Tashar wutar lantarki ta Bunnerong

Tashar wutar lantarki ta Bunnerong tashar wutar lantarki ce da aka harba kwal a yankin kudu maso gabashin Sydney na Matraville, New South Wales, Ostiraliya wacce aka dakatar da ita a 1975, kuma daga baya ta rushe. Lokacin da aka ƙaddamar da na'urorin samar da wutar lantarki na karshe, ita ce tashar wutar lantarki mafi girma a yankin kudancin ƙasar, mai karfin megawatts 375 (MW) daga turbo-alternators goma sha daya. Ta iya samar da kusan kashi ɗaya bisa uku na bukatun wutar lantarki a jihar a lokacin. Ya kasance mafi ƙarfi har zuwa kammala tashar wutar lantarki ta Vales Point a 1966.

Acikin 1924, an zaɓi wurin mai girman eka 117 na tashar wutar lantarki. Tashar tana kan titin Bunnerong acikin Matraville.

 Bunnerong 'A' tashar - 175 MW 
An gina Bunnerong da farko tare da tukunyar jirgi guda goma sha takwas daga Babcock & Wilcox Ltd (Birtaniya), suna bada tururi a  da , tare da kowane tukunyar jirgi yana samar da  na tururi. Megawatt shida megawatt (MW) Metropolitan-Vickers biyu-cylinder turbo-alternators an gina su tsakanin 1926 da 1930 ta Ma'aikatar Lantarki na Majalisar Municipal na Sydney, ɗaya daga cikin manyan hukumomi biyu da ke da alhakin samar da wutar lantarki a lokacin. Turbo-alternator na farko ya fara aiki acikin Janairu 1929, na shida kuma acikin Janairu 1930. An samar da na yanzu a kilovolts 11 (kV) kuma ya tashi zuwa 33 kV don watsawa. Tare da karfin 150MW, Bunnerong ita ce tashar wutar lantarki mafi girma a New South Wales. An kawo na'urar ta bakwai mai karfin MW acikin watan Satumba na shekarar 1937, wanda ya kara karfin zuwa 175 MW. Wannan shigarwa na asali daga baya an san shi da tashar Bunnerong 'A'.

 Bunnerong 'B' tashar - 200 MW 
Tashar Bunnerong 'B' ta fara aiki acikin 1939, tareda ƙaddamar da injin turbo-madaidaicin 50MW mai lamba 3 (Lambar 8) wanda CA Parsons da Kamfanin ke bayarwa. Na biyu turbine 50 MW (Lamba 9) ya biyo baya acikin 1941, wanda yakawo ƙarfin Bunnerong zuwa 275 MW. Bunnerong 'B' Boilerhouse yana da tukunyar mai na Babcock & Wilcox guda huɗu, kowanne ya samar da 300,000lbs/hr na tururi a 600psi. Acikin 1949, an ƙara mai guda biyu, tukunyar jirgi na Velox daga Gibson, Battle & Co Pty Ltd na Sydney. Kowannensu na iya samar da ƙarin 165,000lbs/h na tururi a 600PSI da 825°F. Kasancewar tashar nau'in kewayon waɗannan tukunyar jirgi na Velox na iya bada tururi zuwa ko dai tashoshin A ko B.

Masu tanki na tashar 'A' sun sha fama da raguwar aiki da kuma rufewar da ke da alaƙa saboda ƙarancin manyan kwal ɗin da aka zaɓa da hannu bayan an fara aikin haƙar ma'adinai. An ƙera tashar 'B' ta zamani ta zamani don ɗaukar ƙarancin inganci, ƙazantaccen kwal ɗin da aka fitar acikin ma'adinan injina, amma matsalolin samar da kayayyaki yana nufin sau da yawa yana karɓar babban samfurin da akayi niyya don tashar 'A'. Acikin 1946, an saka ƙarin masu ƙone mai a kowane tukunyar jirgi, don rage illar ƙarancin kwal da batutuwa masu inganci.

An bada izini na uku na 50MW Parsons turbo-alternator a cikin 1947, sai naúrar iri ɗaya ta huɗu. Waɗannan injunan biyu na ƙarshe an ciyar da su ta hanyar tukunyar tukunyar mai guda huɗu Simon-Carves wanda aka ƙididdige su akan 300,000lb/h, suna gajiyar da wani babban bututun siminti. Kammala tashar Bunnerong 'B' ta ƙara yawan ƙarfin zuwa wani ci gaba mai ƙima mai girman MW 375, wanda ya sa Bunnerong ta zama tashar wutar lantarki mafi girma a yankin kudanci. A lokacin gwajin ƙiba acikin 1958, an sami iyakar 382 MW.

Bayan kammala tashar 'B', sama da mutane 1,600 ne akayi aiki a wurin. Yawancin rikice-rikice na masana'antu da suka shafi yanayin aiki mara gamsarwa ya haifar da raguwar wutar lantarki, wani lokacin har tsawon makonni.

 Bunnerong Railway Branch 
Majalisar ta gudanar da nata layin dogo mai zaman kansa wanda ya haɗa tashar wutar lantarki da Yard Kayayyakin Botany.Bunnerong Power Station Railway Australian Railway Historical Society Bulletin September, 1948 p30 Titin jirgin ya cigaba da aiki a matsayin wani layi na sirri a lokacin da hukumar samar da wutar lantarki ta karɓe tashar wutar lantarki, ciki harda rufe shingen da akayi wa tashar Boral. A ranar 19 ga Nuwamba, 1966, anyi wani mummunan haɗari lokacin da jirgin ƙasa ya gudu daga matakin wannan siding.Runnaway Train on the Bunnerong Branch Oakes, John Australian Railway Historical Society Bulletin, February, 2000 pp 50-55.

 Hukumar Lantarki ta New South Wales 
An kafa Hukumar Wutar Lantarki ta New South Wales acikin 1950, kuma ta mallaki ikon samar da kadarorin Majalisar gundumar Sydney (wadda ta karɓi Majalisar Municipal na tashoshin wutar lantarki na Sydney a 1936), gami da Bunnerong da Pyrmont a 1952.

 Rufewa da Rushewa 
Tare da kammala sabbin tashoshin wutar lantarki, Bunnerong 'A' ya daina amfani da shi a shekara ta 1973, an mayar da tashar 'B' zuwa ayyukan samar da agajin gaggawa, kuma an dakatar da aikin gaba ɗaya acikin 1975. An fara cire kayan aikin acikin 1978, kuma an kammala shi sosai ta 1981. Anyi amfani da manyan injinan iskar gas a wurin daga 1982 zuwa 1984, amma an fara rushewar bayan an cire su. An ruguje tulin iskar gas mai tsayin mita 112 na gidan bunnerong 'B' acikin Disamba 1986, kuma an lalata yawancin manyan tashoshin 'A' da 'B' a ranar 28 ga Yuni 1987. Kamfanin na Amurka, Controlled Demolition Incorporated ne ya dauki nauyin rushewar. Babban gidan sauyawa daga 1926 ya kasance a wurin har zuwa matakinsa acikin Maris 1994. Alamomin tashar wutar lantarki kaɗan sun ragu.

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