Differences between revisions 11 and 12
Revision 11 as of 2009-10-06 16:28:40
Size: 1640
Editor: srnarf
Comment:
Revision 12 as of 2009-10-06 17:00:59
Size: 1764
Editor: srnarf
Comment:
Deletions are marked like this. Additions are marked like this.
Line 25: Line 25:
   1. Install the burner with the gas source.    1. Install the burner gas tube with the gas source.
   1. Make sure that you have the gas switch off and in the right pressure that you want before you turn it on.

Bimetallic Strip, 4A30.10a

Location:

  • Cabinet: Thermodynamics Cabinet

  • Bay: (A3)

  • Shelf: #1

(attachment photo showing the fully set up demonstration)

Description:

Insert description of apparatus, its component, what it is demonstrating.

Equipment

Location

ID Number

Bimetallic Strip

[:ThermoCabinetBayA3: TD, A3, Shelf #1]

Burner

location

NA

Liquid nitrogen

location

NA

Safety grove and glasses

location

NA

Setup:

  1. Make sure that you have all apparatuses in the table above.
  2. Install the burner gas tube with the gas source.
  3. Make sure that you have the gas switch off and in the right pressure that you want before you turn it on.

Cautions, Warnings, or Safety Concerns:

  1. Beware of the burner and the liquid nitrogen.

Demonstration:

The bimetallic strip consists of brass and stainless steel. Since brass has higher thermal [http://en.wikipedia.org/wiki/Coefficient_of_thermal_expansion expansion coefficient] than stainless steel. When it is heated by the burner, it bends to the stainless steel side. On the other hand, placed it in liquid nitrogen (77K) the strip bends in opposite which is to the brass side.

attachment other photos

attachment other photos

attachment other photos

attachment other photos

References:

  1. [http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/bimetal.html Hyperphysics]

[:ThermalProperties:Thermal Properties of Matter]

[:Demonstrations:Demonstrations]

[:Instructional:Home]

fw: BiStrip (last edited 2018-07-18 19:06:39 by srnarf)