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American steam locomotive efficiency- the effect of blastpipe size and superheat levels.
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<p>[quote user="Juniatha"]</p> <p class="MsoNormal" style="line-height:14pt;margin:6pt 0cm 0pt;mso-line-height-rule:exactly;"><span style="color:#003300;font-size:11pt;mso-ansi-language:EN-GB;" lang="EN-GB"><span style="font-family:Times New Roman;"><img src="/TRCCS/emoticons/emotion-13.gif" alt="Angel" /> </span></span></p> <p class="MsoNormal" style="line-height:14pt;margin:6pt 0cm 0pt;mso-line-height-rule:exactly;"><span style="color:#003300;font-size:11pt;mso-ansi-language:EN-GB;" lang="EN-GB"><span style="font-family:Times New Roman;">Er-hm .. if you may pardon my joining your discussion, may I just add a few words?</span></span></p> <p class="MsoNormal" style="line-height:14pt;margin:6pt 0cm 0pt;mso-line-height-rule:exactly;"><span style="font-size:11pt;mso-ansi-language:EN-GB;" lang="EN-GB"><span style="font-family:Times New Roman;"> </span></span></p> <p class="MsoNormal" style="line-height:14pt;text-indent:35.4pt;margin:6pt 0cm 0pt;mso-line-height-rule:exactly;"><span style="font-family:Times New Roman;"><b style="mso-bidi-font-weight:normal;"><span style="color:#4b00c8;font-size:18pt;mso-ansi-language:EN-GB;" lang="EN-GB">T</span></b><span style="color:#420050;font-size:11pt;mso-ansi-language:EN-GB;" lang="EN-GB">he UP Jabelmann double chimney arrangement included quadruple blast nozzles each. With that draughting both Challenger and FEF-II could and likely did exceed 100,000 lbs/h steaming rates. <br /></span></span></p> <p> </p> <p class="MsoNormal" style="line-height:14pt;text-indent:35.4pt;margin:6pt 0cm 0pt;mso-line-height-rule:exactly;"><span style="font-family:Times New Roman;"><span style="color:#420050;font-size:11pt;mso-ansi-language:EN-GB;" lang="EN-GB"><img src="/TRCCS/emoticons/emotion-1.gif" alt="Smile" /></span></span></p> <p class="MsoNormal" style="line-height:14pt;text-indent:35.4pt;margin:6pt 0cm 0pt;mso-line-height-rule:exactly;"><span style="font-family:Times New Roman;"><span style="color:#420050;font-size:11pt;mso-ansi-language:EN-GB;" lang="EN-GB">Regards</span><span style="color:#420050;font-size:10pt;mso-ansi-language:EN-GB;" lang="EN-GB"></span></span></p> <p class="MsoNormal" style="line-height:14pt;text-indent:35.4pt;margin:6pt 0cm 0pt 35.4pt;mso-line-height-rule:exactly;"><span style="font-family:Times New Roman;"><b style="mso-bidi-font-weight:normal;"><i style="mso-bidi-font-style:normal;"><span style="position: relative; color: #3200c8; font-size: 22pt; top: 3pt;" lang="EN-US">J</span></i></b><i style="mso-bidi-font-style:normal;"><span style="font-size:small;"><span style="color:#b4003c;mso-font-width:120%;" lang="EN-US">un</span><span style="color:#a00050;mso-font-width:120%;" lang="EN-US">ia</span><span style="color:#a0008c;mso-font-width:120%;" lang="EN-US">tha</span></span></i></span><span style="font-size:10pt;mso-ansi-language:EN-GB;" lang="EN-GB"></span></p> <p> </p> <div style="clear:both;"></div> <p>[/quote]</p> <p><span style="font-family: Times New Roman;"><span style="color: #420050; font-size: 11pt;" lang="EN-GB"></span></span>Do you have the source of "<span style="font-family: Times New Roman;"><span style="color: #420050; font-size: 11pt;" lang="EN-GB">100,000 lbs/" ? Sometimes, I have those "weirdo" thinking, that UP-Engines were pretty underestimated, concerning that...<br /></span></span></p> <p><span style="font-family: Times New Roman;"><span style="color: #420050; font-size: 11pt;" lang="EN-GB">Looking at the BB-tests in 1943, the engines produced all less than that rate (but have a bigger boiler than a Chally or Northern). All evap.-rates were beyond 100.000 lbs/h. Though, they were not running fast, what is is the missing link here? </span></span></p> <p><span style="font-family: Times New Roman;"><span style="color: #420050; font-size: 11pt;" lang="EN-GB">Cheers,</span></span></p> <p><span style="font-family: Times New Roman;"><span style="color: #420050; font-size: 11pt;" lang="EN-GB">-lars<br /></span></span></p> <p> </p> <p> </p>
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