1 / 21

THE SEALED LIQUIDS

THE SEALED LIQUIDS. Specific Gravity. Is a dimensionless number It is the ratio of a fluid’s density to that of Water Water has a specific gravity of 1 A fluid with a specific gravity of 0.5 weighs 1/2 as much as the same volume of Water. Specific Heat.

tahir
Download Presentation

THE SEALED LIQUIDS

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. THE SEALED LIQUIDS

  2. Specific Gravity • Is a dimensionless number • It is the ratio of a fluid’s density to that of Water • Water has a specific gravity of 1 • A fluid with a specific gravity of 0.5 weighs 1/2 as much as the same volume of Water

  3. Specific Heat • The Amount of Heat, in number of Calories, that is required to raise the Temperature of one gram of a Liquid one degree Celsius • Specific Heat is also expressed as the number of British Thermal Units (BTU’s) necessary to raise the Temperature of one pound of a Liquid one degree Fahrenheit

  4. Specific Heat • The Specific Heat of WATER is one Calorie per degree Celsius • One Calorie of heat must be supplied to a gram of WATER to raise the Temperature one degree Celsius • The Specific Heat of WATER is one BTU per degree Fahrenheit • One BTU of Heat must be supplied to a Pound of WATER to raise the Temperature one degree Fahrenheit

  5. Vapor Pressure • Is also known as the Boiling Point • Is the Pressure Below which a liquid at a given temperature will become a gas • Is the Pressure Above which a gas will become a liquid

  6. Vapor Pressure What is the Vapor Pressure of WATER at Sea Level ? What is the Coldest Temperature at which you can Boil WATER?

  7. Viscosity • VISCOSITY: Property of a FLUID that tends to prevent it from Flowing when subjected to an Applied Force. • High-ViscosityFluids Resist Flow; Low-ViscosityFluids Flow Easily. • The Tenacity with which a Moving Layer of Fluid drags adjacent Layers of Fluid along with it Determines its Viscosity!

  8. Viscosity VISCOSITY EQUALS LUBRICITY WHEN DISCUSSING MECHANICAL SEALS

  9. LIQUIDS CHANGING STATE • FREEZE • SLUSH • VAPORIZING / COLLAPSING • POLYMERIZING • SHEAR SENSITIVE • THIXOTROPIC FLUIDS • EXOTHERMIC REACTIONS • COKING / REACTING W ATMOSPHERE

  10. HOMOGENEOUSLIQUIDS • 1. HAVING UNIFORM COMPOSITION: A Liquid having a Uniform Composition.

  11. LIQUID MIXTURES • 1. BLEND OF INGREDIENTS: A Liquid Substance containing several ingredients combined or blended together. • 2. CHEMISTRY: Liquid Substance formed without Chemical Reaction: a substance consisting of two or more substances that have been combined without chemical bonding taking place

  12. LIQUID COMPOUNDS • 1. CHEMISTRY: A Liquid Substance Formed by the Combination of Two or More different Liquids + Substances

  13. LIQUIDS WITH DISSOLVED SOLIDS • 1. CHEMISTRY: A Liquid Substance with One or More Solids Dissolved in it.

  14. LIQUIDS WITHUN-DISSOLVED SOLIDS • 1. CHEMISTRY: A Liquid Substance with One or More UN-Dissolved Solids or Particles in it.

  15. LIQUIDS WITHDISSOLVED GASSES • 1. CHEMISTRY: A Liquid Substance with One or More Dissolved Gasses in it. • A Liquids Ability to Absorb a Gas is Inversely Related to Temperature

  16. SOLIDS / PARTICLES IN LIQUIDS GENERALLY Specific Gravity of Particles Specific Gravity of Liquid • A Number >1 = Particles will Displace Liquid Toward the Rotating Shaft • Stated Differently Particle is Centrifuged Away from the Shaft

  17. SOLIDS / PARTICLES IN LIQUIDS GENERALLY Specific Gravity of Particles Specific Gravity of Liquid • A Number <1 = Liquid will Displace Particles Toward the Rotating Shaft • Stated Differently Liquid is Centrifuged Away from the Shaft

  18. SOLIDS, PARTICLES, & FLAKES IN LIQUIDS • The Behavior of a Solid, Particle, or Flake Inside a Pump Stuffing Box is Highly Dependent on its Shape. • The Solid’s Shape and Fluid Turbulence Pattern Inside the Stuffing Box will determine its behavior

  19. Seal Cavity Flow Components • Axial flow Driven by rotating radial surfaces like the back of the seal • Rotational (Angular Flow) Developed by shaft rotation.

  20. Rotational Flow • Abrasives Driven out to the bore • Air Driven in to surround the shaft

  21. ENDTHE SEALED LIQUIDS

More Related