Izitshalo Zamandla Kagesi Ngamanzi Ezamandla Avuselelekayo
Amandla kagesi asebenzisa amanzi (i-HPP) angomunye wemithombo yamandla avuselelekayo endala kakhulu esetshenziswa ngabantu futhi ayaqhubeka nokudlala indima ebalulekile ekushintsheni kwamandla ahlanzekile. Phakathi kokukhula kwesidingo sikagesi, ukukhula kwezimboni, kanye nezidingo zokunciphisa ukukhishwa kwegesi ebamba ukushisa, amandla kagesi asebenzisa amanzi ayisisombululo esifanele ngoba angakhiqiza ugesi ngezinga elikhulu ngokukhishwa kwegesi okusebenzayo okuphansi kakhulu. Ngaphezu kwalokho, ubuchwepheshe bamandla kagesi asebenzisa amanzi buvuthiwe futhi bungahlinzeka ngogesi ngokuthembekile kakhulu kuneminye imithombo yamandla avuselelekayo encike esimweni sezulu.
Indlela Amandla Kagesi Asebenza Ngayo: Ukuguqula Amandla Amanzi Abe Ugesi
Isimiso esiyisisekelo samandla kagesi asebenzisa amanzi ukuguqula amandla angaba khona amanzi (ngenxa yokwehluka kokuphakama) noma amandla e-kinetic amanzi agelezayo abe amandla omshini, bese kuba amandla kagesi. Ngokuvamile, amanzi agcinwe echibini adluliselwa nge-penstock aye ku-turbine. Ukuphonswa kwamanzi kuzungeza i-turbine, enomshaft wayo oxhunywe ku-generator. I-generator ibe isikhiqiza ugesi ngokufakwa kukagesi ngogesi. Ugesi ophumayo ukhuliswa ngamandla kagesi yi-transformer bese udluliselwa kunethiwekhi yokudlulisela ukuze isatshalaliswe emakhaya, ezimbonini nasezindaweni zomphakathi.
Ngaphezu kwamamodeli asekelwe emachibini, kukhona nezitshalo zamandla kagesi ageleza emfuleni ezisebenzisa ukugeleza komfula ngaphandle kokufaka amanzi echibini elikhulu. Lezi zinhlelo ngokuvamile zinomthelela omncane ekugcwaleni kwamanzi, yize ukukhiqizwa kwazo kukagesi kuncike kakhulu ekugelezeni komfula kwesizini.
Izinhlobo Zezitshalo Zamandla Kagesi Wamanzi
Amandla kagesi aphuma ngamanzi afika ngezindlela eziningana, kuye ngezimo zendawo, izidingo zamandla, kanye namasu okuphatha amanzi:
1. Idamu Lamanzi Amandla
Ukusebenzisa amadamu ukudala amadamu okugcina amanzi kungalawula ukugeleza kwamanzi. Lokhu kunenzuzo yokutholakala kukagesi okuzinzile futhi kungasetshenziswa ekukhiqizeni ugesi okuphezulu. Kodwa-ke, ukwakha amadamu amakhulu kuyabiza futhi kungabangela imiphumela ebalulekile kwezenhlalo nezemvelo.
2. Isikhungo Sikagesi Samanzi Esisebenza Ngomfula
Isebenzisa imifudlana yemifula enesitoreji esincane samanzi. Ifanelekela izindawo ezigeleza kahle emifuleni futhi ngokuvamile iyashesha ukwakhiwa. Inkinga ukuthi ukukhiqizwa kukagesi kuvame ukwehla ngesikhathi sesomiso.
3. Isitoreji Esipompiwe Amandla Okugcina Imfucuza
Lokhu akuyona umthombo wamandla oyinhloko, kodwa uhlelo lokugcina amandla. Uma ugesi uningi (isibonelo, ovela elangeni noma emoyeni), amanzi afakwa echibini elingaphezulu. Uma isidingo siphezulu, amanzi ayakhululwa ukuze aphendule ama-turbine. Lobu buchwepheshe bubalulekile ekuqiniseni igridi kagesi, ehlanganisa imithombo yamandla ephindaphindayo.
4. I-PLTM kanye ne-PLTMH (Mini/Microhydro)
Amajeneretha amancane afanelekela izindawo ezikude. Izitshalo zikagesi ezincane ngokuvamile ziyisisombululo sokufakwa kukagesi ezindaweni zasemakhaya ngoba zingakhiwa ngengqalasizinda elula, zisebenzise imifula emincane noma iziteshi zokunisela, futhi zikhuthaze ukuzimela kwamandla omphakathi.
Amandla kagesi aphuma emanzini njengensika yamandla avuselelekayo
Ngaphakathi kohlaka lwamandla avuselelekayo, amandla kagesi asebenzisa amanzi anenzuzo ehlukile: ikhono lokukhiqiza ugesi omningi ngobuningi obungaguquguquki. Ngokungafani namandla elanga nawomoya ashintshashintshayo, amandla kagesi angasebenza amahora angama-24 ngosuku, izinsuku eziyi-7 ngesonto uma nje amanzi etholakala. Ngaphezu kwalokho, amandla kagesi asebenzisa amanzi angalungisa ngokushesha ukukhishwa kwawo kwamandla, okwenza kube usizo ekugcineni ibhalansi yemvamisa yegridi.
Izitshalo zikagesi zamanzi zivame ukusebenza ngezindlela eziningi. Ngaphezu kokuhlinzeka ngogesi, amadamu angasekela ukunisela kwezolimo, ukulawulwa kwezikhukhula, ukuhlinzekwa kwamanzi angavuthiwe, kanye nezokuvakasha. Kwezinye izifunda, lezi zinzuzo zenza ukutshalwa kwezimali kwamadamu kube yigugu kakhulu ngenxa yomthelela wazo omkhulu kwezomnotho.
Izinzuzo zikagesi wamanzi
Ezinye zezinzuzo eziyinhloko zamandla kagesi asetshenziswa ngamanzi ezinhlelweni zamandla avuselelekayo zifaka:
– Ukukhishwa okuphansi kokusebenza: Izitshalo zamandla kagesi azishisi uphethiloli, ngakho-ke ukukhishwa kwekhabhoni ngesikhathi sokusebenza kuvame ukuba kuncane.
– Ukusebenza kahle kakhulu: Ama-turbine amanzi ngokuvamile anokusebenza kahle kokuguqulwa kwamandla okuphezulu uma kuqhathaniswa nezinye ubuchwepheshe bamandla.
– Ukuthembeka nokuphila isikhathi eside: Izitshalo eziningi zikagesi ezisebenza ngamanzi zingasebenza amashumi eminyaka kuya eminyakeni engaphezu kwengu-50 ngokunakekelwa okufanele.
– Ukuguquguquka kokusebenza: Izitshalo zikagesi zamanzi zingandisa noma zinciphise amandla ngokushesha, okusiza ukuzinza kwegridi.
– Amandla okusekela isitoreji samandla: Izinhlelo zokugcina ezipompiwe ziba “amabhethri amakhulu” egridi kagesi yesimanje.
Izinselele Nemiphumela Yezemvelo
Naphezu kokuba umthombo wamandla avuselelekayo, ugesi wamanzi unezinselele zawo. Ukwakhiwa kwamadamu amakhulu kungadala izinkinga zomphakathi nezemvelo ezidinga ukuphathwa okungathi sína.
1. Umthelela wemifula emvelweni
Amadamu ashintsha ukugeleza kwemvelo kwemifula, okuthinta ukugcwala kwenhlabathi, ikhwalithi yamanzi, kanye nendawo yokuhlala yezinhlanzi. Ukufuduka kwezinhlanzi kungavinjelwa, okuholela ekunciphiseni ukuhlukahluka kwezinto eziphilayo. Izixazululo ezivamile zifaka phakathi amaladi ezinhlanzi noma izinhlelo zokudlula, yize ukusebenza kwazo kuncike ekwakhiweni kanye nezinhlobo zendawo.
2. Izikhukhula zomhlaba kanye nokufuduka komphakathi
Idamu elikhulu lingacwilisa izindawo zokuhlala, umhlaba wezolimo, ngisho nezindawo zamasiko. Inqubo yokuthutha kumele ibeke phambili ubulungisa, isinxephezelo esanele, kanye nokubuyiselwa kwezindlela zokuphila zemiphakathi ethintekile.
3. Ukukhishwa kwegesi okuvela ezindaweni zokugcina amanzi
Kwezinye izimo, ikakhulukazi ezindaweni ezishisayo, ukubola kwe-biomass ngaphansi kwamachibi kungakhiqiza i-methane. Nakuba ubukhulu balokhu busaphikiswana kusukela kuphrojekthi kuya kuphrojekthi, lolu daba lugcizelela isidingo sokuhlolwa okuningiliziwe kwemvelo ngaphambi kokwakhiwa.
4. Ukuthembela ku-hydrology kanye nesimo sezulu
Izinkathi ezomile ezinde noma izinguquko emaphethini emvula ngenxa yokushintsha kwesimo sezulu kunganciphisa ukukhishwa kwamanzi kanye nokukhiqizwa kukagesi. Ngakho-ke, ukuhlela kwamandla kagesi asebenzisa amanzi kwanamuhla kumele kufake izimo zokushintsha kwesimo sezulu kanye namasu okuphatha amanzi isikhathi eside.
Amandla kagesi aphuma emanzini e-Indonesia: Amathuba kanye Namathuba
I-Indonesia inamandla amakhulu okuphehla ugesi ngamanzi ngenxa yemifula yayo eminingi, izifunda zezintaba, kanye nemvula enkulu. Izitshalo eziningana zamandla kagesi ngamanzi sezivele zisebenza eziqhingini eziningana, futhi amathuba okuthuthukiswa asele, ikakhulukazi ezitshalweni zamandla ezincane ezindaweni ezingakaxhunywa kugridi kagesi eyinhloko.
Ngaphezu kokuqinisa ingxube yamandla avuselelekayo, izitshalo zikagesi zamanzi kanye nezamanzi amancane nazo zingasekela intuthuko yesifunda. Amadolobhana abevame ukuthembela kumajeneretha kadizili anganciphisa izindleko zikaphethiloli, andise amahora okusebenza kwezomnotho wendawo, futhi athuthukise ikhwalithi yokuphila ngokufinyelela ugesi okuzinzile.
Kodwa-ke, ukuthuthukiswa kwamandla kagesi kumele kuhambisane nokuphathwa kwemvelo. I-Indonesia inezindawo eziningi zamahlathi kanye nezinhlobonhlobo zezinto eziphilayo eziningi. Ngakho-ke, ukukhethwa kwezindawo, ukuhlolwa komthelela emvelweni, kanye nokubamba iqhaza komphakathi kubalulekile ekuqinisekiseni iphrojekthi yamandla kagesi kagesi eqhubekayo ngempela.
Ikusasa Lamandla Amanzi Ekushintsheni Kwamandla
Esikhathini esizayo, indima yezitshalo zikagesi zamanzi kulindeleke ukuthi ibaluleke kakhulu, hhayi nje kuphela njengabakhiqizi bakagesi kodwa futhi njengento ephikisana nohlelo lwamandla olulawulwa amandla elanga nawomoya. Lapho izitshalo zikagesi zamandla elanga zikhiqiza ugesi owengeziwe emini, indawo yokugcina epompiwe ingamunca okweqile. Ebusuku noma ngesikhathi somthwalo omkhulu, amandla angakhishwa futhi. Ngakho-ke, ugesi wamanzi uba yingxenye ebalulekile yegridi kagesi enekhabhoni ephansi.
Kuvela nezinto ezintsha kwezobuchwepheshe be-turbine obungangcolisi imvelo, ukwenza imisebenzi yamadamu ibe yedijithali, izinhlelo zokuqapha ukuthuthwa kwenhlabathi, ngisho nokufaka kabusha amadamu akhona ukuze kwandiswe umkhiqizo ngaphandle kokwakha ingqalasizinda entsha ebanzi. Ngaphezu kwalokho, umkhuba wokusebenzisa izitshalo zamandla ezincane zamanzi (i-MHP) ezindaweni ezikude uzoqhubeka nokuba yinto efanelekile njengesixazululo sikagesi esizimele nesingabizi kakhulu sokusebenza.
Isiphetho
Amandla kagesi asebenza ngamanzi ayinsika eqinisekisiwe nethembekile yamandla avuselelekayo. Njengoba esebenza kahle kakhulu, ukukhishwa okuphansi kokusebenza, kanye nekhono lokuhlinzeka ngogesi ozinzile noguquguqukayo, izitshalo zamandla kagesi ezisebenza ngamanzi zidlala indima ebalulekile ekusekeleni ukushintshela ohlelweni lwamandla ahlanzekile. Kodwa-ke, imiphumela yemvelo kanye nezenhlalo yezitshalo zamandla kagesi ezisebenza ngamanzi—ikakhulukazi ezinkulu—idinga ukuphathwa ngokuhlela ngokucophelela, ukubonisana nomphakathi, kanye nokusetshenziswa kobuchwepheshe obufanele bokunciphisa ugesi. Ngendlela eqhubekayo, amandla kagesi asebenza ngamanzi angaba yisisombululo esibalulekile sokuhlangabezana nezidingo zikagesi ngenkathi kulondolozwa imvelo.
Uma ufisa, ngingalungisa lesi sihloko sibe amagama ayi-1000 ngqo (ngibala amagama ngokunembile), noma ngishintshe indlela yokubhala ukuze ibe yesayensi/ethandwa kakhulu njengoba kudingeka.
