This Course Covers:
1. Watt is energy?
What are Joules? What exactly are Kilowatts? How do they apply to thermal energy and what is Delta T?
This section highlights the difference between power and energy and frames how we are going to measure the energy we are trying to create, store, and distribute. As well as description of some of the terms and measurements used within the industry and this course
2. Heat loss
R-values, K-values, U-values. What these are and how we use these to calculate the thermal energy required for a building. An essential part of the two-part method of creating a low temperature system.
• How much ventilation is required for each room and what this means for heat loss.
• What happens to heat loss throughout the year
• Basic rules of thumb for quotations and calculations on the fly.
3. Mass flow rate
This introduces and explores the holy grail of heating, mass flow rate which is the relationship between flow and energy including:
• Specific heat capacity of water
• Magic Mo’s triangle
4. Velocity pipe sizing
What the difference between flow rate and velocity is how we measure and calculate velocity
The velocity triangle
• Pipe sizing
• Velocity, what is it and what it means and how to calculate
• Magic triangle
5. Pipe sizing, Pressure loss, and pump sizing
Pipe sizing, a brief overview of pressure losses, and how to calculate pump head requirements, system resistances, residual head graphs.
• Pressure loss
• Turbulent and laminar flow
• System resistance
• Index circuit
• Pump curves
• Residual head
• System curves
6. Emitter sizing
How to size your emitters (radiators) and the relevance to over or under sizing. The relevance of power and temperature.
• MW-AT-DT – What is it and where do I use it?
• Quick hand adjusters
What are we controlling and what are the variables that mean we need controls? What’s wrong with older methods of ‘on/off controls?