[Gasification] "Absorption/Sorption" recovery of any waste heat to ice and hot water

[Kevin Chisholm]

Dear Peter

Thanks very much for your comprehensive review of absorption 
refrigeration systems!

Kevin

Peter Singfield wrote:
> Here is how to make some of that lost heat "productive"
> 
> The "physics" of this process:
> 
> http://www.limsi.fr/Individu/mpons/than.htm
> 
> Using ammonia as the working fluid -- you will get very low temperatures --
> but need "hot" waste heat.
> 
> Using Alcohol as working fluid -- you do not get such low temps -- but you
> can use lower temperature waste heats -- 
> 
> Here is an example -- but they want $25 for the "paper" - -so only the
> abstract.
> 
> If you wish to understand the terms involved -- read the Url at top first.
> 
> http://apps.isiknowledge.com/CEL/CIW.cgi?&CustomersID=AIP&Func=Links&ImgLogo
> =http%3A%2F%2Fimages.isiknowledge.com%2FImages%2FLinks%2FWOK3%2Ftbretpub.gif
> &PointOfEntry=FullRecord&PublisherID=AIP&ReturnLink=http%3A%2F%2Flink.aip.or
> g%2Flink%2F%3FSLE%2F124%2F70%2F1&ServiceName=TransferToWos&ServiceUser=Links
> &UT=000175330200012&e=bB6I681Llp9_hQKIcUHrk.J6UUCI76oSH5qJzxNCwY5gs7pkB0XBBo
> YqOrtkqtgB
> 
> Title: A combined cycle of heating and adsorption refrigeration: Theory and
> experiment 
> Author(s): Wang RZ, Li M, Xu YX, Wu JY, Shou HB 
> Source: JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME 124
> (1): 70-76 FEB 2002 
> Document Type: Article 
> Language: English 
> Cited References: 11      Times Cited: 0
> Abstract: A combined cycle capable of heating and adsorption-refrigeration
> is proposed, and the experimental prototype has been installed. The system
> consists of a heater, a water bath, an activated carbon-methanol adsorption
> bed and an ice box. This system has been tested with electric heating, and
> has been found that with 61 MJ heating, the 120 kg water in the bath can be
> heated from 22degreesC to 92degreesC, of while 9 kg ice at -1.5degreesC is
> made. The calculated COPsystem is 0.0591 and COPcycle is 0.41. After
> reconstruction to a real hybrid household water heater-refrigerator, when
> 55 MJ heating is added to 120 kg of 21degreesC water and the condensing
> temperature is controlled at about 30degreesC. The result is the 4 kg water
> contained inside the methanol refrigerant evaporator was iced to
> -2degreesC. The cooling capacity of the ice and the refrigerant in the
> evaporator will maintain the 100 liter cold box for about three days below
> 5degreesC. The experiments show the potential of the application of the
> solar powered hybrid water heater and refrigerator theoretical simulation
> has been done, which is in good agreement with experimental results. This
> research shows that the hybrid solar water heating and ice-making is
> reasonable, and the combined cycle of heating and cooling is meaningful for
> real applications of adsorption systems. 
> Addresses: 
> Wang RZ (reprint author), Shanghai Jiao Tong Univ, Inst Refrigerat &
> Cryogenics, Shanghai 200030, Peoples R China
> 
> Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogenics, Shanghai 200030,
> Peoples R China
> 
> Publisher: ASME-AMER SOC MECHANICAL ENG, THREE PARK AVE, NEW YORK, NY
> 10016-5990 USA 
> Subject Category: Energy & Fuels; Engineering, Mechanical 
> IDS Number: 547JX 
> 
> ISSN: 0199-6231 
> 
> ********************next********************
> 
> If you just want to do a small refrigeration -- using present state of the
> art Absorption refrigeration -- based on Ammonia -- check out this Url:
> 
> http://www.lpappliances.com/G-Absorp.html
> 
> The first thought that went through my mind after looking that site over was:
> 
> Find a Chinese supplier for the complete system!!
> 
> China is really into developing absorption systems of all kinds these days.
> 
> If you wish to know more about where the big units are going -- such a
> building air conditioning using solar absorption system -- check out this url:
> 
> http://www.solarserver.de/solarmagazin/artikeljuni2002-e.html
> 
> Sorption-assisted air conditioning
> 
> Read all about it -- in Germany.
> 
> France is big on this technology -- and I even found the abstracts from
> 1981 -- which must be when I first heard about this in Canada.
> 
> This site is in France:
> 
> http://www.limsi.fr/Individu/mpons/indexENG.html
> 
> And Pons is the "man" that has dedicated his life to it. Lot's of links --
> lot's of info -- and at no costs.
> 
> Basically -- waste heat (or solar) can be converted into hot water and ice.
> 
> So -- you can use waste heat from a gasifier to cool the product gas flow
> -- then heat it back up again. 
> 
> All with no moving parts!!
> 
> So that makes this posting On-Topic.
> 
> The: "International Adsorption Society" based in Belgium has an interesting
> site:
> 
> http://ias.vub.ac.be/
> 
> But i have yet to get around to "mining" it.
> 
> 
> 
> Peter/Belize
> 
> 
> 
> 
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