The most easily observed examples of thermal expansion are size changes of materials as they are heated or cooled. Almost all materials (solids, liquids, and gases) expand when they are heated, and contract when they are cooled. Increased temperature...

Thermal expansion is the change in size of an object as the temperature changes. Normally, as the temperature increases, the size of an object also increases. Conversely, the object will shrink as the temperature drops. Look at electrical power lines...

In physics, thermal expansion is the tendency of matter to change in volume in response to a change in temperature. When a substance is heated, its constituent particles move around more vigorously and by doing so generally maintain a greater average...

FEATURE FOCUS Horizontal surface cracks in porcelain signal a thermal coefficiency problem. In this interview, Ken Chizick, CDT, RDT, offers preventive measures and a compatibility test for avoiding porcelain/alloy mismatches. Q: Why is a solid knowledge and understanding of the coefficient of...

Proper Sizing, Installation, and Adjustment Help Keep Down Callbacks. Metering the refrigerant flow to the evaporator is the sole function of a thermal expansion valve (TEV). What's critical is that it must meter that flow at the same rate it is being...

The biggest and baddest 997 is here. Its twin-turbo flat-6 engine pumps out 480 horsepower, and the car as a whole is a technical achievement that shows Porsche is still king when it comes to refined performance . After a technical briefing at the Porsche...