【正文】 2。 由于地區(qū)差異較大，上述指標(biāo)以北京地區(qū)為準(zhǔn)。表 民用建筑主要房間人員所需的最小新風(fēng)量參考值〔m 3/（h C溫度 。 C溫度 ?？照{(diào)冷負(fù)荷法估算冷指標(biāo)（W/M 2 空調(diào)面積）見下表 .........16四、按建筑面積冷指標(biāo)進(jìn)行估算 建筑面積冷指標(biāo) ............................................................17五、建筑物冷負(fù)荷概算指標(biāo)香港 ...................................................................................................18六、各類建筑物鍋爐負(fù)荷估算 W/M3℃ .........................................................................................19七、熱損失概算 W/M3℃ .................................................................................................................19八、冷庫冷負(fù)荷概算指標(biāo) ...............................................................................................................20第四章 風(fēng)管系統(tǒng)設(shè)計(jì) .........................................................................................................................21一、通風(fēng)管道流量阻力表 ...............................................................................................................21縮伸軟管摩擦阻力表 ..............................................................................................................21鍍鋅板風(fēng)管摩擦阻力表 ..........................................................................................................21二、室內(nèi)送回風(fēng)口尺寸表 ...............................................................................................................24風(fēng)口風(fēng)量冷量對應(yīng)表 ..............................................................................................................24不同送風(fēng)方式的風(fēng)量指標(biāo)和室內(nèi)平均流速 ASHRAE.........................................................24三、室內(nèi)風(fēng)管風(fēng)速選擇表 ...............................................................................................................25低速風(fēng)管系統(tǒng)的推薦和最大流速 m/s...................................................................................25低速風(fēng)管系統(tǒng)的最大允許速 m/s...........................................................................................25通風(fēng)系統(tǒng)之流速 m/s...............................................................................................................25四、室內(nèi)風(fēng)口風(fēng)速選擇表 ...............................................................................................................26送風(fēng)口風(fēng)速 ..............................................................................................................................26以噪音標(biāo)準(zhǔn)控制的允許送風(fēng)流速 m/s...................................................................................26推薦的送風(fēng)口流速 m/s...........................................................................................................27送風(fēng)口之最大允許流速 m/s...................................................................................................27回風(fēng)口風(fēng)速 ..............................................................................................................................27回風(fēng)格柵的推薦流速 m/s.......................................................................................................27百葉窗的推薦流速 m/s...........................................................................................................28逗留區(qū)流速與人體感覺的關(guān)系 ..............................................................................................28頂棚散流器送風(fēng)量 ..................................................................................................................28側(cè)送風(fēng)口送風(fēng)量 ....................................................................................................................28五、通風(fēng)系統(tǒng)設(shè)計(jì) ...........................................................................................................................30送風(fēng)口布置間距 ......................................................................................................................30標(biāo)準(zhǔn)型號風(fēng)盤所接散流器的尺寸表辦公室 ........................................................................30散流器布置 ..............................................................................................................................31空調(diào)房間允許最大送風(fēng)溫差℃ ..............................................................................................31工藝性空氣調(diào)節(jié)空調(diào)房間允許最大送風(fēng)溫差. .....................................................................32廚房通風(fēng)問題 ..........................................................................................................................32消聲器、靜壓箱總結(jié) ..............................................................................................................36（日本） .................................................................................37（只有直風(fēng)道 dB/m，其它都是 dB） .....................................................38六、防排煙設(shè)計(jì) ...............................................................................................................................38第五章 管道系統(tǒng)設(shè)計(jì) .........................................................................................................................42一、空調(diào)管路系統(tǒng)的設(shè)計(jì)原則 .......................................................................................................42二、管路系統(tǒng)的管材 .......................................................................................................................43三、供回水總管上的旁通閥與壓差旁通閥的選擇 .......................................................................43四、空調(diào)水系統(tǒng)管徑的確定 ...........................................................................................................45五、冷凍水泵揚(yáng)程估算方法 ...........................................................................................................47水泵揚(yáng)程簡易估算法 ..............................................................................................................47冷凍水泵揚(yáng)程實(shí)用估算方法 ..................................................................................................47水泵揚(yáng)程設(shè)計(jì) ..........................................................................................................................49六、冷卻水系統(tǒng)的設(shè)計(jì) ...................................................................................................................49冷卻水系統(tǒng)的補(bǔ)水量 .................................................................................