8.4(a) is a variant of the calandria evaporator in which the steam chest is contained in a basket suspended in the lower part of the evaporator, and recirculation occurs through the annular space round the basket. Figure 8.4 Evaporators (a) basket type (b) long tube (c) forced circulation.all slender vertical tubes may be used for evaporators as shown in Fig. 8.4(b). The tubes, which may have a length to diameter ratio of the order of 100:1, pass vertically upward inside the steam chest.
The purpose of mitosis is cell regeneration, growth, and asexual reproduction,while the purpose of meiosis is the production of gametes for sexual reproduction. Mitosis is a single nuclear division that results in two nuclei that are usually partitioned into two new daughter cells. The nuclei resulting from a mitotic division are genetically identical to the original nucleus.
Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.