By Emily Gill
Dikutip dari Autocar, cara kerja sistem water injection ini adalah dengan menyemprotkan air ke dalam ruang bakar sesaat bensin masuk ke dalam ruang bakar. Fungsi air ini adalah untuk mendinginkan ruang bakar sehingga tenaga yang dihasilkan oleh mesin bisa lebih optimal. Secara garis besar, sistem water injection ini tak berbeda jauh fungsinya dengan intercooler pada mesin turbo yang umum digunakan saat ini. Selain mendinginkan udara yang masuk ke ruang bakar, sistem ini juga mendinginkan ruang bakar sehingga pabrikan bisa menambah tekanan turbo dan mengatur waktu pengapian lebih maju sebelum terjadinya knocking. Gas NOx sendiri tercipta ketika nitrogen di dalam udara yang digunakan mesin untuk pembakaran teroksidasi dengan oksigen yang berada di ruang bakar bersuhu tinggi.
Liputan6, Stuttgart - Saat mesin bekerja, panas yang tercipta di ruang bakar bisa mencapai 1.800 derajat Celcius. Bosch telah menguji water injection atau injeksi air, dan mengaplikasikannya untuk mobil buatan Jermarn. Pada langkah isap (langkah pertama), di mana bahan bakar dan udara masuk ke ruang bakar, maka di saat yang sama water injection dilakukan. Oleh karena itu saat bahan bakar dinyalakan di mesin, injeksi air dilakukan untuk menurunkan temperatur. Panas yang ada pada mesin ditransfer ke air, yang kemudian menguap keluar.
One of the most advanced water pumping facilities in Iraq has been constructed at the Rumaila oilfield to help boost oil production and support the field's long-term strategy. Cluster Pump Station Six (CPS-6) is the first CPS facility to be built at Rumaila for around 40 years. It is also the first CPS constructed by […]
BERLIN (Reuters) - Iraq’s Basra Oil Co is preparing to tender for a water injection project vital to increase its oil production capacity if talks with Exxon Mobil fail, the head of the oil ministry’s licensing and contracts office said. “We cannot wait for a longer time unless Exxon Mobil accepts the deal for the benefit of the two parties,” Abdul Mahdi al-Ameedi told reporters on the sidelines of the CWC Iraq Petroleum Conference in Berlin. Iraqi Oil Minister Jabar al-Luaibi said in October Iraq was in final talks with Exxon on developing the project, which consists of building oil pipelines, storage and a mechanism to inject water from the Gulf into oil reservoirs. Al Ameedi said part of the delay in negotiations with Exxon and Petrochina, another interested party, related to initial production rates from the Nahr Bin Umar and Artawi oilfields. “This will impact severely the economics of the project ... it affects the economics parameter, the profit share or the profit to the company.”
Teknologi water injection ini sudah ada sejak jaman perang dunia:A 20 to 50% gas mileage improvement can be yours with … WATER INJECTION WIZARDRYDuring the second World War, fighter pilots could push a button and inject a stream of water into the turbochargers of their monstrous powerplants . Some time later, Chrysler (among other auto manufacturers) installed water injection on a number of its large displacement engines . Sistem ini sekarang sudah banyak dipakai di dunia balap, berikut adalah salah satu merek terkenal, dikatakan bahwa penggunaan water injection bisa meningkatkan tenaga hingga 20%! Water Injection is most efficient with a 50/50 water alcohol (or methanol) mixture. Fuel Injection pumps cannot be used for water injection.
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