John Pye wrote: > Hi all, > > I'm afraid I got ahead of myself a bit when I wrote the following :-( > >> ... the track-changes stage of my [...] on the whole works very nicely. >> > > An afternoon's worth of editing with track-changes turned on has > resulted in a compound document, one file per chapter, that will no > longer allow me generate a PDF file using pdflatex. A bit more hunting and I have narrowed down the problem to a single file. The attached diff file is a reverse patch that shows the problem (ie the '-' lines contain the problem). The LyX file in question was edited using LyX 1.5.3 on Fedora 7, with Change tracking turned on, and Show changes turned on when pdflatex was run on the master document.
Any thoughts? Cheers JP
Index: 03 - Cavity Modelling.lyx =================================================================== --- 03 - Cavity Modelling.lyx (revision 1617) +++ 03 - Cavity Modelling.lyx (working copy) @@ -1,4 +1,4 @@ -#LyX 1.5.3 created this file. For more info see http://www.lyx.org/ +#LyX 1.5.1 created this file. For more info see http://www.lyx.org/ \lyxformat 276 \begin_document \begin_header @@ -33,7 +33,6 @@ \paperpagestyle default \tracking_changes true \output_changes true -\author "John Pye" \author "John Pye,,," \end_header @@ -911,23 +910,23 @@ \begin_layout Standard This was assuming air in the cavity to be at -\change_inserted 1 1199603579 +\change_inserted 0 1199603579 \begin_inset Formula $200\:^{\circ}\mathrm{C}$ \end_inset -\change_deleted 1 1199603560 +\change_deleted 0 1199603560 200 deg C \change_unchanged , which is a conservative value once again, giving -\change_inserted 1 1199603689 +\change_inserted 0 1199603689 \begin_inset Formula $k$ \end_inset = 0.039 W/mK -\change_deleted 1 1199603370 +\change_deleted 0 1199603370 \begin_inset Formula $k=0.039\,\mathrm{W/m^{2}}$ \end_inset @@ -946,29 +945,8 @@ \end_inset . - So we can -\change_deleted 0 1200193539 -therefore -\change_unchanged - say that -\change_inserted 0 1200193549 -, -\change_unchanged - -\change_inserted 0 1200193548 -therefore, -\change_deleted 0 1200193568 -so long as -\change_inserted 0 1200193573 -provided that -\change_unchanged - there is a small (4 cm or greater) stratified layer in the cavity, the - convective and conductive losses should -\change_inserted 0 1200193586 - not -\change_deleted 0 1200193584 -n't -\change_unchanged + So we can therefore say that so long as there is a small (4 cm or greater) + stratified layer in the cavity, the convective and conductive losses shouldn't exceed about 10% of the total. \end_layout @@ -1033,7 +1011,7 @@ to obtain a more detailed simulation of the heat loss processes, allowing for this interaction. A more detailed model also permitted -\change_inserted 1 1199603997 +\change_inserted 0 1199603997 examination of \change_unchanged the degree of stratification that can be expected; this was not at all possible @@ -1306,7 +1284,7 @@ The inclination of the side-walls, at 30 deg rather than 60 deg, is different from that used in the Reynolds work. -\change_inserted 1 1199604452 +\change_inserted 0 1199604452 The shallower side-wall angle was chosen to allow a greater acceptance angle in response to changes in the layout of the mirror array. @@ -6006,7 +5984,7 @@ \begin_layout Standard \begin_inset Formula \begin{equation} -Q_{rad}/A=F_{rad}\sigma\epsilon_{\mathrm{absorber}}\left(T_{1}^{4}-T_{2}^{4}\right)\label{eq:cav-correl-greybody}\end{equation} +Q_{rad}/A=F_{rad}\sigma\epsilon_{absorber}\left(T_{1}^{4}-T_{2}^{4}\right)\label{eq:cav-correl-greybody}\end{equation} \end_inset @@ -6251,7 +6229,7 @@ This is likely to be problematic, since the presence of the stratification in the upper half of the cavity will mean that the temperature difference driving the convection is likely to be something other than -\begin_inset Formula $T_{\mathrm{absorber}}-T_{\mathrm{cover}}$ +\begin_inset Formula $T_{absorber}-T_{membrane}$ \end_inset . @@ -6282,7 +6260,7 @@ \begin_layout Standard \begin_inset Formula \begin{equation} -\mathrm{Gr}=\frac{g\cdot\beta_{c}\cdot\left(T_{\mathrm{absorber}}-T_{\mathrm{cover}}\right)\cdot D^{3}}{\nu_{c}^{2}}\label{eq:grashof-cavity}\end{equation} +\mathrm{Gr}=\frac{g\cdot\beta_{c}\cdot\left(T_{absorber}-T_{membrane}\right)\cdot D^{3}}{\nu_{c}^{2}}\label{eq:grashof-cavity}\end{equation} \end_inset @@ -6291,9 +6269,9 @@ \begin_layout Standard \begin_inset Formula \begin{eqnarray*} -\beta_{c} & = & \beta(\mathrm{water},T_{c},p_{atm})\\ -\nu_{c} & = & \nu(\mathrm{water},T_{c},p_{atm})\\ -T_{\mathrm{c}} & = & \frac{1}{2}\left(T_{\mathrm{absorber}}+T_{\mathrm{cover}}\right)\end{eqnarray*} +\beta_{c} & = & \beta(water,T_{c},p_{atm})\\ +\nu_{c} & = & \nu(water,T_{c},p_{atm})\\ +T_{c} & = & \frac{1}{2}\left(T_{absorber}+T_{membrane}\right)\end{eqnarray*} \end_inset @@ -6343,7 +6321,7 @@ \begin_layout Standard \begin_inset Formula \begin{equation} -\frac{Q_{cond}}{A}=\frac{k_{c}}{D}\left(T_{\mathrm{absorber}}-T_{\mathrm{cover}}\right)\label{eq:pure-conduction-cavity}\end{equation} +\frac{Q_{cond}}{A}=\frac{k_{c}}{D}\left(T_{absorber}-T_{membrane}\right)\label{eq:pure-conduction-cavity}\end{equation} \end_inset @@ -6370,7 +6348,7 @@ \begin_layout Standard \begin_inset Formula \begin{equation} -\mathrm{Nu}=\frac{Q_{conv}}{Q_{cond}}=\frac{Q_{conv}/A}{\frac{k_{c}}{D}\left(T_{\mathrm{absorber}}-T_{\mathrm{cover}}\right)}\label{eq:nusselt-cavity}\end{equation} +\mathrm{Nu}=\frac{Q_{conv}}{Q_{cond}}=\frac{Q_{conv}/A}{\frac{k_{c}}{D}\left(T_{absorber}-T_{membrane}\right)}\label{eq:nusselt-cavity}\end{equation} \end_inset @@ -6472,7 +6450,7 @@ \begin_inset Float figure wide false sideways false -status collapsed +status open \begin_layout Standard \align center @@ -6531,9 +6509,9 @@ \begin_layout Standard \begin_inset Formula \begin{eqnarray*} -Q_{\mathrm{sidewalls}} & = & N\, h_{\mathrm{sidewalls}}\left(T_{\mathrm{cavity}}-T_{\mathrm{ambient}}\right)\\ -Q_{\mathrm{cover},\mathrm{conv}} & = & B\, h_{\mathrm{cover}}\left(T_{\mathrm{cover}}-T_{\mathrm{ambient}}\right)\\ -Q_{\mathrm{cover},\mathrm{rad}} & = & B\,\epsilon_{\mathrm{cover}}\left(T_{\mathrm{cover}}^{4}-T_{\mathrm{ambient}}^{4}\right)\end{eqnarray*} +Q_{sidewalls} & = & Nh_{sidewalls}\left(T_{c}-T_{ambient}\right)\\ +Q_{membrane,conv} & = & Bh_{membrane}\left(T_{membrane}-T_{ambient}\right)\\ +Q_{membrane,rad} & = & B\epsilon_{membrane}\left(T_{membrane}^{4}-T_{ambient}^{4}\right)\end{eqnarray*} \end_inset @@ -6542,11 +6520,11 @@ \begin_layout Standard Note that in the above, -\begin_inset Formula $Q_{\mathrm{sidewalls}}$ +\begin_inset Formula $Q_{sidewalls}$ \end_inset is calculated relative to the cavity temperature, -\begin_inset Formula $T_{\mathrm{cavity}}$ +\begin_inset Formula $T_{c}$ \end_inset which is taken as the mean of the absorber and cover temperatures. @@ -6592,7 +6570,7 @@ Therefore a complete system model will require the iteration given in the above steps, plus additional higher-level iteration for the absorber surface temperature -\begin_inset Formula $T_{\mathrm{absorber}}$ +\begin_inset Formula $T_{absorber}$ \end_inset . @@ -6610,7 +6588,7 @@ \begin_inset Float algorithm wide false sideways false -status collapsed +status open \begin_layout Standard \begin_inset Caption @@ -6835,7 +6813,7 @@ \begin_inset Float table wide false sideways false -status collapsed +status open \begin_layout Standard \begin_inset Caption @@ -7016,7 +6994,7 @@ \begin_inset Float figure wide false sideways false -status collapsed +status open \begin_layout Standard \align center @@ -7078,16 +7056,9 @@ \end_inset -, a new cavity geometry was proposed which included a -\change_inserted 0 1200196096 -cover consisting of a -\change_unchanged -gently inflated plastic film membrane -\change_inserted 0 1200196102 -, -\change_unchanged - to prevent disturbance of the cavity stratification due to flapping of - the plastic film during windy conditions. +, a new cavity geometry was proposed which included a gently inflated plastic + film membrane to prevent disturbance of the cavity stratification due to + flapping of the plastic film during windy conditions. In this section some modelling results for this geometry are presented to confirm that the addition of a curved cover does not adversely affect heat loss compared with earlier modelling. @@ -7111,11 +7082,7 @@ \end_inset of the `lip' used to retain the plastic film; the second is depth of the - -\change_deleted 0 1200196120 -membrane -\change_unchanged -bubble + membrane bubble \begin_inset Formula $M$ \end_inset @@ -7126,7 +7093,7 @@ \begin_inset Float figure wide false sideways false -status collapsed +status open \begin_layout Standard \align center @@ -7287,13 +7254,7 @@ \end_inset - of 20, the -\change_deleted 0 1200196007 -membrane -\change_inserted 0 1200196008 -cover -\change_unchanged - will be absorbing about + of 20, the membrane will be absorbing about \begin_inset Formula $420\,\mathrm{W/m^{2}}$ \end_inset @@ -7304,7 +7265,7 @@ \begin_inset Float figure wide false sideways false -status collapsed +status open \begin_layout Standard \align center @@ -7670,7 +7631,7 @@ \begin_inset Float table wide false sideways false -status collapsed +status open \begin_layout Standard \begin_inset Caption @@ -8233,7 +8194,7 @@ \begin_inset Float figure wide false sideways false -status collapsed +status open \begin_layout Standard \begin_inset Graphics @@ -8318,7 +8279,7 @@ \begin_inset Float figure wide false sideways false -status collapsed +status open \begin_layout Standard \align center @@ -8402,7 +8363,7 @@ \begin_inset Float table wide false sideways false -status collapsed +status open \begin_layout Standard \begin_inset Caption @@ -10089,7 +10050,7 @@ \begin_inset Float table wide false sideways false -status collapsed +status open \begin_layout Standard \begin_inset Caption @@ -12157,38 +12118,14 @@ \end_layout \begin_layout Subsection - -\change_deleted 0 1200196029 -Membrane t -\change_inserted 0 1200196030 -T -\change_unchanged -emperature -\change_inserted 0 1200211797 - of cavity cover -\change_unchanged - +Membrane temperature \end_layout \begin_layout Standard There were concerns over the temperature that may be reached on the TEFZEL - plastic film -\change_inserted 0 1200196183 -of the -\change_deleted 0 1200196141 -membrane -\change_inserted 0 1200196178 -cavity cover -\change_unchanged -. - The -\change_deleted 0 1200196194 -membrane -\change_inserted 0 1200196198 -cavity cover -\change_unchanged - temperature profile for one of the simulation cases (Case #2590) is shown - in Figure + plastic film membrane. + The membrane temperature profile for one of the simulation cases (Case + #2590) is shown in Figure \begin_inset LatexCommand ref reference "fig:Cavity-membrane-temperature" @@ -12214,7 +12151,7 @@ \begin_inset Float figure wide false sideways false -status collapsed +status open \begin_layout Standard \align center
