Cosa ne pensate del thread seguente, è possibile concepire una sorta di cogenerazione/teleriscaldamento da reattori ad alta temperatura HTGR ?
I LWR sono probabilmente troppo grandi nelle taglie e troppo centralizzati, oltre ad avere proprietà termodinamiche molto povere per essere in tal modo sfruttati, per quanto in Svizzera esista già un sistema del genere
http://www.wscsd.org/ejournal/article.ph...rticle=208
Incollo di seguito la domanda in inglese
http://groups.google.com/group/alt.energ...506ab7a01a


More precisely, given the conclusions of the paper " The pebble bed
modular reactor,
desalination challenges and options "

http://www.inderscience.com/search/index.php?
action=record&rec_id=7011&prevQuery=&ps=10&m=or

I'm just curious, the PBMR core
heats up helium from 500 to 900 °C,after that is discharged at 140-160
°C. Could it be possible to heat up water
at temperatures high enough for district heating (or district cooling in the
hot months),of course with negligible or no looses at all in
electricity efficiency production?Have you got any estimate about max
water temperature achievable with helium at 140-160 °C?
What's exactly the max "net" thermal power producible for a PBMR
module? Could it be correct a value of 220 MW thermal per reactor (in
your paper,you claim with no more details " the rejection of
waste heat (about 200 MW) at temperatures of up to 120°C to cooling
water circuits " )

I believe the question is very interesting and useful because, besides
desalination purposes, for example a four module 400 MW_th plants
could produce together 5/5,5 billions of kWh/year and in the cold
months something like about 300 thousands of cubic meters of natural gas
equivalent for heating and hot water (in Italy the need of ng in the
civil sector is 30 Gm^3/year); moreover,in the hot months (and
particurally in the hot climates,like Italy or SA ) they could
chill with hot water-fuelled absorption/adsorption chillers the equivalent of
about 50 thousands of houses.
(I assumed a need of 1 kW " chill " (about 3400 Btu/hour)  per every
30 m^3 of dwellings,3000 hours of operation per year and a Cop of 0,6
for the absorption/adsorption chiller)
Saluti