one pound mol.

Handbook of Instrumentation and Controls A Practical Design and Applications Manual for the Mechanical Services Covering Steam Plants, Paver Plants, Heating Systems, Mr Conditioning Systems, Ventilation Systems, Diesel Plants, Refrigeration and Water Treatment, McGraw-Hill, New York, 1996. 

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