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. . 1111 <br /> owl pug, <br /> x + k <br /> C <br /> rwr <br /> Coca-Cola Enterprises-West <br /> USTEC job No. 90054.03 <br /> 5.4.5 Inlet and Outlet Pleflownums <br /> The inlet and. outlet plenums are designed to provide thally ste m°iffenled cient carbon reel steel The <br /> and out of the porous bed and are constructed of extern <br /> plenum walls are internally insulated. <br /> 5.4.6 Bed Casin Insulation <br /> The bed casing is internally insulated with 8 to 12 inches of compressed fiber which is <br /> i <br /> k. temperature rated at 2,600°Fahrenheit. The insulation is located between the bed material and <br /> w.. the using wall to assure that the insulation cannot be displaced,causing hot spots <br /> e <br /> 5.4.7 Casin Access O enin - <br /> ' The tog surface of the upper plenum is constructed so that access to the heat transfer media is <br /> i <br /> available. <br /> 5.4.& In-Bed Heatin Elements <br /> of the bed for tol coverage and require a <br /> In-bed heating elements are located near the cue ele:.ments are made from a high temp ratture <br /> ;x no volt,three-phase.60 hertz power supply <br /> alloy which can withstand wide temperatures of up to 2,550°Fahrenheit. When heated, the <br /> resistance heating elements form a self-protective oxide layer on their surface. <br /> 5,4,9 Process Flow Control Valves <br /> ,. <br /> t <br /> trol valves which are used to reverse the <br /> The unit contains four pneumatically actuated con <br /> direction of flow of the process stream through the combustion bed. <br /> 5.4.10 5 stern Controls and Instrumentation <br /> A control panel is included for the unattended,automatic operation of the unit. The panel meets <br /> all electrical codes and is capable of shutting down the system in the event of the followi�tig <br /> VI conditions: <br /> o Bed temperature below 1,800°Fahrenheit. <br /> w <br /> 22 <br />