Development of small-scale hypobaric plant chambers

Erin G. Wilkerson; Ray A. Bucklin; Philip A. Fowler

Development of small-scale hypobaric plant chambers

Erin G. Wilkerson, Ray A. Bucklin, Philip A. Fowler

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

A system of three small-scale hypobaric plant chambers was designed and built to simulate a Mars greenhouse environment and evaluate effects of this environment on evapotranspiration of radish plants. A glass bell jar was sealed atop aluminum bases designed to house a heater, fans, humidifier, and wiring. A data acquisition and control program was developed to control pressure, air temperature, relative humidity, and carbon dioxide concentration as well as monitor leaf temperature and plant weight. The system was successful as demonstrated by the average standard deviations from the set points during performance tests (set points in parentheses): pressure, 0.2 kPa (12 kPa); CO₂ concentration, 235 ppm (9000 ppm); air temperature, 0.17 °C; (24 °C); and relative humidity, 1.03% (70%).

Original language	English
Pages (from-to)	531-537
Number of pages	7
Journal	Applied Engineering in Agriculture
Volume	23
Issue number	4
State	Published - Jul 2007
Externally published	Yes

Keywords

Controlled environment
Evapotranspiration
Growth chamber
Hypobaric

Cite this

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title = "Development of small-scale hypobaric plant chambers",

abstract = "A system of three small-scale hypobaric plant chambers was designed and built to simulate a Mars greenhouse environment and evaluate effects of this environment on evapotranspiration of radish plants. A glass bell jar was sealed atop aluminum bases designed to house a heater, fans, humidifier, and wiring. A data acquisition and control program was developed to control pressure, air temperature, relative humidity, and carbon dioxide concentration as well as monitor leaf temperature and plant weight. The system was successful as demonstrated by the average standard deviations from the set points during performance tests (set points in parentheses): pressure, 0.2 kPa (12 kPa); CO2 concentration, 235 ppm (9000 ppm); air temperature, 0.17 °C; (24 °C); and relative humidity, 1.03% (70%).",

keywords = "Controlled environment, Evapotranspiration, Growth chamber, Hypobaric",

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AU - Wilkerson, Erin G.

AU - Bucklin, Ray A.

AU - Fowler, Philip A.

PY - 2007/7

Y1 - 2007/7

N2 - A system of three small-scale hypobaric plant chambers was designed and built to simulate a Mars greenhouse environment and evaluate effects of this environment on evapotranspiration of radish plants. A glass bell jar was sealed atop aluminum bases designed to house a heater, fans, humidifier, and wiring. A data acquisition and control program was developed to control pressure, air temperature, relative humidity, and carbon dioxide concentration as well as monitor leaf temperature and plant weight. The system was successful as demonstrated by the average standard deviations from the set points during performance tests (set points in parentheses): pressure, 0.2 kPa (12 kPa); CO2 concentration, 235 ppm (9000 ppm); air temperature, 0.17 °C; (24 °C); and relative humidity, 1.03% (70%).

AB - A system of three small-scale hypobaric plant chambers was designed and built to simulate a Mars greenhouse environment and evaluate effects of this environment on evapotranspiration of radish plants. A glass bell jar was sealed atop aluminum bases designed to house a heater, fans, humidifier, and wiring. A data acquisition and control program was developed to control pressure, air temperature, relative humidity, and carbon dioxide concentration as well as monitor leaf temperature and plant weight. The system was successful as demonstrated by the average standard deviations from the set points during performance tests (set points in parentheses): pressure, 0.2 kPa (12 kPa); CO2 concentration, 235 ppm (9000 ppm); air temperature, 0.17 °C; (24 °C); and relative humidity, 1.03% (70%).

KW - Controlled environment

KW - Evapotranspiration

KW - Growth chamber

KW - Hypobaric

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SN - 0883-8542

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EP - 537

JO - Applied Engineering in Agriculture

JF - Applied Engineering in Agriculture

IS - 4

ER -

Development of small-scale hypobaric plant chambers

Abstract

Keywords

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