Greenhouse CO2 Simulation for Absorption and Supply Use Rate

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Solution Overview

Problem

Existing techniques for reducing carbon dioxide emissions into the air by using plants lack a quantitative understanding of carbon dioxide absorption rates and construction costs are high due to the need for large cultivation areas, making it difficult to estimate the effectiveness and economic benefits of greenhouse construction for global warming prevention.

Innovation Solution

A carbon dioxide dynamics simulation apparatus that calculates the absorption amount and use rate of carbon dioxide in a greenhouse using global solar irradiance, light transmittance, and indoor carbon dioxide concentration, along with a computer program to simulate greenhouse effect gas emissions and reductions, allowing for economic analysis of different carbon dioxide supply sources.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the cultivation area in the greenhouse is increased to maximize carbon dioxide utilization, then the carbon dioxide absorption capacity is improved, but the construction cost of the greenhouse increases

Engineering Contradiction:

Improvecarbon dioxide absorption capacityVSAvoidconstruction cost

Core Design Contradiction:

Quantity of substanceVSEase of manufacture

Solution Approach 1:

The invention changes the parameter of carbon dioxide concentration within the greenhouse by supplying exhaust gas from power stations, rather than simply increasing the cultivation area. This allows maximizing carbon dioxide utilization through concentration management and source utilization, achieving better absorption efficiency without proportionally increasing construction costs.

Inventive Principle:

Principle #35Parameter changes

2Object-affected harmful factors

If the greenhouse cultivation area is expanded to absorb more carbon dioxide, then the global warming prevention effect is improved, but the economic benefit decreases due to higher construction costs

Engineering Contradiction:

Improvegreenhouse effect gas emission reductionVSAvoidconstruction cost

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The invention introduces exhaust gas from power stations as an intermediary carbon dioxide source. Instead of relying solely on natural atmospheric carbon dioxide or requiring large cultivation areas, the system uses this intermediary source to supply carbon dioxide to the greenhouse, achieving effective global warming prevention with more economical construction scales.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention creates a simulated carbon dioxide supply system using exhaust gas from power stations as a proxy for natural carbon dioxide sources. This copying approach allows the greenhouse to function effectively without requiring proportionally large cultivation areas, as the exhaust gas serves as a concentrated carbon dioxide source that can be managed more economically.

Inventive Principle:

Principle #26Copying

3Productivity

If carbon dioxide is supplied to plants to promote photosynthesis, then the plant growth is improved, but the quantitative understanding of carbon dioxide absorption rates is lacking

Engineering Contradiction:

Improveplant growth rateVSAvoidcarbon dioxide absorption rate measurement

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The invention implements a feedback mechanism by measuring indoor carbon dioxide concentration and using this information to control and optimize carbon dioxide supply. The system monitors the actual absorption rates and adjusts the supply accordingly, enabling quantitative understanding and precise control of carbon dioxide utilization for plant growth.

Inventive Principle:

Principle #23Feedback

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

Enables quantitative assessment of carbon dioxide absorption and reduction in greenhouse gas emissions, promoting the effective use of exhaust gases from facilities and optimizing greenhouse construction for maximum carbon dioxide utilization.

Implementation Method 1

the concept of consuming carbon dioxide by cultivation of the plants

Methodology Applied

Scientific EffectPhotosynthesis: Photosynthesis

Data Source

PatentEP4675540A1Carbon dioxide dynamics simulation device, computer program, and recording medium

Publication Date: 2026.01.07 SEIWA CO LTD

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AI summary

Dynamics of carbon dioxide in a greenhouse are grasped. There are included: an absorption amount calculation unit 11 which finds an amount of net photosynthesis of a plant cultivated in the greenhouse as an absorption amount of carbon dioxide based on the plant; and a use rate calculation unit 12 which finds a rate of the absorption amount to a supply amount of carbon dioxide supplied into the greenhouse from a carbon dioxide supply source as a use rate of the carbon dioxide supplied to the greenhouse. The absorption amount and the use rate of carbon dioxide supplied to the greenhouse can be found, which makes it possible to clearly grasp the dynamics of carbon dioxide.