Diesel Engines

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 **Diesel Engines**

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## Diesel Engines   [ edit page ]

### Overview

Diesel Engines are engines that produce mechanical energy and run on diesel fuel. Diesel Engines include the small diesel engine, the medium diesel engine (formerly known as the aircraft engine), and the large diesel engine. Engine mechanics differ wildly depending on whether or not you are playing in simple mode or advanced mode.

# Advanced mode

### Overview

Please note that this section in particular is still largely a work in progress. A lot of data, such as the torque vs RPS, or the power vs RPS curves are particularly difficult to acquire experimentally since there is no good way to measure the torque output of an engine, or the load on an engine, especially since the torque output of the torque meter is nonsensical in the current version. In the future I would like to provide thorough experimental evidence to back up each of these sections. In the meantime though, I wanted to write down my findings so far.

## Usage

### Basics

In Advanced Mode, diesel engines have ports for fuel, air, exhaust, coolant in, coolant out, and mechanical power out. Pipes can be used to connect each of these ports to relevant resources such as fuel tanks, air intakes, exhaust ports, etc.

## Mechanics

### Torque, Power, and Fuel Consumption

In Advanced Mode, the torque, power, and fuel consumption are all variable. The torque and power that an engine can output are a function of RPS, and the fuel consumption if a function of RPS and load.

Include data on torque, power, and fuel consumption curves. Include derived data such as the most fuel efficient RPS, the most power efficient RPS, the most power per fuel efficient RPS, etc.

### Throttle

Although the throttle of a real life diesel engine usually restricts the air flow, fuel flow, or both, the throttle for a Diesel Engine in Stormworks represents the torque output of the engine, likely as a percentage of the total torque available to it at a given RPS.

Include experimental evidence this is the case.

### Stall

Diesel engines in advanced mode will stall when their RPS drops below 2, causing the engine to shut down.

### Heat and Cooling

Diesel engines produce heat as a function of RPS only: The load doesn't affect heat generation. At a constant RPS, the temperature of the engine will increase until the cooling rate matches the heating rate. Engines have an inherent cooling rate even without anything connected to the coolant ports, however the cooling rate can be increased by adding additional cooling such as radiators or heat sinks. Engine temperature does not affect engine performance, and the only concern for temperature is the overheat mechanic.

Include more data on heat mechanics.

### Overheat

When Diesel Engines reach a temperature of 120 they enter overheat mode and begin letting off a distinctive sound. In overheat mode, the heat production of the engine increases dramatically, causing the temperature to rise out of control. Engines will burst into flame if they stay in overheat mode for too long, destroying the engine. While overheat mode can be recovered from by reducing the throttle on the engine and allowing it to cool down, it is difficult to pull off without microcontroller assistance due to the incredibly short window to throttle down. For that reason it is recommended to ensure that the engine stays below 120 at all times.

### Fuel, Air, and Exhaust Percentage

When the player looks at the engine while it is running, a pop up will appear about the percentage of fuel, air, and exhaust. These percentages are frequently misinterpreted as the percentage satisfaction of the engine, when in truth these values are most often dictated by the throttle. For example, a throttle of 50% will set each of the fuel, air, and exhaust percentages to 50% as well. A throttle of 100% would set them all to 100%, and 0% throttle to 0%, etc. It is possible for engines to lack fuel, air, or exhaust, however it is far less common that people believe.

Include more data on when/how to tell an engine is or is not lacking some resource, as well as how that affects engine performance.