制冷原理与技术

ADSORPTIONREFRIGERATIONWANG

RuzhuSJTU-IRC制

冷

原

理

与

技

术1.Solidsorption

conceptse-Adsorptionadsorbent-adsorbatePhysical

adsorptionzeolite-water,silicagel-water,activatedcarbon-methanol/ammoniaChemical

adsorptionCaCl2-ammonia,Metalhydridhydrogen制

冷

原

理

与

技

术Structureof

adsorbent-zeolite制

冷

原

理

与

技

术2、Adsorption

isobars,isotherms

andisotersisx

f

p

,T

Adsorption

systemTx

f

p

px

f

T

xp

f

T

IsothermsIsobarsIsotersis020 40 60 80 100 120 14010001001010.050.10.60 20

406080100 12014010001001010.260.02(a)Activatedcarbon

fibre-methanolFig.2-135p-T-x

diagram(b)Activated

carbon-methanolFig.2-151p-T-xdiagramofLiBr-waterSingleeffectPcx PexconcxdilTa Tg T,

oCFig.2-137:AdsorptionIsobarsAdsorption：Ta、Pe;Desorption:Tg、Pc制

冷

原

理

与

技

术3、Adsorption

Refrigeration

Cycle1、Adsorption

refrigeration

workingpairPhysical

adsorptionzeolite-water,silicagel-water,activatedcarbon-methanol/ammoniaChemical

adsorptionCaCl2-ammonia,Metal

hydride-hydrogen3、Adsorption

Refrigeration

Cycle（1）Basic

CycleFig.2-154Solaricemakerbasedonbasic

cyclelnPPcPeQcondQevaQadQhQc56142Qg

3Te

TgTaTc

Ta

Tg2-1/T(1/K)饱和制冷剂XconcXdilFig.2-155 P-T-xdiagramofadsorptionrefrigeration

cycleLnP

ABP

cbQ

gcbQ

gcQ

regQ

hQ

cQ

cQ

hQ

regPe

adadQ

ad

Q

ad

T

a2 T

g1T

a1 T

g2T

a2 T

g1T

a1 T

g2-1

/TFig.2-155Twobedsheatrecovery

cycle（2）HeatRecoveryAdsorptionRefrigeration

Cycle4.ApplicationsofAdsorption

RefrigerationFig.2-157Adsorptionchilledwatersystem

drivenbyhotwater(JapanTokyoGasCo.

Ltd)Silica

gel-waterQf=70-352kWHotwaterdriven

:75-70℃Coolingwater:29-33℃Chilled

water:14-9℃COP：0.630

oC热源温差驱动;

60

oC COP-0.3;85oC

COP-0.4干盘管工况

COP-0.5制

冷

原

理

与

技

术regeneratorchimneycondensercheckvalve

Aadsorberexhaustgas

inletvaccum

valvenoser

inletlocomotive

roofexhaustgas

outletcheckvalve

Bcheckvalve

C

noser

inletpumpdrivercabinfan

coilevaporator

gas/air

outletadsorbercondensercondensercoolingair

inletcoolingair

inletchimney内燃机车余热驱动吸附式空调器上海交大,2001制

冷

原

理

与

技

术•Zeolite-water•4-6kWAC

cooling•Temp.differencebetweencabinandoutside

8oC•Onesingleadsorbersystem+watercold

storage冷媒水泵储液器恒温水箱燃烧器引风机蒸发/蓄冷器吸附床蓄冷水泵鼓风机冷却水

冷凝器Fig.2-159Laboratorytest

unitAdsorberEvap/Receiver/Cold

storage制

冷

原

理

与

技

术Solarcoldboxforvaccine

preservation(英国

Universityof

Warwick)

国际卫生组织向发展中国家推荐的用于疫苗冷藏的太阳能吸附制冷机制

冷

原

理

与

技

术SolarIce

maker（CNRS、French

Company

BLM)Solarcollector：1

m2adsorptionpair：activatedcarbon-methanol制

冷

原

理

与

技

术（5）AdsorptionColdStorage0.150.10.0500.250.20.3050100150200250T

(℃)x

(kg/kg)Ts=12.5℃Ts=34℃Ts=45℃dxqstorx1)h

fg

(x0制

冷

原

理

与

技

术qc

(x2x0

x1x1)h

fgx1

x2maqaddx

ma

(c

pa

xcpr)dT

mbcpb

dTdx/dt

k1

exp(

k2 /

T

)

(xeq

x0

)制

冷

原

理

与

技

术-1/TABCDFT0TPcondx3Ln(p)PevJ HKIGExfxhx1

xj00.20.40.60.8

30507013