Equipment Enclosure Multi-Mode Temperature Control for Power Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing equipment enclosures face challenges in maintaining temperature control within a desired range due to inadequate solutions that either consume excessive power or provide insufficient control, such as simple fan systems or expensive and power-hungry air conditioning units.
Innovation Solution
A modular temperature control system for equipment enclosures that includes air conditioning, heating, and free-air-cooling modes, utilizing a self-contained unit with controllable dampers, air movers, and a variable speed compressor to manage airflow and temperature, reducing power consumption while maintaining effective temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If simple fan systems are used for temperature control, then power consumption is low and cost is reduced, but temperature control effectiveness is inadequate
Solution Approach 1:
The system employs a variable speed compressor that can dynamically adjust its operation based on cooling demands, allowing the AC unit to operate at optimal speeds rather than running continuously at full capacity. This dynamic control enables effective temperature management while minimizing power consumption during partial load conditions
Solution Approach 2:
The temperature control system integrates multiple functions into a single unit: cooling mode for hot conditions, heating mode for cold conditions, and fan-only mode for mild conditions. This multi-functional design eliminates the need for separate devices and allows the system to provide appropriate temperature control effectiveness across a wide range of environmental conditions while maintaining reasonable power consumption
2Reliability
If air conditioning and heating units are used for temperature control, then temperature control effectiveness is superior, but power consumption is high and cost increases
Solution Approach 1:
The variable speed compressor dynamically adjusts its operating speed based on the cooling load requirements. During mild cooling demands, the compressor operates at reduced speeds, significantly lowering power consumption while maintaining adequate temperature control. During peak cooling demands, it operates at full capacity to ensure effective temperature management
Solution Approach 2:
The system uses periodic cycling of the compressor and fan operations rather than continuous full-power operation. The controller monitors temperature conditions and activates cooling components only when needed, allowing the system to maintain effective temperature control while minimizing overall power consumption through intermittent operation
3Reliability
If air conditioning units are used for temperature control, then temperature control effectiveness is superior, but device complexity and installation difficulty increase
Solution Approach 1:
The system combines the air conditioning unit, air handler assembly, and control components into a single integrated temperature control unit. This merged design simplifies installation by reducing the number of separate components and connections required, while maintaining the effective temperature control capabilities of a full AC system
Solution Approach 2:
The temperature control unit is designed as a modular system with separable components including a removable AC unit and an air handler assembly. This segmentation allows for easier maintenance, repair, and installation while preserving the full functionality and temperature control effectiveness of the integrated system
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 system provides superior temperature control with reduced power consumption, supporting multiple operational modes and allowing for easy maintenance and replacement, enhancing the efficiency and reliability of temperature management within equipment enclosures.
Implementation Method 1
an air conditioning evaporator in the interior air return pathway
Implementation Method 2
an air conditioning condenser in the air conditioning warm air vent pathway
Implementation Method 3
a variable speed air conditioning compressor operably connected to pump a coolant through a coolant loop that includes the air conditioning condenser and the air conditioning evaporator
Implementation Method 4
an air heater in the interior air return pathway
Data Source
AI summary
An equipment enclosure with temperature control components, an equipment enclosure temperature control unit, an equipment enclosure temperature control method, and various modular temperature control subassemblies are respectively disclosed for controlling the temperature of equipment in an equipment chamber. The temperature control components and unit may be implemented with a modular design wherein an air-conditioning unit is selectively mountable on an air handler assembly. The temperature control components and unit may support air-conditioning, free-air-cooling, free-air-cooling-with-return, and heating modes of operation. An emergency-free-air-cooling mode of operation may also be supported.