Re: Hard drives breaking (heat?)

Article View: uk.comp.os.linux

Article #263

#263

From: Tony Houghton
Date: Fri, 24 Nov 2000 17:12

19 lines
2195 bytes

In <hE59sFALclH6Ew9L@upthorpe.demon.co.uk>,
Oz <Oz@upthorpe.demon.co.uk> wrote:

> Note: For air fans (and to a lesser degree centrifugal liquid pumps) the
> motor is in fact under the most stress when it's pumping with the least
> pressure difference and the maximum flowrate. The high pitch you hear
> when vacuum cleaners are dead-ended is not because the motor is under
> stress but because it's under no stress and is thus rotating at maximum
> speed. The reduction in pitch when sucking without restriction is in
> fact due to the motor slowing down because it is under load. It is
> possible to burn out the motors of fans when blowing or sucking if (for
> example) inlet and outlet pipes are removed which is the reverse of what
> most people think.

I think some vacuum cleaners use the airflow to cool the motors, so
blocking them could cause damage too.

-- 
TH * http://www.realh.co.uk

Technical Details

Message-ID: <slrn91t8ca.1kl.tony@realh.co.uk>

Path:

arc1-ca.pugleaf.net!supernews.google.com!sn-xit-02!supernews.com!isdnet!grolier!btnet-peer0!btnet!news5-gui.server.ntli.net!ntli.net!news6-win.server.ntlworld.com.POSTED!realh.co.uk!tony

References:

<3A089A3B.1D8C7CB4@blueyonder.co.uk> <88u6SAARA9G6Ew1t@upthorpe.demon.co.uk> <20001122.1750.16262snz@michaels.demon.co.uk> <KzMHxQAeyCH6EwK8@upthorpe.demon.co.uk> <8vhddm$gcu$1@polo.demon.co.uk> <3A1CDCA6.87296A69@sweeney.demon.co.uk> <ikgs1t8rj60kprq3qsn62g00709lcbkoho@4ax.com> <hE59sFALclH6Ew9L@upthorpe.demon.co.uk>

Show Full Headers

Complete Article Headers

X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 1036bc,d0abdc02d44bde7a
X-Google-Attributes: gid1036bc,public
X-Google-Thread: 10d8ad,d0abdc02d44bde7a
X-Google-Attributes: gid10d8ad,public
X-Google-ArrivalTime: 2000-11-24 12:04:36 PST
Path: arc1-ca.pugleaf.net!supernews.google.com!sn-xit-02!supernews.com!isdnet!grolier!btnet-peer0!btnet!news5-gui.server.ntli.net!ntli.net!news6-win.server.ntlworld.com.POSTED!realh.co.uk!tony
From: {tony}@realh.co.uk (Tony Houghton)
Newsgroups: uk.comp.os.linux,demon.tech.pc
Subject: Re: Hard drives breaking (heat?)
Organization: None
Lines: 19
Message-ID: <slrn91t8ca.1kl.tony@realh.co.uk>
References: <3A089A3B.1D8C7CB4@blueyonder.co.uk> <88u6SAARA9G6Ew1t@upthorpe.demon.co.uk> <20001122.1750.16262snz@michaels.demon.co.uk> <KzMHxQAeyCH6EwK8@upthorpe.demon.co.uk> <8vhddm$gcu$1@polo.demon.co.uk> <3A1CDCA6.87296A69@sweeney.demon.co.uk> <ikgs1t8rj60kprq3qsn62g00709lcbkoho@4ax.com> <hE59sFALclH6Ew9L@upthorpe.demon.co.uk>
Reply-To: tony@realh.co.uk
User-Agent: slrn/0.9.6.2 (Linux)
Date: 24 Nov 2000 17:12:42 GMT
NNTP-Posting-Host: 62.252.177.224
X-Complaints-To: abuse@ntlworld.com
X-Trace: news6-win.server.ntlworld.com 975096264 62.252.177.224 (Fri, 24 Nov 2000 20:04:24 GMT)
NNTP-Posting-Date: Fri, 24 Nov 2000 20:04:24 GMT

Reply to Parent Message