3.5 Teamwork 59
products and structures that are expected to experience a relatively large temperature swing
during their service lives.
Thermal Conductivity— Thermal conductivity is a property of materials that shows how good
the material is in transferring thermal energy (heat) from a high-temperature region to a
low-temperature region within the material.
Heat Capacity— Some materials are better than others in storing thermal energy. The
value of heat capacity represents the amount of thermal energy required to raise the
temperature one kilogram mass of a material by one degree Celsius, or, using U.S.
Customary units, the amount of thermal energy required to raise one pound mass of
a material by one degree Fahrenheit. Materials with large heat capacity values are good
at storing thermal energy.Viscosity, vapor pressure, and bulk modulus of compressibility are additional fluid prop-
erties that engineers consider in design.Viscosity— The value of viscosity of a fluid represents a measure of how easily the given fluid
can flow. The higher the viscosity value is, the more resistance the fluid offers to flow. For
example, it would require less energy to transport water in a pipe than it does to transport
motor oil or glycerin.
Vapor Pressure—Under the same conditions, fluids with low vapor-pressure values will
not evaporate as quickly as those with high values of vapor pressure. For example, if you
were to leave a pan of water and a pan of glycerin side by side in a room, the water
will evaporate and leave the pan long before you would notice any changes in the level of
glycerin.
Bulk Modulus of Compressibility—A fluid bulk modulus represents how compressible
the fluid is. How easily can one reduce the volume of the fluid when the fluid pressure
is increased? For example, as we will discuss in Chapter 7, it would take a pressure of
2.24 10
9
N/m
2
to reduce 1 m
3
volume of water by 1%, or said another way, to a final
volume of 0.99 m
3
.3.5 Teamwork
Adesign teammay be defined as a group of individuals with complementary expertise, problem
solving skills, and talent who are working together to solve a problem or achieve a common goal.
The goal might be providing a service; designing, developing, and manufacturing a product; or
improving an existing service or product.
A good team is one that gets the best out of each other. The individuals making up a
good team know when to compromise for the good of the team and its common goal. Com-
munication is an essential part of successful teamwork. The individuals making up the team
need also to clearly understand the role of each team member and how each task fits
together.Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).圀圀圀⸀夀䄀娀䐀䄀一倀刀䔀匀匀⸀䌀伀䴀圀圀圀⸀夀䄀娀䐀䄀一倀刀䔀匀匀⸀䌀伀䴀