Surveying and damping heat loss from machines with high surface temperatures: thermography as a tool

Thomas Perch-Nielsen; Otto Paulsen; Christian Drivsholm

doi:10.1117/12.46434

1 March 1991 Surveying and damping heat loss from machines with high surface temperatures: thermography as a tool

Thomas Perch-Nielsen, Otto Paulsen, Christian Drivsholm

Proceedings Volume 1467, Thermosense XIII; (1991) https://doi.org/10.1117/12.46434
Event: Orlando '91, 1991, Orlando, FL, United States

Abstract

Work within the process industry is often carried out on machines with high surface temperatures (above 50 degree(s)C). This often gives rise to poor indoor climate with an unsatisfactory thermal climate for staff. These problems can be solved or reduced by radiation screening. In practice, light foil materials (films) will often prove a good and inexpensive solution for screening. However, these types of materials have varying radiation properties. A method has been evolved to evaluate quantitatively the various materials' capacity for heat radiation screening. The method is based on use of a thermographic camera. The results are compared with an indoor climate analyzer for asymmetric radiation measurements, and show good agreement. Furthermore, on the background of laboratory measurements, thermography has also been employed to ascertain heat loss from process machines. This has been used to calculate convection flows for use in designing exhaust hoods. Laboratory measurements prove that for surfaces of a simple geometry and with surface temperatures over 50 degree(s)C the heat loss can be ascertained with an accuracy of approx. 10%. These experiments were carried out at Lindab Riscancos laboratory in Farum and DTI's laboratory for testing radiators during spring 1990, as a link in a larger project concerning improvement of thermal working conditions in industrial dye works. The project is financed by the Danish Ministry of Energy.

Citation Download Citation

Thomas Perch-Nielsen, Otto Paulsen, and Christian Drivsholm "Surveying and damping heat loss from machines with high surface temperatures: thermography as a tool", Proc. SPIE 1467, Thermosense XIII, (1 March 1991); https://doi.org/10.1117/12.46434

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available