Adjustable Shutter Ventilation for Genset Cooling Efficiency

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Solution Overview

Problem

Current gensets operate at fixed speeds, leading to inefficiencies as the fan consumes constant power regardless of load variations, resulting in energy waste and reduced system efficiency.

Innovation Solution

A power generation system with an adjustable ventilation system that uses temperature sensors and a controller to adjust the flow volume of the coolant medium through adjustable shutters, allowing the fan to operate at a constant speed while optimizing cooling based on load and temperature conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If the fan operates at a fixed speed to cool the engine, then the engine cooling is maintained, but the fan consumes constant power regardless of load variations, resulting in energy waste and reduced system efficiency

Engineering Contradiction:
Improvefan power consumptionVSAvoidengine cooling effectiveness
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The patent applies the Dynamics principle by making the ventilation system adjustable rather than fixed. The shutter can dynamically change its opening degree to match varying cooling demands based on engine load and temperature conditions, allowing the system to adapt between full cooling capacity and reduced airflow to minimize energy consumption while maintaining adequate cooling.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements Parameter changes by varying the airflow parameter through shutter position adjustment. The controller modifies the ventilation system's opening degree as a controllable parameter in response to temperature sensor feedback and load conditions, optimizing the balance between cooling effectiveness and power consumption.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If the shutter is adjusted to reduce coolant flow, then fan power consumption is reduced, but the cooling effectiveness may be compromised under high load conditions

Engineering Contradiction:
Improvepower generation efficiencyVSAvoidengine and generator temperature control
Core Design Contradiction:
ProductivityVSTemperature

Solution Approach 1:

The patent applies the Feedback principle by using temperature sensors to continuously monitor engine and generator temperatures and feeding this information back to the controller. The controller then adjusts the shutter position accordingly, ensuring that cooling effectiveness is maintained when temperatures indicate high thermal loads while reducing airflow when cooling demands are lower.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The ventilation system implements Self-service by automatically regulating its own airflow based on temperature feedback and load conditions without requiring manual intervention. The controller autonomously adjusts the shutter to match actual cooling requirements, optimizing system performance across varying operating conditions.

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution improves genset efficiency by reducing fan load and windage losses, enhancing power generation performance under varying loads and temperatures.

Implementation Method 1

Both the ventilation inlet and ventilation outlet have an adjustable shutter configured for adjusting a flow volume of a coolant medium through the ventilation system

Methodology Applied
Scientific EffectFluid flow control:

Implementation Method 2

One or more temperature sensors are disposed in or near the power generating system, and the one or more temperature sensors detect at least one of an air temperature, a cooling fluid temperature, an oil temperature, an engine temperature and/or a generator temperature

Methodology Applied
Scientific EffectThermal detection:

Implementation Method 3

the ventilation system is configured for cooling at least one of the engine and the generator

Methodology Applied
Scientific EffectForced convection: Forced Convection

Data Source

PatentUS8922033B2System for cooling power generation system
Publication Date: 2014.12.30 AI ALPINE US BIDCO INC
  • US8922033B2 patent drawing
  • US8922033B2 patent drawing
  • US8922033B2 patent drawing

AI summary

A power generation system is provided having a genset comprising an engine mechanically coupled to a generator. The genset is configured to generate electrical power. A ventilation system has a ventilation inlet and a ventilation outlet, and the ventilation system is configured for cooling at least one of the engine and the generator. Both the ventilation inlet and ventilation outlet have an adjustable shutter configured for adjusting a flow volume of a coolant medium through the ventilation system.