i need to determine if a brazed  plate heat exchanger is ok for my conditions?
610964
So, what are your conditions?\n\nI am curious as to why you might want to use a plate exchanger rather than a shell and tube exchanger?\n\nHeating water with steam can be a problem depending on the quality of the water and steam. You can be deposits on both sides of the exchangers. A plate type exchanger is not easy to clean or repair. I think it would work okay but could be a real problem if it becomes contaminated with deposits.\n\nI suggest you contact the Trane company in LaCrosse, Wisconsin. They have manufactured these type of exchangers for sometime.
406734
About 36-40C idle 46C the most on load. You would be fine up to 60C but that would be not really an ideal temp for sure.
223544
I would suggest contacting the manufacturer (or CO2 supplier) then consider whether your application is more or less critical and thus may be covered by industry codes.  There is high pressure and then there is high pressure and your specific pressure, environment and use (pressure cycles?) may be important.  If there were an accident or interruption of CO2 service, you might be liable for not following codes or using good judgement (backed up by your formal contacts?).  Also, can the CO2 supplier furnish you with tested cylinders to avoid contaminating them with hydro fluid?
836869
First, here is a back drop of info to help you determine wether brazing or soldering will be msot effective for you. \n\nBrazing use molten metal to join two pieces of metal, yes. However, the metal added during the process has a melting point lower than that of the workpiece, so only the added metal is melted, not the workpiece. \n\nSoldering uses metals with a melting point below 800 degrees Fahrenheit; brazing uses metals with a higher melting point. Because soldering and brazing do not melt the workpiece, these processes normally do not create the distortions or weaknesses in the workpiece that can occur with welding. \n\nSoldering commonly is used to join electrical, electronic, and other small metal parts. Brazing produces a stronger joint than does soldering, and often is used to join metals other than steel, such as brass. Brazing can also be used to apply coatings to parts to reduce wear and protect against corrosion.\n\nI recommend copper or aluminum for your small project.
237301
Welding on galvanized metal can be dangerous.  The best bet is supplied air.  This would be preferable over any filter. Always make sure there is good ventilation, too.
812553
ok my way is an extreme but i suggest encase it in silicone let it dry then its water proof i saw a pic of a cooling system for a mother board it was encased in silicone and put in a fish tank \n\nBUT BE WARNED ENCASING IT IN SILICONE WILL ADD TO THE HEAT PROBLEM ON SOME BOARDS
662542
It looks like it can run to 90°C under load without problem\nhttp://users.erols.com/chare/elec.htm\nThis link may give you some tips, but I don't think you have a serious problem...\nhttp://www.hardwaresecrets.com/article/143
318461
Depends on what you need.  I work for a manufacturer of heat transfers.  Tell me what you need and maybe I can help you out.
779997
look on the manufacturers website
874237
R&D Projects\nAdvanced Computations\n\n \n\nAlloy Selection System for Elevated Temperatures (ASSET)\n \nMany aspects of equipment design and operation as well as alloy selection and design are influenced by the expected lifetimes of equipment in high-temperature, corrosive gases.  Currently, many processes are limited by the inability to predict corrosion rates for equipment used in high-temperature processes. A new database is being developed to enhance the ability of the chemical industry to predict corrosion of commercial alloys.  Benefits in improving the ability to manage corrosion data for alloys in high temperature, corrosive gases will be far reaching in the chemical industry.   Better characterization of alloys under operating conditions will result in reduced energy use and maintenance, increased process safety, cost-effective use of expensive alloys in equipment designs, and improved productivity.   \n\nASSET will be an alloy selection and corrosion prediction system that includes a database linked to thermomechanical calculation programs.  The linked programs will use experimentally measured corrosion data obtained under well-controlled conditions to predict the corrosion rates for commercial alloys.   This project will include data on an extensive list of alloys exposed to a wide range of complex and corrosion gases for temperatures of 250 to 1,150oC.  The considerations being used to generate the corrosion data include oxidation, sulfidation, sulfidation/oxygenation and carburization.  The approach to this project includes improving and expanding the ASSET system and training participating companies in its use.
397537
yea it should be ok as long as it doesnt get hot cause it could burn up.
520234
I would conform to factory specs for your equipment. To do less will increase capital expenditure overall and void warranty.
1136243
You can get thermocouples with Inconel sheaths from Omega and others, these will resist low concentrations of sulfuric acid and temperatures up to about 1200 C.\n\nThere are also ceramic sleeves you can use if the temperature or acid concentration is higher, but you'll need to compensate for the measured temperature difference between the inside and outside of the sleeve.\n\nIf the temperature is not too high, you could also try an RTD, which is generally more accurate.
301282
decreasing the heat to avoid degredation of the PVC
1131804
You have the potential for galvanic corrosion.  Essentially, two metals at different potentials share electrons and one metal (the one with the higher potential) will start to erode and "plate" the other metal.\n\nTypically, using some sort of material that is a non-conductor (ceramics, rubber, etc) between the two or passivating the metal surfaces or coating the metal surfaces (prime and paint per ANSI standards) are your best options to prevent this.
663481
Depends on the pressure and temperature of the system. At low pressure and temp you can use teflon tape or plumbers putty, at high temp and pressure you need to use garlock, graphite flexes or a graphite sealing compound. you should really weld any high pressure unions and then then test prior to putting the system into use.
376549
Get a higher rating transistor and provide a generous heat sink. The general rule of thumb is that you can touch the heat sink and it should just feel warm and not burn you.