Oval Tube Serpentine

The most common problem encountered in fluid mechanics applications is the frictional resistance (CD) caused by the form of the objects. This resistance can be reduced by making the form of the object in contact with the fluid more suitable for the flow shape. Oval pipes are more suitable for the flow shape than circular pipes.

The table below shows the frictional resistance (CD) of round and different oval pipe types in laminar and turbulent flow. For example, in an oval pipe with R1:R2 ratio of 2:1, the frictional resistance is 1.5 times less than a circular pipe. In this case, since the air side pressure losses will decrease, the fan motor will consume less energy.

Both spiral finned serpentine and flake stacked serpentine can be manufactured with oval tubes. Our existing moulds for oval pipes are given in the section on flake coils. Spiral finned coils are manufactured like standard spot welded coils.

Catalogue

The most common problem related to fluid mechanics application is the frictional (CD) drags due to the form of objects. This friction losses can be reduced by turning the form of the object, which is contacting with the fluid, into a more suitable shape. The shape of oval tubes is more appropriate for shape comparing with circular tubes. At laminar and turbulent flows, the frictional drags (CD) of circular tube and different types of oval tubes are described in the below table. For example, comparing a circular tube and an oval tube; R1:R2 rate is 2:1; the frictional drags of the oval tube is 1.5 times less then circular tube. Because of this reduction, although the air-side pressure drop decreased, also fan motor needs less energy.

Oval tubes can be used to produce both spiral finned serpentines and stamped-rectangular finned serpentines. Available dies about oval tubes are specified with stamprectangular finned serpentines. Spiral finned serpentines are produced like standard spot welded serpentines.

KANAT DETAY BİLGİLERİ

Sarma Kanatlı Serpantinler
Kanat Yüksekliği	L 4-25 mm
Kanat Kalınlığı	t 0.4-1.5 mm
Hatve	h 2-10 mm
İlgili Resim	Şekil 1
Tek Borulu Pul Dizme Serpantinler
Kanat Ölçüsü	AxB 60x26-55x26
56.75x28-63.75x59.75mm
Kanat Kalınlığı	t 0.4 mm
Hatve	h 2-3-3.5 mm
İlgili Resim	Şekil 1 ve 5
İki Borulu Pul Dizme Serpantinler
Kanat Ölçüsü	AxB 84.5x26 mm
Kanat Kalınlığı	t 0.4 mm
Hatve	h 2-3-3.5 mm
İlgili Resim	Şekil 2 ve 6
Üç Borulu Pul Dizme Serpantinler
Kanat Ölçüsü	AxB 89x48 mm
Kanat Kalınlığı	t 0.4 mm
Hatve	h 3 mm
İlgili Resim	Şekil 3 ve 7

KULLANIM YERLERİ
Tekstil makineleri hava ısıtıcıları, Kurutma makineleri hava ısıtıcıları, Klima santral hava ısıtıcıları, Hava soğutucuları ,Turbo şarj soğutucular, Yağ soğutucuları, Su soğutucuları

Oval tube serpentine