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Heat Exchangers:
A heat exchanger is a device used to transfer heat from one fluid to
another while preventing the two from intermingling. The three main
types are shell and tube heat exchangers, air-cooled finned tube heat
exchangers and plate heat exchangers. Generally, there is a metal wall
partitioned between the two fluids that acts as a conductor. A hot
solution flowing on one side of the barrier transfers its heat to a
cooler solution flowing on the other side. Thermal energy only flows
from the hotter to the cooler in an attempt to reach equilibrium. The
surface area of a heat exchanger affects its speed and efficiency; the
larger a heat exchanger's surface area, the faster and more efficient
the heat transfer.
Heat exchangers are typically constructed of steel, titanium, copper,
bronze, stainless steel, aluminum or cast iron. One of the biggest
problems heat exchanger manufactures have to prevent is corrosion,
which common due to the constant flowing of liquid. Unfortunately, this
is very difficult to avoid. To help prevent this, tubing must be
resistant to general corrosion, pitting, stress-corrosion cracking
(SCC), selective leaching and oxygen cell attack in service. Some heat
exchanger designs use fins to provide greater thermal conductivity,
which also helps.
Weather in commercial or industrial use, heat exchangers are vital as
energy and money saving devices since most mechanical, chemical and
energy systems requires heat transferal of some sort.
Custom heat exchangers perform a crucial role in the design, operation
and maintenance of heating and air-conditioning systems, vehicle
design, power plants, refrigeration, chemical and industrial
engineering systems. They are also important in settings such as food
processing, industrial engineering processes, pharmaceutical pulp and
paper and the steel industry. All power generation industries need
them. Other industries that use heat exchangers include aerospace,
chemical, marine, semiconductor, petrochemical, electronic, automotive,
water treatment facilities and textiles. Heat exchangers are useful to
almost everyone.
IEC Make Shell & Tube Heat Exchangers remains the industry standard
in ultimate value and long-term reliability. This proven fixed &
floating tube sheet shell & tube heat exchanger offers the cost
effectiveness that comes with having a highly standard design, while
easily providing for various options to meet specific customer
requirements.
Sizes: 3" to 30" diameter; 12" to 192" length, Shells: Carbon Steel or 304 Stainless Steel, Tubes: 1/4", 3/8", 5/8", 3/4" & 1" diameter tubes available in Copper, Admiralty, 90/10 Cu Ni or 304 S/S. Straight tube or U-Tube configurations, Baffles: Precision punched Carbon Steel, Brass or 304 S/S, Heads: Cast heads available in iron, 304 S/S or bronze; Fabricated heads available in Steel, 304 S/S or 90/10 Cu-Ni. Flow: Available in 1-pass, 2-pass and 4-pass designs. Codes: Commercial Standard (non-code) ASME-TEMA-C, IS-2825.
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