Shanghai Sinpar Scientific Instrument Co.,Ltd.
Intake Air Humidity Control System

Intake Air Humidity Control System

Intake Air Humidity Control System Unit is equipped with an adjustable refrigeration circulation system replacing the previous “ice tower”, used for chilling and dehumidifying intake air to research and motor method octane test engines. The air control system is connected through the humidifier tube to the carburetor for regulating the moisture content of intake air into octane engine at a constant 25-50 grains of moisture prescribed of dry air as specified by ASTM D2699, ASTM D2700, ASTM D2885.

The system provides constant filtered air, which is dehumidified through pipes and finned cooling heat exchangers in which refrigerant circulates.
The system is installed in a movable industrial cabinet, suitable for different laboratory space conditions.

Intake air humidity control system for cfr octane engine

Intake air humidity control refrigeration system

The Refrigeration System

is equipped with a separate stainless-steel reservoir of 5-liter refrigerating liquid.
The temperature range of the cooling fluid could to be from ambient temperature to -10°C with the stability of 0.5°C. The refrigerating temperature and refrigerating time are adjustable, using a digital control panel.
intake air control cooling circulation system

The Cooling Circulation System

 is equipped with a pump to circulate the cooling fluid to octane engine’s carburetor and to the fuel bowl which needs chilling.
Plastic hoses are used for connecting to the carburetor by the quick couplings for cooling the carburetor. This circulation system includes a condensate pan and drain line.
intake air humidity control panel

The Temperature Control Panel

includes a main power switch, a pump power switch, a refrigerating time adjust-key and a digital display for temperature controller.
The equipment comes with sound-light alarm, when it’s lack of cooling liquid.

Intake Air Humidity Control System Specifications

Applicable Standard
ASTM D2699, ASTM D2700, ASTM D2885
For RON and MON Methods Octane Engines
Operation Mode
Digital control panel
Temperature Cooling Range
From laboratory ambient to -10°C
Temperature Stability
Intake Air Chilling
Cooling Fluid Volume
5L liquid
Cooling Medium
Circulation Mode
A pump circulates the cooling liquid from reservoir to the carburetor through plastic hoses
Connection Mode
Quick couplings
Power Switches
A main power switch and a pump power switch
Power Supply
220V 50Hz/60Hz with Single Phase
Safety System
Audible alarm for shortage of cooling liquid;
Over temperature and overload protection
95.00 kg
46x46x160cm (without humidifier tube)
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