Morrison tube

Industrial furnaces that do not show color, that is, in which the temperature is below 1200 F (650 C), are commonly called ovens in North America. However, the dividing line between ovens and furnaces is not sharp, for example, coke ovens operate at temperatures above 2200 F (1478 C). In Europe, many furnaces are termed ovens. In the ceramic industry, furnaces are called kilns. In the petrochem and CPI (chemical process industries), furnaces may be termed heaters, kilns, afterburners, incinerators, or destructors. The furnace of a boiler is its firebox or combustion chamber, or a fire-tube boiler s Morrison tube. ... 

Fig. 4.27. Fire-tube boilers with packaged automatic gas, oil, or dual-fuel burners having integral fans. These three-pass boilers have a large Morrison tube into which the burner fires as the first pass (radiation), and two banks of many small tubes (convection) for the second and third passes. Fire-tube boilers are more compact and less expensive than water-tube boilers, but they are limited in steam pressure and size, typically 150 psig (1030 kPa) maximum steam pressure and 33 kk Btu/hr (35 000 MJ/h) maximum input.

Morrison tube = the first pass, usually a large corrugated alloy steel pipe, of a fire-tube boiler. It contains the flame and poc and is surrounded by feedwater that is to... 

Morrison (Ref 1, pp 38-42) described a shock tube (See Fig 1) containing inside a piston which separates two gases of two different states. One section of the tube is closed from the outside forming a reservoir. Assuming that the gas to the left of piston is at a higher pressure than the gas to the right of it, let the piston (starting... 

Fig 3 shows shock tube with a diaphragm and charging equipment such as used by Morrison (Ref 1, p 74) at Univ of Michigan for most of the velocity runs. The principal part of the equipment consisted of a half inch extra-strong commercial pipe. The reservoir and test chamber sections were con-... 

Velocities of detonation were found by recording the time it took for a wave to pass between two points in the tube at a known distance apart. Since the deton wave of the gases traveled at velocities up to 12000 ft/sec, a timer that recorded intervals as small as 75f/secs was necessary if distances betwn probes were to bs 1-2 ft. No known commercial timer of these capabilities was found, therefore one was designed fabricated by Morrison (Ref 1). It was appropriately calibrated... 

Refs 1) R.B. Morrison, "A Shock Tube Investigation of Detonative Combustion ,... 

Morrison, R. B., A Shock Tube Investigation of Detonation Combustion, University... 

Morrison, H. and Malski, R. (1974) Changes in ultraviolet transmission of Coming Code 9700 glass tubing. Photochemistry and Photobiology, 19, 85. 

FIGURE 6-14. Target of a silicon vidicon tube. [From K. W. Busch and G. H. Morrison, Multielement Flame Spectroscopy, Anal. Chem., 45, 719A (1973). Used by permission of the American Chemical Society.]... 

---