空调水系统管径的确定
水管管径d由下式确定：d4mw314v
式中mw水流量msv水流速ms我们建议，水系统中管内水流速按表一中的推荐值选用，经试算来确定其管径，或按表二根据流量确定管径。表一、管内水流速推荐值（ms）管径闭式系统开式系统管径闭式系统开式系统150405030410013181216200506040512515201418250607050615016221520320709060820018251623400810070925018261724500912081030019291724651114091235016251621801216111440018261823
表二、水系统的管径和单位长度阻力损失钢管管径1520253240506580100125150200250300350400450500闭式水系统流量mh00505101224466111118183232656511511518518538038056056082082095095012501250159015902000kPa100m060106010601060106010601060106010601060104710379268238188178158130131320244881414222245458282130130200200340340470470610610750750100010001230开式水系统流量mhkPa100m043114010401040104310241018815813712712711
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