During the first phase of the pilot project, the specialists at the institute investigated the heating and internal heat supply systems of five buildings that functioned as potash ore transshipment nodes. The project covered a total area of more than 2,000 m2 plus five inclined transport galleries with a total length of more than 1 km.
The first step in the implementation process was the creation of models of the buildings and structures. The basis for this was architects’ drawings, building permits and new plans, alongside the thermal characteristics of building shells which were the result of measurements. Using Autodesk Revit, the building shells were created and information on the thermal conductivity of their components collected for further calculation in the building model.
Then, in the second step, the heat losses from buildings and structures to the environment and the resulting heat load were calculated. This calculation was done using LINEAR Building software in accordance with the requirements of the Russian standard SP 60.13330.2016. The functions of LINEAR Building allow the preparation of the 3D building model for analysis and then the creation of a calculation model. This model was used as the basis for the thermal load calculations, which were made using LINEAR Building Heating.
The subsequent third step consisted of modelling heating systems and the internal heat supply in the Revit model. Information on the thermal output and pressure loss were transferred from technical data sheets to the components of the model.
The main task in the development of systems is of course to achieve stable thermal and hydraulic operating states through the correct distribution of the heating medium in accordance with the determined thermal loads. In this fourth step, the hydraulic calculations made using LINEAR Analysis Heating helped to make the right decisions. In the context of the calculation for the heat supply systems, the optimum locations for equaliser valves, their size, design parameters and settings were determined and recommendations were made regarding the alteration of the piping routes in existing facilities to increase their effectiveness. Finally, the set values of all regulating valves were automatically determined and output.