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Durable Small SS Spiral Finned Tube Finned Heating Element ASYM Standard
Durable Small SS Spiral Finned Tube Finned Heating Element ASYM Standard
Durable Small SS Spiral Finned Tube Finned Heating Element ASYM Standard
Durable Small SS Spiral Finned Tube Finned Heating Element ASYM Standard
Specifications
Brand Name :
TOBO
Model Number :
Stainless Steel
Certification :
ISO SGS
Place of Origin :
CHINA
MOQ :
1PC
Payment Terms :
T/T
Supply Ability :
3000 /MONTH
Delivery Time :
15 DAYS
Packaging Details :
AS Requirement
Standard :
ASYM
Welding line type :
WELD
Material :
Stainless Steel
Description
stainless steel spiral fin tube heater finned heater fin heating element

M. Nitsche, R.O. Gbadamosi, in , 2016

Finned Tube Calculations  251

12.3.1

Calculation of the fin efficiency ηF 251

12.3.2

Calculation of the weighted fin efficiency ηW 251

12.3.3

Calculation of the overall for the inner tube surface area Ai without

12.3.4

Calculation of the overall heat transfer coefficient Uo based on the outer tube area Ao without fouling 254

12.3.5

Calculation of the overall heat transfer coefficient Uo based on the finned outer surface area Ao considering the fouling factors ro and ri 255

12.3.6

Calculation of the overall heat transfer coefficient Ui for the inner tube surface area Ai considering the fouling factors ro and ri 256

12.3.7

Fouling and Temperature Gradient 256

12.3.8

Comparison of the specific heat duties Ui × Ai (W/m K) of different tubes 258

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AIR-COOLED HEAT EXCHANGERS

12.2.2 High-fin tubing

Finned tubes are almost always used in air-cooled exchangers to compensate for the low air-side. Radial (annular) fins arranged in a helical pattern along the tube are used. The fin heigh is significantly larger than that of the low-fin tubes used in Hence, this type of tubing is referred to as high-fin tubing.

Various types of high-fin tubing are available, including:

•

Integrally finned

Durable Small SS Spiral Finned Tube Finned Heating Element ASYM Standard

Medium-high finned tubes made of copper and copper alloys

GEWA-D finned tubes made of copper and copper alloys are available in a wide range of sizes and withstand the highest mechanical and thermic stress. They are specially made for the individual geometries of complex heat exchangers. Copper offers the highest heat conductivity of all technical metals. It is superior in processing, hygienic and a corrosion resistant solution.

Durable Small SS Spiral Finned Tube Finned Heating Element ASYM Standard

Medium-high finned tubes made of aluminium

GEWA-D finned tubes made of aluminium are specifically used in light-weight applications. Aluminium combines highest ductility with reasonable heat conductivity.

Durable Small SS Spiral Finned Tube Finned Heating Element ASYM Standard

NEW: Medium-high finned tubes made of carbon steel

GEWA-D finned tubes made of carbon steel can be used in applications such as solid-fuel boilers or storage tanks. The significantly enlarged surface area compared to plain tubes allows compact solutions. Ready to install heat exchangers can be an interesting alternative solution for heat exchangers made of costly materials.

Durable Small SS Spiral Finned Tube Finned Heating Element ASYM Standard

NEW: Medium-high finned tubes made of stainless steel

GEWA-D medium-high finned tubes made of stainless steel can be used for condensing boilers or domestic hot water applications. Due to the enlarged outside heat transfer surface area the required tube length can be reduced and thus costly material can be saved.

Table 12.1. Characteristics of Typical High-Fin Tube Arrays

Root tube OD (in.) 1.0 1.0
Fin height (in.) 0.500 0.625
Fin OD (in.) 2.00 2.25
Average fin height (in.)
 Tension wound or embedded 0.012–0.014 0.012–0.014
 Bimetallic or integral* 0.015–0.025 0.015–0.025
Fins per inch 9 10
Tube layout angle 30° 30°
Tube pitch (in.) 2.25 2.50
ATot/L 3.80 5.58
ATot/Ao 14.5 21.4
ATot/Ai
 13 BWG 17.9 26.3
 14 BWG 17.4 25.6
 16 BWG 16.7 24.5
External surface area per unit bundle face area
 Three tube rows 60.6 80.4
 Four tube rows 80.8 107.2
 Five tube rows 101.0 134.0
 Six tube rows 121.2 160.8

Product tags

heating tube element

,

tube heating element

,

tube heater element
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Durable Small SS Spiral Finned Tube Finned Heating Element ASYM Standard

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Product Detail
Brand Name :
TOBO
Model Number :
Stainless Steel
Certification :
ISO SGS
Place of Origin :
CHINA
MOQ :
1PC
Payment Terms :
T/T
Contact Supplier
Durable Small SS Spiral Finned Tube Finned Heating Element ASYM Standard
Durable Small SS Spiral Finned Tube Finned Heating Element ASYM Standard

TOBO STEEL GROUP CHINA

Verified Supplier
10 Years
shanghai, shanghai
Since 1998
Business Type :
Manufacturer, Agent, Importer, Exporter, Trading Company, Seller
Main Products :
Butt Weld Fittings, Stainless Steel Elbow, Stainless Steel Tee
Total Annual :
100000-100000000
Employee Number :
200~300
Certification Level :
Verified Supplier
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