Heating Theory

SKU: RVI-11498Duration: 20 Minutes

Pay-per-view (PPV) format perfect for individual users.

Get immediate access to this interactive eLearning course online. Must be used within 30 days, expires 48 hours after launch.

Language:  English

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Course Details

Specs

Training Time: 20 minutes

Compatibility: Desktop, Tablet, Phone

Based on: Industry Standards and Best Practices

Languages: English

Did you know without proper control of boiler water chemistry, corrosion, scale buildup and fouling of boiler tubes can occur which will impact boiler efficiency and may result in tube failures? Boilers are a common device for converting fuel into heat by burning fuels for heating water and generating steam for heating and powering equipment. The two general types of boilers are hot water boilers and steam boilers. The water used in boilers has to process the correct chemical makeup to prevent corrosion, scaling and fouling of boiler internal parts. This interactive online course covers the theory of heat transfer. It will cover the three laws of thermodynamics, methods of heat transfer, how heat is measured and the pressure-temperature relationships in heating systems.

Learning Objectives

  • Describe theory related to BTU transfer in heating systems
  • Describe impact of thermal energy transfer related to improper water chemistry
  • Identify factors that affect corrosion in boilers

Key Questions

The following key questions are answered in this module:

What are the three laws of thermodynamics?
1st- heat can neither be created or destroyed. 2nd- heat flows from a warmer place to a cooler place. 3rd- ensures that a closed system will eventually reach thermal equilibrium.

What is heat?
Heat is the amount of energy in matter.

What is conduction?
Conduction is a process by which heat flows from a region of higher temperature to a lower temperature within a medium or between different mediums in direct physical contact.

What is radiation?
Radiation is a process by which heat flows from a higher temperature body to a lower temperature when the bodies are separated by space, even when a vacuum exists between them.

What is convection?
Convection is the transfer of heat from a surface by means of a fluid.

Sample Video Transcript

Below is a transcript of the video sample provided for this module:

To combat corrosion in hot water boiler systems, several steps can be taken to minimize corrosion. Ensure the system is leak free to control the amount of makeup water containing oxygen and contaminates. Sodium nitrite is the most widely used corrosion inhibitor in closed loop systems such as hot water boiler systems. Sodium sulfate and sodium bisulfite are often used as oxygen scavengers for steam boiler systems and hot water boiler systems. For an effective chemical treatment system of boiler water, the PH in steam boiler water should be maintained between 9 and 11. PH for hot water boiler water should be kept between 8.5 and 10.0. The PH of condensate return water for steam boiler systems should be maintained at 7.0
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