This paper is dived into four chapters/
Chapter 1 of the report considers the development of the theory of roughness from Nikuradses equivalent roughness principle to the concept of relative-roughness and their subsequent
incorporation into the Colebrook-White universal pipe-flow equation.
Chapter 2 presents the current design techniques for quantifying the form losses in conduits and discusses in particular the necessity to quantify as accurately as possible these losses.
Chapter 3 presents some in situ test records taken on Large Diameter conduits in Ireland. The measured flowrates and their associated pressure-head losses are tabulated and the flow regime quantified in terms of the Reynolds Number, Darcy friction factor and the associated equivalent roughness value evaluated using the Colebrook-White equation.
Chapter 4 discusses briefly the major factors to be considered by design engineers in the energy management of pipeline installations. Gravity and Pumping systems are reviewed.