F5 Cetane Ratings | CFR Engines

This test method is used by engine manufacturers, petroleum refiners and marketers, and in commerce as a primary specification measurement related to the matching of fuels and engines.

The cetane number is determined in a precombustion chamber type compression ignition test engine at a constant speed. This method can be used for conventional middle distillate Diesel fuel, jet kerosene fuels, blending feedstocks, as well as unconventional fuels like synthetics, vegetable oils, and bio-diesel.

This test method involves determining the quality of diesel fuel using a standard single cylinder four-stroke cycle variable compression ratio, indirect injection diesel engine. The quality is measured on an arbitrary scale of cetane numbers, ranging from 0 to 100. However, typical testing is usually conducted within the range of 30 to 65 cetane number.

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The CFR F5 cetane rating engines are specified equipment for testing fuels according to:

ASTM D613:

Standard Test Method for Cetane Number of Diesel Fuel Oil

IP 41:

Petroleum Products - Determination of the ignition quality of diesel fuels - Cetane Engine Method

EN ISO 5165:

Petroleum Products - Determination of the ignition quality of diesel fuels - Cetane Engine Method

Features & Benefits

The F5 is the dependable choice, featuring a robust engine crankcase and cylinder head designed for unparalleled operating life.

The digital instrument control system delivers a host of benefits, including on-board handwheel position recording, automatic cetane number calculation, and multi-pass data recording.

Ready-to-use Excel-based reports generated, minimize calculation errors and the need to manually record data

XCP® TECHNOLOGY generates ready-to-use Excel-based reports that effectively minimize calculation errors and eliminate the need for manual data recording.

Built-in prompts, clear graphics, and color-coded indicators simplify the fuel rating

The fuel rating system is made clear and simple with built-in prompts, clear graphics, and color-coded indicators.

F5 Cetane Details

Standard CFR F5 System Inclusions:

Engine unit mounted to rigid base
Synchronous motor mounted to slide base (220/380/440V; 3 Ph; 50/60 Hz)
Variable compression ratio cylinder head with handwheel
Handwheen position sensor
XCP panel with touchscreen PC (120V, 1 Ph, 50/60 Hz)
Fuel shut-off solenoid
Three bowl fuel delivery system
Intake air heater
Exhaust surge tank system
Water cooled exhaust manifold
Desk with keyboard and mouse

	Motor Method (ASTM D613)
RPM	900 +/- 1%
Injection Timing	13 BTDC
Water Jacket Temperature	100 °C +/- 2 °C (212 °F +/- 3 °F)
Oil Temperature	57 °C +/- 8 °C (135 +/- 15 °F)
Oil Pressure	172 kPa-207 kPa (25 psi-30 psi)
Crankcase Vacuum	25-150 mm H2O (1-6 in H2O)
Intake Air Temperature	66 °C +/- 0.5 °C (150 °F +/- 1 °F)
Nozzle Passage Temperature	38 °C +/- 2.8 °C (100 °F +/- 5 °F)

Approximately 1.77 x 1.33 x 1.04m (H x W x D), 844 kg;
(69 ¾ x 52 ¼ x 41 in, 1860 lb)
Including concrete base: approximate height 2.15 m
(84 ¾ in), weight 1754 kg (3860 lb)
With exhaust surge tank: approximate depth 1.57 m (62 in)