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2. Nowotny phase - Wikipedia

   en.wikipedia.org/wiki/Nowotny_phase

   In inorganic chemistry, a Nowotny chimney ladder phase (NCL phase) is a particular intermetallic crystal structure found with certain binary compounds. NLC phases are generally tetragonal and are composed of two separate sublattices. The first is a tetragonal array of transition metal atoms, generally from group 4 through group 9 of the ...

3. Stack effect - Wikipedia

   en.wikipedia.org/wiki/Stack_effect

   Reference [10] explains how the NPL affects the stack effect in high-rise buildings. For flue gas stacks or chimneys, where air is on the outside and combustion flue gases are on the inside, the equation will only provide an approximation. Also, A is the cross-sectional flow area and h is the height of the flue gas stack or chimney.

4. Flue-gas stack - Wikipedia

   en.wikipedia.org/wiki/Flue-gas_stack

   A flue gas stack at GRES-2 Power Station in Ekibastuz, Kazakhstan, the tallest of its kind in the world (420 meters or 1,380 feet) [1]. A flue-gas stack, also known as a smoke stack, chimney stack or simply as a stack, is a type of chimney, a vertical pipe, channel or similar structure through which flue gases are exhausted to the outside air.

5. Fire-tube boiler - Wikipedia

   en.wikipedia.org/wiki/Fire-tube_boiler

   As a general rule, factory assembly is much more cost-effective and the packaged boiler is the preferred option for domestic use. Part-assembled deliveries are only used when necessary because of access limitations - e.g. when the only access to a basement installation site is down a narrow flight of stairs.

6. Uniform Mechanical Code - Wikipedia

   en.wikipedia.org/wiki/Uniform_Mechanical_Code

   Chapter 5 - Exhaust Systems (Part 1: Environmental Air Ducts and Product Conveying Systems; Part 2: Commercial Hoods and Kitchen Ventilation) Chapter 6 - Duct Systems; Chapter 7 - Combustion Air; Chapter 8 - Chimney and Vents; Chapter 9 - Installation of Specific Appliances; Chapter 10 - Boilers and Pressure Vessels

7. AOL Mail

   mail.aol.com/?icid=aol.com-nav

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

8. Reynolds number - Wikipedia

   en.wikipedia.org/wiki/Reynolds_number

   Blood flow in brain ~ 1 × 10 2; Blood flow in aorta ~ 1 × 10 3; Onset of turbulent flow ~ 2.3 × 10 3 to 5.0 × 10 4 for pipe flow to 10 6 for boundary layers; Typical pitch in Major League Baseball ~ 2 × 10 5; Person swimming ~ 4 × 10 6; Fastest fish ~ 1 × 10 8; Blue whale ~ 4 × 10 8; A large ship (Queen Elizabeth 2) ~ 5 × 10 9 ...

9. ‘West Virginia Boys’ move a literal mountain to build a road ...

   www.aol.com/west-virginia-boys-move-literal...

   Coal miners from West Virginia – whom locals have lovingly dubbed the “West Virginia Boys” – moved a mountain in just three days to reopen a 2.7-mile stretch of Highway 64 between Bat Cave ...