Convert low temperature waste heat into power
Convert low temperature waste heat into power
(OP)
During compression, lots of heat is generated. With oil injected screw technology, this heat is approx. 60..80° above ambient. With oil free techonology, this can go up to 180°..200° above ambient.
This is quite some waste heat (80% of shaft input).
Is it feasible to convert part of this heat again into power, e.g. using stirling technology or ORC technology?
Or other kinds of technology?
This is quite some waste heat (80% of shaft input).
Is it feasible to convert part of this heat again into power, e.g. using stirling technology or ORC technology?
Or other kinds of technology?





RE: Convert low temperature waste heat into power
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http://www.mne.psu.edu/me415/fall04/Kellogg3/
Or any of the several hundered other hits on the subject from Google?
RE: Convert low temperature waste heat into power
you also have other option where you can use the waste heat for heating purpose directly. The more the conversion process you will add to any system the more complicated it will become and the less efficient at the same time.
RE: Convert low temperature waste heat into power
RE: Convert low temperature waste heat into power
RE: Convert low temperature waste heat into power
RE: Convert low temperature waste heat into power
80F above ambient will definitely heat domestic water or feedwater with low capital costs and short payback.
80F will also offset heating loads in outside air units with low capital cost and short payback.
Payback is also defined by cost of fuel which has spiked significantly lately and will make heat recovery much more attractive.
RE: Convert low temperature waste heat into power
http://www.croll.com/_website/pr/vrefsys.asp
http://www.processrecovery.com/heat.htm
RE: Convert low temperature waste heat into power
RE: Convert low temperature waste heat into power
For absorption air conditioning use of the heat, see the Yazaki literature (Li-Br). For power generation, see the Kalina literature ( NH3-H2O), as used in geothermal well applications.