Skip to main content Accessibility help
×
  1. Home
  2. Browse subjects
  3. Engineering
  4. Thermal-fluids engineering
  5. Content listing

Refine search

Refine search

Access:
Content type:
Publication date:
Apply   From and To filters
Subject: Show more
Journals Show more
Publishers: Show more
Societies Show more
Series: Show more
Collections: Show more

Actions for selected content:

Select all | Deselect all
  • View selected items
  • Export citations
  • Download PDF (zip)
  • Save to Kindle
  • Save to Dropbox
  • Save to Google Drive

Save Search

You can save your searches here and later view and run them again in "My saved searches".

Please provide a title, maximum of 40 characters.
Cancel
×

5487 results in Thermal-fluids engineering

Page 185 of 275

  • Preface

  • Stephen Turns, Pennsylvania State University, David Kraige, Pennsylvania State University
  • Book:
    Properties Tables Booklet for Thermal Fluids Engineering
    Published online:
    05 June 2012
    Print publication:
    13 August 2007, pp xi-xii

  • Summary

    The tables in the booklet complement the property tables in the appendices to Thermodynamics: Concepts and Applications and Thermal-Fluid Science: An Integrated Approach by Stephen R. Turns. In addition to duplicating the SI tables in these books in both SI and US Customary units, the present booklet contains property data for the refrigerant R-134a and properties of the atmosphere at high altitudes.

  • 11 - Heat Transfer Effects

  • James R. Senft, University of Wisconsin, River Falls
  • Book:
    Mechanical Efficiency of Heat Engines
    Published online:
    15 October 2009
    Print publication:
    13 August 2007, pp 117-134

  • Summary

    This chapter continues the examination of the limits on Stirling engine performance by taking into consideration, with the mechanical losses already covered, thermal limitations and losses from which real Stirling engines suffer. First covered is limited heat transfer rate into and out of the working fluid of the engine. This is modeled here just as Curzon and Ahlborn did for Carnot engines (Curzon & Ahlborn, 1975). In addition, introduced later in the chapter is an internal heat leak through the engine from the hot to the cold section governed by the same heat transfer regime. This simulates in a general way the various internal thermal losses occurring in real Stirling engines.

    HEAT EXCHANGE

    Thermal energy must be transferred into and out of a Stirling engine via heat exchangers at the hot and cold ends. A temperature gradient is required to drive the transfer; in other words, there must be a temperature differential between the source reservoir and the working fluid when it receives thermal energy. Likewise, a temperature difference is required between the engine working substance and the sink reservoir in order for the engine to reject thermal energy. The larger these differences, the greater the rate of energy transfer. This aspect of heat transfer is modeled in a general way by Newton's Law of Cooling (Bejan, 1996b).

Page 185 of 275