Air Handling Unit Integration for Ventilation and Temperature Control
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Solution Overview
Problem
There is a need for an air conditioning system that improves heat efficiency and provides a comfortable indoor environment by efficiently cooling and heating rooms, especially in buildings without windows or with small windows, by effectively circulating internal air and introducing external air, while also controlling indoor temperature.
Innovation Solution
The system includes an air handling unit (AHU) that controls the circulation and temperature of indoor and outdoor air, an outdoor unit that supplies refrigerant, and a controller that communicates with the outdoor unit to manage the air conditioning process, along with an interface unit that displays control and monitoring menus based on the configuration of the air handling unit's devices, allowing for flexible installation and efficient management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a cooling and heating system is combined with a ventilation system to improve heat efficiency and indoor environment, then the system can effectively circulate internal air and receive external air, but the device complexity increases due to integration of multiple functions
Solution Approach 1:
The patent combines the ventilation system with the cooling and heating system by integrating an air handling unit into the existing air conditioner structure. The air handling unit includes return air fans, supply air fans, and dampers that work together with the refrigeration system to provide both temperature control and fresh air ventilation functions, thereby improving adaptability while managing device complexity through unified design
2Temperature
If the air conditioner operates in cooling or heating mode by controlling power supplied to the compressor or heat exchanger, then the indoor temperature can be controlled, but the heat efficiency decreases when ventilation is added
Solution Approach 1:
The system dynamically adjusts operational parameters including damper positions, fan speeds, and refrigerant flow rates based on the proportion of return air versus outdoor air. By changing these parameters adaptively, the system maintains effective temperature control while minimizing energy loss associated with ventilation, resolving the contradiction between temperature control and heat efficiency
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 enhances heat efficiency and temperature control by effectively circulating and exchanging air, providing a comfortable indoor environment and improving management efficiency through its modular design and adaptive control features.
Implementation Method 1
the refrigerant is expanded by the heat exchanger of the indoor unit and evaporated, an temperature of surrounding air drops
Implementation Method 2
air that is heated by energy emitted as the high-temperature and high-pressure gaseous refrigerant is liquefied in the heat exchanger of the indoor unit
Data Source
AI summary
An air conditioning system includes an air handling unit (AHU) configured to control outdoor air that is externally supplied, exhaust air that is discharged from indoors to outdoors, and return air that is circulated indoors and supplied again, control the outdoor air or mixed air of the return air and the outdoor air at a set temperature, and supply cool/warm supply air indoors, at least one outdoor unit configured to supply a refrigerant to the AHU, a controller configured to control the AHU through communication with the outdoor unit, and an interface unit configured to operate as an input/output unit of the controller. The interface unit displays setting menus for devices forming the AHU, sets basis data for controlling the devices in response to data received through the setting menus, inputs the set basis data to the controller, and outputs a control menu and a monitoring menu in accordance with functions of the AHU changed according to a configuration of the plurality of devices.