home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.physics.fusion
- Path: sparky!uunet!elroy.jpl.nasa.gov!ames!pacbell.com!tandem!zorch!fusion
- From: Chuck Harrison <73770.1337@compuserve.com>
- Subject: Ni - H2O electrolysis
- Message-ID: <921122025453_73770.1337_EHA72-1@CompuServe.COM>
- Sender: scott@zorch.SF-Bay.ORG (Scott Hazen Mueller)
- Reply-To: Chuck Harrison <73770.1337@compuserve.com>
- Organization: Sci.physics.fusion/Mail Gateway
- Date: Sun, 22 Nov 1992 04:13:16 GMT
- Lines: 60
-
- Here's the current plan for Mills/Notoya replication:
- 3 cells, A & B under electrolysis, C thermal only. Constant current.
-
- [ EXCESS GAS COLLECTION ]
- [ 2 CONTAINERS ]
-
- ^ ^ Key: OOOOOO = gas tubing
- O O ...... = wiring
- O O
- D1 [ Dessi ] [ Dessi ] D2
- [ cant ] [ cant ]
- O O
- [ Pt ] [ Pt ] ...( R )......( R )..............
- O O : : :
- [ Dessi ] [ Dessi ] : :..----\ :
- [ cant ] [ cant ] : ...servo>.. :
- O O : : ----/ : :
- O OOOOOOOO: : : :
- ........ O ...........: O .....:...... : ........:
- : : O : : O : : : : :
- : : O : : O : : : : :
- : --:---O---:-- --:---O---:-- --:---:---:-- :
- : [ : : ] [ : : ] [ : : : ] :
- : [ : : ] [ : : ] [ : : : ] :
- : [ Pt Pt ] [ Pt Ni ] [ :.D G S.: ] :
- : [ ] [ ] [ ] :
- : [ K2CO3 ] [ K2CO3 ] [ H2O ] :
- : ------------- ------------- ------------- :
- : CELL A CELL B CELL C :
- : ( Control ) ( Experiment ) ( Control ) :
- : :
- : ------------------------ :
- :.............( + CURRENT SOURCE - ).....................:
- ------------------------
-
- Features:
- Series configuration guarantees equal current in all cells.
- Cell C ("resistance" control) is actually a power transistor servo'd
- to force same voltage on cell C as cell B. This forces equal power
- into cells B & C.
- Cell A (control) simply electrolyzes water to H2 & O2. Evolved gas
- is dried, then recombined on Pt catalyst. Resulting water vapor is
- absorbed on dessicant D1.
- Cell B's evolved gas is treated the same and absorbed in dessicant D2.
-
- Weight gain of dessicant (from before/after weighings) indicates amount
- of H2 & O2 produced. Steady-state evolution of "excess gas" would
- indicate unanticipated gas chemistry.
-
- Simplified calorimetry (temperature rise of cell dewars) estimates heat
- generation <10%.
- Operating current approx 150 ma.
-
- Question:
- What is a reliable form of Pt catalyst (or Pd or other) to recombine
- 2 H2 + O2 -> 2 H2O at room temp, ambient pressure?
-
- -Chuck
-
-
-