Semi-opened type climatic variation in-situ simulation air chamber

Abstract

The invention discloses a semi-opened type climatic variation in-situ simulation air chamber, belonging to an atmospheric environment variation simulation field. The semi-opened type climatic variation in-situ simulation air chamber comprises an air chamber main framework, a probe sensing system, an air change heating system and an automatic control system, wherein the lower part of the air chamber main framework is in the shape of a hexagonal column; the upper part of the air chamber main framework is closed up and is in the shape of a hexagonal frustum; temperature and carbon dioxide probes are configured inside and outside an air chamber; three sets of temperature and carbon dioxide concentration control devices are configured; the purpose of lowering the temperature and reducing a carbon dioxide concentration can be realized by sucking low-temperature low-carbon-dioxide-concentration air outside the air chamber into the air chamber; and the temperature and the carbon dioxide concentration can be increased by inputting heated gas and injecting outer source carbon dioxide. The semi-opened type climatic variation in-situ simulation air chamber provided by the invention is applicable to weather variation in-situ simulation in husbandry or a natural ecosystem, so that the environment difference between the simulation environment and the natural condition can be reduced, so that the simulation environment is closer to the growth condition of plants under weather variation in future. Furthermore, the consumption of energy and carbon dioxide in a simulation operation process can be greatly reduced.

Description

Technical field: [0001] The invention relates to a climate change simulation air chamber, in particular to a device that can simulate climate change under natural environmental conditions and study the influence of climate change on plant growth, and is mainly used for farmland, grassland, forestry (low forest trees) and other plants Plant for simulation studies of climate change impacts on growth conditions. Background technique: [0002] Climate change is one of the most important hot spots in the world today, and it has an important impact on all aspects of human life. All countries in the world are actively responding to climate change with the goal of energy conservation and emission reduction. The Intergovernmental Panel on Climate Change (IPCC) is the most important and authoritative research organization on climate change in the world. Its fourth assessment report pointed out that climate warming is an indisputable fact, and 90% of it may be due to fossil fuels. Gre...

AI Technical Summary

Problems solved by technology

The main advantage of this technique is the active increase of CO in a completely open environment 2 and temperature, its main disadvantage is high hardware cost and CO 2 The consumption of gas and heating energy is very huge. At the same time, the infrared heating device can greatly block the light. Infrared heating will also have a certain impact on crop growth and soil. In addition, there are CO 2 Disadvantages such as uneven release or infrared heating, currently only a few research institutions with strong financial resources in the world can do it; the second is a fully enclosed indoor environment simulation room technology

This technology uses artificial control of light, temperature, water, fertilizer, gas and other conditions required for plant growth in a closed cavity under indoor conditions. Its main advantage is that it is easier to control the growth conditions of plants. , CO 2 The energy consumption for heating and heating is greatly reduced, but the main disadvantage of this method is that it is impossible to simulate a growth environment that is more consistent with plant growth. The growth of plants is very different from that of the field, so it cannot reflect the climate well. The impact of changes on plants, in addition, the energy consumption for lighting simulation is also relatively large; the third is the semi-closed outdoor climate simulation room technology, which generally uses transparent panels to build a semi-closed system outdoors for natural lighting. , external auxiliary temperature control and CO control 2 system, and most of the crops in it are planted in pots. The advantage of this method is that the operation of the system is more economical, and it is relatively consistent with the external environmental conditions. The environment where the plants grow is closer to the actual conditions, but the growth conditions are similar to pure There are still some differences in natural conditions, especially when plants grow in pots, which cannot well represent the growth conditions in the wild, and the semi-closed system has a greater impact on plant growth

Therefore, in general, except that the FACE external auxiliary infrared heating system is better at simulating climate change, the other two methods have a greater impact on the external environment of plant growth, and the simulation of climate change is not accurate enough. However, the high cost of the FACE system makes Its development is very limited

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