S32205 Duplex 2205 igwe anaghị agba nchara kemịkalụ kemịkalụ mmetụta nke ogologo capillary na njirimara nke refrigerant na gburugburu ebe obibi R152a na friji ezinụlọ.

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Nkọwapụta - Duplex 2205

• ASTM: A790, A815, A182
• ASME: SA790, SA815, SA182

Ngwakọta kemịkalụ – Duplex 2205

Ngwa a na-ahụkarị - Duplex 2205

Ụfọdụ ngwa a na-ahụkarị nke ọkwa nchara duplex 2205 ka edepụtara n'okpuru:

• Ndị na-ekpo ọkụ ọkụ, tubes na ọkpọkọ maka mmepụta na njikwa gas na mmanụ
• Ndị na-ekpo ọkụ na ọkpọkọ na-ekpo ọkụ na-ekpo ọkụ
• Ụgbọ mmiri nrụgide, ọkpọkọ, tankị na ndị na-ekpo ọkụ ọkụ maka nhazi na ịkwaga kemịkalụ dị iche iche
• Ụgbọ mmiri nrụgide, tankị na ọkpọkọ na ụlọ ọrụ na-arụ ọrụ na-ejikwa chlorides
• Rotors, fan, okporo osisi na akwụkwọ mpịakọta ebe enwere ike iji ike ike ọgwụgwụ corrosion mee ihe
• Tankị ibu ibu, ọkpọkọ na ihe eji agbado ọkụ maka tankị kemịkalụ

Njirimara anụ ahụ

Njirimara anụ ahụ nke ọkwa 2205 igwe anaghị agba nchara ka edepụtara n'okpuru.

Sistemụ kpo oku na ụlọ jụrụ oyi na-ejikarị ngwaọrụ capillary eme ihe.Ojiji nke spiral capillaries na-ewepụ mkpa maka ngwa nju oyi dị fechaa na usoro.Nrụgide capillary na-adaberekarị na parampat nke geometry capillary, dị ka ogologo, nkezi dayameta na anya n'etiti ha.Edemede a na-elekwasị anya na mmetụta nke ogologo capillary na arụ ọrụ sistemu.A na-eji capillaries atọ nke ogologo dị iche iche mee ihe na nyocha.A na-enyocha data maka R152a n'okpuru ọnọdụ dị iche iche iji nyochaa mmetụta nke ogologo dị iche iche.A na-enweta arụmọrụ kachasị na okpomọkụ nke evaporator nke -12 ° C na ogologo capillary nke 3.65 m.Nsonaazụ na-egosi na arụmọrụ nke usoro na-abawanye na ogologo capillary na-abawanye ruo 3.65 m ma e jiri ya tụnyere 3.35 m na 3.96 m.Ya mere, mgbe ogologo nke capillary na-abawanye site na ego ụfọdụ, arụmọrụ nke usoro ahụ na-abawanye.Atụnyere nsonaazụ nnwale ahụ na nsonaazụ nke nyocha mgbakọ na mwepụ (CFD).
Igwe nju oyi bụ ngwa nju oyi na-agụnye ebe a na-ekpo ọkụ, na usoro refrigeration bụ usoro nke na-emepụta mmetụta dị jụụ n'ime ụlọ mkpuchi.A na-akọwa oyi dị ka usoro iwepụ okpomọkụ site na otu oghere ma ọ bụ ihe na-ebufe okpomọkụ ahụ na oghere ma ọ bụ ihe ọzọ.A na-eji ngwa nju oyi na-echekwa nri na-emebi n'oge okpomọkụ, mmebi nke nje bacteria na usoro ndị ọzọ na-eji nwayọọ nwayọọ na friji dị ala.Igwe nju oyi bụ mmiri mmiri na-arụ ọrụ dị ka ebe a na-ekpo ọkụ ma ọ bụ ihe nju oyi na usoro refrigeration.Igwe nju oyi na-anakọta okpomọkụ site na ịpụpụ na obere okpomọkụ na nrụgide wee gbasaa na okpomọkụ dị elu na nrụgide, na-ahapụ okpomọkụ.Ime ụlọ ahụ ọ na-adịwanye jụụ ka okpomọkụ na-agbapụ na friza.Usoro jụrụ oyi na-ewere ọnọdụ n'ime usoro nke nwere compressor, condenser, capillary tubes na evaporator.Igwe nju oyi bụ ngwa nju oyi ejiri mee ihe n'ọmụmụ ihe a.A na-eji friji eme ihe n'ụwa niile, ngwa a aghọwo ihe dị mkpa n'ụlọ.Igwe nju oyi nke oge a na-arụ ọrụ nke ọma, mana nyocha iji meziwanye usoro ahụ ka na-aga n'ihu.Isi mwepu nke R134a bụ na amabeghị na ọ na-egbu egbu mana ọ nwere nnukwu okpomoku zuru ụwa ọnụ (GWP).Agbanyela R134a maka friji ụlọ na Kyoto Protocol nke United Nations Framework Convention on Climate Change1,2.Agbanyeghị, yabụ, ojiji nke R134a kwesịrị ibelata nke ukwuu3.Site na gburugburu ebe obibi, ego na ahụike, ọ dị mkpa ịchọta ihe ọkụ ọkụ zuru ụwa ọnụ dị ala4.Ọtụtụ nnyocha egosila na R152a bụ friji na-emetụta gburugburu ebe obibi.Mohanraj et al.5 nyochara ohere nke usoro iwu iji R152a na refrigerant hydrocarbon na friji ụlọ.Achọpụtala hydrocarbons adịghị arụ ọrụ dị ka friji na-anọ naanị ya.R152a na-arụ ọrụ nke ọma na gburugburu ebe obibi karịa refrigerants na-apụ apụ.Bolaji na ndị ọzọ6.Atụnyere arụmọrụ nke igwe nju oyi HFC atọ na-emetụta gburugburu ebe obibi n'ime ngwa nju oyi.Ha kwubiri na enwere ike iji R152a na sistemu mkpakọ uzuoku ma nwee ike dochie R134a.R32 nwere adịghị ike dị ka elu voltaji na ala ọnụọgụ nke arụmọrụ (COP).Bolaji et al.7 nwalere R152a na R32 dị ka ihe nnọchi maka R134a na friji ezinụlọ.Dị ka ọmụmụ, nkezi arụmọrụ nke R152a bụ 4.7% elu karịa nke R134a.Cabelo et al.nwalere R152a na R134a na akụrụngwa refrigeration na hermetic compressors.8. Bolaji et al9 nwalere R152a refrigerant na usoro refrigeration.Ha kwubiri na R152a bụ ike kacha arụ ọrụ nke ọma, yana 10.6% obere ike jụrụ oyi kwa ton karịa R134a gara aga.R152a na-egosi elu volumetric ike jụrụ na arụmọrụ.Chavkhan et al.10 nyochara njirimara nke R134a na R152a.N'ime nyocha nke refrigerants abụọ, a chọpụtara na R152a bụ ike kachasị ike.R152a bụ 3.769% na-arụ ọrụ nke ọma karịa R134a ma enwere ike iji ya dị ka nnọchi ozugbo.Bolaji et al.11 enyochala ihe dị iche iche dị ala GWP refrigerants dị ka ndị na-anọchi R134a na refrigeration usoro n'ihi na ha ala okpomọkụ okpomọkụ ike zuru ụwa ọnụ.N'ime refrigerants enyochala, R152a nwere ọrụ ike kachasị elu, na-ebelata oriri ọkụ eletrik kwa ton nke refrigeration site na 30.5% ma e jiri ya tụnyere R134a.Dị ka ndị na-ede akwụkwọ si kwuo, R161 kwesịrị ka emezigharị ya kpamkpam tupu e nwee ike iji ya dị ka onye na-anọchi anya ya.A rụrụ ọrụ nnwale dị iche iche site n'aka ọtụtụ ndị na-eme nchọpụta refrigeration ụlọ iji meziwanye arụmọrụ nke sistemụ refrigerant dị ala-GWP na R134a dị ka nnọchi na-abịa n'ihu na sistemụ refrigeration12,13,14,15,16,17,18, 19,20, 21, 22, 23 Baskaran et al.24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 mụọ arụmọrụ nke ọtụtụ refrigerant na gburugburu ebe obibi enyi na enyi na nchikota ha na R134a dị ka ihe ọzọ maka. ule mkpakọ uzuoku dị iche iche.Sistemu.Tiwari et al.36 jiri nnwale na nyocha CFD tụnyere arụmọrụ nke tubes capillary na refrigerant dị iche iche na dayameta tube.Jiri ngwa ANSYS CFX maka nyocha.A na-atụ aro imepụta eriri igwe okirikiri kacha mma.Punia et al.16 nyochara mmetụta nke ogologo capillary, dayameta na dayameta eriri mmiri na oke mmiri nke LPG refrigerant site na eriri gburugburu.Dị ka nsonaazụ nke ọmụmụ ahụ si kwuo, imezi ogologo ogologo nke capillary na nso site na 4.5 ruo 2.5 m na-enye ohere ịbawanye ụba nke oke site na nkezi 25%.Söylemez et al.16 mere nyocha CFD nke ụlọ nju oyi nke ụlọ (DR) site na iji ụdị ọgba aghara atọ dị iche iche (viscous) iji nweta nghọta n'ime ngwa ngwa jụrụ oyi nke ụlọ ọhụrụ na nkesa okpomọkụ na ikuku na akụkụ n'oge nbudata.Amụma nke ụdị CFD emepụtara na-egosipụta n'ụzọ doro anya ikuku ikuku na mpaghara okpomọkụ dị n'ime FFC.
Edemede a na-atụle nsonaazụ nyocha nke onye na-anya ụgbọ elu iji chọpụta arụmọrụ nke friji ụlọ na-eji R152a refrigerant, nke dị mma gburugburu ebe obibi na enweghị ihe ize ndụ nke ike ọgwụgwụ ozone (ODP).
N'ime ọmụmụ ihe a, 3.35 m, 3.65 m na 3.96 m capillaries ahọpụtara dị ka saịtị ule.Emere nnwale ahụ site na iji friji R152a dị ala wee gbakọọ paramita ọrụ.A tụlekwara omume nke refrigerant na capillary site na iji ngwa CFD.Atụnyere nsonaazụ CFD na nsonaazụ nnwale.
Dịka e gosiri na eserese 1, ị nwere ike ịhụ foto nke friji ụlọ dị lita 185 ejiri mee ihe ọmụmụ.Ọ na-agụnye ihe na-ekupụ ọkụ, ihe na-emeghachi omume nke hermetic na condenser jụrụ oyi.A na-etinye ihe nrụnye nrụgide anọ n'ime ntinye nke compressor, ntinye condenser na oghere evaporator.Iji gbochie ịma jijiji n'oge ule, a na-etinye mita ndị a panel.Iji gụọ okpomọkụ thermocouple, wires thermocouple niile na-ejikọta na nyocha thermocouple.A na-etinye ngwaọrụ nha okpomọkụ iri n'ime ebe a na-ekpofu evaporator, mmiri mmiri compressor, mwepu compressor, akụkụ friji na ntinye, ntinye condenser, friza na oghere condenser.A na-akọkwa voltaji na oriri ugbu a.A na-edozi ihe na-agba ọsọ na-ejikọta na mpaghara ọkpọkọ na osisi osisi.A na-echekwa ndekọ ọ bụla sekọnd iri site na iji nkeji igwe mmadụ (HMI).A na-eji iko a na-ahụ anya na-enyocha ịdị n'otu nke condensate eruba.
A na-eji igwe elekere Selec MFM384 nwere voltaji ntinye nke 100–500 V iji wepụta ike na ike.A na-etinye ọdụ ụgbọ mmiri ọrụ sistemụ n'elu compressor maka ịchaji na ịchaji refrigerant.Nzọụkwụ mbụ bụ igbapu mmiri mmiri site na sistemụ site na ọdụ ụgbọ mmiri.Iji wepu mmetọ ọ bụla na sistemu ahụ, kpochaa ya na nitrogen.A na-ebufe usoro ahụ site na iji mgbapụta agụụ, nke na-ebupụ akụkụ ahụ na nrụgide nke -30 mmHg.Tebụl 1 depụtara njirimara nke igwe nyocha nke friji ụlọ, na Tebụl 2 depụtara ụkpụrụ a tụrụ atụ, yana oke na izi ezi ha.
E gosiputara njirimara nke refrigerants eji na friji na friza na tebụl 3.
Emere ule dịka ntụnye nke ASHRE Handbook 2010 siri dị n'okpuru ọnọdụ ndị a:
Na mgbakwunye, ọ bụrụ naanị na a na-eme nyocha iji hụ na mpụtaghachi nsonaazụ ya.Ọ bụrụhaala na ọnọdụ ọrụ ka kwụsiri ike, a na-edekọ okpomọkụ, nrụgide, ikuku refrigerant na oriri ume.A na-atụle okpomọkụ, nrụgide, ike, ike na eruba iji chọpụta arụmọrụ usoro.Chọta mmetụta jụrụ oyi na arụmọrụ maka oke oke na ike na okpomọkụ enyere.
N'iji CFD nyochaa usoro abụọ na-erugharị n'ime igwe ikuku friji ụlọ, enwere ike ịgbakọ mmetụta nke ogologo capillary n'ụzọ dị mfe.Nyocha CFD na-eme ka ọ dị mfe iji nyochaa mmegharị nke ụmụ irighiri mmiri.Ejiri mmemme CFD FLUENT nyochaa ihe refrigerant na-agafe n'ime ime nke eriri igwe.Tebụl 4 na-egosi akụkụ nke mkpuchi mkpuchi capillary.
FLUENT software mesh simulator ga-ewepụta ụdị nhazi na ntupu (Figure 2, 3 na 4 na-egosi ụdị ANSYS Fluent).A na-eji ụda mmiri nke ọkpọkọ mee ihe iji mepụta ntupu oke.Nke a bụ grid ejiri mee ihe ọmụmụ a.
Ejiri usoro ANSYS FLUENT mepụta ụdị CFD.Naanị eluigwe na ala mmiri na-akpụ akpụ ka a na-anọchi anya ya, ya mere, a na-eme ka mmiri nke serpentine nke ọ bụla na-eme ka ọ bụrụ nke na-eme ka ọ bụrụ dayameta nke capillary.
Ebubatara ụdị GEOMETRY n'ime mmemme ANSYS MESH.ANSYS na-ede koodu ebe ANSYS bụ ngwakọta nke ụdị yana ọnọdụ oke agbakwunyere.Na fig.4 na-egosi ụdị ọkpọkọ-3 (3962.4 mm) na ANSYS FLUENT.Ihe Tetrahedral na-enye otu nha dị elu, dị ka egosiri na foto 5. Mgbe ịmepụtara isi ntupu, a na-echekwa faịlụ ahụ dị ka ntupu.A na-akpọ akụkụ nke eriri igwe ntinye, ebe akụkụ nke ọzọ na-eche ihu mpụta.A na-echekwa ihu ndị a gburugburu dị ka mgbidi nke ọkpọkọ.A na-eji mgbasa ozi mmiri eme ihe iji wuo ụdị.
N'agbanyeghị mmetụta onye ọrụ na-enwe banyere nrụgide, a họọrọ ngwọta ahụ wee họrọ nhọrọ 3D.Emeela usoro nrụpụta ike.
Mgbe a na-ewere na eruba ahụ dị ka chaotic, ọ bụ nke ukwuu na-abụghị nke linear.Ya mere, a họọrọ eruba K-epsilon.
Ọ bụrụ na ahọpụtara usoro ọzọ akọwapụtara nke onye ọrụ, gburugburu ga-abụ: Kọwaa njirimara thermodynamic nke R152a refrigerant.A na-echekwa njirimara ụdị dị ka ihe nchekwa data.
Ọnọdụ ihu igwe anaghị agbanwe agbanwe.Achọpụtara ọsọ mbata, a kọwapụtara nrụgide nke 12.5 mmanya na okpomọkụ nke 45 Celsius.
N'ikpeazụ, na nkeji iri na ise, a na-anwale ihe ngwọta ma na-agbakọta na nkeji iri na ise, dị ka egosiri na foto 7.
Ọ bụ usoro nke eserese na nyocha nsonaazụ.Tụgharịa nrụgide na loops data okpomọkụ site na iji Monitor.Mgbe nke ahụ gasịrị, a na-ekpebi nrụgide zuru oke na okpomọkụ na ọnọdụ okpomọkụ n'ozuzu.Ihe data a na-egosi mbelata nrụgide n'ofe eriri igwe (1, 2 na 3) na ọnụ ọgụgụ 1 na 2. 7, 8 na 9 n'otu n'otu.Ewepụtara nsonaazụ ndị a site na mmemme ịgba ọsọ.
Na fig.10 na-egosi mgbanwe nke arụmọrụ maka ogologo oge dị iche iche nke evaporation na capillary.Dị ka a pụrụ ịhụ, arụmọrụ na-abawanye na okpomọkụ evaporation na-abawanye.Enwetara arụmọrụ kachasị elu na nke kachasị dị ala mgbe ọ na-eru ogologo ogologo nke 3.65 m na 3.96 m.Ọ bụrụ na ogologo nke capillary na-abawanye site na ụfọdụ ego, arụmọrụ ga-ebelata.
Mgbanwe nke ike jụrụ oyi n'ihi ọkwa dị iche iche nke okpomọkụ evaporation na ogologo capillary na-egosi na fig.11. Mmetụta nke capillary na-eduga na mbelata nke ike jụrụ oyi.A na-enweta ike dị jụụ kacha nta na ebe esi mmiri -16 Celsius.A na-ahụ ike kachasị dị jụụ na capillaries nwere ogologo ihe dịka 3.65 m na okpomọkụ nke -12 ° C.
Na fig.12 na-egosi ndabere nke ike compressor na ogologo capillary na okpomọkụ evaporation.Na mgbakwunye, eserese ahụ na-egosi na ike na-ebelata site n'ịdị elu capillary ogologo yana ibelata okpomọkụ evaporation.N'ebe okpomọkụ na-ekpochapụ -16 Celsius C, a na-enweta ike compressor dị ala na ogologo capillary nke 3.96 m.
Ejiri data nnwale dị adị iji nyochaa nsonaazụ CFD.N'ime ule a, a na-etinye paramita ntinye aka maka ịme anwansị nnwale na simulation CFD.A na-atụnyere nsonaazụ enwetara na uru nke nrụgide static.Nsonaazụ enwetara na-egosi na nrụgide static dị na ọpụpụ si na capillary dị obere karịa n'ọnụ ụzọ nke tube.Nsonaazụ ule na-egosi na ịba ụba ogologo nke capillary na njedebe ụfọdụ na-ebelata nrụgide nrụgide.Na mgbakwunye, mbelata nrụgide static n'etiti mbata na mpụta nke capillary na-abawanye arụmọrụ nke sistemu refrigeration.Nsonaazụ CFD enwetara bụ nkwekọrịta dị mma na nsonaazụ nnwale dị adị.E gosipụtara nsonaazụ ule na Figure 1 na 2. 13, 14, 15 na 16. A na-eji capillaries atọ nke ogologo dị iche iche mee ihe n'ọmụmụ ihe a.Ogologo tube ahụ bụ 3.35m, 3.65m na 3.96m.Achọpụtara na mbelata nrụgide static dị n'etiti ntinye capillary na mpụta na-abawanye mgbe ogologo tube gbanwere ruo 3.35m.Rịba ama na nrụgide mpụta na capillary na-abawanye site na nha ọkpọkọ nke 3.35 m.
Tụkwasị na nke ahụ, nrụgide nrụgide n'etiti ntinye na ntinye nke capillary na-ebelata ka pipụ na-abawanye site na 3.35 ruo 3.65 m.Achọpụtara na nrụgide dị na nkwụsị nke capillary dara nke ọma na nkwụsị.N'ihi nke a, arụmọrụ na-abawanye na ogologo capillary a.Na mgbakwunye, ịbawanye ogologo ọkpọkọ site na 3.65 ruo 3.96 m ọzọ na-ebelata nrụgide nrụgide.Achọpụtala na n'ime ogologo a, nrụgide nrụgide na-agbada n'okpuru ọkwa kachasị mma.Nke a na-ebelata COP nke friji.Ya mere, loops nrụgide static na-egosi na capillary 3.65 m na-enye ọrụ kachasị mma na refrjiraeto.Na mgbakwunye, mmụba nke nrụgide nrụgide na-abawanye oriri ike.
Site na nsonaazụ nnwale ahụ, enwere ike ịhụ na ike jụrụ oyi nke R152a refrigerant na-ebelata na ogologo ọkpọkọ na-abawanye.Igwe mmiri nke mbụ nwere ikike nju oyi kacha elu (-12°C) na eriri igwe nke atọ nwere ike jụrụ oyi kacha ala (-16°C).A na-enweta arụmọrụ kachasị na okpomọkụ nke evaporator nke -12 Celsius C na ogologo capillary nke 3.65 m.Ike compressor na-ebelata site n'ịdị elu capillary ogologo.Ntinye ike compressor kacha na okpomọkụ nke evaporator nke -12 Celsius C yana opekempe na -16 Celsius.Tulee CFD na agụm mgbali ala maka ogologo capillary.Enwere ike ịhụ na ọnọdụ ahụ bụ otu ihe n'okwu abụọ ahụ.Nsonaazụ na-egosi na arụmọrụ nke usoro ahụ na-abawanye ka ogologo nke capillary na-abawanye na 3.65 m ma e jiri ya tụnyere 3.35 m na 3.96 m.Ya mere, mgbe ogologo nke capillary na-abawanye site na ego ụfọdụ, arụmọrụ nke usoro ahụ na-abawanye.
Ọ bụ ezie na ntinye nke CFD na ụlọ ọrụ ọkụ na ụlọ ọrụ ọkụ ga-eme ka nghọta anyị dịkwuo mma banyere mgbanwe na physics nke arụmọrụ nyocha okpomọkụ, njedebe chọrọ mmepe nke usoro CFD ngwa ngwa, dị mfe na nke dị ọnụ ala.Nke a ga-enyere anyị aka ibuli na chepụta akụrụngwa dị ugbu a.Ọganihu na ngwanrọ CFD ga-enye ohere maka imepụta na njikarịcha ya, na imepụta CFD n'elu ịntanetị ga-abawanye nnweta teknụzụ.Ọganihu ndị a niile ga-enyere CFD aka ịghọ ubi tozuru okè na ngwa ọrụ injinia dị ike.Ya mere, ngwa nke CFD na injinia okpomọkụ ga-adị obosara na ngwa ngwa n'ọdịnihu.
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