Technical Summary: Specific Heat Transfer and Oil Cooler Specifications

1. Specific Heat Transfer (kW/°C)

The document provides data related to the specific heat transfer capacity of various oil coolers, expressed in kilowatts per degree Celsius (kW/°C). This parameter is critical for evaluating the thermal performance of oil coolers under different operating conditions.

2. Oil Flow Rates (Qoil)

Oil flow rates are specified in liters per minute (L/min) and categorized into two main ranges:

• Standard Range: 28 to 168 L/min
• "A" Range Oil Coolers: Multiple models with flow rates ranging from 7.7 to 380 L/min, depending on the specific model.

Specific models listed include:

• A178-720-4/CN-BR-D
• A120-814-4/CN-BR
• A120-524-4/CN-BR
• A120-324-4/CN-BR
• A104-564-4/CN-BR
• A104-314-4/CN-BR
• A104-214-4/CN-BR
• A083-411-4/CN-BR
• A083-241-4/CN-BR
• A083-190-4/CN-BR
• A065-411-4/CN-BR
• A065-241-4/CN-BR
• A065-161-4/CN-BR

3. Pressure Ratings

Pressure ratings are indicated as follows:

• 250 mb
• 2000 mb
• 3000 mb (noted in parentheses)

These values likely correspond to maximum allowable pressures or operating pressures for the oil coolers.

4. Additional Parameters

• Qw: Water flow rate, with ranges from 7.7 to 380 L/min depending on the model.
• Qmax and Qmin: Maximum and minimum flow rates, though specific values are not detailed in the excerpt.
• DPoil: Pressure drop across the oil cooler, with a reference to SAE-10 oil at 60°C.

5. Notes and Recommendations

The document includes a disclaimer that the guide values are subject to change without notice and recommends contacting the supplier to confirm selections based on thermal specifications.

6. Graphical Data

The text references a range of values for oil temperature and flow rates, possibly corresponding to a graph or chart illustrating the relationship between oil flow, temperature, and heat transfer capacity. Specific numeric values range from 0.1 to 10 (units not explicitly stated) and flow rates from 10 to 500 (likely L/min).

Critical Information Summary:

• Oil cooler models cover a wide range of flow rates suitable for various applications.
• Pressure ratings up to 3000 mb indicate robust design considerations.
• Heat transfer capacity is a key parameter for selecting appropriate oil coolers.
• Values are guide estimates; verification with manufacturer is essential.