Ramboll is an engineering consultancy with a 15.000 staff internationally, headquartered in Copenhagen in Denmark.

District heating projects

‘I head up the UK district energy team and we’re looking at district heating projects across the whole of the UK’, says Paul Steen, Head of Department at Ramboll. ‘One of the biggest challenges we face in district heating is interconnecting district heating systems with consumers who traditionally have been operating on high temperature systems. We’re looking to pull those temperatures down in the district heating network because that allows us to integrate low carbon heat sources into the generation mix. But in order to do that, we need to connect to these customers who are operating at high temperatures. So the only way to do that is to pull their temperatures down. The key point is to maintain thermal comfort of the customer.’

Simulate system operation

‘The way Hysopt helps us in meeting our engineering challenges is the opportunity to simulate the system operation. That can help us in the design phase and optimising the design of the process. We see really importantly that that design tool and that design simulation can be carried through into the commissioning phase and then into the operation maintenance phase to help to optimise the way the system works once it’s installed and operating. For me there is one huge advantage, this idea of being able to simulate the temperatures in the system and understanding how these temperatures operate within a quite complex hydraulic arrangement. In the past we looked at alternative simulations, but it doesn’t look at the temperatures. It’s just an energy balance. But temperature is so important in our designs and in the operational efficiency of those systems that we really need tools like this to help us.’

Find the underlying causes of faults

‘More and more we see projects where we’re being asked to come in and help with fault finding and in those projects we’ll be able to use Hysopt to simulate the systems in operation and look at the underlying causes of faults, simulate operation and understand whether there is improvement in the efficiency and performance of that system. Fundamentally, heat networks are an ever evolving system, so they are going to need to move and react to change and we will never see a district heating network standing still.’