Kunjani Okunikezela Ukukhokhwa Kwamandla Ngokuphatha Amavuku?

Indima YeSitsalano Se-Omoya KuHlanjelo Kwezimali Ze-HVAC

Ukuthi Kanjani Izitsalano Ze-Omoya Zifakela Phakathi Kuhlanjelo Kwezimali

Izinqamleli zokulahleka kwe-ahus zakhishisa kakhulu ukuchitha kwemithuthi yohamba lwesimilo uma kufakelwa imithUTHi yokusetshenziswa kwezimali. Zisebenza ngokulungisa umsindo wokulahleka futhi zafaka teknoloji ethile ebalulekile manje. Ngokomzekelo, izinhlelo ezintsha ze-vav ziyalungisa umsindo wokulahleka ngokulinganisa nokuthi kudingeka nini na. Abasebenzi basebhizinisi bavakashela ukuthi kususelwe imali ngemali engu-30% kuphela kunazo ezintandathu ezigcweleyo. Kanti kunezinto ezibalulwe njenge-ervs ezithola umthwalo futhi uthinta amandla okulahleka kumoya ophumayo uze wazidelela kumoya omusha ofika. Lokhu kususa kakhulu kubadinga bekuqina nekuhlisa. Ngemesi emnandi, iz-ervs zithola kabili kuya kuine yesibindi semithwalo ethintekayo, lokhu kusho ukuthi amabhoyela ayidingi ukusebenza kangakanani futhi kususwa imali yezimali.

Imip advantage ye-Energy Efficiency yezenzo ezintsha zezinqamleli zokulahleka

I-AHUs ezintsha zihlelwe ukuze iziqhumanise iziqhudu:

• Izivuno zokuhamba (VSDs) qinisekisa ukuthi izivuno nezinpuni ziquke ngokulinganayo kwiindlela ezifunekayo zeengxenye, zilungiselela ukungahlelekile kwezivuno eziphinde ziqhubeka ngokupheleleyo.
• Izihlwayelo esiphazanyayo MERV 13+ emncanelela ukukhulula kwesilulu nge-15–20% kuningi emva kwezintandabuzo ezindala, ekhusaseza izidingo zesivuno sesilulu.
• I-Motors eECM zeyini ngenjalo ama-30% angaphansi kwezinhlelo ezibalweni ngokusebenza kweAC, njengoko kubhalwe kumlando wendlela yase-HVAC.

Ngokwesibonelo, le miqondo ingayikeza ukusetshenziswa kwezimali ezi-HVAC nge-25–40% emakhaya amakhasi.

Kunjani Ukubalwa Kwe-AHU?

Xa kubhekwa ukuthi i-Air Handling Unit (AHU) iphelela kangakanani, abasebenzi bayohlola izikhala ezimbili eziphambili: i-Sensible Heat Ratio (SHR) kanye ne-Coefficient of Performance (COP). I-SHR ibonakala ikusho ukuthi ubungakanani bekuphelile kwekholinga kususelwa ekunqamuleni kakhulu okwenzeka ngokuhlukana kwesithunzi kunoma ukususa umlilo. Amathuba anjalo ayasebenza kahle kangaka uma i-SHR yazo isuke phakathi kuka-0.6 kuze kube ngu-0.8, lokhu kusho ukuthi asebenzela kahle kakhulu ngokulawula umlilo. Ngokomlando, le nombolo ibonisa singaphawula kangakanani esifuna futhi kuyikilowethi etholakele. Amathuba akamuva aya kufinyelela amashili e-COP phakathi kuka-4 kuze kube ngu-5, ngakho ke ngalokilowethi elitholakele, lawa mathuba angayikelela ngaphezu kwalokho okwenzelwe ngokusebenzisa amakhilowethi angama-4. Amathuba afakwa ngelabela ye-Energy Star futhi ayasebenza kahle kakhulu, ahlukanisa iziphumo ezingu-10% kuze kube ngu-15% ziyinkimbinkimbi kakhulu kunazo ezijwayelekile njengoba kuchazwe ngemithwisto egcwele emvelaphi.

Ukusoboza kwe-COP Yomthwebhu Ngokusebenzisa Amathuba Asebenza Ngomoya

Ukuma i-AHUs zihlukaniswe ngezinhlelo zokuthola futhi umthwalo, ubungako bendawo yezinhlelo ze-HVAC kahle kuphela kakhulu kusuka ku-20% usuku 30%. Ngokomzekelo, uma umuntu wahlanya i-gas fired heat pump noma kube yini leyo ebizwa ngiyo ngokuthi rotary heat exchanger. Kuyaphuma? Ezindaweni eziphathelene nokunyuka kwamandla, igama elinikezela ubungako (coefficient of performance) libuye liphinde liphelele kusuka kunge-3.5 usuku kunge-4.2. Kunegugu eyodwa futhi. Ukuphatha amandla okulahla ngendlela efanelekile kwenza uhlu omkhulu. Ukukhupha ukuba kungakanani amandla okulahla ekuseni lapho izindlu zingavali manje kunciphisa impilo yezimbotshane. Lokhu kunciphisa imali ngexesha futhi kanti kanjalo kuhlukanisa amandla okulahla phakade kubantu ngemizuzu ethile.

Izixhumanisi Ezibalulekile Zokuncipha Amandla Ezilonda

Izivuno Ze-Mandla Nge-Variable (VSDs) Ngomlando Wokulahla

Izinqamleli zokulahla amavungu kusasa zihlanganisa izivivekelo zokushisa okuthe ngezikhathi (VSD) ukuze zilungiselele izilinganiso zomthwalo ngokulinganisa konke abantu bengaphandle nokuthi ububi buhlanzekile kangakanani phakathi. Lezi zivivekeli zifakela ukulahlwa kwamavungu kuleso siyadinga ngempela kodwa akakhathaliseki kuqhubeka ngokuphelele, lokhu kushaya ukuthi kwenzeke ukudunyelwa kwezimali. Xa kusebenza ngokuphelele kuphela kwe-80%, lezi zivivekeli zibeka isilinganiso sokusebenzisa amavungu ngapro kwelesibili ngokuxoxwa kuka ASHRAE ngo-2023. Inkinga yokulungiselela izilinganiso ayisizo kuphela ekugcineni izixhobo zibe namandla angaphezu njengoba akukho mlando kumakomponenti, kodwa futhi ivikela ukulahlwa kwamavungu ngokuphelele embangalasini ukuze wonke umuntu abe nemiphumphanyoni yekhono ngaphandle kokuguquka kwesimo sekalendulo.

Izinhlelo Zokuhlenga Ezihlakaniphayo Ezenza Ukusebenzisa Amavungu

Ukuthola ubume bomoya obuhle ngaphandle kwezinkinga eziningi yizinto eziphathelene nezinhlelo zokuhlaka esivinini. Isicwangciso esishicilelwe ngo-2023 sithole into ethintekayo mayelana ngezibuyekezo ze-filter. Xa kushintshwa amafilter asebenzayo MERV 8 kuze kube MERV 13 amakhubalo angcono, uhla lwesimilo kuphakathi kungaba ngu-0.15 inches yesayizi yamandla wamanzi uma lezifilter ziqashelwe kahle nokulungiswa. Lokhu akukho mntu akudingi ukuthi kuncane, kodwa uzijabule lokhu: izimoto zihlasela phakathi kwe-25% ne-35% yezimali ezenziwa yonke emsulwa we-HVAC. Ngakho ke okunye okuncane okuhlelekileyo ekuxhaseni kwamandla kususela kumoto kungaba yizimali ezihlakaziywa emali yokumema kanye. Abaphathwayo basebanga kufanele bahlale behluphe isimo phakathi kwezinkalo zefilta nezimali zokusebenza xa bezenza izinqumo ngokulungiswa.

Izimoto Ezihlakaniphileyo, Ibhilendi, Nezimfakelo

I-ECMs inemfazwe enkulu kakhulu phakathi kwe-92 ne-96 ipheresente, okubamba izinyawo zezinhlekele zokunqamula ezenziwa ngendlela eyisiseko ezihlelekela ngaphezu kwe-80 ukuya ku-85 ipheresente yokusebenza. Lezi zinhlekele ziyishintsha isivinini nesikhathi sakhe ngendlela eyayiphatha, futhi zibe nzima kakhulu ngokujwayelekile. Okusebenzayo kufaqa kangcono uma kudwelashiswa ngezinhlelo zifani zomthombo ozintsha ezikhipha izimali zokungahlinzeki ngamathuba angu-20%, ngokwesicwangciso saseAir Movement Institute ngo-2023. Lokhu konke kukhipha amanzi akhiwo kakhulu ngaphandle kokuthi indlela iyaphumelela kanjani. Izixhobo zomcabango zenza okwengeziwe, zivumela ukulungiswa kabonke kwezinkomba ze-AHU ngokulinganisa nokuthenga kwempilo kunge ngokusethelwe.

Ukubuyisa Isishunqulelo Nokunciphisa Ukugcwalisa Kwi-AHUs

Izinhlelo Zokubuyisa Isishunqulelo KuZinhlelo Zokuphumula

Izinhlelo zokubuyisa isishunqulelo zithola 50–70% yezishunqulelo zokushisa esiphumayo kumoya ophumayo, zibizela izindleko zokushisa nezindleko zokucindezela ngama-35% (Bai njengoba et al. 2022). Izinhlelo ezihlelekile kuzo kufana:

• Amakhohlwe asebenzayo : Thumela umthubi ngokuhamba kwamanzi phakathi kwezinyawo zokunika nokuthintela, ukuthulaswa kwebholiya ngapha kuka-25–40% emakhaya apholile
• Izimanyathelo zomthubi zezincwadi : Fumanisa ubunjwe bomthubi obungu-60–80% ngaphandle kokulahlekelwa okuphazanyayo phakathi kwezinyawo zomthubi

Lezi ndlela zingakheka imali yekhowudi ye-HVAC ngamayini $0.15–$0.30 ngosuku lwangaphandle kwezindlu zezencithakaliso, ngokomlando wezinhlelo zokudala i-Air Handling Unit.

Ukukhanya nokunqoba: Ukuthulaswa kokulinganisa kokushisa

Xa umoya waphandle kusabela okwengeziwe kokuqukethwe phakathi, izikhwama zihluphele ukulungiselela ukusabela ngendlela engafanelekile njengoko kuzokwenzeka uma kusebenzisa izikhwama ezobukhona. Kumaqondo apho amazulu afana nezinye ezinemithetho yezulu epholile, lezi zinhlelo zingahlupha ukusabela kwakhona kusukela ku-30% usuku ku-50% ngokwesiqephu eshlawulekile ngoLiu nakwakhe ngoKwindla. Kwiminyaka yesiSebenza naseMfumbatha xa izindleko ziyahlanjwa, izindawo eziqukethe umntu mngeni ungasuka uzibona izigaba zokusa emva kusukela ku-8 ku-12 degrees Fahrenheit ngokuphuhlisa isikhathi sokusebenza kwe-economizer. Iziviko ezifika kamva zebonisa ukuthi uma izinkampani zilungise izindlela economizers zasebenza ngazo, zizofumana amahora angu-650 ngonyaka ngalinye ekuphumuleni kwe-mechanical cooling operations emasuntwini akhethekileyo. Lokhu konke kukwenza ukuhlupha okukhulu ngexesha elide kubaphathwayo befasiliti ababheka iindlela zabo zokugcina inyaniso.

Ukususa umoya ngonothelela ukunciphisa isebenza seHeat Pump

Ukusebenzisa umoya othule ekuseni ukusula umphempheko kumakhaya kungahlenga kakhulu okufanele kusulwa ngomso. Izigaba zibonisa ukuthi le ndlela ihlinza ukunciphisa isebenza sangaphambi kweziphumo phakathi kwe-15 kuze kube ngu-25 iphersenti, futhi amathemperetsha endaweni engaphakathi ahlola phansi kabusha kwe-4 kuze kube ngu-7 i-Fahrenheit ngenyanga ethulile. Izikolo nezindawo ezinkulu zokugcina zihlenga kakhulu kule ndlela ngoba zazinzima izikhala ezinkulu ezingavuli. Indlela iyasebenza ngamadhampera atholakala ngasasa futhi namathuba amabhobhozi ekuqhubekisa komoya okusha okufanele angene. Le teknoloji ayasiza ukuthola impumelelo ephelele kususela ekuseni ngaphandle kokwenza ububi bomoya phakathi bengcono kubantu abasekhona.

Ivikiweka Ezinhle Nokuhlanza Kwezenzo

Ukuphuhlisa Okunembulelo Nezimiso Ezifanele Ukuncipha Isivuno

Ukumisa kwakhona kuhle kuyilwa ukusebenza kwe-AHU ngokwemigomo yokuqashelwa, kuconakala ukuthatha okusha kwezimali ezingu-12–18%. Ngokulungisa izikhathi zokunyakaza kanye nokuvikela umkhawulo wendawo ngemva kokuphucuka, izinhlelo eziphathelene zizivikela ukuba zihlukanise izindawo ezingahleki. Izifakelo ezisebenzisa ukumisela ngexesha libe ngcono zibiza ukuthatha okusha kwezimali ezingu-35–40% emva kwezinsuku zokusebenza kodwa zihlinzela isimo esihle sokuxhasa abantu.

Ukuhlengahlenga kanye nokuzincaza kwezimpendulo zokusebenza kwe-AHU

Ukuhlengahlenga okwenziwa ngu-IoT kuhlengahlenga ngokuphindaphindi imigangatho njengezinzo zezenzo, izinkuni zezingcingo, kanye nesimo sesimoto ukuze kubekwe amandla aphansi ngokushesha. Izixhobo zokufunda kwamachine zizincaza idatha yangaphambilini ukuze ziphawule amathuba okulungiswa kanye nokumisa izikhathi zokusebenza. Ngokwesithembiso sika-2023 seCommercial Demand-Side Management Study, izimbili ezingasebenzisa lezi zincazelo zithatha okusha kwezimali ezingu-18–22% ngonyaka.

Ukusimiswa kwezimo zokusebenza kweAir Handling Unit (DC kanye NV)

Izinhlelo zokulungisa kwevuntshontsho ezihlwayelwe yidinga zisebenza ngokuthi zilungiselela umthwalo wokuphuma kwe- airflow ngokulinganayo kwezimali ze-carbon dioxide ephathaladwa endaweni. Lokhu kungaba yindlela yokunciphisa ukusetshenziswa kwamandla wefan kusukela ku-25% usuke ku-30% emakhaya apho abantu bathanda ukufika nekufa ngesikhathi esigcwele sesikhashana. Kanti kanjalo kukhona ivuntshontsho yosihlanu eyayisebenzisa izulu ezibuhlope kangaka ngasebusuku ukuchitha izindlu kabefore ekuseni kufika. Izahluko zazama kusho ukuthi le ndlela inquma inkohlakala yokusebenzisa i-air conditioning ngasikhathi esijulile saseday kusukela ku-15% usuke ku-20% emaphakathini apho izulu ziyanele. Ukucophelela lezi zindlela ezinezimo eziphinde zingcono kunciphisa ukusebenza kwezinhlelo zokuphatha izindlu ngaphandle kokuthi kungabi yisikhathi sezinkanga noma izimbili, isikhathi sokuthenga esikhathini noma usihlwanini lapho amakhulu akhona aye ezindlini.

Ukuphatha nokukhetha ukuze kutholakale okunzima komthelela

Ukuphatha okudala kwezivuno zezimali zokuthutha izimali zokuthutha

Ukuphathwa ngaphambili kuyakwanda inzuzo ye-AHU nge-15–30% futhi kuyawudlula ubude beqondo (I-Journal ye-ASHRAE 2023). Inkonzo yekhono ephindwe ngamashumi amabili ayisikhombisa kumele ibe yinhloso:

• Ukushintsha kwemephe (imiphe embi ihlukanisa isayizi yesivuno sefan ngama-10–15%)
• Ukuhlola kwebhelti (ukungabiqhaki kususa ama-5–8% wamasayizi ekhomphutha)
• Ukucima kweekhothi (iikhothi ezimbhalalayo zihlanza inzuzo yokuhambisa ukushisa nge-25–40%)

Isiphumo seemphe enzima nemithombo engavulanga emisebenzini yokunyusa izimali

Imithombo ezingavulanga iyasebenza izimali eziphakathi kakhulu ngama-22% ngonyaka kunazo ezivulwayo, ngokwesithembiso se- inkombo Yezimali Zokusebenza Kwemithombo Ye-HVAC 2022 . Ukungabiqhaki kwezimali kumgangatho kwenza ukuba kuhlengene ngama-18% futhi kumthintele ukuthi izikhamphutha zisebenze ngamandla angaphezu kuka-30% phambi kwezimali ezide, kuyakhiqizela ukugcinwa futhi kuyavutha izindleko zomnotho.

Izinto Ezibalulekile Ekukhetheni Imithombo Esebenzayo Ngokushesha Nezimali

Xa ukhetha i-AHUs, qhathanisa okubaluleke:

1. Ukudizaina okwamandla okuthuthela umsebenzi wokulawula uhulumeni, okunikeza ubungako obubi ngama-45% kunzima zokulawula ezinezima eziphethwe
2. I-Motors eECM ngebungako ebiya kuma-92% kunzima zomlando ezingama-80%
3. Izimboni ezigcwele ezadizainiwa ukugcina izinkinga zodlame ngezansi kwe-0.2" yendawo yamanzi

Ukukhetha kwemithwalo emibini yesishayamthetho kubangelisa ama-12–15% wezindleko zokuphila ngokuvamile ngokuba kunezilinganiso zokukhululwa komoya nokuthatha kwezimali.

Ingcane Yophando Kusuka Kwinkokheli Yokuqala Ekukhethweni Kwe-AHU

Nakuba i-AHUs enobungako obuphelele ibiza ama-20–35% ngaphezulu kwezindleko zokuqala, kodwa kahle ihlala isebenza ngaphakathi kwezinyanga zama-9–12 ngokuthutha kwezimali namakhono (DOE 2023). Uhlaziyo lwophando lombuzana kuquka ama-38% wokuthutha kwegcobo, futhi ukuqashwa okuphathikayo kususa izindleko zokuhlela uphondo nge-27% ngaphakathi kwezingu-15.

Imibuzo Evame Ukubuzwa

Yini indima yezenzo zokulawula amanzi emshini wokulawula umoya?

Izenzo zokulawula amanzi (AHUs) zingilimi eyisisekelo emshini wokulawula umoya eyenzo ukulawula nokulawula umoya ngendlela efanelekile, ikhomba kakhulu ekubeni yingxenye yobungako bomoya.

Ukuthi iziviveka zokuguquguquka kwezivuno (VSDs) zazinzela kanjani ekulondolozeni imithwalo yamandla e-AHUs?

Iziviveka ziguququka izivuno ngokulinganisa ngezidingo, zolahlaza ukulahlekelwa kwamandla futhi zongezisa ubude bebusuku bezixhobo.

Kutheni okungcono kokusebenzisa ifilter ezinezimiso ezihle kwi-AHUs?

Izifilter ezinezimiso ezihle, njenge-MERV 13+, zolahlaza ukukhohlwa kwezivuno, ngakho kusabalala imithwalo yesipha sefan futhi kulondoloze amandla.

Ukuthi ukulondoloza kwezulu kusebenza kanjani kumathuba okuphatha izulu?

Izinhlelo zokulondoloza izulu zibamba amandla wesilawu kumoya ophumayo ukuze aphinde amoya ofika, zolahlaza imithwalo yokushisa nokubanda nguya ku-35%.

Kutheni ukulungiswa kanye kubaluleke kakhulu kwi-AHUs?

Ukulungiswa kanye kugcina iqiniso lokusebenza okuhle, kuhlala ukusetshenziswa kwamandla, futhi kongeza ubude bebusuku bezinqubo ze-AHU.