Abstract
The purpose of this study is to evaluate the performance of after-treatment equipment and thermal storage devices for a combustortype CO2 generator. Since greenhouse ventilation is limited to minimize heat loss in the winter, the internal CO2 concentration may be reduced during the day, which limits the growth of horticultural crops. Therefore, CO2 generators are needed in greenhouses during the winter season. To reduce the levels of harmful exhaust gases produced by a CO2 generator, a metal particulate filter (MPF) catalyst has been selected as an after-treatment device, by considering back pressure and exhaust gas temperature. The CO and HC conversion rates of the MPF catalyst were 95% or higher, and the reduction efficiency for particulate matter was 43%. A thermal recovery device was used to recover 13% of the heat energy from the exhaust gas through heat exchangers installed on the exhaust line of the CO2 generator. The temperature of the exhaust gas was kept about 30°C, and 69% of the moisture within the exhaust gases was removed by condensing water, in order to minimize excessive humidity within the greenhouse.
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S. H. Kim, D. C. Gitz, R. C. Sicher, J. T. Baker, D. J. Timlin and V. R. Reddy, Temperature dependence of growth, development, and photosynthesis in maize under elevated CO2, Environ. and Experi. Botany, 61 (2007) 224–36.
O. Ghannoum, N. G. Phillips, J. P. Conroy, R. A. Smith, R. D. Attard, R. Woodfield, B. A. Logan, J. D. Lewis and D. T. Tissue, Exposure to preindustrial, current and future atmospheric CO2 and temperature differentially affects growth and photosynthesis in Eucalyptus, Global Change Biology, 16 (2010) 303–319.
S. H. Tak, S. K. Park, T. S. Kim, J. L. Sohn and Y. D. Lee, Performance analyses of oxy-fuel power generation systems including CO2 capture: comparison of two cycles using different recirculation fluids, J. Mecha. Sci. and Technol., 24 (2010) 1947–1954.
H. C. Rhee, M. W. Cho, S. Y. Lee, G. L. Choi and J. H. Lee, Effect of salt concentration in soil on the growth, yield, photosynthetic rate, and mineral uptake of tomato in protected cultivation, J. Bio-Environ. Control., 16 (2007) 328–32.
S. H. Han, D. H. Kim, G. N. Kim and J. C. Lee, Changes on growth, photosynthesis and pigment contents of the Maackia amurensis and Viburnum opulus var. calvescens under enhanced temperature and CO2 concentration, Korean J. Agricult. and Forest Meteoro., 13 (2011) 115–22.
J. S. Park, J. W. Shin, T. I. Ahn and J. E. Son. Analysis of CO2 and harmful gases caused by using burn-type CO2 generators in greenhouses, J. Bio-Environ. Control., 19–4 (2010) 177–83.
J. E. Son and J. S. Park, NO2 absorption and physiological response of lettuce in a semi-closed plant production system, J. Bio-Environ. Control., 10 (2001) 207–12.
R. D. Singh and Tiwari GN. Energy conservation in the greenhouse system: A steady state analysis, Energy, 35–6 (2010) 2367–2373.
K. Tsuneyoshi and K. Yamamoto, A study on the cell structure and the performances of wall-flow diesel particulate filter, Energy, 48 (2012) 492–499.
E. Zervas, Impact of different configurations of a diesel oxidation catalyst on the CO and HC tail-pipe emissions of a Euro 4 passenger car, Appl. Thermal Engin., 28 (2008) 962–966.
H. N. Kim, Y. H. Sung, B. C. Choi and M. T. Lim, Size distributions and number concentrations of particles from the DOC and CDPF, J. Mecha. Sci. and Technol., 22 (2008) 1793–1799.
B. C. Choi and J. H. Lee, Emission and heat recovery characteristics of heat recovery and combustor-type CO2 generator for greenhouses, J. Korean Soc. Power Sys. Eng., 18–4 (2014) 52–59.
V. P. Sethia and S. K. Sharma, Greenhouse heating and cooling using aquifer water, Energy, 32 (2007) 1414–1421.
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Recommended by Associate Editor Jeong Park
Byungchul Choi finished his Ph.D. at Hokkaido University in Japan on 1990. He worked for Japan Automobile Research Institute in Japan and Institute for Advanced Engineering in Korea. His research areas are development of combustor and of an after-treatment system for vehicles.
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Choi, B., Lee, JH. Emission and heat recovery characteristics of combustor-type CO2 generator with an after-treatment device and regenerative heating device for greenhouses. J Mech Sci Technol 29, 409–417 (2015). https://doi.org/10.1007/s12206-014-1247-3
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DOI: https://doi.org/10.1007/s12206-014-1247-3