Process Heating articles from February 2004

Process Heating archives from February 2004

More of the best stuff: looking forward and back.(Editor's Page)
February 1, 2004... The economy is picking up, bringing increased orders and renewed optimism. The days are getting longer, with a bit more sunshine each day. And spring, or at least the vernal equinox, is little more than a month away. What better time could...

Quartz lamp infrared heater.(Products)
February 1, 2004... Model QRH1 has translucent fused quartz that provides efficient heat transfer capability. Lamp assemblies are available from 12.625 to 32.75", 500 to 2,500 W and 120 to 480 V. Assemblies include rugged aluminum housing with a polished...

Batch oven.(Products)
February 1, 2004... Electrically heated, the oven has uniform heating capabilities up to 750[degrees]F (399[degrees]C), precise temperature control and any airflow pattern. All-welded carbon steel construction ensures reliability. Steam-heated and gas-fired models...

Nonhazardous heat transfer fluid.(Products)
February 1, 2004... With a temperature range of 0 to 600[degrees]F (-18 to 316[degrees]C), nonhazarous heat transfer fluid can accommodate a range of heating or cooling requirements. Manufacturer's experience includes providing proven recommendations on...

Sludge removal fluid.(Products)
February 1, 2004... Paratherm SC is formulated to break up sludge and carbon lumps in hot oil systems, allowing them to be cleaned without tear down. The user drains the existing heat transfer fluid and replaces it with system cleaner liquid. The cleaning fluid is...

Cartridge heater.(Products)
February 1, 2004... High watt-density cartridge heater is designed for maximum watt density, temperature, heat transfer and heater life. The 0.125" Superwatt optimizes heat transfer from the resistance wire to the sheath. Suitable applications include dies,...

Tubular radiant heater.(Products)
February 1, 2004... Universal mounting clamps on its housing allows Universal 2000 to be dropped into existing systems. The element is a high temperature lncoloy 840 sheath with mica-insulated No. 10 nickel-plated flat screw terminals. The rigid aluminum extrusion...

Silicone rubber heater.(Products)
February 1, 2004... Rugged and resistant to moisture and chemicals, the silicone rubber heater is thin and flexible to allow it to be used in flat positions or wrapped around curved and irregular shapes. With a maximum operating temperature of 450[degrees]F...

Infrared predryers.(Products)
February 1, 2004... Series of infrared air heaters operates inline with coating, laminating and impregnating equipment. Web is preheated before entering the existing oven for final curing/drying, boosting line speeds and enhancing production. The line is available...

Stainless steel heat exchanger.(Products)
February 1, 2004... Welded end and primary seals on this stainless steel heat exchanger eliminate contamination. Unit has removable access panels to ease inspection and cleaning. Maximum operating temperature is 1,200[degrees]F (649[degrees]C). CIRCLE 238 ...

Thermal fluid heater.(Products)
February 1, 2004... Available in a fuel-fired coil design, thermal fluid heater provides 800,000 to 12 million BTU/hr and up to 750[degrees]F (399[degrees]C). The large coil-type unit operates in a closed-loop system pumping hot oil to and from process tanks,...

Immersion and fintube heaters.(Products)
February 1, 2004... Oil immersion and fintube heaters are designed for oil preheating, oil baths and other heat transfer fluids. The oil immersion heaters use a tubular heater design while fintube heaters have an aluminum flange welded to longitudinal finned...

Coils.(Products)
February 1, 2004... Steam, liquid heating, cooling and refrigeration coils are custom designed for specific application requirements. Copper, stainless steel or carbon steel tubes are offered with aluminum, copper, stainless steel or carbon steel fins. CIRCLE 239...

Multifunctional valves.(Products)
February 1, 2004... VGD40 Series is offered in pipe sizes from 1.5 to 6". The gas valve contains a double-seated design to provide high flow rates. A 4" valve assembly incorporating the control functions of a strainer, regulator and two safety shut-off valves is...

Vacuum oven.(Products)
February 1, 2004... Memmert Series VO operates at 68 to 392[degrees]F (20 to 200[degrees]C) and offers a short heatup time. Its microprocessor vacuum pressure controller is adjustable from 7.5 to 825 Torr (10 to 1,100 mbar). Vacuum drying is suitable for...

Chiller.(Products)
February 1, 2004... Iceman SC Series utilizes a scroll compressor that uses 50 percent less moving parts than conventional reciprocating compressors, which provides quieter operation and enhanced reliability. The chiller's hot gas bypass system stops short cycling...

10 years and still heating: a look back, and a look ahead, at combustion-related issues.(Energy Notes)
February 1, 2004... First things first: Congratulations to BNP, Linda and all the gang at Process Heating for 10 years of a first-class publication. May there be many more! [ILLUSTRATION OMITTED] When Linda asked me to write an extended column about the...

Drying technology: the last 10 years; Subtle nuances of improvement.(Drying Files)
February 1, 2004... If anything akin to getting blood from a stone occurred in the drying industry in the last 10 years, I missed it! The following is my personal evaluation of the industry over the last 10 years. [ILLUSTRATION OMITTED] Developments in...

Trends in temperature control equipment: components, wiring, interfaces, configuration, operation, support.(Heathing Highlights)
February 1, 2004... Walk round a few process plants and you will see some 20 years of evolution, starting from the tried-and-true, using discrete instruments, all the way up to supervisory control and data acquisition (SCADA) systems with color monitors and...

Top 100 processors.(Industry Snapshots)
February 1, 2004... WHO ARE THE TOP 100 COMPANIES IN THE PROCESS INDUSTRIES? CONSULT THESE LISTS TO FIND OUT. Industry: Electronics/Semiconductors Company Headquarters Hitachi Ltd. Tokyo Samsung...

Maintaining a plate heat exchanger: both reactive or proactive approaches to maintenance have advantages and disadvantages. It is up to you to decide which method is best suited to your operation.(Best of: Heat Exchangers: March 2002)
February 1, 2004... Maintaining a plate heat exchanger and its related cost is not just a good idea--it is a necessity for any successful business strategy concerned with its continued manufacturing productivity. It is safe to say that it would be rare to find...

9 things to consider when specifying a thermal fluid heater: need a source of indirect heat for your process? Instead of steam, consider a thermal fluid heating system.(Best of: Heaters: April 1997)
February 1, 2004... Processors who need to indirectly heat their process often think of hot water or steam systems. While these systems are suitable for many applications, thermal fluid heaters provide an efficient means of supplying indirect heat to one or more...

Making a great gumbo: like making a great gumbo stew, when specifying thermal components, it's essential to take a systems approach.(Best of: Temperature Sensors & Controls: October 2002)
February 1, 2004... A common mistake made when specifying thermal components is to fail to adequately consider how a component interacts with its environment and with other components in the system. For example, engineers often request heaters with very specific...