Tower specification

Equipment Constraints These are the physical constraints for individual pieces of eqiiipment within a unit. Examples of these are flooding and weeping limits in distillation towers, specific pump curves, neat exchanger areas and configurations, and reactor volume limits. Equipment constraints may be imposed when the operation of two pieces of equipment within the unit work together to maintain safety, efficiency, or quahty. An example of this is the temperature constraint imposed on reactors beyond which heat removal is less than heat generation, leading to the potential of a runaway. While this temperature could be interpreted as a process constraint, it is due to the equipment limitations that the temperature is set. 

In air conditioning circles, the tower normally represents the final heat sink in a turnkey package which would include compressors/condensers, pipework, ducting, fans, pumps, control gear, etc. Where consultants and experienced contractors are concerned, the tower specification is well defined and the purchases based upon economics related to efficiency. 

The group leader has asked you to determine the optimum size of the SO, absorption tower. Specifically, he has asked you to determine the height and cross-sectional area of the optimum absorption tower and to present your recommendations in the form of a formal report. 

StOIJB WBBSTER ENGOOEEfilNG COIU OIIATION SUBBL.E TOWER SPECIFICATiON... 

Case 6 Citicorp Center Tower Specific ethical issues include ... 

Spencer, P. A. and G. H. N. Towers, Specificity of signal compounds detected by Agrobacterium tumefaciens. Phytochemistry, 27, 2781-2785 (1988). 

The calculations outlined in this subsection are based on having predetermined the maximum temperature of the oil leaving the furnace. Occasionally, one may define the thermal basis as the flash zone temperature. If this is the basis, the procedure described in the chapter covering the vacuum tower-specifically Figure 3.8—will apply for flash zone calculations. 

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