In the last video I derived this blackbody limit
which is %uh given by death expression Android arriving this
a blackbody them it I especially took into account
the in kobe's which are associated with the adsorption
of for solar radiation into the said in kobe which is associated with a mission
to offer
radiation from a blackbody radiation from that said
and this was the expression that I derive towards the end of the life story
O
and a you over analyze this expression the
I live or because I find it away resting and you might be thinking what's what's
very interesting
the read this expression so before so far this
expression over to find out what is the maximum value of efficiency I can get
there from this expression
so I see that though you know in this expression
their the a temperature ambient temperature to intrude at which I know
it to be a
3 indicating that the temperature of us %uh go ahead
which I I know to be a 60 then K
so the the these two are good qualities
but it also has a into play this temperature up the Fed
the how these two expression the which are multiplying to give me these
efficiency
they're behaving no differently as a to you that impression this is a fine clear
that they're pretty rough the says they fighting
me that them pay to the said this store with st. which one minus
DEA by Keith the way they increase on the other hand if the second on Twitter
my declining over this stuff I've done
that this storm whale essentially if I trees my
activator this tone with the increased and one mind as TCU by
PSA's 2-for-4 with a victory so I have a visa opposition
the oppositely behaving does one is a dealing with the
defeat and no one is a dick leaving love it DC
security there would be a optimum optimum
templates are the set up to value of DC I'd which %uh this
expression though is a if maximum to let me let me know let me off I am to what
is the
Mike from for was a maximum value of that
so I know that overexpression its up for this blog where it's at one minus
d DEA man with just three earned it
and then the temperature of the said what I did order by
X and the this is multiplied by
one later if pics to the power for
and divided by Sixto their Twitter that the
templates or the Sun best bar for so I need to find note is a maximum value
for this expression so I'll use my favorite and in no way from haifa
up like this expression into it
and you know it gives me a plot of this
behave and if I
ago or hair so it gives me that the maximum by the offer this expression
as the in fact %uh pawing to 85 a
35 and this makes a occurs when this
X as a 2005 %uh 44
3 2005 44 .3 for select me
let me a copy this the information or hair
so what this so is not telling me is that
the maximum value of my efficiency
to maximum value of my efficiency is approximately 85 up going to
Boeing some forces 85.2 for both had
and this a maximum occurs when the temperature of the says
is in fact a is the let me go back again
check that this other than this temperature oh the said as a
2005 44 get away
so this template or the self to update in this to mexico efficiency
is the ninth day 50 that is assessed for this expression is ending that my
said it has to be at a height of a survey hide them better if you think
about
254 Kevin this is much higher than the melting point of
moist semiconductors and in the
if I do in fact they ate my said at that temperature
then this efficiency would be like to and this a maximum value of efficiency
is a own the eighty-five percent so this is a very important as a
let me put that data box again but nothing that
I find this so this expression to be very interesting the
a gated is a that if you look at this expression
it had this one minus DC by DSL race too far for dog
and this is very of coming for that you know the the energy of
radiation which is a coming in from the Sun and this energy flux has that ever
greater dependence of
DSL race to power up for and then the
energy flux which is a which has evaded out-tough from that first set a record
at
us a black body at greater DC and that is if like Heather dependence of
as the dependence of Fort the part of the temperature out that said
so this one minus the DC by DSL race too far for
this does your hair SSD is a taking into a car
to offered these two energy flux as
Norf phone were interesting is that this is you know this is kinda love the
energy that energy that would be abductor
by this said if I look at this other expression which in my the playing over
here
so this is owen -38 by PC
so this is similar to a similar to a car
to injure know if there's a way similar to a condo in general and
and was saying is that doesn't have to process as happening over here
so I can you know I can think of this said it as a
observer or hair and this a exhaust the
the radiation coming out from the say that gives out this
radiation and then where is the net net abduct can be knockin or data into this
the far off from work by using the
I have a car no engine go ahead so this is you know it's a it's so
pointing to this deeply embedded a
up the embedded into this far but I D E the
is this Carnot engine and this a observer which is a
observing this odious and now from said
and this the UF if we end up ready to this %uh for the time this particular
manner
it gives rise to a new field of you known you for you to of
energy a a solar energy conversion was disguised as that term before the way
takes
then this that move forward a cure typically have a you
play said the other between the Yarra PV system
you have a forward a custom your hair
and this would be placed at a temperature of a minute this would be
you know connected to it with a man
and you have observer or hair
you know and love her or hate her and then of good
the the Sun is located you know is a is giving out to the third radiation
so that sa but they were greater in the Thursday said to buy this idea de fluxes
bad and so the the ATF likes this other flux over to the coming from the Sun and
then the fluctuates a
Dave it's out and then there is this the car doing gym
which then take this energy from the observer
and than words that day do useful work at a very high efficiency
and that this observer is of course at a much higher temperature
as you can to see from this a relationship or hair
and we'll talk about term over or take the in more detail later
but you can see though it is enough for total for the way takes as embedded a
do this stuff for me