Heat Transfer
Special Flange Joints Used in Floating-Head Shell-and-Tube Heat Exchangers
Single-pass, floating-head heat exchangers are common in certain process operations, but they often use flange joints that are not covered in existing design codes. Design details, advantages and disadvantages of the different options are discussed here Shell-and-tube heat exchangers are…
NEW YEAR + NEW LOCATION = STREAMLINED OPERATIONS
We are officially settled into our new headquarters building located at 2009 Renaissance Boulevard, King of Prussia, PA. We briefly touched on the move in our end of year blog posted Dec. 30th and are excited to report…
Heat Transfer in Wiped Film Evaporators
Simulations demonstrate the complex, changing properties of materials within the evaporator. Such information can help in both designing and selecting the proper evaporator A wiped film or agitated thin-film evaporator is very effective with difficult-to-handle materials. The evaporator consists essentially…
Detecting Thermal Fluid Leaks – Thermal Fluid Leakage: Part 1 of 3
DETECTION One of the simplest leak detectors for thermal fluid is the smoke that shows up when the hot fluid is exposed to air. The amount of smoke depends on the size of the leak, the temperature of the fluid and…
Significance of Flash Fire Points
FLASH AND FIRE POINTS IN HEAT TRANSFER FLUIDS Download as a PDF file FLASH POINT DEFINED A “flashpoint” is the temperature at which a fluid generates enough vapor to be ignited (“flash”). There are two common test methods: Open Cup (ASTM D92) and Closed…
Preventing Fires in Thermal Oil Heat Transfer Systems
PREVENTING FIRES IN THERMAL OIL HEAT TRANSFER SYSTEMS PDF DOWNLOAD AT BOTTOM OF PAGE Thermal fluids have proven exceptionally safe in a wide range of industries. However, it is difficult to completely prevent fires in these systems because the necessary…
New Ways to Deal With Old Heat-Transfer Issues
New developments in heat exchangers solve common problems and enhance performance Chemical processors are no strangers to heat exchanger problems, such as corrosion, fouling and thermal expansion, which interfere with reliability of the units and adversely affect process uptime. Because…
Insulating Heat-Transfer-Fluid Piping
Heat-transfer-fluid (HTF) system piping is insulated to reduce heat loss and prevent worker contact with hot surfaces. Insulated piping minimizes the effects of changes in ambient temperature to help ensure precise control of process temperature. Proper design of the HTF…
Bio-based heat-transfer fluid for solar-thermal applications
A recently introduced heat-transfer fluid is made from corn sugar, rather than from petroleum. Known as So-Blu, the fluid was developed through a joint effort of Dupont Tate & Lyle BioProducts (Loudon, Tenn.; www.duponttateandlyle.com) and SolarUS Inc. (Branford, Conn.; www.solarus.com),…
Shell-and-Tube Heat Exchangers: The Design Cycle
Following this step-by-step approach will ensure that the heat exchanger will perform as required when finally fabricated Shell-and-tube heat exchangers are among the most commonly used equipment in the chemical process industries (CPI), especially in petroleum refineries and chemical manufacturing…