On Dec 3, 1:55*am, harry wrote:
And you, sir, are thick-skilled and arguementative.
when one is attempting to do anything other than heat, conversion of
electricity to heat lowers the efficiency of the "machine" or "system"
- and when running an external compressor as a heat pump, any heat
produced by the compressor and motor which is located outside the
insulated envelope you are attemptintg to heat is a TOTAL LOSS, and
therefore reduces the efficiency of the system. *If you believe
otherwise, YOU are the "non-american" idiot. *Sorry, but I have to
call a spade a spade.
There is no difference in principle between any sort of compressor,
scroll/reciprocating/rotary. *They all do the same thing. Some are
cheaper/more compact/last *longer than others.
But all the electricity they use ends up as heat and is therefore 100%
efficient. (As it is in an absorption system too)
No other heat is created/can be created, it is merely moved around. So
no efficiency is involved.
Read the link in the previous post and try to comprehend.
The COP is limited *by the temperature difference indoor/outdoor and
the refrigerant gas, assuming correct installation..
And there is no difference between heating and cooling roles.
Any apparent difference is caused by the size of the heat exchangers
installed. (Evaporator/condensor)
I know your English is poor but read the link I posted and try to
understand.
If you put a gallon of petrol in your car you might get out 7% of
useful energy.
Efficiency =7%
If you put a gallon of oil in your heating system, you might get 75%
of available energy as heat out of it.
Efficiency =75%
If you put in one KWh of electricity into a heat pump, you might get
out four KWh.
So all the heat is not coming from the electricity, clearly you can't
get out more than you put in.
No one ever said you did.
So this is not a matter of efficiency.
Is this hard to understand?- Hide quoted text -
- Show quoted text -
It's not hard to understand, but clearly you do not.
Let's say you have two heat pump systems to evaluate one
at a time. They are connected to provide cooling to a room.
You put 1Kwh of electricity into each. System A gives you
1BTU of cooling. System B gives you 1.5 BTU of
cooling. System B provides 50% more cooling for the
same electricity used. System B is 50% more efficient
at generating cooling from electricity.
It really is that simple. That is precisely what Stormin
was talking about. It's precisely what all the SEER
ratings on systems are about. You have Googled "SEER"
by now, haven't you? What word does the second
E come from?
But, I'll go one better than that. SEER is in the USA,
so let's take a look at the UK, where you live, right?
What the hell is this:
http://www.which.co.uk/energy/saving...ciency-labels/
Products carrying an EU energy efficiency label
Washing machines, washer-dryers and tumble dryers
Fridges, freezers and fridge freezers
Dishwashers
Electric ovens
Energy-saving light bulbs
Air conditioners
An EU energy label can give you a good at-a-glance evaluation of how
energy efficient a product is.
Or how about this, from datasheets from some of those beloved
mini-splits that hang out like warts, all over the place and adorn the
facade of those UK homes:
http://www.cnmonline.co.uk/Luna-High...-pr-38347.html
The Electronic Expansion Valve (EEV) makes the refrigerant volume
reasonable in the air conditioner system, which optimises the use of
the heat exchanger and improves energy efficiency.
http://www.cnmonline.co.uk/Aircon-Lo...-pr-38192.html
Powered by TOSHIBA Compressors - energy efficiency 'A' rating - these
systems are nearly as energy efficient as inverter systems.
But it gets even better than that. Turns out the UK has a very
similar
rating to SEER. It's ESEER. The first "E" stands for European. We
all know what the third E stands for....
Sure seems like a lot there about energy efficiency, eh harry?
Which makes you, yet again, the village idiot.