Items Tagged with 'heat transfer'

ARTICLES

Heat Transfer: Nature Versus Math

Formulas and Assumptions Don’t Always Predict what Happens
By John Siegenthaler, PE
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The following formula has been around the North American hydronics industry for a long time: Btuh = 500 x gpm x delta T. It can be used to estimate the rate of heat transfer into or out of a device that has a stream of water flowing through it at a known flow rate, and with a measured temperature change between the inlet and outlet of that water stream.


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Papers Ponder Ammonia, Heat Transfer

Ongoing Developments Regarding Natural Refrigerants and Continued Commitment to Refrigeration Basics
By Peter Powell
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Making ammonia work in traditional HFC territory, trying transcritical CO2 systems in ice rinks, and examining ways to apply refrigeration principles to heat transfer rates were just three topics of 13 papers (five in Spanish) presented at the most recent Industrial Refrigeration Conference and Expo.


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EVENTS

Heat Transfer Fundamentals (STM 301)

2/21/13
Chicago
Subjects covered in the class include the fundamentals of steam heat transfer, different types of heat exchange equipment, heat exchange controls, and stall theory/condensate drainage. Read More

Heat Transfer Fundamentals (STM 301)

10/24/13
Chicago
Subjects covered in the class include the fundamentals of steam heat transfer, different types of heat exchange equipment, heat exchange controls, and stall theory/condensate drainage. Read More

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2014 Energy Efficiency Forum

Highlights from the 25th annual Energy Efficiency Forum in Washington, D.C.

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NEWSMakers: Mark Satterfield

Mark Satterfield, founder and CEO of Gentle Rain Marketing Inc. and author of “The One Week Marketing Plan” talks about his book and the importance of HVAC blogging. Posted on Sept. 19.

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