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Author Topic: Can a heat pump system generate electricity from temperatures over 0 Kelvin?  (Read 13064 times)

Offline jccc

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Re: heat pump system to generate electricity from T>0K?
« Reply #25 on: 29/06/2015 16:51:49 »
Just to nuance myself after thinking this over for another 10 minutes: designing the right heat pump would not just be difficult, it would be impossible. It would be an impossible carnot cycle and violate the 2nd law of thermodynamics...

Too bad.

not bad at all.

the law stands, everywhere, any time.
 

Offline AL-azzeh Tareq

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Re: heat pump system to generate electricity from T>0K?
« Reply #26 on: 28/02/2016 18:55:25 »
I believe I have developed a system where green, renewable and free energy is possible, but before I go any further, let me introduce myself and list my credentials in order to substantiate my claims.
My Name is Tareq Al-Azzeh, I am a mechanical engineer with more than 17 years of electromechanical, Maintenance, Construction, and Management experience. Holder of
B.Sc. Degree in Applied Engineering major in Mechanical Engineering Minor Hydraulic and Thermal Machines from Amman University Collage for Applied Engineering (1992 –1997) I am a Member of Jordan Engineers Association and a member of Project
Management Institute PMI Working as Chief Engineer Movenpick Hotel and Resorts worked as MEP coordinator in China State Construction Engineering Corp. in Abu Dhabi, worked as MEP Coordinator in Emirates Falcon Electromechanical Co.LLC and worked as chief engineer in Oasis Hotel Casino Resort, and InterContinental Hotel

The system I have theorized, and it is at present just a theory, involves the unlimited potentials of the refrigeration cycle

The result, should my theory work as I expect, would be green, free and renewable energy. It would “capture” the wasted energy used during the cooling processes and harvest the condensate water for use elsewhere.

The first application of the theory is to use the cycle for heating and not for cooling, the process will still have a cooling effect

Using the simple cycle as a boiler for heating water instead of burning fuel; fuel burners for heating purposes should have been obsolete long time ago. It is my opinion is that the heat pumps (refrigeration cycle) has been used commercially less than 2% of its potentials. If 1% of the monies spent on other forms of energy are directed towards the development of my theory, the world would solve its energy problems and produce potable water as a byproduct.

That was a simplified application of the theory, a complicated, more detailed description of the theory and how it will produce electrical power, heating, cooling and water production for free is shown in the sketch below.

When my system is adopted it will change the world and the way of life of its inhabitants, its heating and cooling systems will change, it will become totally self sustainable, both now and in the future. Public transportation will cease using fossil fuels to run, instead they will use electric motors because electrical power will be more economic and readily available.

My theory is a revolution that will change almost everything thermodynamics, global warming, pollution, power production, heating, cooling, water production, agriculture and public transportation, the list is almost endless. This system is not consigned to the future, with a little funding and development, it is available now. I am dedicating my life to this theory.



Introduction
Green, free and renewable energy is a dream, and this dream is now closer to reality than ever. My theory will explain how that can be achieved. It is based on the refrigeration cycle which in my opinion should be more accurately called a heat pumping cycle.

The Theory
In a refrigeration cycle, the heat ejected to the environment is the sum of energy given to the refrigerant by the compressor plus the heat extracted in the evaporator. In lay mans terms, energy ejected into the environment will be at least 4 times more than the electrical energy which runs the compressor
Based on my theory, a system that will produce green free and renewable electrical power, cooling, heat and water at only maintenance and initial cost, is possible, hard to believe but if my theory hold out, possible.

Heat extraction -rejection cycle
1- Evaporator where the refrigerant will extract Heat =Qev
2- The compressor will compress the refrigerant to high pressure and high temperature this means it will give the refrigerant energy (heat) Qcom
3- The condenser will reject the heat to the environment Qc=heat rejected
4- Qc=Qev + Qcom
5- Qev= 3Qcom as per actual systems that exist in the market

The results of the system are
1. Free electrical power (7)
2. Free cooling (1)
3. Free heating power (5)
4. Free Condensate water (1)

 


P.S please don’t hesitate to contact my at any time for any clarification

 

Offline syhprum

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For a heat pump system to extract energy from the environment you need both a source of heat and a source of cold that is why power stations spend a lot of money building cooling towers. 
 

Offline McKay

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For a heat pump system to extract energy from the environment you need both a source of heat and a source of cold that is why power stations spend a lot of money building cooling towers. 

Did you mean that for thermoelectric effect (or steam engine or something the likes) to work you need a temperature difference? Sure, of course.

But a heat pump actually work the best when both source temp and target temp are the same (and it works to make one cooler and one hotter), doesnt it?

*Input = 1 unit
*Hot side = 3 units ->> generate anything >1 unit using thermoelectric/ piston/ whatever generator.
*Cold side = -2 units ->> is replenished to 0 from environment.

Sorry, I just cant let this thing go :D
 
 

Offline agyejy

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For a heat pump system to extract energy from the environment you need both a source of heat and a source of cold that is why power stations spend a lot of money building cooling towers. 

Did you mean that for thermoelectric effect (or steam engine or something the likes) to work you need a temperature difference? Sure, of course.

But a heat pump actually work the best when both source temp and target temp are the same (and it works to make one cooler and one hotter), doesnt it?

*Input = 1 unit
*Hot side = 3 units ->> generate anything >1 unit using thermoelectric/ piston/ whatever generator.
*Cold side = -2 units ->> is replenished to 0 from environment.

Sorry, I just cant let this thing go :D
 

Simply put what you are attempting to do violates the second law of thermodynamics. The validity of which is well established.

https://www.ohio.edu/mechanical/thermo/Intro/Chapt.1_6/Chapter5.html <- discusses the conected heat engine/pump secenario and why it violates the second law
 

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