Catalogue - Vortec Product Guide - ITW Vortec - (Version JPG)

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Blow gun, Air knife, Cooling vest, Vortex tube, Pump

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Vortex

ubes

The table below shows approximate temperature drop and rise achieved by vortex tubes when adjusted to various Cold Fractions. A Cold Fraction is the percentage of cold air produced versus total filtered compressed air consumed by any Vortex Tube.


COLD	■
FRACTION	¹									⁰	CO		7		8	⁰
PSIG/BAR	F°	C°	F°	C°	F°	C°	F°	C°	F°	C°	F°	C°	F°	C°	F°	C°	F°	C°
20/1.4	63	35	62	34	60	33	56	31	51	28	44	24	36	20	28	15	17	9
20/1.4	7	4	15	8	25	14	36	20	50	28	64	36	83	46	107	59	1 48	82
40/2.8	91	5 1	88	49	85	47	80	44	73	41	63	35	52	28	38	21	26	14
40/2.8	9	5	21	11	35	19	52	29	71	39	92	51	117	65	1 47	82	220	1 22
60/4.1	107	59	104	58	100	56	93	52	84	47	73	41	60	33	45	25	29	16
60/4.1	10	6	24	13	40	22	59	33	80	44	104	58	132	73	16 8	93	236	131
80/5.5	119	66	115	64	110	61	102	57	92	5 1	80	44	66	36	49	2 7	1 3	1 7
80/5.5	11	7	25	14	43	24	63	35	86	48	113	63	143	79	181	1 01	249	138
100/6.9	127	71	123	68	118	66	110	61	99	55	86	48	71	39	53	29	33	18
100/6.9	12	8	26	14	45	25	67	37	91	5 1	119	66	151	84	192	1 07	252	1 40
120/8.3	133	74	129	72	124	69	116	64	104	58	91	50	74	41	55	31	34	19
120/8.3	13	8	27	14	46	26	69	38	94	52	123	68	156	87	19 5	1 08	257	1 42
140/9.7	139	78	135	75	129	72	1 21	67	109	61	94	52	76	42	57	32	35	20
140/9.7	14	8	28	16	47	27	71	39	96	53	124	69	157	88	19 6	1 09	259	1 44

Table Baseline: Compressed air temperature: 7 0 ° F/2 1 ° C Pres sure Dew Point: -6 9° F/-5 6 ° C (dry air) Backpressure: not to exceed 5 PSIG/0.4 Bar Numbers on the Blue Bar: Temperature Drop Numbers on the White Bar: Temperature Rise

Air Flow - The t ot al S CFM air cons umpt ion of any Vortex Tube is proportional to any particular absolute inlet pressure as follows:

Compressed Air In

Control Valve

Hot Air Out

(PSIG+ 15) x Generator Rating 115

= approximate total air consumption

Fluid (air) that rotates around an axis (like a tornado) is called a vortex. A Vortex Tube creates cold air and hot air by forcing compres s ed air through a generation chamber, which spins the air at a high rate of speed (1,000,000 RPM) into a vortex. The high-speed air heats up as it spins along the inner walls of the Tube toward the control valve. A percentage of the hot, high s peed air is permitted to exit at the valve. The remainder of the (now slower) air stream is forced to counterflow up through the center of the high-speed air stream in a second vortex. The slower moving air gives up energy in the form of heat and becomes cooled as it spins up the tube. The chilled air passes through the center of the generation chamber finally exiting through the oppos ite end as extremely cold air. Vortex tubes generate temperatures down to 100°F below inlet air temperature. The control valve located in the hot e xh a u s t e n d c a n be u s e d t o a d ju s t t h e t e m p e r a t u r e drop and rise for all Vortex Tubes.

All Vortex Tubes are Easily Adjusted to Regulate Airflow Volume and Temperature

Vortex Tube performance can be further modified by changing an internal bushing or generator. These modifications can change the total flow capacity (CFM) and cold fraction to achieve maximum refrigeration or lowest possible cold temperature. Generator kits, hot end / cold end mufflers, as well as stainless steel Vortex Tube models are available. For help with your spot cooling application, please contact one of our Application Engineers. They will be happy to assist you with proper Vortex Tube selection.

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Vortec Product Guide - ITW Vortec - #3

Blow gun, Air knife, Cooling vest, Vortex tube, Pump