Evaluation of Loss Coefficient For Stand Alone Radiator
DOI:
https://doi.org/10.24084/repqj08.400Abstract
In the UK, domestic heating contributes to about
40% of annual energy consumption. Effective and efficient
heating systems are essential to drive the cost of heating down.
Although there are several types of heating systems, radiators
are the most popular heat emitters. Head loss in a radiator
depends on various design parameters based on fluid flow path
conditions and design of the radiator. The work presented in
this paper identifies and compares the loss co-efficient for two
most common configurations of radiators used in domestic
heating systems. These are Bottom-Bottom Opposite Ends
(BBOE) and Bottom-Top Opposite Ends (BTOE)
configurations for a standalone system. In a standalone radiator
design the loss co-efficient K value varies with the panel
configuration and flow path in the BBOE and BTOE layouts.
Similar to loss co-efficient in a pipe system the K value in a
radiator system is a function of the Reynolds number. It has
been found that double and single panel radiators have
significantly different behaviour for the two flow layouts with
higher K values for the BTOE configuration at lower velocity.
