Welcome to MBA's Exclusive Coil Calculator... now finding the right coil for your application is easy: This calculator will help you find the size of coil you will need as well as the material best suited for your coil (see material selection chart and disclaimer). This unique calculator can be used for heating-as well as for cooling applications. After finding the coil that fits your tank, request a quote from MBA with a touch of a button! Here are some tips on entering information into the calculator: Starting temperature of your tank Operating temperature of your tank Heat-up time Coil source temperature Steam in PSI Air velocity over tank Solution in tank Tank agitation		What is your application? Heat tank using hot water Heat tank using steam Your tank dimensions in inches: Length Width Depth Operating conditions of your tank: Starting temperature of the tank (normally 70F) Help F Operating temperature of the tank. Help F Heat-up time in Hours. Using a heat-up time of more than 3 hours will lead to smaller, less costly coils. Help Hours Coil source temperature (water or steam). You may select the pressure of steam in PSI and leave the temperature box blank. Help Source Temp. F -or- PSI steam 0 1 2 3 4 5 6 7 8 9 10 12 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 If the tank operating temperature is 160F or more, select the surface ventilation over the tank (if you don't know, select "1"). Help 0.0 0.5 1 2 5 10 20 50Surface Ventilation (feet/sec.)  Select the solution in your tank (select "Other" if it is not in this list): Solution In Tank... Acetic Acid Alkaline Cleaners (low concentration) Alkaline Cleaners (high concentration) Aluminum Bright Dip Antimony Plating Brass Plating Bronze Plating Cadmium/Cyanide Cadmium/Fluoborate Caustic Lime of Soda Chlorine Gas (moist) Chromic Acid 10% Chromic Acid 50% Chromium Plating/Fluoride Chromium Plating/Sulphate Citric Acid 15% Coloring Dye (Anodizing) Copper Plating/Sulphate Copper Plating/Cyanide Copper Plating/Pyrophosphate Dichromate Seal Dye Seal Hydrochloric Acid (No Iron) Hydrochloric Acid Pickling Nickle Plating/Non-Fluoride Nitric Acid (to 65%) --Other-- Phosphatizing Phosphoric Acid 10% Salt Brine Sealing Solution Sulfuric Acid Anodizing Sulfuric Acid Pickling Tin Plating Zinc Plating/Non-Fluoride Acid Zinc Plating/Cyanide See Important Material Disclaimer Is the solution in your tank agitated? No Yes

Tips On Entering Information Into The Coil Calculator

Temperatures

Starting temp. of tank = the temperature of fluid in your tank before it is heated.
Operating temp. of tank = the desired temperature of your tank for regular operation.

 

Consult MBA if your tank operates above 180°F or if the difference between your operating temperature and the temperature of your supply fluid or steam in your coil will be less than 15°F.

Coil source temp. = the temperature of fluid or steam that will be used in the coil to heat the tank.If steam is used in the coil and you know the pressure of steam in PSI, you may select the steam PSI instead of entering a temperature. In that case, leave the source temperature box empty.
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Heat-up time

Number or hours it takes to get your tank from the Starting temperature to the Operating temperature. You may enter fractions of an hour also (example: 1.5 hours).  The size of a coil is often determined by the time required to raise the solution to operating temperature. In general, the more time you allow, the smaller the  coil. Short heat-up times require large coils.

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Saturated steam in PSI

The temperature of saturated steam is proportional to it's pressure in PSI. The coil calculator automatically converts the steam PSI to the appropriate temperature value. If you select a steam PSI value you must leave the source temperature box empty. Here's a guide for relating steam pressure in PSI to temperature:

PSI	Temp, F		PSI	Temp, F		PSI	Temp,F
0	212		12	244		65	312
1	216		15	250		70	316
2	219		20	259		75	320
3	222		25	267		80	324
4	224		30	274		85	328
5	227		35	281		90	331
6	230		40	287		95	335
7	232		45	292		100	338
8	235		50	298
9	237		55	303
10	240		60	307

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Air ventilation over tank

As you increase the operating temperature of the tank, surface heat losses become significant, especially when there is air passing over the tank surface. The Coil calculator compensates for this surface loss for temperatures of 160F and above. If you don't know the air velocity over your tank, select "1 foot/second".
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Selecting tank solution  

Your coil material is determined by the type of solution to which your coil will be exposed. It is extremely important to choose your tank solution properly. If your tank solution is not on the list, please select "Other" from the list. If you are using a proprietary solution in your tank, please consult your chemical supplier for proper choice of coil material.
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Material Disclaimer

Material suggested on this web site provide general guidelines only. In view of the
ever increasing amounts of proprietary chemical solutions being offered by
chemical suppliers, we suggest that you contact your chemical supplier and
follow their recommendation in selecting the most suitable material for your
specific application.

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Tank agitation

Agitating the solution in your tank improves heat transfer properties and might lead to smaller coils. Agitation also enhances the corrosion resistance of metal. For special applications, MBA offers SX-2 Coils with built-in Airspargers.

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