LACEY procedure

The procedure is called the LACEY procedure (not because it is full of holes, as claimed by some ) from its developers Luyben, Alatiqi, Chiang, Elaahi, and Yu. The steps are summarized below. Each step is discussed in more detail in later sections of this chapter. 

A procedure for calculating the density of foam at a given depth is as follows. This procedure uses a method that Sage and Lacey (9) developed to calculate gas compressibilities. The first step is choosing an incremental depth over which the densities will be calculated. The smaller the increment, the more accurate the calculation however, the more steps are necessary to reach completion over the same depth. Temperature is calculated using T = 10 °C + 3 °C/100 m. The compressibility (z) can then be calculated as follows ... 

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