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Archives :: Processing & Handling :: Thermal & Energy Management

Displaying 41 - 60 of 405 stories.
December 1, 2011
Thermal Fluid Systems: Design Considerations
Thermal fluid systems that both heat and cool are often utilized in batch processes. They are also often found in continuous processes where heating is required at one point in the process and cooling (often for the purpose of heat recovery) is required in a different part of the process. Because these systems utilize the same fluid for both the heating and cooling process, they are collectively referred...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/heat_transfer_media/Thermal-Fluid-Systems-Design-Considerations_8781.html
December 1, 2011
These ceramic mosaics can line complicated geometries
Kalocer high-alumina ceramic mosaics can line a variety of plant components quickly and easily. Kalocer mosaics come in a variety of sizes and shapes, including square and...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/kilns_ovens_and_furnaces/These-ceramic-mosaics-can-line-complicated-geometries_8733.html
December 1, 2011
Transporting Energy Through Time
Modernizing the world’s power grids represents a key infrastructure goal for economic growth. Large-scale, energy-storage technologies offer the opportunity to optimize the efficiency of the next-generation power grid and extend its capabilities. Renewed attention on energy storage systems for the grid has given rise to a host of emerging technologies aimed at more effectively transmitting...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/power_generation_and_transmission/Transporting-Energy-Through-Time_8746.html
November 1, 2011
Energy Benchmarking
In today’s climate of increased energy prices and tightening environmental emissions requirements, petrochemicals producers around the world are continuing to focus on optimizing energy consumption at their facilities. Over the past few years, while energy prices have been increasing, petroleum refiners and chemicals producers have made progress toward improved, overall energy performance by...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/Energy-Benchmarking_8618.html
November 1, 2011
Energy Optimization Using Pinch Analysis
Pinch analysis is a systematic method to maximize energy recovery from process streams entering and exiting process equipment. Using this method, the minimum thermodynamic requirements for hot and cold utilities can be calculated for a process. This is useful to determine areas where savings can be realized and where savings are not available. It is a method that can be used during the design of a process...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/Energy-Optimization-Using-Pinch-Analysis_8624.html
November 1, 2011
A superheated-stream generator without pressure vessels
The HGA-S-CX1300 system is an innovative high-temperature steam-generation device that instantly produces high-quality superheated steam at 1 atm pressure. Maximum steam temperatures of...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/boilers_and_steam_handling/A-superheated-stream-generator-without-pressure-vessels_8659.html
October 4, 2011
Dow and Argonne National Laboratory collaborate on new battery materials
The Dow Chemical Company (Midland, Mich.; www.dow.com) and the U.S. Department of Energy's (DOE) Argonne National Laboratory (Argonne, Ill.; www.anl.gov) have signed a memorandum of understanding (MOU) for a multi-year research collaboration to jointly develop the next generation of materials for advanced battery technologies. Dow and Argonne will be collaborating on several new materials...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/power_generation_and_transmission/Dow-and-Argonne-National-Laboratory-collaborate-on-new-battery-materials_8564.html
October 1, 2011
Steam generator operation and thermodynamics
A well-operated steam generator can save money. In a steam-driven turbine system, water is heated in the steam generator to produce high-temperature, high-pressure steam. Steam is then expanded in a turbine to produce electricity from a generator. Turbine steam is condensed back into water in the condenser. A pump then returns the water to the steam generator. Engine thermodynamics Theoretically, the most...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/boilers_and_steam_handling/Steam-generator-operation-and-thermodynamics_8512.html
October 1, 2011
Compact Reactors Boost Productivity
Velocys Inc. (Plain City, Ohio; www.velocys.com), a part of the Oxford Catalyst Group (Abingdon, U.K.; www.oxfordcatalysts.com), has been awarded the Kirkpatrick Award for Chemical Engineering Achievement from Chemical Engineering. The company’s winning technology features microchannel reactors for producing synthetic fuels. The award was announced at a reception September 12 in Houston. The...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/fuels/Compact-Reactors-Boost-Productivity_8516.html
October 1, 2011
A window into kettle reboiler secrets
Thermosiphon reboilers are the new standard in petroleum refineries and chemical plants. Nevertheless, approximately 50% of the world’s reboilers are kettles. In the realm of heat transfer, kettle reboilers have not been understood well. Last month, at ChemInnovations, however, Pete Parker, FRI’s president and my supervisor, cracked the knowledge barrier with insight from nothing other than...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/heat_exchangers_condensers_and_coolers/A-window-into-kettle-reboiler-secrets_8501.html
October 1, 2011
A new approach to maintaining tubular heat exchangers
At the 2nd Annual ChemInnovations Conference and Expo (Houston; September 13–15), Hemi-O Technologies LLC (Corpus Christi, Tex.; dixonengineering@gmail.com) introduced its patent-pending technology that enables external access to individual tubes in a heat exchanger while the exchanger is in service and operating at full capacity. The so-called Hemi-O (heat exchanger maintenance and inspection...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/heat_exchangers_condensers_and_coolers/A-new-approach-to-maintaining-tubular-heat-exchangers_8513.html
September 28, 2011
Court decision indicates that EPA's Boiler MACT stay is at risk, ACC says
Yesterday, U.S. District Court judge Paul Friedman denied a legal motion by the U.S. Environmental Protection Agency (EPA; Washington, D.C.; www.epa.gov) that would have prevented environmental groups from challenging EPA's stay of proposed changes to the Maximum Achievable Control Technology (MACT) standard for industrial boilers. While the decision was procedural, it suggests to ACC that the stay is...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/boilers_and_steam_handling/Court-decision-indicates-that-EPAs-Boiler-MACT-stay-is-at-risk-ACC-says_8520.html
September 27, 2011
Codexis and Raizen to improve first-generation ethanol process in Brazil
Codexis, Inc. (Redwood City, Calif.; www.codexis.com) and Raizen Energia S.A. (Sao Paulo, Brazil; www.raizen.com) have signed a joint development agreement to develop an improved first-generation ethanol process with enhanced performance economics. Raizen is a joint venture between Shell and Cosan, and is Brazil's largest sugar and ethanol producer. Under the terms of the agreement, Raizen and Codexis will...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/fuels/Codexis-and-Raizen-to-improve-first-generation-ethanol-process-in-Brazil_8499.html
September 26, 2011
ColBiocel selects Chemtex technology for cellulosic ethanol production in Colombia
Chemtex (Wilmington, N.C.; www.chemtex.com)  has entered into a Term Sheet Agreement with Colombiana de Biocombustibles Celulósicos...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/fuels/ColBiocel-selects-Chemtex-technology-for-cellulosic-ethanol-production-in-Colombia_8495.html
August 1, 2011
Boiling uncertainty
Last year, the U.S. Environmental Protection Agency (EPA;Washington, D.C.; www.epa.gov) proposed new emissions standards for hazardous air pollutants (HAP) emitted by industrial boilers and solid-waste incinerators (CISWI) based on the performance of the maximum achievable control technology (MACT). The so-called “boiler MACT” final rules were signed by the EPA Administrator on February 21...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/boilers_and_steam_handling/Boiling-uncertainty_8284.html
August 1, 2011
For cleaning applications, simply mix steam and water
The CSF Steam Water Mixer reliably and safely delivers hot water at the required temperature for cleaning or wash-down applications, especially those in the food and...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/boilers_and_steam_handling/For-cleaning-applications-simply-mix-steam-and-water_8342.html
August 1, 2011
Eliminate downtime with a skid-mounted pair of PHEs
The GEASkid version of the NT Series is a plate heat exchanger (PHE) module with permanent standby function, comprising two completely independent PHEs designed to eliminate machine downtimes caused by maintenance. The GEASkid was developed...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/heat_exchangers_condensers_and_coolers/Eliminate-downtime-with-a-skid-mounted-pair-of-PHEs_8332.html
August 1, 2011
Heat transfer system cleaning
A well designed and operated heat-transfer-fluid system is a key feature of a safe, reliable and cost-effective heating design. However, problems can arise if the heat-transfer fluid becomes heavily degraded or the system is allowed to accumulate solids and other process contaminants. These problems include the following: • Reduced heat-transfer rates • Diminished fuel efficiency • Flow...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/heat_transfer_media/Heat-transfer-system-cleaning_8303.html
July 1, 2011
Heat Exchangers for Hot Acids: Material Selection
To make the modern materials we use every day, such as plastics, metals, electronics, pharmaceuticals, fuels and so on, strong acids are used to convert the earth’s raw materials into modern materials. In fact, so many tons of acid are used (200 million metric tones of sulfuric acid annually worldwide) that the gross domestic product (GDP) of most industrial nations are directly correlated to...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/heat_exchangers_condensers_and_coolers/Heat-Exchangers-for-Hot-Acids-Material-Selection_8160.html
July 1, 2011
Homogeneous drying achieved with this oven
The VD and VDL drying ovens can dry samples completely without residues, scaling or oxidation, thanks to an innovative control concept. The temperature is controlled over the entire range...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/kilns_ovens_and_furnaces/Homogeneous-drying-achieved-with-this-oven_8159.html
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