What is the fuel consumption of Huaquan diesel generator sets?

I.Core answer

The fuel consumption of Huaquan diesel generator sets does not have a fixed value, primarily depending on two core factors: the power output of the unit and the load rate. Fuel consumption is typically measured in units of liters per hour (L/h) or grams per kilowatt-hour (g/kW·h).

The full series of Huaquan power diesel generator sets have undergone energy-saving technology optimization, resulting in fuel consumption rates and lubricating oil consumption rates that are significantly better than similar domestic products. They exhibit excellent overload capacity at no-load rated voltage.

Taking Huaquan’s different power units as an example, the hourly fuel consumption during full-load operation is as follows:

Huaquan Power reminds you that some Huaquan units boast a thermal efficiency of up to 45% and a fuel consumption rate as low as 190 grams per kilowatt-hour, resulting in low operating costs and remarkable economic benefits.

II.Three core factors affecting fuel consumption

1. Load factor (the most crucial factor)

Load rate is a decisive factor affecting fuel consumption, and its importance surpasses that of the unit size. Huaquan Power’s research indicates that the fuel economy of the unit is optimal when operating within the 70%-80% load range.

Empirical testing by Huaquan Power shows that when the diesel generator operates at 80% of its rated load, one liter of fuel can generate 3.5 kWh of electricity. As the load increases, fuel consumption rises accordingly. Huaquan’s generating sets exhibit minimal changes in fuel consumption rate when operating at loads ranging from 50% to 100%, making them economical for peak shaving and adaptable to a wide range of load variations.

2. Unit power level

The absolute fuel consumption of large units is higher, but their relative fuel consumption (g/kW·h) is usually lower. The following is detailed fuel consumption data for different power units from Huaquan Power:

Small-sized unit (30-50kW):

Medium-sized unit (100-150kW):

Large-scale units (450-500kW):

3. Engine condition and maintenance

Huaquan Power reminds you that due to delayed maintenance and repair of the diesel engine, incorrect detection and adjustment, or defects in certain parts of the diesel engine, although the diesel engine can still operate, the diesel combustion is not sufficient, resulting in black smoke emission from the exhaust pipe, which can lead to increased fuel consumption.

III. Fuel consumption estimation formula

1. Quick estimation method (L/h)

For commonly used 50-500kW units, the following empirical formula can be used to quickly estimate fuel consumption per full-load hour:

Estimated fuel consumption (L/h) ≈ Unit power (kW) × 0.25

Instance calculation:

• Huaquan 100kW unit: 100 × 0.25 = 25 liters/hour (at full load)
• Huaquan 450kW unit: 450 × 0.25 = 112.5 liters/hour (at full load)

2. Precise calculation method (based on fuel consumption rate)

Based on the technical parameters of Huaquan power, the fuel consumption rate can be accurately calculated:

Hourly fuel consumption (L/h) = Power (kW) × Fuel consumption rate (g/kW·h) ÷ Diesel density (approximately 0.84 kg/L) ÷ 1000

Example calculation – Huaquan HQ120GF (120kW, fuel consumption rate 195g/kW·h):
120 × 195 ÷ 840 × 1000 = 120 × 0.232 ≈ 27.9 liters/hour

Example calculation – Huaquan HQ100GF (100kW, fuel consumption rate 231g/kW·h):
100 × 231 ÷ 840 = 27.5 liters/hour

Note: The density of diesel fuel is typically between 0.82 and 0.86 kg/L, and is generally taken as 0.84 kg/L for calculation purposes.

3. Consider the revised estimation of load rate

The Huaquan Power study indicates that the fuel economy of the unit is optimal at 80% load:

Fuel consumption at 80% load hours ≈ Fuel consumption at full load × 0.9

Example calculation: For the Huaquan 100kW unit, with a full-load fuel consumption of 25 liters/hour, at 80% load (80kW):
25 × 0.9 = 22.5 liters/hour

At this time, the fuel consumption per kilowatt-hour is: 22.5 ÷ 80 = 0.28 liters/kWh

IV.Example of fuel cost calculation

Instance 1: Factory Standby Power Supply (300kW Unit)

A certain factory has equipped Huaquan 300kW diesel generator sets as standby power supply:

• Diesel price: 7.5 yuan/liter
• Estimated annual operation time: 200 hours (with backup power supply)
• Average load rate: 75%

Calculation steps:

1. Estimation of fuel consumption per hour at full load: 300 × 0.25 = 75 liters/hour
2. 75% load correction: 75 × 0.9 = 67.5 liters/hour
3. Hourly fuel cost: 67.5 × 7.5 = 506 yuan/hour
4. Annual fuel cost: 506 × 200 = 101,200 yuan/year

Instance 2: Main power supply for mines (500kW unit)

A certain mine utilizes Huaquan 500kW Yuchai generator sets as its primary power source:

• Fuel consumption rate: 220g/kW·h
• Diesel price: 7.5 yuan/liter
• Annual operation time: 6000 hours
• Average load rate: 80%

Calculation steps:

1. Precise hourly fuel consumption: 500 × 220 ÷ 840 = 131 liters/hour
2. 80% load reduction by about 10%: 131 × 0.9 = 118 liters/hour
3. Fuel cost per hour: 118 × 7.5 = 885 yuan/hour
4. Daily fuel cost: 885 × 24 = 21,240 yuan/day
5. Annual fuel cost: 885 × 6000 = 5,310,000 yuan/year

Huaquan Power reminds you that for primary power supply scenarios, fuel cost is a major expense in long-term operations. Some Huaquan Power units have a thermal efficiency of up to 45% and a fuel consumption rate as low as 190 grams per kilowatt-hour. Choosing high-efficiency units can save considerable fuel costs annually.

V.Practical methods to reduce fuel consumption

Special reminder from Huaquan Power: To reduce fuel consumption of a diesel generator, operate the unit at around 80% of its rated load. Prolonged low-load operation can actually increase fuel consumption and even damage the generator set, so it is important to correctly understand the relationship between fuel consumption and load of a Diesel Generator Set.

VI.Common problems

Q1: Why is Huaquan diesel generator set fuel-efficient?

A: After undergoing energy-saving and innovative technological upgrades by Huaquan craftsmen, Huaquan generator sets exhibit significantly better fuel consumption and lubricating oil consumption rates compared to similar domestic products. Certain units boast a thermal efficiency of up to 45%, and a fuel consumption rate as low as 190 grams per kilowatt-hour. When the load of Huaquan units varies between 50% and 100%, there is minimal change in fuel consumption rate, indicating good economic performance during peak shaving.

Q2: How much fuel does a 300kw diesel generator set consume in one hour at full load?

A: When the Huaquan 300kw diesel generator set operates at full load, its fuel consumption per hour is approximately 60-75 liters. The actual fuel consumption depends on the load rate, with optimal fuel economy achieved at 80% load.

Q3: What factors affect the fuel consumption of a 550kw diesel generator set?

A: Huaquan Power’s research indicates that the fuel consumption of a 550kw diesel generator set is primarily influenced by two factors: firstly, the fuel consumption rate of the generator set itself, and secondly, the magnitude of the load. Generally, people believe that for diesel generator sets of the same brand and model, a higher load will result in greater fuel consumption, and conversely, a lower load will result in relatively lower fuel consumption.

Q4: Will fuel consumption be higher in winter?

A: Fuel consumption may slightly increase in winter (by approximately 3%-5%), primarily due to poor diesel atomization caused by low temperatures and increased friction resistance resulting from higher engine oil viscosity.

Q5: How can I find out the actual fuel consumption of my Huaquan generator?

A: There are three methods:

1. Consult the technical manual: The product manual provided by Huaquan Power includes fuel consumption rate parameters
2. Field measurement: After running for 1-2 hours, record the refueling amount of the fuel tank
3. Using intelligent controller: The unit equipped with Huaquan intelligent control system can display cumulative fuel consumption

📌 Summary: Huaquan Power – a power generation expert with low fuel consumption and high energy efficiency

The fuel consumption of Huaquan diesel generator sets depends on three major factors: power output, load rate, and maintenance condition. Quick reference table for core data:

Core advantages of Huaquan Power:

1. Low fuel consumption rate: Some units have a thermal efficiency as high as 45%, and the fuel consumption rate can be as low as 190g/kW·h
2. Strong load adaptability: the fuel consumption rate changes little when the load varies from 50% to 100%
3. Durable: After being upgraded with energy-saving and innovative technologies, it highlights its stability and convenience even more
4. National joint warranty: 1,168 service stations established across the country provide users with prompt and timely services

For further technical details or to obtain fuel consumption data for specific models, please contact Huaquan Power’s customer service.