Infrastructure Engineering - Theses

Permanent URI for this collection

http://hdl.handle.net/11343/348

Filters

1967 1
1
1
1
Reset filters

Settings
Statistics
Citations
Start date: 1960 × End date: 1979 × Subject: aerothermodynamics ×

Search Results

Now showing 1 - 1 of 1
  • Item
    Thumbnail Image
    A rational approach to the thermodynamic behaviour of air chambers
    Graze, Harald Richard ( 1967)
    In the past, studies of air pockets as well as air chambers utilized the polytropic relationship; p Vn = constant, to represent the thermodynamic behaviour of the air. Since this simple equation specifies the properties of the air without regard to the accompanying physical transients, it cannot truly satisfy the thermodynamic requirements. The main aim of the present project is to indicate a rational approach which is in accordance with the condition for thermodynamic behaviour. Controlled laboratory experiments verify the general trend of the proposed theory and illustrate how erroneous the adoption of a constant value of the polytropic index, n, can be. The concept developed is further applied to a typical air chamber installation to emphasize how the pressure-volume relationships differ from other methods.