Universal Chemical Fuel Engine

The Universal Chemical Fuel Engine (UCFE) is an IV tier multiblock for generating power from nearly any type of combustible liquid. The UCFE effectively combines the recipes for the Large Gas Turbine, Rocketdyne F-1A Engine, and Large Combustion Engine into one very efficient machine with NO upper limit on its EU/t. The only exception is semifluids which still require the Large Semifluid Burner. The only other input requirement is combustion promoter which also improves the efficiency of the fuel up to the maximum of 150%. Rocket fuels use significantly less combustion promoter than gas/diesel fuels.

Spreadsheet: GTNH Power Planner 2.9

The UCFE has no tiered components. The dynamo hatch is limited to the center casing on the back of the structure. The remaining buses/hatches may replace any stable titanium machine casing anywhere on the structure. Multi-amp and laser dynamo hatches are supported for serious power generation. The fuel and combustion promoter may be supplied through the same input hatch if preferred. Use the Multiblock Structure Hologram Projector to visualize/build the structure.

Structure

• Controller: Front center, 3rd layer
• 100-115 Stable Titanium Machine Casing
• 72 PTFE Frame Box
• 39 Chemically Inert Machine Casing
• 20 Engine Intake Casing
• 12 Titanium Pipe Casing
• 10 Titanium Firebox Casing
• 1 Dynamo Hatch: Back center machine casing
• 1 Maintenance Hatch: Any machine casing
• 1 Muffler Hatch: Any machine casing
• 1+ Input Hatch: Any machine casing

The UCFE consumes all the fuel and combustion promoter in its input hatch(es) every second to generate a potentially unlimited amount of power with up to 150% efficiency. The only restriction is that there must be some amount of combustion promoter present to generate any power at all, and it voids excess power like any other multiblock generator. The UCFE does not explode from exceeding the maximum EU/t of the dynamo hatch or the total EU in its buffer, but it does continue to consume fuel and combustion promoter regardless if it produces anything or not.

The UCFE does NOT have any sort of warm-up period and immediately outputs the maximum amount of power that it can generate, unlike large turbines and most other multiblock generators. Therefore, it does not require an RS latch attached to a Lapotronic Supercapacitor to save on fuel and instead should just use an energy detector cover with a machine controller cover to enable the machine whenever power is less than 95%.

The UCFE generates power from gas, diesel, and rocket fuels. The following table lists the available options and their densities (EU/L). The most popular options are nitrobenzene, cetane-boosted diesel, high octane gasoline, dense hydrazine fuel mixture, and the green rocket fuel. Note that semifluids such as heavy fuel, raw oil, and nefarious oil are NOT included since those can only be burned in the Large Semifluid Burner.

Other than fuel, the only other input to the UCFE is combustion promoter, a fluid substance that provides the necessary conditions for combustion reactions. Combustion promoter also improves the efficiency of the fuel in accordance with the following equation, where ${\displaystyle {\displaystyle {\text{C}}}}$ is a constant associated with the type of fuel being burned and ${\displaystyle {\displaystyle {\text{R}}}}$ is the ratio of combustion promoter to fuel. The maximum efficiency is 150% but there are NO soft caps or upper limits on the total EU/t produced.

${\displaystyle {\displaystyle {\text{EU}}/{\text{t}}={\text{L}}/{\text{s}}\times {\text{EU}}/{\text{L}}\times 1.5e^{-{\text{C}}/{\text{R}}}\div 20}}$

The following graph depicts the relationship between efficiency and the ratio (${\displaystyle {\displaystyle {\text{R}}}}$) of combustion promoter to fuel for the two different values of ${\displaystyle {\displaystyle {\text{C}}}}$. Notice that rocket fuels max out around a ratio of 0.5 which means the input rate of combustion promoter should not exceed 50% of the input rate of fuel. Gas/diesel fuels, however, max out around a ratio of 2.0 which means the input rate of combustion promoter should not exceed 200% of the input rate of fuel. This relationship holds true regardless of the density or EU/L of the fuel.

The following tables list the exact amount of EU/t that can be expected with various input rates of fuel and various ratios (${\displaystyle {\displaystyle {\text{R}}}}$) of combustion promoter. The latter is represented as a percent of the fuel input rate. For example, supplying 10 L/s of nitrobenzene and 150% (15 L/s) of combustion promoter yields 1.17k EU/t. These tables are merely provided for reference and are not strict limitations--the fuel input rate can far exceed the values shown. Use the planner linked at the top for custom calculations.