Determine friction factor Tees branch Surface Roughness Pipe Class Reducers Valves Entrances and Exits Velocity Selection of Pipe Class Design Pressure Support distances for Steady State deflection Design Pressure Wear from abrasive Unsteady State slurries Vacuum Conditions Standardization on Industry Application site & Environment Risk Aboveground or Likelihood buried design Consequences Responsibility Selection of Pipe Class-Risks The Owner wants a reliable system at lowest capital and operating cost for the life of the plant, delivered on time The Contractor wants a competitive edge by using a lower class of pipe, no failures and completed on time
As well as nontoxic salt, sugar, or alcohol solution in using the latent heat absorbed by the boiling water, and a means of conveying the wrapped liquid, sensible heat is absorbed by the result- meat through the tank. The freezing process ing cold gas. Due to very low operating tem- is often completed in an air blast system. Ice peratures and high surface heat transfer slurries are being considered as an alternative coefficients between product and medium, to conventional immersion liquids. Such cooling rates of cryogenic systems are often binary systems are described in the scientific substantially higher than other refrigeration literature as flow ice, fluid ice, slush ice, or systems. Figure 5.1. Vertical plate freezer for freezing of blocks of boned meat. 114 Chapter 5
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