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2. Methanation - Wikipedia

   en.wikipedia.org/wiki/Methanation

   Methanation is an important step in the creation of synthetic or substitute natural gas (SNG). [7] Coal or wood undergo gasification which creates a producer gas that must undergo methanation in order to produce a usable gas that just needs to undergo a final purification step.

3. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   Institutional heating systems (office buildings or schools, for example) can use low-grade, inexpensive bunker fuel to run their heating plants, but capital cost is high compared to more easily managed liquid fuels. Natural gas is a widespread heating fuel in North America and northern Europe. Gas burners are automatically controlled and ...

4. Annual fuel utilization efficiency - Wikipedia

   en.wikipedia.org/wiki/Annual_fuel_utilization...

   The annual fuel utilization efficiency (AFUE; pronounced 'A'-'Few' or 'A'-'F'-'U'-'E') is a thermal efficiency measure of space-heating furnaces and boilers.The AFUE differs from the true 'thermal efficiency' in that it is not a steady-state, peak measure of conversion efficiency, but instead attempts to represent the actual, season-long, average efficiency of that piece of equipment ...

5. Natural gas has never been this upside-down as negative ... - AOL

   www.aol.com/finance/natural-gas-never-upside...

   That's what has been happening more and more frequently in West Texas, where the closing price of natural gas has been negative for 57 trading days this year through the end of July, the New York ...

6. District heating - Wikipedia

   en.wikipedia.org/wiki/District_heating

   They use natural gas as fuel, because it has less of an effect on the environment. The district heating system of Belgrade possesses 112 heat sources of 2,454 MW capacity, over 500 km of pipeline, and 4,365 connection stations, providing district heating to 240,000 apartments and 7,500 office/commercial buildings of total floor area exceeding ...

7. LO-NOx burner - Wikipedia

   en.wikipedia.org/wiki/LO-NOx_burner

   In the early 1990s numerous countries were in the process of substituting oil and coal with natural gas for their energy and electric power needs. To maintain this advantage as an "environmentally friendly" fuel, Australian gas utilities are effectively reducing gas losses ( methane emissions ) in their deliveries, and impose strict codes on ...