Furnace Stage Control Based on Heating Cycle Duration
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Solution Overview
Problem
Existing HVAC systems often operate inefficiently due to incompatibilities between components, leading to suboptimal energy consumption and performance in heating operations.
Innovation Solution
A control system adjusts the initial operating stage of a furnace based on monitoring the duration of previous operating cycles, increasing or decreasing the stage as necessary to optimize energy use and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the furnace operates at a fixed initial operating stage, then the system structure is simple, but the energy efficiency is suboptimal
Solution Approach 1:
The furnace operating stage is changed from a fixed static setting to a dynamic adjustable parameter. The control system monitors duration of previous operating cycles and automatically adjusts the initial operating stage accordingly, allowing the system to adapt its energy consumption characteristics based on operational history and conditions.
Solution Approach 2:
The control system implements feedback by monitoring the duration of previous operating cycles and using this information to adjust the initial operating stage of subsequent cycles. This closed-loop control enables the system to learn from past performance and optimize energy efficiency continuously.
2Productivity
If the furnace operates longer cycles, then more heating is provided, but energy consumption increases
Solution Approach 1:
The operating stage is dynamically adjusted based on the duration of previous cycles. When cycles become excessively long, the system increases the initial operating stage for subsequent cycles, enabling faster heating that reduces overall energy consumption while maintaining adequate heating output.
Solution Approach 2:
The system changes the operating parameter (initial operating stage) based on the duration parameter of previous cycles. This parameter adjustment allows the furnace to operate more efficiently by selecting appropriate power levels that balance heating output with energy consumption.
Data Source
AI summary
A heating, ventilation, and/or air conditioning (HVAC) system includes a control system configured to initiate an operating cycle of a furnace of the HVAC system at an initial operating stage in response to a call for heating, monitor a duration of time associated with the operating cycle of the furnace to satisfy the call for heating, adjust the initial operating stage to provide an adjusted initial operating stage of the furnace based on the duration of time, and initiate a subsequent operating cycle of the furnace at the adjusted initial operating stage.