请数模高手们帮忙解答一下，感激不尽

kingdong

<p class="MsoNormal" style="MARGIN: 7.5pt 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; mso-pagination: widow-orphan;"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US" style="FONT-SIZE: 16pt; LINE-HEIGHT: 150%; FONT-FAMILY: 黑体;">A</span></b><b style="mso-bidi-font-weight: normal;"><span style="FONT-SIZE: 16pt; LINE-HEIGHT: 150%; FONT-FAMILY: 黑体;">题<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span></span></span></b><b><span style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">火力发电问题</span></b><b><span lang="EN-US" style="FONT-SIZE: 14pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 12.0pt;"><p></p></span></b></p><p class="MsoNormal" align="left" style="MARGIN: 7.5pt 0cm 0pt; TEXT-INDENT: 18pt; TEXT-ALIGN: left; mso-pagination: widow-orphan;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">火力发电机组由锅炉、汽轮机、发电机以及各种辅机设备组成，这些设备作为一个整体运转产生电能。锅炉加热产生水蒸气，推动汽轮机，由汽轮机带动发电机转子旋转切割磁力线产生电能。在发电过程中，由于各种设备都会产生能量损耗，导致发电的成本相应的提高。为了更好的调整机组运行状态，降低机组的能损，从而降低发电成本，我们希望能够比较清晰的掌握影响发电机组的发电效率的因素及其相互关系，从而能够指导生产。</span><font face="Times New Roman">
                        <span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: &quot;Arial Unicode MS&quot;; mso-fareast-font-family: &quot;Arial Unicode MS&quot;; mso-font-kerning: 0pt; mso-bidi-font-family: &quot;Arial Unicode MS&quot;;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">火力发电机组的发电效率与机组的发电负荷率与有直接的关系，一般说来，负荷率越高，机组的发电效率也就越高。而机组的带负荷能力是由机组运行的各项指标决定，通过调整机组运行的各项指标可使其到达一定的负荷状态。</span><font face="Times New Roman">
                        <span lang="EN-US" style="FONT-SIZE: 12pt;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">影响机组运行的主要指标如下表：</span><font face="Times New Roman">
                        <span lang="EN-US" style="FONT-SIZE: 12pt;"><p></p></span></font></p><p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt;"><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><font size="3">&nbsp;</font></span></p><table class="MsoNormalTable" cellspacing="0" cellpadding="0" border="1" style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt;"><tbody><tr style="HEIGHT: 15.2pt; mso-yfti-lastrow: yes;"><td valign="top" width="70" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 52.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; HEIGHT: 15.2pt; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt;"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">主汽压力</span><font face="Times New Roman"><span style="FONT-SIZE: 9pt;">
                                                        </span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: &quot;Arial Unicode MS&quot;; mso-fareast-font-family: &quot;Arial Unicode MS&quot;; mso-bidi-font-family: &quot;Arial Unicode MS&quot;;"><p></p></span></font></p></td><td valign="top" width="70" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 52.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; HEIGHT: 15.2pt; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt;"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">主汽温度</span><font face="Times New Roman"><span style="FONT-SIZE: 9pt;">
                                                        </span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: &quot;Arial Unicode MS&quot;; mso-fareast-font-family: &quot;Arial Unicode MS&quot;; mso-bidi-font-family: &quot;Arial Unicode MS&quot;;"><p></p></span></font></p></td><td valign="top" width="70" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 52.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; HEIGHT: 15.2pt; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt;"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">再热汽压</span><font face="Times New Roman"><span style="FONT-SIZE: 9pt;">
                                                        </span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: &quot;Arial Unicode MS&quot;; mso-fareast-font-family: &quot;Arial Unicode MS&quot;; mso-bidi-font-family: &quot;Arial Unicode MS&quot;;"><p></p></span></font></p></td><td valign="top" width="80" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 60.35pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; HEIGHT: 15.2pt; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt;"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">再热汽温度</span><font face="Times New Roman"><span style="FONT-SIZE: 9pt;">
                                                        </span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: &quot;Arial Unicode MS&quot;; mso-fareast-font-family: &quot;Arial Unicode MS&quot;; mso-bidi-font-family: &quot;Arial Unicode MS&quot;;"><p></p></span></font></p></td><td valign="top" width="59" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 44.15pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; HEIGHT: 15.2pt; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt;"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">真空度</span><font face="Times New Roman"><span style="FONT-SIZE: 9pt;">
                                                        </span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: &quot;Arial Unicode MS&quot;; mso-fareast-font-family: &quot;Arial Unicode MS&quot;; mso-bidi-font-family: &quot;Arial Unicode MS&quot;;"><p></p></span></font></p></td><td valign="top" width="70" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 52.25pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; HEIGHT: 15.2pt; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt;"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">给水温度</span><font face="Times New Roman"><span style="FONT-SIZE: 9pt;">
                                                        </span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: &quot;Arial Unicode MS&quot;; mso-fareast-font-family: &quot;Arial Unicode MS&quot;; mso-bidi-font-family: &quot;Arial Unicode MS&quot;;"><p></p></span></font></p></td><td valign="top" width="62" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 46.8pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; HEIGHT: 15.2pt; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt;"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">含氧量</span><font face="Times New Roman"><span style="FONT-SIZE: 9pt;">
                                                        </span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: &quot;Arial Unicode MS&quot;; mso-fareast-font-family: &quot;Arial Unicode MS&quot;; mso-bidi-font-family: &quot;Arial Unicode MS&quot;;"><p></p></span></font></p></td><td valign="top" width="74" style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #ece9d8; WIDTH: 55.8pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; HEIGHT: 15.2pt; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt;"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">进风温度</span><font face="Times New Roman"><span style="FONT-SIZE: 9pt;">
                                                        </span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: &quot;Arial Unicode MS&quot;; mso-fareast-font-family: &quot;Arial Unicode MS&quot;; mso-bidi-font-family: &quot;Arial Unicode MS&quot;;"><p></p></span></font></p></td></tr></tbody></table><p style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt;"><span lang="EN-US" style="FONT-FAMILY: &quot;Times New Roman&quot;;"><font size="3">&nbsp;</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">主汽压力和主汽温度是指推动汽轮机的主蒸汽的压力和温度，主蒸汽在推动汽轮机做功后形成再热汽，重新回到锅炉进行加热加压。再热汽重新加热之前的温度和汽压也是影响机组运行的重要因素。</span><font face="Times New Roman">
                        <span lang="EN-US" style="FONT-SIZE: 12pt;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">当然，由于影响机组带负荷能力的各项指标之间存在着一定的影响关系，调整其中某一个指标会导致其他指标的变化，因此调整机组运行状态就变成了在各项运行指标之间寻求一种平衡。因此，如果能够找到各项运行指标之间的关系，并给出机组的发电成本与各项运行指标之间的关系，将会提高机组运行效率，降低发电成本。</span><font face="Times New Roman">
                        <span lang="EN-US" style="FONT-SIZE: 12pt;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt;"><b><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">问题：</span><font face="Times New Roman">
                        </font></b><b><span lang="EN-US" style="FONT-SIZE: 12pt;"><p></p></span></b></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; tab-stops: list 18.0pt;"><span lang="EN-US" style="mso-fareast-font-family: &quot;Times New Roman&quot;;"><font face="Times New Roman">1）</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">影响机组运行效率的指标由大到小依次是什么？影响发电成本的指标由大到小依次是什么？</span><font face="Times New Roman">
                        <span lang="EN-US" style="FONT-SIZE: 12pt;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; tab-stops: list 18.0pt;"><span lang="EN-US" style="mso-fareast-font-family: &quot;Times New Roman&quot;;"><font face="Times New Roman">2）</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">各指标之间的内在关系如何？</span><font face="Times New Roman">
                        <span lang="EN-US" style="FONT-SIZE: 12pt;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; tab-stops: list 18.0pt;"><span lang="EN-US" style="mso-fareast-font-family: &quot;Times New Roman&quot;;"><font face="Times New Roman">3）</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">要想尽可能的取得高效率、低成本，如何调控这些指标？给出定量关系。</span><font face="Times New Roman">
                </font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 18pt; TEXT-INDENT: -18pt; tab-stops: list 18.0pt;"><span lang="EN-US" style="FONT-SIZE: 12pt;"><p><font face="Times New Roman"></font></p></span></p>