以空氣為例，溫度200℃，壓力0.02Mpa，管徑400mm.運(yùn)行時(shí)間按360*24計(jì)算，電費(fèi)按每千瓦時(shí)0.5元計(jì)算。其中*壓力損失為不同管徑、不同壓力條件下國(guó)家規(guī)定的允許數(shù)值，而實(shí)際運(yùn)行中的壓力損失值遠(yuǎn)遠(yuǎn)大于這一數(shù)值。

孔板壓力損失（KPa）   體積流量（m3/h）    能耗（KW）  年運(yùn)行費(fèi)用（萬(wàn)元）

                           10                        4000           13.8        6

                                                    5000           17.4        7.5

                                                     6000           20.8        9

                           20                        4000           27.6       12

                                                    5000           34.8       15

                                                    6000           41.6       18                          

                           30                        4000           41.4       18

                                                    5000           52.2       22.5

                                                     6000           62.4       27                          

                           40                        4000           55.2       24

                                                    5000           69.6       30

                                                    6000           83.2       36

以下為用到的公式：

孔板的壓損公式：Δω=（1-β1.9）ΔP

W=(Δω·Qkph)/（3.6ηρf1）

年耗能費(fèi)（RMB/年）=（W/1000）×（運(yùn)行時(shí)數(shù)/年）×（？元/千瓦小時(shí)）