Part 7: Answers
In this chapter, you will find the answers to the questions in the different chapters of Part 7.
Thermal response tests
Knowing the ground properties (as well as the borehole resistance) is a prerequisite of good borefield design and the best way the measure them in situ is with a thermal response test or TRT in short. In this chapter, this measurement is explained together with how it can be analysed in GHEtool Cloud.
Calculate required borefield size and depth
The design of shallow geothermal borefields is always a little bit trial and error, but what if it is not? In this chapter, we’ll introduce the automated method that allows you to calculate the required borefield depth and size simultaneously.
Calculate required borehole depth
Calculating the required borehole depth is one of the most essential methods within the domain of borefield design. In this chapter, we will give you an overview of the different methods that are available in literature and discuss the gradient error.
Average, inlet and outlet temperatures
Before we can start talking about the design and sizing of borefields in GHEtool, it is important to revisit our discussion on the temperature profiles once again and discuss the difference between the inlet, outlet and average fluid temperatures.
Introduction part 7
Welcome to the seventh part of the course ‘Design borefields with confidence.’