on 3/10/04 6:52 PM, [EMAIL PROTECTED] at [EMAIL PROTECTED] wrote: > Call it biofuel, energy storage, say from burning wvo. On what basis then > could you discount the alternative of hot water storage in large, insulated > tanks if the energy is to be spent in an hydronic system for a combination of > space heating, swimming pool heating, and heating the driveway for snow and > ice removal?
Amory Lovins has a lot to say about all this -- let me try to paraphrase (IIRC) without doing him insult. There's low quality and hi quality energy. I think it's related to the delta-T: difference between source temp. and intended use temp. The best solution is always to use a source temp. just enough higher than the sink temp. to provide the proper SPEED of energy transfer. If hot rocks will cook yer soup in an acceptable time, concentrated solar at 2000 deg. is stupid. OTOH, if yer trying to melt zirconium, even the best geothermal might not be sufficient...... -K Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://infoarchive.net/sgroup/biofuel/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/biofuel/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
