Chapter 2 :
Energy
Forms of
Energy
:
kinetic : Total KE =
42mV ' LKJ ]
Specific the = 42th LKJIKGJ
Power IIE =
Hanif LKW ]
potential : Total pE= mgh LKJ ]
specific pe =
gh LKJIKGJ
Power IE LKWJ
=
nigh
Internal : Total V LKJJ
or molecular specific U [ KJIKG]
sensible is
power LKWJ
later
Flow Work: Total bprfeswsuipyyvdome
=p xAxL LKJJ
specific fw =P LKJIKG)
Power F⇐densiey
Ew=pj LKW]
Flow work A pressure force fluid
" "
pushing
-
a
through a distance in an open system
E= + PE1-1LE t FW
,In an open system we
might have a
massflowraee-cn.nl
or a
watch Cli ) that we need to be
able to calculate
density
-
cross sectional
Mass flow rate in =p v. = } v A
← area
+
velocity
mass flow
Flow Role I nice
Energy
=
←
= specific energy
Power LKW]
Mechanical The form of that
Energy energy
- can
be converted into work done
machine
by a
- ④ ⑤ *
Change in specific Demean =
42C VE -
vi ) tglhs-h.lt PaI
Mechanical
Energy p
Energy
Forms of
Energy
:
kinetic : Total KE =
42mV ' LKJ ]
Specific the = 42th LKJIKGJ
Power IIE =
Hanif LKW ]
potential : Total pE= mgh LKJ ]
specific pe =
gh LKJIKGJ
Power IE LKWJ
=
nigh
Internal : Total V LKJJ
or molecular specific U [ KJIKG]
sensible is
power LKWJ
later
Flow Work: Total bprfeswsuipyyvdome
=p xAxL LKJJ
specific fw =P LKJIKG)
Power F⇐densiey
Ew=pj LKW]
Flow work A pressure force fluid
" "
pushing
-
a
through a distance in an open system
E= + PE1-1LE t FW
,In an open system we
might have a
massflowraee-cn.nl
or a
watch Cli ) that we need to be
able to calculate
density
-
cross sectional
Mass flow rate in =p v. = } v A
← area
+
velocity
mass flow
Flow Role I nice
Energy
=
←
= specific energy
Power LKW]
Mechanical The form of that
Energy energy
- can
be converted into work done
machine
by a
- ④ ⑤ *
Change in specific Demean =
42C VE -
vi ) tglhs-h.lt PaI
Mechanical
Energy p
