Hybrid Compressor Drive for Building Micro-CHP Power Generation
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Solution Overview
Problem
Conventional centralized power generation and distribution systems experience significant energy losses due to thermal and distribution inefficiencies, and conventional air-conditioning systems rely on large compressors that contribute to high energy demand peaks, necessitating a more efficient localized power generation and distribution solution.
Innovation Solution
A hybrid power generation system utilizing a combination of an internal combustion engine and electric motor to drive a compressor in a closed-loop refrigeration cycle, enabling efficient power generation and distribution for localized environments, such as residential or commercial buildings, while also utilizing heat generated for additional energy needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If centralized power generation and distribution is used, then power can be generated at large scale, but significant energy losses occur during production and delivery
Solution Approach 1:
The patent divides the centralized power generation system into distributed micro-generation units located at individual buildings or facilities. Each unit independently generates its own power and thermal energy, eliminating the need for long-distance transmission and reducing energy losses during distribution.
Solution Approach 2:
The system enables each building or facility to serve its own power and heating needs through on-site micro-generation units. The units generate electricity and capture thermal energy for local use, making the system self-sufficient and eliminating reliance on centralized distribution infrastructure.
2Ease of operation
If conventional AC inductive motors are used to drive compressors, then air conditioning can be provided, but high energy demand peaks occur during continuous operation and startup
Solution Approach 1:
The patent combines the air conditioning compressor with a micro combined heat and power generation unit. The same engine that generates electricity also drives the compressor, and its thermal output provides heating or cooling assistance, eliminating the need for separate high-power AC motors and reducing peak energy demands.
Solution Approach 2:
The micro CHP unit performs multiple functions simultaneously: it generates electricity, provides thermal energy for heating or cooling, and drives the air conditioning compressor. This multi-functionality eliminates the need for separate dedicated AC motor systems and reduces overall energy consumption.
3Loss of energy
If micro combined heat and power generation systems are used, then thermal energy can be utilized on location, but device complexity increases
Solution Approach 1:
The micro CHP unit is designed to perform multiple functions within a single integrated system: electricity generation, thermal energy production, and air conditioning compression. This multi-functionality reduces the need for separate systems and components, thereby reducing overall system complexity despite the advanced capabilities.
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 system reduces energy losses by providing efficient power generation and distribution, lowering energy demand peaks, and utilizing waste heat for heating and cooling, thereby improving overall energy efficiency and reducing reliance on the electrical grid.
Implementation Method 1
engaging an internal combustion engine with the compressor, and operating the internal combustion engine to drive the compressor
Implementation Method 2
engaging an electric motor with the compressor; and operating the electric motor to drive the compressor
Implementation Method 3
a compressor operable to compress a working fluid of the closed loop circuit
Implementation Method 4
a closed loop circuit configured to operate a closed loop refrigeration cycle
Data Source
AI summary
A method is disclosed for generating and distributing electric power for localized use. The method entails providing an enclosed building having an air conditioning and ventilation unit for supplying cooled air within the building, the unit including a closed loop circuit configured to operate a closed loop refrigeration cycle, including a compressor operable to compress a working fluid of the closed loop circuit. The method further includes engaging an internal combustion engine with the compressor and operating the internal combustion engine to drive the compressor, thereby transferring energy to the refrigeration cycle. The method may also involve engaging an electric motor with the compressor and operating the electric motor to drive the compressor, thereby transferring energy to the refrigeration cycle.