Gas-fired internal combustion generator set--Essential reading for operation and maintenance
Methods for controlling the calorific value and temperature of gases
Foreword
When using a gas-fired internal combustion engine, do you often encounter these troublesome problems: fluctuating engine power, frequent carbon buildup on spark plugs, abnormally high exhaust temperature, and even occasional dangerous situations such as knocking and backfire? In fact, the core cause of these malfunctions often points to two easily overlooked key parameters: gas calorific value and intake air temperature.
Seemingly insignificant numerical fluctuations directly determine the combustion efficiency, power output, and lifespan of an internal combustion engine. This article will guide you through a thorough understanding of the logic behind these two parameters and corresponding control techniques, helping you minimize engine failures and maximize efficiency!
PART1
Calorific value of natural gas: the "core benchmark" of energy supply.
The calorific value of fuel gas is similar to its "energy density," referring to the heat released by the complete combustion of a unit volume of fuel gas, and is the foundation of an internal combustion engine's power output.
Many common problems in operation and maintenance are related to a mismatch in calorific value:
Too high calorific value: If the air-fuel ratio is not adjusted in time (increasing air supply), the mixture will be too rich, resulting in incomplete combustion and severe carbon buildup. This not only increases CO emissions but also clogs spark plugs and wears valves.
Too low calorific value: Insufficient energy supply directly leads to unstable power output from the unit. Furthermore, if the air-fuel ratio is not adjusted in time, an overly lean mixture can easily cause backfire and misfire, and long-term operation will damage the intake pipes.
PART2
Intake air temperature: The "invisible regulator" of the working fluid condition.
While intake air temperature may seem insignificant, it can indirectly affect the stability of engine operation by altering fuel density and in-cylinder conditions:
Excessively high temperature: Reduced fuel density means less fuel is actually burned, leading to "summer power decay"; simultaneously, increased end-compression temperature makes knocking more likely, and the resulting shock waves can severely damage the piston and cylinder walls.
Excessively low temperature: Uneven mixing of fuel and air slows flame propagation, reduces combustion efficiency, increases the difficulty of cold starts, and can even cause abnormally high exhaust temperatures.
PART3
Kelinyuan Core technology: "Proactive adaptation" rather than "passive response"
Kelinyuan's "Intelligent Adaptation" Solution
In the operation and maintenance of gas-fired internal combustion engines, fluctuations in gas calorific value and abnormal intake temperature are the core causes of common industry problems such as carbon buildup, knocking, insufficient power, and power reduction.
Traditional solutions often adopt a passive "post-event adjustment" operation and maintenance model, while Kelinyuan chooses to avoid the problem at its root.
Through four core technology systems—"in-cylinder direct injection + intelligent control + precise temperature control + safety protection"—Kelinyuan achieves "proactive adaptation" to gas parameters, shifting from passive response to proactive regulation. This not only effectively avoids traditional pain points but also ensures long-term, efficient, and stable operation of the unit. Ultimately, this directly translates into core benefits for enterprises: reduced operation and maintenance costs and a guarantee for continuous production and stable revenue.
