Stainless steel finned tube heat exchanger design for waste heat recovery
Date
2006
Journal Title
Journal ISSN
Volume Title
Publisher
Energy Research Centre, University of Cape Town
Abstract
Around the world the implementation of heat recovery
systems play an increasingly important role in
the engineering industry. Recovered energy is
utilised in production plants (especially in the food
industry) and saves companies millions in expenses
per year. Waste heat recovery associated with
hydrocarbon combustion in the transport industry is
identified as a significantly under-utilised energy
resource. The aim of this project was to investigate
the recovery of waste heat in a small scale system
for the purpose of electrical conversion in order to
serve as a secondary energy source. A theoretical
analysis concerning the design and construction of
the system, utilising researched theory and a control-
volume-based simulation program of the recovery
system, is presented. It was found that heat
exchangers for the required duty are not readily
available in South Africa. A high pressure, cross
flow, stainless steel finned tube heat exchanger with
a water side pressure rating of 2 MPa was therefore
designed and constructed. By using the exhaust
gases of a continuous combustion unit as an energy
source and water as the working fluid, efficiencies of
up to 74% in direct steam generation testing were
obtained.
Description
CITATION: Wipplinger, K. P. M., Harms, T. M. & Taylor, A. B. 2006. Stainless steel finned tube heat exchanger design for waste heat recovery. Journal of Energy in Southern Africa 17(2):47–56, doi:10.17159/2413-3051/2006/v17i2a3281.
The original publication is available at https://journals.assaf.org.za/index.php/jesa
The original publication is available at https://journals.assaf.org.za/index.php/jesa
Keywords
Stainless steel, Heat exchangers, Waste heat
Citation
Wipplinger, K. P. M., Harms, T. M. & Taylor, A. B. 2006. Stainless steel finned tube heat exchanger design for waste heat recovery. Journal of Energy in Southern Africa 17(2):47–56, doi:10.17159/2413-3051/2006/v17i2a3281.