大温差小流量系统 特灵空调

1、EarthwiseTM System大温差小流量- 高效.节能.环保Series Arrangement 串联(chunlin)布置1共三十一页The Titanic Story泰坦尼克First Cost (1 year)Maintenance CostsEnergy CostsCO2 Taxes ? (19 years)2共三十一页冷冻机chiller冷却塔cooling tower水泵(shubng)pump冷冻(lngdng)水系统能耗Energy Consumption1970s2000s73%9%18%58%26%16%3共三十一页1999年1月HPAC杂志(zzh) David

2、W. Kelly4共三十一页简单的物理(wl)公式Physical formulaQ = m cp DT水泵(shubng)主机冷量不变5共三十一页Cooling Coil PerformanceA C Tan 传统(chuntng)温差 大温差 TMBH (KW) 476.5 (139) 475.6 (139) EWT (Supply temp) 44 F (6.6oC) 41 F (5oC) WTR (temp dif)10 F (5.5oC) 15.1 (8.4oC) GPM (flow) 95.3 (6 L/s) 63.0 (4 L/s) Typical Example扰流盘管(pn

3、un) 6共三十一页盘管(pn un)扰流 : Stainless Steel SS304Copper TubeTurbulatorTurbulator7共三十一页传统温差 大温差流量 2400 gpm (151 L/s)1600 gpm (101 L/s) 扬程 110 feet (33.5 M) 49/110 feet (14.5/33.5 M) 泵效率 80 % 80 % 马达(md)效率 95 %95 %泵功率 65 kW19/42 kw冷冻(lngdng)水泵Typical Example (1000 ton)8共三十一页大温差(wnch)2000 gpm (126 L/s)32/6

4、0 feet (9.7/18.2 M)80 %95 %16/28 kW传统温差流量(liling) 3000 gpm (189 L/s)扬程60 feet (18.2 M)泵效率 80 %马达效率 95 %泵功率 45 kW冷却水泵Typical Example (1000 ton)9共三十一页传统温差冷冻(lngdng)水供 44oF (6.6oC)主机能耗 580 kW大温差(wnch) 41oF (5oC) 613 kW主机Typical Example (1000 ton)10共三十一页传统(chuntng)温差 95/85/78(35/29.4/25.5)3000 gpm (189

5、L/s)10o F (5.6 C) range7o F (3.9 C) approach60 hp48 kW冷却塔Typical Example (1000 ton)大温差(wnch)100/85/78(37.7/29.4/25.5)2000 gpm (120 L/s)15o F (8.3 C) range7o F (3.9 C) approach40 hp32 kW11共三十一页主机(zhj) 580 冷冻水泵 65 冷却水泵 45 冷却塔 48 共计 738 传统(chuntng)温差 613 19/42 16/28 32 680/715 大温差+33 kW- 46/- 23 kW- 29

6、/- 17 kW-16- 58/- 23 kW( - 8 %/- 3% )节能水侧能耗 ChW & CWTypical Example (1000 ton)12共三十一页主机 +10k 冷冻水泵 -6k 冷却(lngqu)水泵 -6k冷却塔 -10k管路，阀门及安装 -20k共计 -32k USD 投资(tu z)比较 ChW & CWTypical Example (1000 ton)，传统温差投资USD:640k。改设计为大温差后：初投资降低：5%13共三十一页ductwork$piping, pumps$初投资(tu z)chillers+$+$controls?$air handler

7、s-$初投资(tu z)运行费用大温差可应用在水侧，空气侧小流量大温差高效Enhanced comfort 提高舒适度Enhanced acoustics 降低噪音Environmentally Friendly 环保Space reduced 减少空间14共三十一页Low Flow/Temp. System 水侧比较(bjio)Water side BYPASS VALVE15共三十一页Low Flow/Temp. System 水侧比较(bjio)Water sideBYPASS VALVE16共三十一页Case: CICB中保(zhngbo)大厦17共三十一页Low Flow/Temp.

8、 System Case: CICB中保(zhngbo)大厦18共三十一页Low Flow/Temp. System Case: CICB中保(zhngbo)大厦19共三十一页每生产(shngchn) 1 kWh 电相当于向大气释放 : Generating 1 kWh of Electricity is equivalent to releasing in the atmosphere: 680克,1.5 磅 Lb. of CO2 4.5 克 Grams of SO2 2.5 克 Grams of NOxCase: CICB中保(zhngbo)大厦20共三十一页选用(xunyng)大温差所降

9、低的能耗相当于= 多种200,000棵树 Planting 200,000 Trees减少(jinsho)900辆汽车 Removing 900 carsCase: CICB中保大厦By Investing in an more efficient EWS system21共三十一页Sydney Super Dome悉尼(x n)2000年奥运会主馆Earthwise Case Study22共三十一页EarthwiseTM System大温差小流量(liling)- 高效.节能.环保Series Arrangement 串联布置23共三十一页5.5oC38 oC32 oC12 oC下游(xi

10、yu)机1850ton vs 0.598 kw/ton上游(shngyu)机2150ton vs 0.608 kw/ton34.8 oC8.51 oC0.603375 kw/ton上游机下游机24共三十一页Boston Convention & Exhibition Center波士顿会展中心September 30, 2004共三十一页BCEC Cooling Plant六台电制冷 56O F- 40O F(13.3-4.4 O C)(2) 3000 Ton Series Counterflow Modules(2) 400 Ton Double Bundle Chillers二次泵系统(x

11、tng)机房能耗 kw/TR0.78 kw/TR Design0.59 kw/TR IPLV17万平方米空调面积(min j)6800冷吨冷冻26共三十一页Series Counterflow Chillers3000 TR Module ChillerTower Fans & Pumps CHW PumpsTotal主机冷却塔与冷却水泵冷冻(lngdng)水泵总计Series Counterflow0.633 kw/TR Design0.056 kw/TR0.075 kw/TR0.76 kw/TR90o - 110oF (32.2-43.3oC)0.484 kw/TR NPLV0.056 k

12、w/TR0.075 kw/TR0.615 kw/TRParallel0.769 kw/TR Design0.056 kw/TR0.075 kw/TR0.90 kw/TR90o - 110oF (32.2-43.3oC) 0.608 kw/TR NPLV0.056 kw/TR0.075 kw/TR0.740 kw/TRConventional85o -95o F (29.4-35oC) 0.579 kw/TR Design 0.12 kw/TR 0.075 kw/TR0.77 kw/TRParallel0.485 kw/TR NPLV0.12 kw/TR0.075 kw/TR0.68 kw/TR

13、27共三十一页波士顿会展中心Methods to Reduce Tower Size减小冷却塔Reduce flow Rate - Increase Range增加冷却塔的温差(wnch)-6,800 TR 10O F (5.6oC) Range 85O-95O 19,000 GPM 30” Pipe775 HP-6,800 TR 15O F (11.1oC) Range 85O-100O 12,750 GPM 24” Pipe530 HP -6,800 TR 20O F (11.1oC) Range 85O-105O 9,600 GPM 20” Pipe400 HPPump Power re

14、ductionsFan Power ReductionsLine Size ReductionsIncrease Tower Approach增加冷却塔的逼近度，供水温度与湿球温度差-78O F (25.6oC) Wb85O-100O (29.4-37.8oC) 2500 Sq. Ft. 225 HP 85O-78O = 7O F (3.8oC) Approach -78O F (25.6oC) Wb90O-110O (32.2-43.3oC) 1800 Sq. Ft. 150 HP 90O-78O = 12O F (6.6oC) Approach28共三十一页ConclusionSeries counterflow chillers low flow high approach tower advantageous顺流逆流串联配置主机，大温差(wnch)冷却塔Low first cost low energy减低机房投资与运行费Every application is different每一单都不同Dont be a “Victim of Inertia”不做习惯的牺牲品初投资(tu z)运行费用29共三十一页谢谢(xi xie)大家 Thank you 30共三十一页内容摘要Ea