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Solution Overview
Problem
Traditional climatic beam air conditioning systems face challenges in managing cold water to avoid condensation, lack air filtration, and have inaccurate carbon dioxide measurements due to stratification effects, leading to inefficient energy use and air quality issues.
Innovation Solution
The system includes a climatic beam with a divider separating two portions, a fan to control airflow, and sensors to adjust fresh air and primary air mixing, ensuring accurate carbon dioxide monitoring and reduced energy consumption by varying airflow based on occupancy and temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cold water is supplied to the coil to cool the air, then cooling performance is improved, but condensation risk increases
Solution Approach 1:
The climatic beam is divided into a first portion for fresh air intake and a second portion for primary air circulation, separated by a divider. This segmentation allows independent control of airflows and thermal management in each section, enabling cooling performance optimization while managing condensation risk through separate air handling paths.
Solution Approach 2:
Different portions of the system are assigned different functions: the first portion handles fresh air conditioning with potential condensation risk, while the second portion handles recirculated primary air. This local quality differentiation allows targeted thermal management and condensation prevention strategies in specific zones.
2Productivity
If carbon dioxide detector is located at the inlet grill to measure ambient air, then fresh air intake control is improved, but measurement accuracy deteriorates due to stratification effects
Solution Approach 1:
The carbon dioxide detector is extracted from the ambient air inlet location and repositioned within the climatic beam system where it can measure mixed air conditions. This extraction from the problematic stratified ambient air environment improves measurement accuracy by avoiding stratification effects while maintaining the ability to control fresh air intake based on actual indoor air quality.
3Device complexity
If fixed airflow is used for fresh air and primary air, then system simplicity is maintained, but energy efficiency deteriorates when room is unoccupied
Solution Approach 1:
The system transitions from fixed airflow to dynamic, variable airflow control. The fan speed and fresh air damper position are adjusted based on room occupancy detection and temperature requirements. This dynamic adaptation allows the system to reduce energy consumption during unoccupied periods while maintaining comfort during occupied periods, resolving the contradiction between simplicity and energy efficiency.
4Device complexity
If ambient room air is recirculated without filtration, then system complexity is reduced, but air quality deteriorates
Solution Approach 1:
The system merges fresh air intake and primary air recirculation into a single integrated climatic beam structure with a common outlet. This merging allows the introduction of fresh air to improve air quality while maintaining relatively simple system architecture. The fresh air portion provides filtration and quality improvement, while the primary air portion provides thermal conditioning, and both are delivered through the same beam structure.
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 enhances temperature control, reduces energy usage, and improves air quality by accurately monitoring carbon dioxide levels and minimizing stratification effects, allowing for efficient operation and flexible system design.
Implementation Method 1
Thermal energy is transferred between the flow of primary air to heat or cool the primary air
Implementation Method 2
a fan is located at the second portion and is configured to draw a flow of primary air across the coil and into the second portion
Data Source
AI summary
An air conditioning system includes a climatic beam located in a room. The climatic beam includes a first portion and a second portion, and a divider located along a length of the climatic beam to separate the first portion from the second portion. The climatic beam further includes a coil supplied with a flow of fluid. A fresh air duct is connected to the first portion to provide a flow of fresh air into the first portion, and a fan is located at the second portion and is configured to draw a flow of primary air across the coil and into the second portion. A beam exit allows a flow of the fresh air and the primary air into the room.