The Art of Measuring in the Thermal Sciences

2020 ◽  
Keyword(s):  
Resonance ◽  
2009 ◽  
Vol 14 (12) ◽  
pp. 1171-1182
Author(s):  
C. Balaji ◽  
T. Thaseem

2018 ◽  
Vol 144 (1) ◽  
pp. 61-89 ◽  
Author(s):  
Ewan Jones

This essay argues that the cultural reception of thermodynamics in the late nineteenth century reformulated the concept of rhythm in an attempt to manage, mitigate, or acknowledge the problem of waste. Having demonstrated an overlooked historical dialectic between the thermal sciences and prosody, I conclude by reading A. C. Swinburne’s Tristram of Lyonesse to demonstrate how rhythmical excess represents a positive expressive resource.


Author(s):  
Samaira Aziz ◽  
Iftikhar Ahmad ◽  
Sami Ullah Khan ◽  
Nasir Ali

The growing interest in emerging nanotechnologies has led the scientists towards to investigate the interaction of nanoparticles with fluids. Current continuation endeavors the rheological analysis for the Oldroyd-B nanomaterial across periodically accelerated and heated surface. The interesting features of thermophoresis and Brownian motions are presented by following famous Buongiorno nanofluid model. Further, Cattaneo–Christov heat and mass flux expressions are exploited to determine the characteristics of thermal and mass diffusions. As a novelty, the variable thermal conductivity and heat absorption/generation consequences are also utilizing the energy equation. The flow model has been developed by using concerning boundary layer equations which are converted into dimensionless forms by using appropriate variables. The analytical solution of such transmuted equations is computed by using homotopy analytic method. Various physical parameters of interest are scrutinized through various graphs. The observations from analysis convey a declining change in nanofluid concentration and temperature with variation of thermal and solutal relaxation parameters, respectively. Moreover, thermophoresis parameter causes an enhancement of concentration profile while a retarded concentration profile results with increment of Schmidt number. The obtained theoretical results reflect significant applications in cooling and heating systems, thermal sciences, manufacturing processes, extrusion systems, enhancement of transport of energy and heat resources.


2005 ◽  
Vol 25 (16) ◽  
pp. 2497-2498
Author(s):  
Keith Cornwell ◽  
Peter Kew
Keyword(s):  

2018 ◽  
Vol 90 (2) ◽  
pp. 344-350 ◽  
Author(s):  
Yasin Şöhret ◽  
T. Hikmet Karakoc

Purpose It is essential to develop more environment-friendly energy systems to prevent climate change and minimize environmental impact. Within this scope, many studies are performed on performance and environmental assessments of many types of energy systems. This paper, different from previous studies, aims to prove exergy performance of a low-emission combustor of an aero-engine. Design/methodology/approach It is a well-known fact that, with respect to previous exergy analysis, highest exergy destruction occurs in the combustor component of the engine. For this reason, it is required to evaluate a low-emission aero-engine combustor thermodynamically to understand the state of the art according to the authors’ best of knowledge. In this framework, combustor has been operated at numerous conditions (variable engine load) and evaluated. Findings As a conclusion of the study, the impact of emission reduction on performance improvement of the aero-engine combustors exergetically is presented. It is stated that exergy efficiency of the low-emission aero-engine combustor is found to be 64.69, 61.95 and 71.97 per cent under various operating conditions. Practical implications Results obtained in this paper may be beneficial for researchers who are interested in combustion and propulsion technology and thermal sciences. Originality/value Different from former studies, the impact of operating conditions on performance of a combustor is examined from the viewpoint of thermodynamics.


Sign in / Sign up

Export Citation Format

Share Document