空调冷凝器系统设计(完全表格)

432s5015.压缩机指示效率为0.75ηi=0.75项目信息型号Delta9COP3.05状态点参数单位R134aP0KPa636t0oC7.8h0kJ/kg408.1v0m3/kg0.03712P1KPa636t1oC16v1m3/kg0.03883h1kJ/kg414.4冷凝器计算01t2soC80p2KPa2077h2skJ/kg445P2KPa20772t2oC86v2m3/kg0.01362h2kJ/kg455.2t3oC53p3KPa2077h3kJ/kg267.24h4kJ/kg251.62p4KPa2077t4oC41.5v4m3/kg0.0009349v5m3/kg0.0111115h5KJ/kg251.62性能指标项目计算公式单位R134a制冷量Q0W3570单位质量制冷量qKJ/kg162.78冷凝器计算设计条件冷凝温度tkoC532s3流量Gkg/s0.0219制冷量Q0W3570换热量QkW4465换热量/制冷量W/W1.25确认换热量QkfW4900.00进风状态t1oC35ts1oC24ρ1kg/m31.13冷风比(m3/h)/W0.42风量Vfm3/h1875m3/s0.521进出风温差dt=Qkf/V/p/cpoC8.2出风状态t2=t1+dtoC43.2冷凝器结构参数铜管规格Dmm9.53δmm0.35纵向间距s1mm25.4横向间距s2mm19.05翅片间距Sfmm1.4翅片厚度δfmm0.15翅片面积/mAfm2/m0.57388基管面积Apm2/m0.02868单位管长面积A=Af+Apm2/m0.60256取经验换热系数KW/m2.oC30对数平均温差DTmoC13.46所需换热面积F=Qk/K/DTmm212.13所需铜管总长Ls=F/Am20.14冷凝器结构确定根据外形确定的长度Wmm800m0.8铜管总根数Ns=Ls/W25.2冷凝器排数Np1每排根数Ng25.2Ng(取整）22实际铜管总根数Ns=Ng*Np22冷凝器高度H=s1*Ngmm558.8m0.559迎风面积Fy=W*Hm20.447迎面风速Vy=Vf/Fym/s1.17回路设计冷凝器出口体积流量Veo=G*v4m3/s0.00002050冷凝器出口液体流速ucom/s0.25铜管通流面积f=PI*(D-2δ)2/4mm261.237单管体积流量Vepm3/s0.0000153回路数Nc=Veo/Vep1.3回路数取整Nc2每路铜管数11实际铜管分布n1/n2/n3…10/12每路铜管数Npc=Ns/Nc11每个流程长度Sc=Npc*Wm8.8分液毛细管确定换热管内径Din=D-2δmm8.83单个流程长度Lcm8.8局部阻力修正系数k0.5修正长度Lccm13.2分液毛细管压降/冷凝器压降1分液毛细管内径dinmm3分液毛细管长度Lcapmm79(需查找一般取值范围）KVy=2.5~3.535m=0.546vy=K=1.523.97207715(取0.2~0.5m/s)51012211123451010101010121212121210/1267891010101010101212121212111213141510101010101212121212161718192010101010101212121212212223242510101010101212121212262728293010101010101212121212313233343510101010101212121212363738394010101010101212121212414243444510101010101212121212464748495010101010101212121212