Compressor Chiller with Thermoelectric Module for Continuous Operation
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Solution Overview
Problem
Chiller systems face challenges in achieving tight system stability when compressors are controlled in an on and off mode, leading to inefficiencies, as frequent start-ups increase wear and reduce the compressor's lifespan, and existing solutions like resistive electrical heaters are inefficient.
Innovation Solution
Incorporating a thermoelectric module into the chiller system, which allows for continuous compressor operation and provides additional cooling capacity when needed, thereby maintaining temperature stability and extending compressor life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the compressor is controlled in on and off mode, then the system can provide cooling operation, but the system stability deteriorates and compressor lifespan reduces
Solution Approach 1:
The patent applies the continuity of useful action principle by enabling the compressor to operate continuously rather than in on-off cycles. A thermoelectric module is integrated into the coolant loop to provide supplemental cooling capacity, allowing the compressor to run at lower, more stable speeds without excessive temperature buildup. This continuous operation eliminates the wear and stability issues associated with frequent start-stop cycles while maintaining effective cooling.
2Temperature
If a resistive electrical heater is added to the coolant loop, then temperature control improves, but energy efficiency deteriorates
Solution Approach 1:
The patent replaces the resistive electrical heater with a thermoelectric module that uses the Peltier effect. Instead of generating heat through electrical resistance, the thermoelectric module actively pumps heat from the coolant loop using an electric current applied across semiconductor elements. This substitution maintains the ability to add heat to the coolant for temperature control while dramatically improving energy efficiency, as the thermoelectric device moves heat rather than generating it through resistance.
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
The thermoelectric module enhances system efficiency, stability, and accuracy in temperature control, reduces compressor wear, and extends its lifespan by allowing continuous operation with additional cooling capacity as required.
Implementation Method 1
a thermoelectric module connected in the coolant loop and adapted to transfer heat into and/or out of the coolant fluid
Data Source
AI summary
According to various aspects, exemplary embodiments are disclosed of chiller systems including thermoelectric modules, and corresponding control methods. In an exemplary embodiment, a compressor chiller system generally includes a refrigerant loop having a refrigerant fluid, a compressor connected in the refrigerant loop to compress the refrigerant fluid, and a condenser connected in the refrigerant loop to receive the compressed refrigerant fluid from the compressor and to condense the compressed refrigerant fluid. The system also includes a heat transfer component connected in the refrigerant loop to receive the condensed refrigerant fluid from the condenser, and a coolant loop having a coolant fluid. The heat transfer component is connected in the coolant loop to transfer heat from the coolant fluid to the condensed refrigerant fluid. The system further includes a thermoelectric module connected in the coolant loop. The thermoelectric module is adapted to transfer heat into and/or out of the coolant fluid.