Biogas Engine

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Want to get rid of your surplus saplings ? Too many milk buckets in your chests ? Use the new Biogas Engine to power your Tree Farms ! Biogas Engines need liquid fuel for operation. You can use water (very slow, but no Fermenter required for production), milk (slow but a single bucket will last a long time) or Liquid Biomass (very fast, produces 5 energy power per tick, same as Combustion Engine running on Fuel, though one bucket of Biomass last much shorter than one bucket of Fuel) as fuel.

Biogas Engines need to be activated by a Redstone current like any other BuildCraft Engine. However, biogas engines have one additional quirk: they cannot explode from overheating, but they need a minimum operating temperature. You can fill a biogas engine up to the brim with delicious fuel and it will still refuse to start up. The reason is quite simply that it needs to reach a certain temperature before it can begin to burn fuel. To start the engine when it's new or whenever it has cooled down - for example when it has used up all fuel and has idled for too long - you will need to dump lava into the secondary tank on the right hand side. The engine will then start to heat up and once it has reached minimum operating temperature it will start to produce energy. Producing energy generates itself heat, so after the initial warmup a running biogas engine will keep itself heated without using up any further lava from its supply.

However there is one important exception: If you use just plain water to power your engine, the engine will not generate enough heat to counter the natural heat dissipation. A biogas engine that uses water will burn quite literally through it's whole lava supply, while one constantly supplied with liquid biomass or milk will happily chug along all day without so much as touching the lava. A water fueled engine will invariably use up all the lava in the secondary tank and stop producing energy. However, you can pipe in lava using BuildCraft pipes if you choose to do so.

Fuels

	Lava	Energy	Ticks
Water	Constant	1 MJ/t	1000
Milk	Startup/Restart only	2 MJ/t	40000
Seed Oil	Startup/Restart only	3 MJ/t	10000
Biomass	Startup/Restart only	5 MJ/t	15000

Engine GUI

•I. Resource Tank:

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Stores the fuel used in the engine. New fuel sources can only be used after the last drop of the previous fuel was used. Breaking and resetting the engine will clear all tanks.
•II. Heating Tank:
Stores lava required for startup / restarts or (in the case of water) for constant heat supply.
•III. Input Slot:
Takes lava, water, milk or biomass containers to fill the appropriate tank if space is available.
•IV. Burn Progress:
Shows how much of the current consumed unit of fuel is still remaining.

Crafting

Ingredients:

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•3 x Bronze Ingots
•1 x Glass
•1 x Piston
•2 x Bronze Gear

Produces: 1 x Biogas Engine