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Article: Calculating heat requirements: two basic heat energy requirements should be considered in the sizing of heaters for a particular application.(Heaters)
- Article from:
- Process Heating
- Article date:
- October 1, 2006
CopyrightCOPYRIGHT 2006 BNP Media. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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When sizing heaters for a given application, two heat energy calculations should be performed: startup heat and operating heat. Taking these steps before you submit the purchase order can help ensure that the heater you receive will meet the needs of your process.
Startup heat is the heat energy required to bring a process up to operating temperature. Startup heat requirement calculations that include a material change of state should be calculated in three parts:
* Heat requirement from ambient temperature to change of state temperature.
* Heat requirement during change of state (latent heat).
* Heat requirement from change of state ...