Radiators

Individual banks in parallel

Individual banks in series with adjustable positioning

Individual banks in parallel with multiples as needed

Segments between banks may be either open or blocked to provide series and parallel sections as desired

Open and blocked segments with multiple combinations allows for numerous series/parallel configurations

When in extrusion form and nested together many combinations and configurations are possible in addition to the various combinations of heat transferring fluids and gasses

Turbulator Style Radiators

Coolant Capacity in gal. per Module (Two Banks) 12 inches long.
Diameter of coolant holes.
Dia.                                   Gal
1/4 in.                             .087
5/16 in.                           .1354
3/8 in.                              .195
7/16 in.                            .2655
1/2 in.                              .347
5/8 in.                              .542

Heat Exchanger / Radiator – Typical Tube Serpentine Fin Construction

Foil Fin Contact Points

Contact points: Approx. 6 per cm of tube one side. (Each point = .5 mm. or 3mm/cm. Radiator Thickness: 1.25 in. (31 mm), or 3x31x2= 186 mm of contact per tube both sides.

Solid Fins vs Foil Fins

All else being the same, if in the heated area the conduction contact points are doubled and doubled again, and again until nearly all the tube surface has contact points, the air passage through the foil fins would be nearly completely obstructed, and still the foil with a .08 mm thickness is unable to properly conduct the heat up into the airstream, when compared to solid metal.


Solid Fins vs Foil Fins

Advantages of using extrusion shapes for heat exchangers.

By using solid metal, the conduction path is more direct and quicker to take the heat away from the coolant up into fins where it is presented to the convective air currents passing by the solid fins.

By using the fin shape that follows the inverse square curve, a higher temperature is maintained higher up into the fin giving faster heat transfer while at the same time the amount of fin metal is diminishing thereby conserving material and lowering weight.

A substantial benefit comes from the wide-open strong fin structure allowing high pressure spray cleaning without the worry of damaging the fins.

Faster heat transfer means smaller radiators/condensers. Frontal area reduction allows for better air streaming for increased fuel saving for over the road travel.

Some Math:

Conventional Auto Main Radiator Construction

Math for Surface Area for Heat Transfer:

Typical Tube Fin construction.

Tube Serpentine Foil Fin:

Contact points: Approx. 6 per cm of tube one side. (Each point = .5 mm. or 3mm/cm. Radiator Thickness: 1.25 in. (31 mm), or 3x31x2= 186 mm of contact per tube both sides.

Width of radiator: 29 in. (737mm)

Height of radiator: 14.44 in (367)

Frontal area: 29 x 14.44 = 419 sq.in. (270,322 sq. mm)

25.4 x 25.4 x 419 = 270,322

Contacts per tube length per tube: 220.2 (6 per cm x 36.7cm)

Tubes per width of radiator: 76

76 x 220.2 = 16735.2 tube contact points.

Each contact point = .5 mm

Radiator thickness 1.25 in.

Assuming full tube contact of each two-fin loop per thickness. 16735.2 x 1.25 = 20,919

20,919 x .5 = 10,459.5 sq. mm of contact for heat transfer.

10,460 / 270,322 = .0387, a factor of heated area to convection area.

.0387

                                             Dollar Dimensions: Length- 6.125 in. (155.6 mm)   Width- 2.625 in. (66.7 mm.)