STANDARD HEAT EXCHANGERS

Transcription

1 STANDARD HEAT EXCHANGERS THERMAL MANAGEMENT

2 AMS Technologies Thermal Management TUBE-FIN HEAT EXCHANGERS COOLING SOLUTIONS Our tube-fin heat exchangers consist of copper or stainless steel tubes expanded into copper or aluminum fin. Tube-fin heat exchangers are cost effective and offer good heat removal for a wide range of applications including lasers, electronics, compressor cooling, semiconductor processing equipment, and solder reflow ovens. Our copper tubed 6 Series and OEM coils, and stainless steel tubed Aspen and 4 Series offer compatibility with a wide range of common coolants. Copper 6 Series & OEM Coils The copper 6 series heat exchangers have copper tubing expanded into copper cooling fi ns. The 6 Series heat exchangers are electrostatic dip painted for hostile environments and all units are supplied with built-in, fan-ready mounting hardware. The copper OEM coils are the ideal solution for large volume, price sensitive users who need a high quality, cost effective part but do not require the additional features of the 6 Series. Stainless Steel Aspen & 4 Series The stainless steel Aspen heat exchanger combines low price and low pressure drop with excellent heat transfer and superior fl uid integrity. The 4 Series heat exchanger is our highest performing stainless steel tubed heat exchanger. It is ideal for applications where deionized water or corrosive fl uids are used, and a high effi ciency, compact unit is required. Standard Heat Exchangers

3 Copper Heat Exchangers 6 & OEM Coils Copper tubes are compatible with water, EGW, and other common cooling fluids Supplied with built-in, fan-ready mounting hardware n plate ptional).8 (.7 mm) wall tubing ensures fluid circuit durability Fluxless, silver-brazed joints provide leak-free operation and high reliability OEM Coils 6 Series Both the OEM Coils and 6 Series copper tube-fin heat exchangers offer high performance and reliability. The OEM Coils heat exchanger has aluminum fins and is unpainted with galvanized steel side plates. The 6 Series heat exchanger has a different tube configuration, uses copper fins, is painted black for corrosion resistance, and includes a fan plate. OEM Coils are best suited for the price-sensitive customer in applications where the appearance of the heat exchanger is not critical, such as when the heat exchanger is hidden inside of the equipment. The 6 Series s an attractive, high performance heat exchanger that delivers efficient heat transfer and maximum reliability in a compact package. Engineered for performance: The OEM Coils and 6 Series are both engineered for performance. The seamless copper tubes are expanded into the fin with an extruded full collar that ensures excellent metal-to-metal contact to optimize thermal performance. However, with the 6 Series, the higher tube density results in maximum heat transfer. Reliable, leak-free, and robust: Our thick-walled (.8 /.7 mm) seamless copper tubing and fluxless silver-brazed joints ensure the integrity of the fluid path. All OEM Coils and 6 Series heat exchangers are also pressure tested to psi (.3 bar) to guarantee reliability. The 6 Series units are electro-static dip painted for long life even in corrosive or harsh environments. Compatible with a range of coolants: The OEM Coils and 6 Series are compatible with water, Ethylene Glycol/Water (EGW) solutions, and other common coolants. Standard Heat Exchangers 3

4 8993_ AMS Technologies Thermal Management Stainless Steel Heat Exchangers Aspen & 4 Series Welded, argon-purged joints maximize internal cleanliness Available with straight, beaded, or 37 AN flare fittings. 36L stainless steel tubing compatible with deionized water and corrosive fluids Aspen 4 Series The Aspen and 4 Series tube-fin heat exchangers are ideal for applications where deionized water or corrosive fluids are used and a high performing heat exchanger is required. When a slightly lower performance/size ratio is acceptable, the Aspen offers better value - 8% of the performance of the 4 Series at approximately % of the cost. The Aspen also has lower air and liquid side pressure drops than the 4 Series. However, when high performance in a small envelope is required, the 4 Series is the best option. Engineered for performance: The Aspen and 4 Series are both engineered for performance. Heavy-walled, seamless stainless steel tubes are expanded into copper fin with an extruded full collar. The copper fin and the excellent metal-to-metal contact between the tube and the fin collar ensure optimum thermal performance. Compatible with deionized water and corrosive liquids: All the wetted surfaces in the Aspen and 4 Series are 36L stainless steel, so they are ideal for use with high purity and/or corrosive coolants such as deionized water. Rugged and reliable: The welded stainless steel frame and fan plate offer durability and strength. The Aspen and 4 Series heat exchangers are % leak tested to psi (.3 bar). The Aspen has. (. mm) wall tubing and the 4 Series has.8 (.7 mm) wall tubing. Integrated fan plate for improved performance and convenience: The integrated fan plate acts as a plenum to ensure uniform air-flow distribution through the core, thus maximizing performance. It also enables easy fan installation. Extremely clean (Aspen): With our Aspen Series, our proprietary manufacturing process expands the tubes into the copper fin without the use of oils and our liquid return design eliminates potential particle trapping sites, which can contaminate cooling fluid. Argon-purged welded joints further ensure cleanliness. 4 Standard Heat Exchangers

5 Lytron_Catalog_:Lytron 4/6/ 4:8 PM Page Drawings Heat Exchanger (88).8.8 (7) (47).3 (33) 7.4 (88).8 (47) 3.3 (84).8 (46) (3). (67) 3.3 (84).8 (46) (9) (68).38 () (9) (47).38 () (9) (47).38 () (3) 9. (4) 4. (4). (64) 9.9 () 7.6 (446) 4. (4). (64) 9..4 (9) ().38 () 9..4 (9) ().38 () (38). (9).6 (4). (3).9 (83).6 (49).6 (4). (3).. (8) (3)..3. (9) (3) (699) 4.8 (63) 7. (78).6 (4) 3. (89). (38) (64) PDFs, IGS files, and edrawings of standard heat exchangers are available at Main dimensional label is inches. Dimension in parentheses is mm. Standard Heat Exchangers

6 AMS Technologies Thermal Management 993_Lytron_Catalog_:Lytron 4/6/ 4:8 PM Page M- M- 8993_L Drawings Heat Exchanger 6.3 (6).7 (46) (6).38 M- () M (99) 6.3 (6).7 (73) (6).38 (). 3.9 (99).7 (46) (6)..7 (73) (6). 6.3 (6) 3.9 (99) M-8 M-6.38 () 6.3 (6).38 () 3.9 (99) 8.7 (3). 6.7 (46)..6 (69). ().6 (69) M-8 M-6. () 8.7 (3). 6.7 (46)..6 (69). () M4- M4-4.6 (69). ().7 (3). 4.7 (63). 4. (36). () 4. (36) M4- M4-4. ().7 (3). 4.7 (63). 4. (36). () 4. (36). () PDFs, IGS files, and edrawings of standard heat exchangers are available at Main dimensional label is inches. Dimension in parentheses is mm PDFs, IGS files, and edrawings of standard heat exchangers are available at Main dimensional 6 Standard label is Heat inches. Exchangers Dimension in parentheses is mm.

7 ytron_catalog_:lytron 4/6/ 4:8 PM Page 3 M- M- Drawings Heat Exchanger AS4-6.3 (6).7 (46) (6).38 (). 3.9 (99) AS4-6.3 (6).7 (73) (6).38 (). 3.9 (99) 8. (7).3 (34) 3.4 (86).8 (47) 3.4 (339). (67) 3.4 (86).8 (47) (9) () M-8 () M (9) ().38 () 8.7 (3). 6.7 (46). AS6-8.6 (69). () AS6-6.6 (69). ().9 (76) 8. (3) 4.3 (8). (3) 9. (48) 6. (49) 4.3 (8). (3) (9) (3) M4-.38 M4-4 () (9) (3).38 ().7 (3). 4.7 (63). 4. (36) AS8-. () 4. (36) AS8-. ().9 (36). (4).6 (4). (3).9 (83). ().6 (4). (3) () (98) () (98).38 ().38 () PDFs, IGS files, and edrawings of standard heat exchangers are available at Main dimensional label is inches. Dimension in parentheses is mm PDFs, IGS files, and edrawings of standard heat exchangers are available at Main dimensional label is inches. Dimension in parentheses is mm. Standard Heat Exchangers 7

8 AMS Technologies Thermal Management (6).7. (46) 8993_Lytron_Catalog_:Lytron 4/6/ 4:8 PM Page (6) (6).7 (73) 6.3 (6) 3.9 (99).38 () (99).38 () Drawings Heat Exchanger 4 M (94).8 (47) 8.7 (3).8 (7) 7.8 (98). 4.9 ().3 (33) (9) (68).6 (69) 3.4 (86) 4..8 () (47).38 () 4 M-6 (). 4.6 (69).8 (47) 6.7 (46).6 (3) 9.7 (46) 3.4 (86)..8 (47) 4..8 () (47).38 ().38 ()(). 4 M4-.9 (77) 8. (3).7 (3) 4. (4) (8) (9) M4-4. (64) 9. (483) 6. (48). 4.7 (63) 4. (4) (8) (9)..38 ().38 () 4. (36) ().. (64) (36). () 43.9 (38). (4) 6. (3). (64) 3. (84)..9 (48). (64).9 (48). (3). PDFs, IGS files, and edrawings of standard heat exchangers are available at PDFs, IGSdimensional files, and edrawings of standard heat in exchangers are isavailable at Main label is inches. Dimension parentheses mm. Main dimensional label is inches. Dimension in parentheses is mm (3) Standard Heat Exchangers. (3).

9 8993_Lytron_Catalog_:Lytron 4/6/ 4:8 PM Page 6 Performance Graphs Heat Exchanger 6 & min 8 4 Kona Kona M min min Marin M-6 min 4 gpm / Chinook Marin min M / Chinook Marin min M4-4 gpm min 4 gpm 6 4 / gpm Chinook Marin min Chinook Kona 6 / / 6 Kona / min 3 /4 gpm 4 Kona /4 gpm 6 & 4 4 / M- 3 min / & 4 6 & 4 3 min The solid vertical lines indicate the performance provided by our standard fans at 6 Hz and C. Dashed fan lines represent fan performance at Hz and C. For pressure drop curves, please visit Standard Heat Exchangers 9

10 AMS Technologies Thermal Management 3_Lytron_Catalog_:Lytron 4/6/ 4:8 PM Page _ Performance Graphs Heat Exchanger 4 / min 6 3 / 4 3 /4 gpm Kona min 8 6 Chinook 4 / Marin min 4 gpm AS min / 6 4 Kona AS min Chinook 8 Marin 6 4 / min 8 gpm 4 gpm Chinook min 8 / 6 4 Marin AS AS min 4 gpm M & min 4 gpm 3 4 / The solid vertical lines indicate the performance provided by our standard fans at 6 Hz and C. Dashed fan lines represent fan performance at Hz and C. For pressure drop curves, please visit Standard Heat Exchangers

11 Performance Graphs, Heat Exchanger AS8- m 3 min / AS8- m 3 3 min / The solid vertical lines indicate the performance provided by our standard fans at 6 Hz and C. Dashed fan lines represent fan performance at Hz and C. See for ES Series performance graphs for oil. 3 / EGW at 6 F (7 F). For pressure drop curves, please visit Standard Heat Exchangers

12 AMS Technologies Thermal Management Specifi cations & Part Numbering Confi guration First select a core number Next, select a fitting option Add a fan plate if desired Arrive at a base part number e.g. 6G BD Add any additional options CORE NUMBER FITTINGS FAN PLATE FANS SB BD AN Fan Plate Kona Marin Chinook # of fans 6G included 6G included 6G included 6G included 6G included 63G3 included 63G3 included 634G no fan plate 634G included 4 M- M- M-8 =no fan plate; =fan plate M-6 M4- M4-4 AS4-G included AS4-G included AS6-8G included AS6-6G included AS8-G included AS8-G included 4G included 4G included 4G included 4G included 4G included 43G included 43G included ESG Fans & Accessories Description Size Voltage Amps Hz Amps 6 Hz Fan Part Number Fingerguard Part Number Fan Plug Number Kona 4.69" ( mm) square Marin 6.77" (7 mm) round Chinook 6.77" (7 mm) round " (4 mm) round Standard Heat Exchangers

13 8993_Lytron_Catalog_v3:Lytron // 7: PM Page 6 Selecting a Heat Exchanger. Cooling Liquid In order to select the correct Lytron heat exchanger or oil cooler, you must first determine the required thermal performance for your application. Use the example shown below: Step : Application Data Liquid type: Required heat load (Q): Temp. of incoming liquid (Tliquid in): Temp. of incoming air (Tair in): Rate of liquid flow: Water 3,3 W (,63 /Hr) 8 C (76 F) C (7 F) (7.6 lpm) Step : Select the heat exchanger product series Choose an aluminum, copper, or stainless steel heat exchanger based on the fluid compatibility. Aluminum tubing is usually used with light oils, or Ethylene Glycol and Water (EGW) solutions, copper is normally used with water, stainless steel is used with deionized water or corrosive fluids. Step 3: Calculate the Initial Temperature Difference (ITD) Subtract the temperature of the incoming air from the temperature of the incoming liquid as it enters the heat exchanger. ITD = Tliquid in - Tair in = 8 C C = 9 C (or 76 F 7 F = 6 F) Step 4: Calculate the required performance capability (Q/ITD) Divide the required heat load (Q) by the ITD found above in step 3. Performance capability = Q = 3,3 W = 6 W/ C or,63 /HR = 6 /Hr F ITD 9 C 6 F Step : Select the appropriate heat exchanger model Refer to the thermal performance graphs for the heat exchangers selected. (Performance graphs for copper heat exchangers, stainless steel heat exchangers, and oil coolers can be found on pages 6, 7, and 8 respectively.) Any heat exchanger that exceeds 6 W/ C at (using a standard fan) would be acceptable. As shown in the following graph, Lytron s 6 exceeds the required performance. Step 6: Determine the liquid pressure drop From the data given, we know our pump needs to supply water at. Using the liquid side pressure drop chart for the 6 curve on the point where a vertical line at the point on the x-axis intersects with the 6 curve reveals that the liquid pressure drop through the 6 is 8 psi (. bars). The pump selected must overcome this pressure drop to ensure a flow. min / 4 6 Chinook Marin 3 4 Step 7: Determine the air pressure drop The vertical line on the thermal performance chart indicates the air flow rate (8 for the Marin fan) as provided by our standard fans at 6 Hz. The intersection point of this air flow rate and the 6 graph on the air side pressure drop reveals that the air side pressure drop through the 6 is.4 inches of water ( pascals). Liquid Side Pressure Drop Air Side Pressure Drop LPM Bar.. PSI PSI 3 6 GPM BAR Liquid Flow 3. GPM min. Inches of Water Pascals Standard Heat Exchangers 3

14 AMS Technologies Thermal Management 3_Lytron_Catalog_v3:Lytron // 7: PM Page 6 Selecting a Heat Exchanger. Cooling Air In cabinet cooling applications, the air is hotter than the liquid. In this case, the ITD is the difference between the hot air entering the heat exchanger and the cold liquid entering the heat exchanger. You may need to calculate the temperature rise using the heat load and the temperature of the cool air entering the cabinet. Example: Cabinet Cooling application You are cooling a cabinet containing electronic components that generate 4 W of heat. The air in the cabinet must not exceed C. What heat exchanger should be selected, and what is the temperature of the cool air entering the electronics cabinet? Step : Application Data Liquid type: Required heat load (Q): Temp. of incoming liquid (Tliquid in): Max. temp of air in cabinet (Tair in): Rate of liquid flow: Water,4 W (8,89 /Hr) C C (3 F) This is the temperature of the hot air entering the heat exchanger (7.6 lpm) Step : Calculate the ITD Subtract the temperature of the incoming liquid from the temperature of the incoming air as it enters the heat exchanger. ITD = Tair in - Tliquid in = C C = 3 C (or 3 F 68 F = 63 F) Step 3: Calculate the required performance capability (Q/ITD) Divide the required heat load (Q) by the ITD found above in step. Q,4 W 8,89 /HR = = 68.6 W/ C or = 3 / ITD 3 C 63 F Step 4: Select the appropriate heat exchanger model Refer to the thermal performance graphs for the heat exchangers selected. (Performance graphs for copper heat exchangers, stainless steel heat exchangers and oil coolers can be found on pages 6, 7, and 8 respectively.) Any heat exchanger that exceeds 68.6 W/ C at (using a standard fan) would be acceptable. Using water as the coolant, a copper heat exchanger is recommended. As shown in the following graph, Lytron s 63 exceeds the required performance, offering a Q/ITD of approximately 96 W/ C using our fan. Liquid and air pressure drop can be determined the same way as in the previous example. These graphs offer a simple graphical way of estimating fluid temperature change if you know your heat load and flow, without having to do calculations. The graphs for water, air, / Ethylene Glycol/Water (EGW) and oil allow you to calculate temperature changes for air and liquid for all types of heat exchangers. 4 Change in Temperature ( C) Step : Calculating the temperature of the cool air entering the cabinet Now, to calculate the temperature of the cool air entering the cabinet, use the temperature change graph for air found on With a heat load of,4 W, and a flow rate of (the flow rate of the standard fan recommended for use with 9 the 63) we can see that the 8 temperature change is 7 C. 7 This means that the cool air entering the cabinet will be: 6 C 7 C = 38 C Standard Heat Exchangers Performance capability = min 8 4 gpm / LPM F () 8 kw kw kw 7 kw kw 4 kw 3 kw kw. kw kw W W

15 Notes Standard Heat Exchangers

16 WHAT CAN WE DO FOR YOU? Please contact us for further information Germany AMS Technologies AG (Headquarters) Fraunhoferstr. 8 Martinsried, Germany Phone +49 () Fax +49 () info@amstechnologies.com United Kingdom AMS Technologies Ltd. Unit, St Johns Business Park Lutterworth Leicestershire LE7 4HB, United Kingdom Phone +44 ()4 636 Fax +44 ()4 974 info@amstechnologies.com France AMS Technologies S.A.R.L. Silic 77 Bâtiment Magnolia 6, avenue du Québec 996 COURTABOEUF Cedex Phone +33 () Fax +33 () info@amstechnologies.com Italy Spain Nordic AMS Technologies S.r.l. Via San Bernardino, 49 Legnano (MI), Italy Phone Fax info@amstechnologies.com Optical Technologies Power Technologies Thermal Management AMS Technologies S.L. C/Muntaner, Atico, 4a 836 Barcelona, Spain Phone +34 () Fax +34 () info@amstechnologies.com AMS Technologies Nordic Azpect Photonics AB Aminogatan Mölndal, Sweden Phone +46 () Fax +46 () info@amstechnologies.com ISO 9 DIN EN ISO 9 TAW Cert Zert.Nr.: 933 AMS Technologies. All rights reserved. TM_Heat_Exchanger_4