Indirect evaporative cooling air conditioner
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Solution Overview
Problem
Existing indirect evaporative cooling air conditioners have complex airflow patterns, high local resistance, and low energy efficiency ratios, which hinder their effectiveness in reducing energy consumption.
Innovation Solution
The design includes multiple heat exchangers arranged side by side within a housing, with partition plates separating indoor and outdoor airflow passages, increasing the windward heat exchange area and reducing airflow resistance, while also incorporating a compression refrigeration cycle system to enhance cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple heat exchangers are arranged side by side with partition plates separating indoor and outdoor airflow passages, then heat exchange efficiency is improved and airflow resistance is reduced, but device complexity increases
Solution Approach 1:
The housing is segmented into multiple independent airflow passages (indoor and outdoor) using partition plates, with each passage dedicated to specific heat exchange functions. This segmentation allows parallel heat exchange operations across multiple passages, improving overall heat exchange efficiency while maintaining organized airflow patterns that reduce resistance.
Solution Approach 2:
The patent transitions from a single heat exchanger arrangement to a multi-dimensional configuration with heat exchangers arranged side by side in parallel. This spatial arrangement in multiple dimensions increases the effective heat exchange area and allows simultaneous heat exchange operations, thereby improving heat exchange efficiency without proportionally increasing device complexity.
2Reliability
If complex airflow pattern is used in existing indirect evaporative cooling air conditioner, then cooling function is achieved, but local resistance increases and energy efficiency ratio decreases
Solution Approach 1:
Different airflow passages are designed with locally optimized characteristics - indoor airflow passages are configured for cool air distribution while outdoor passages are optimized for warm air intake. Each passage has tailored flow paths and cross-sectional areas that match its specific functional requirements, reducing local resistance and improving overall energy efficiency while maintaining reliable cooling function.
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 configuration simplifies airflow patterns, reduces air circulation resistance, and significantly improves the energy efficiency ratio of the air conditioner, achieving higher heat exchange efficiency and energy savings.
Implementation Method 1
heat exchange between a fluid in the indoor circulation passage and a fluid in the outdoor circulation passage is performed by the at least two heat exchangers
Implementation Method 2
use the air after direct evaporative cooling (called secondary air) and water to exchange heat with outdoor air through a heat exchanger
Implementation Method 3
heat exchange between a fluid in the indoor circulation passage and a fluid in the outdoor circulation passage
Implementation Method 4
indirect evaporative cooling is a unique iso-humidity cooling manner of evaporative cooling, the basic principle of which is to use the air after direct evaporative cooling
Implementation Method 5
use the air after direct evaporative cooling (called secondary air) and water to exchange heat
Data Source
AI summary
An indirect evaporative cooling air conditioner is provided, which includes a housing, multiple partition plates located in the housing and at least two heat exchangers arranged side by side. The multiple partition plates and the at least two heat exchangers separate the housing into multiple indoor air flow passages and multiple outdoor air flow passages, each heat exchange has a first heat exchange flow passage and a second heat exchange flow passage crosswise and independently arranged, the indoor air flow passages are in communication with the first heat exchange flow passages to form an indoor circulation passage, the outdoor air flow passages are in communication with the second heat exchange flow passages to form an outdoor circulation passage, and the fluid in the indoor circulation passages exchange heat with the fluid in the outdoor circulation passages through the at least two heat exchangers.