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Effects of Inconsistent or Improper Fuel

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Biomass is a plant-based product used as fuel to generate heat and electricity. It is an eco-friendly alternative to traditional forms of energy, such as fossil fuels. Biomass includes wood products such as chips, logs, pellets, and other forestry materials such as limbs and brush.  Biomass-fired combustion systems are useful in many wood product manufacturing […]


ASME and Pressure Vessel Design Considerations for Thermal Fluid Systems

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Pressure vessels are containers used for holding gases, vapors, or liquids with pressures above or below the ambient pressure. Since the vessels operate under pressure in industrial applications, their fabrication must adhere to a strict code of construction, including the ASME code — also called the ASME Boiler & Pressure Vessel Code or BPVC. ASME, […]


Waste Heat Recovery Systems Using Thermal Fluid Systems (Thermal Oil Systems)

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Waste heat recovery systems help manage, recover, and repurpose waste heat from various energy consuming systems in commercial, industrial, and municipal facilities. As machines run, processing systems prepare goods or products, they often put off heat as a waste product. That waste heat is typically either a result of the friction of moving parts or […]


Pre-Engineered Thermal Fluid Systems vs. Custom Thermal Fluid Systems – How to Decide What You Need

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Pre-Engineered Thermal Fluid Systems vs. Custom Thermal Fluid Systems – How to Decide What You Need  Depending on the needs of a particular application, either a pre-engineered thermal fluid system or a custom-engineered thermal fluid system may be ideal. In this blog post, we’ll cover the differences between these two types of systems to help […]


Is Your Thermal Oil Heater Truly Efficient?

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Calculating your thermal oil heater’s efficiency may seem simple and straightforward, but in reality, simple calculations fail to account for all of the factors that play into the heater’s efficiency. This may cause you to overestimate a thermal heater’s efficiency and force you to pay more than you bargained for over time.  To avoid this […]


Biomass Energy Systems

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With decades of global experience in the energy industry, Sigma Thermal knows how to provide robust industrial solutions designed and engineered to meet even the most demanding client specifications. Our biomass fired energy systems provide minimal emissions and finite combustion control, all while accepting a wide range of waste fuels with varying sizes, chemical compositions, […]


5 Industrial Applications for Direct Fired Heaters (API 560 & Non API)

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Direct fired heaters use one of three possible methods for heat transfer: Radiant-convective heat Radiant heat Convection heat Radiant–convective style direct fired heaters are a popular style of heater and are used more often than not. These heaters utilize a bare tube radiant zone in combination with a bare / finned convection section. The most […]


The Advantages of Using Molten Salts for Process Heating

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Molten salts, also known as salt melts, comprise a variety of products that are used across many applications. Some applications that rely on molten salts include steel heat treating and annealing, high-temperature process heating, and thermal storage for solar thermal power plants. Depending on the needs of a specific application, different salts are available to […]


Glycol Heaters

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Certain types of heating systems, such as closed-looped thermal fluid heating systems, can use glycol to maintain heat transfer fluid to the desired temperature. While water is an ideal heat transfer medium for a certain range of temperatures, pure water has drawbacks. It can freeze below 32° F and it can corrode the internals of […]