Floating Greenhouse Heat Exchangers for Low-Energy Climate Control

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Solution Overview

Problem

Conventional agricultural systems are energy and resource intensive, and there is a need for agricultural systems that can provide favorable growing conditions independent of ambient environmental conditions to minimize food transportation and reduce global CO2 emissions.

Innovation Solution

A greenhouse system that floats on water and utilizes a primary and secondary heat exchanger at different depths to maintain psychrometric conditions and produce water for irrigation, using solar power for fan operation and pump control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional agricultural systems are used to provide favorable growing conditions, then food production can be maintained independent of ambient environmental conditions, but energy consumption and resource intensity increase significantly

Engineering Contradiction:
Improvefood supply reliabilityVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent merges the greenhouse structure with a floating platform that utilizes body water as a thermal reservoir. The heat exchangers connect the air conditioning system directly to the body water, combining cooling, heating, and humidity control functions into a single integrated system that leverages the thermal mass of the water to reduce energy consumption.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system uses the body water's thermal properties to self-regulate temperature and humidity. The water naturally absorbs excess heat during the day and releases it during cooler periods, providing passive thermal management that reduces the energy required for active climate control.

Inventive Principle:
Principle #25Self-service

2Reliability

If conventional agricultural systems are used to minimize food transportation, then food supply can be secured in regional areas, but resource intensity and environmental impact increase

Engineering Contradiction:
Improvefood supply securityVSAvoidenvironmental impact
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent converts the typically harmful effect of hot ambient air into a beneficial cooling resource. By using heat exchangers that can operate in reverse, the system absorbs heat from the greenhouse air and transfers it to the body water, effectively using the ambient temperature difference to drive the cooling process and reduce energy consumption.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Reliability

If psychrometric conditions are maintained using traditional air conditioning systems, then optimal growing conditions can be achieved, but energy consumption increases

Engineering Contradiction:
Improvegrowing condition stabilityVSAvoidair conditioning energy
Core Design Contradiction:
ReliabilityVSUse of energy by stationary object

Solution Approach 1:

The system creates thermal equipotentiality between the greenhouse air and body water through the heat exchanger network. By maintaining temperature and humidity at balanced levels that match the thermal capacity of the body water, the system minimizes the energy required for active climate control while保持稳定 growing conditions.

Inventive Principle:
Principle #12Equipotentiality

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 efficiently maintains optimal growing conditions and reduces energy consumption by utilizing solar power for air conditioning and irrigation, minimizing resource intensity and CO2 emissions.

Implementation Method 1

a first heat exchanger at a first depth below water level; and a second heat exchanger at a second depth below water level

Methodology Applied
Scientific EffectHeat exchange: Heat Exchanger

Implementation Method 2

The system efficiently maintains optimal growing conditions and reduces energy consumption by utilizing solar power for air conditioning and irrigation

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 3

a solar panel configured to provide electricity to the greenhouse system

Methodology Applied
Scientific EffectSolar energy conversion: Photovoltaic Effect

Implementation Method 4

a first fan of the plurality of fans is configured to pass air through the first heat exchanger

Methodology Applied
Scientific EffectForced convection: Forced Convection

Data Source

PatentUS12490687B2Greenhouse system
Publication Date: 2025.12.09 QATAR FOUND FOR EDUCATION SCI & COMMUNITY DEV
  • US12490687B2 patent drawing
  • US12490687B2 patent drawing
  • US12490687B2 patent drawing

AI summary

A greenhouse system includes an enclosed platform for growing a plant, wherein the enclosed platform is configured to float at water level; a first heat exchanger at a first depth below water level; and a second heat exchanger at a second depth below water level.