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Thermal Management

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Engineering Solutions for Everyday Problems

As environmentally-conscious engineers, we here at Glew Engineering do what we can to save energy and resources both around home and around the office.  This might mean choosing products that are more environmentally friendly or energy-efficient.  It might mean using our surroundings to our advantage, like pulling cold air through a home or office [...]

By | 2016-12-18T14:38:28+00:00 August 22nd, 2016|Mechanical Engineering, Thermal Management|0 Comments

Layered Composite Heaters for Semiconductor Processing

Figure 1: Composite layered heater from patent US 9,224,626 Figure 1: Composite layered heater from patent  US 9,224,626 B2 Our eponymous Dr. Glew, P.E. recently contributed to a new patent on an advanced thin-film electric heater, titled “Composite substrate for layered heaters”.  Watlow Electric, based in St. Louis, hired Glew Engineering and Dr. Glew [...]

Window Energy Efficiency: Solar Heat Gain and Visible Transmittance

Figure 1: Sunlight on high-rise windows In my last blog post, I wrote about the conduction and radiation of thermal energy through windows and the thermal transmittance value, called the U-Factor, that characterizes that heat transfer.  The U-factor is useful in evaluating window performance and making wise decisions when specifying components for a building, but [...]

Window Energy Efficiency: Thermal Transmittance

Figure 1: Windows catching sunlight By Magda S [FreeImages.com Content License] In our last blog post, I wrote about the thermal resistance (R-value) and transmittance (U-factor) of insulation and windows.  The R-value represents how well a material prevents heat transfer through its thickness, and U-factor is its inverse, representing how much heat a material will conduct [...]

Energy Efficiency in Building Materials, Insulation and Windows

Figure 1: FLIR image of two houses showing energy loss. Colors towards red on the scale indicate warmer surfaces and more energy loss. The basic principle behind thermal insulation is simple to understand.  The harder it is for heat to travel through a material, the better insulator that material will make.  In this blog, I’m [...]

Thermal Expansion in a Glass and Aluminum Window: Part 2

Figure 1: Simplified model of an aluminum-glass window In last week’s last blog, we explored the causes and effects of thermal expansion in solid materials.  The expansion and contraction of a material based with temperature must be considered in mechanical engineering design projects, since it can impose high and potentially-damaging internal stresses.  We used a simplified aluminum-framed window to demonstrate [...]