Gas fosil: Perbedaan antara revisi
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=== Kandungan energi ===
Pembakaran satu meter kubik gas alam komersial menghasilkan 38 MJ (10.6 kWh).
== Penyimpanan dan transportasi ==
[[Image:Polyethylene gas main.jpg|thumb|right|Polyethylene gas main being laid in a trench.]]
Kesulitan utama dalam penggunaan gas alam adalah [[tranportasi]] dan penyimpanan. [[Transportasi jalur pipa|Jalur pipa]] gas alam sangat ekonomis, namun tidak praktis menyebrangi [[samudra]]. Banyak jalur pipa yang telah ada di Amerika Utara mendekati kapasitas mereka.
[[Carrier LNG]] dapat digunakan untuk mentransportasi [[gas alam cair]] (liquefied natural gas, LNG) menyebrangi samudra, sedangkan [[truk tangki]] dapat membawa gasa alam cair atau [[gas alam terkompres]] (compressed natural gas, CNG) dalam jarak dekat. Mereka dapat mentransportasi gas alam secara langsung ke pengguna-akhir atau ke titik distribusi, seperti jalur pipa untuk transportasi lebih lanjut. Hal ini masih membutuhkan biaya yang besar untuk fasilitas tambahan untuk [[pencairan gas]] atau [[kompresi fisik|kompresi]] di titik produksi, dan [[penggasan]] atau dekompresi di titik pengguna-akhir atau ke jalur pipa.
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In the past, the natural gas which was recovered in the course of recovering [[petroleum]] could not be [[profit]]ably sold, and was simply [[combustion|burned]] at the oil field (known as [[gas flare|flaring]]). This [[waste]]ful practice is now illegal in many countries, especially since it adds [[greenhouse gas]] [[pollution]] to the [[earth's atmosphere]]. Additionally, companies now recognize that value for the gas may be achieved with LNG, CNG, or other transportation methods to end-users in the future. The gas is now re-[[inject]]ed back into the formation for later recovery. This also assists oil [[pump]]ing by keeping underground [[pressure]]s higher. In [[Saudi Arabia]], in the late [[1970s]], a "Master Gas System" was created, ending the need for flaring. The natural gas is used to generate electricity and heat for [[desalinization]]. Similarly, some land-fills that also discharge methane gases have been set-up to capture the methane and generate electricity.
Natural gas is often stored in underground caverns formed inside depleted gas reservoirs from previous gas wells, [[salt domes]], or in tanks as [[liquefied natural gas]]. The gas is injected during periods of low demand and extracted during periods of higher demand. Storage near the ultimate end-users helps to best meet volatile demands, but this may not always be practical.
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[[bg:Природен газ]]
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