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- Newsgroups: sci.energy
- Path: sparky!uunet!stanford.edu!leland.Stanford.EDU!leland.Stanford.EDU!ledwards
- From: ledwards@leland.Stanford.EDU (Laurence James Edwards)
- Subject: Re: External-Combustion Cars -- Possible?
- Message-ID: <1992Nov17.230415.27809@leland.Stanford.EDU>
- Sender: news@leland.Stanford.EDU (Mr News)
- Organization: DSG, Stanford University, CA 94305, USA
- References: <1992Nov12.111359.11804@bsu-ucs> <1992Nov13.191148.12117@ke4zv.uucp> <1992Nov17.211607.6700@leland.Stanford.EDU>
- Date: Tue, 17 Nov 92 23:04:15 GMT
- Lines: 33
-
- In article <1992Nov17.211607.6700@leland.Stanford.EDU>, ledwards@leland.Stanford.EDU (Laurence James Edwards) writes:
- |> In article <1992Nov13.191148.12117@ke4zv.uucp>, gary@ke4zv.uucp (Gary Coffman) writes:
- |> |> [...]
- |> |> Go to the library and look up "Stanley Steamer." These vehicles used
- |> |> a flash boiler and could start up from cold in under 1 minute. They
- |> |> could out accelerate any gasoline engined vehicle of their day, and
- |> |> had a top speed over 120 MPH. They were produced around the turn of
- |> |> the century. A recent emissions test on one of these antiques showed
- |> |> it to handily meet current California emissions standards. But it's
- |> |> fuel economy is horrid. Steam engines are fun, but the reason they
- |> |> have been replaced in railroading and in automotive usage is that
- |> |> their Carnot efficiency is poor. That means they burn a lot of fuel
- |> |> and generate a lot of CO2.
- |>
- |> Interesting, what kind of mpg (assuming they used gas) did stanley steamers
- |> get?
-
- Well since I was near the library I decided to stop in and answer my own
- question.
-
- Turns out that one model of Stanley Steamer (from the '20s I believe) got about
- 13-15mpg of kerosene. In comparison a typical IC auto from the time (I forget
- which make) got around 18mpg of gasoline. Because of the price difference
- between gasoline and kerosine, steamers were actually cheaper (in terms of fuel)
- to operate. Steamers were more complicated to operate and people feared boiler
- explosions and fires, which probably had more to do with there demise at the
- time.
-
- The above condensed info is from "The car solution: the steam engine comes of
- age" by Gary Levine.
-
-
- Larry Edwards
-