• Journal of Korean Society of Environmental Engineers
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• v.29 no.4
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• pp.466-471
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• 2007

The purpose of study is to obtain basic but important information for the operation of the greenhouse facility located in the suburb of town. Special emphasis is given on the aspect of energy saving method, which can be easilyapplicable in a practical sense. For this end numerical calculation has been made systematically in order to increase the energy efficiency by the evaluation of the temperature distribution in greenhouse. Major parameters considered are primarily the overall shape of greenhouse together with the various conditions of baffle installion inside greenhouse. Further, the performance of heating system is also carefully compared each other for a number of typical arrangements of heating duct. The performance of the computer program developed in this study is evaluated by the observation of the famous fluid trapping phenomenon occurred in staggered baffle condition in the enclosure of greenhouse. Based on the this study, a number of useful conclusions can be drawn, that is, the installation of baffles are quite effective in energy saving method with a minor modification of facility. Also, it is found that the change of the heating duct system can contribute significantly to the uniform temperature distribution in greenhouse. Further other findings obtained by numerical calculation were not only physically consistent and meaningful but also useful for the determination of optimum condition of practical operation of greenhouse.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.4
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• pp.661-668
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• 2023

A large amount of fuel is required for heating the agricultural facility house, and many farmhouses are experiencing the burden of heating costs due to the recent increase in fuel prices. This paper proposes a supply system that supports heating of agricultural facility houses located nearby by utilizing industrial chimney waste heat, and analyzes the application and effect of a heating cost reduction model. The system was designed based on the chimney waste heat system, and the facility house heating cost reduction model was applied and effect analysis was performed based on the proposed model. It was confirmed that the high-temperature waste heat from the chimney can be used to supply heating to facility houses in nearby farms. If heating is supplied to large-scale facility houses near industrial complexes, it is expected to contribute to improve productivity and competitiveness of domestic farms.

• The Bimonthly Magazine for Agrochemicals and Plant Protection
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• v.13 no.1 s.106
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• pp.88-95
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• 1992

하우스재배에서 수량이나 품질을 낮추는 주요한 원인 가운데에는 시설내에서 발생하는 병해나 생리장해가 있다. 우리나라는 아직 선진국과 같이 시설이 대형화되고 중장비화(重裝備化)되지는 않았지만 현재에도 하우스 재배가 전업화되고 단지화됨에 따라 자연 연작하지 않을 수 없게 되어 연작장해가 일어나고 있는 실정이다. 즉 하우스 재배에서는 단위면적당 수량을 높이기 위해서 밀식하는 경향인데 비해 하우스내는 고온이고 노지보다 시비량이나 관수량도 많아 비료성분인 염류(鹽類)가 쌓이고 토양 병원균도 많아지고 토양물리성이 나빠져 토양병해나 생리장해가 많이 발생하고 있다. 이 글에서는 하우스 작물의 연작장해의 원인과 실태조사 결과를 분석해보고 다음호에서는 그 대책에 대해 알아본다.

• The Journal of the Korea institute of electronic communication sciences
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• v.10 no.5
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• pp.623-628
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• 2015

As the current heating control of the greenhouse is located in specifically designed place, there is an inevitable difference in degrees depending on the latitude in it. Even though it is necessary to maintain the proper temperature in the greenhouse producing vegetables and fruit plants, the difference between ups and downs in the facilities results in the increasing energy consumption to both warm and cool down the facilities. The newest heating method, automatic control system of vertical agitation heater, which manipulates the inner air circulation efficiently, is suggested in this paper. The proposed system utilizes both the upper temperature and the lower temperature, and controls the air circulation fan and heating independently, so that maximizes the efficiency of heating with the minimum energy and implements predictable planning of farm products.

• 농업기술회보
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• v.49 no.5
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• pp.32-33
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• 2012

국내 시설원예 재배면적은 1980년대 이후로 급격히 증가했고, 시설채소 재배면적의 99%는 비닐하우스가 차지한다. 이러한 비닐하우스 재배로 채소로 사계절 생산이 가능해졌고, 국민들은 하우스에서 생산된 채소를 어느 때나 구입할 수 있게 되었다. 이러한 시설채소 재배에 피복되는 연질 필름의 소재는 폴리에틸렌(PE) 필름, 에틸렌아세트산비닐(EVA) 필름, 폴리올레핀(PO) 필름 등으로 나누어지고, 이러한 열가성수지에 각종 첨가제를 추가해 보온성, 유적성, 내후성을 향상시킨다. 최근에는 연동하우스와 하우스 피복비용의 증가로 인해 내구성 있는 장기사용 필름에 관한 관심이 높아지고 있다.

• Journal of Bio-Environment Control
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• v.31 no.2
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• pp.79-89
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• 2022

With the wide use of greenhouses, the working hours have been increasing inside the greenhouse for workers. In the closed ventilated greenhouse, the internal environment has less affected to external weather during making a suitable temperature for crop growth. Greenhouse workers are exposed to organic dust including soil dust, pollen, pesticide residues, microorganisms during tillage process, soil grading, fertilizing, and harvesting operations. Therefore, the health status and working environment exposed to workers should be considered inside the greenhouse. It is necessary to secure basic data on particulate matter (PM) concentrations in order to set up dust reduction and health safety plans. To understand the PM concentration of working environment in greenhouse, the PM concnentrations were monitored in the cut-rose and Hallabong greenhouses in terms of PM size, working type, and working period. Compare to no-work (move) period, a significant increase in PM concentration was found during tillage operation in Hallabong greenhouse by 4.94 times on TSP (total suspended particle), 2.71 times on PM-10 (particle size of 10 ㎛ or larger), and 1.53 times on PM-2.5, respectively. During pruning operation in cut-rose greenhouse, TSP concentration was 7.4 times higher and PM-10 concentration was 3.2 times higher than during no-work period. As a result of analysis of PM contribution ratio by particle sizes, it was shown that PM-10 constitute the largest percentage. There was a significant difference in the PM concentration between work and no-work periods, and the concentration of PM during work was significant higher (p < 0.001). It was found that workers were generally exposed to a high level of dust concentration from 2.5 ㎛ to 35.15 ㎛ during tillage operation.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1993.05a
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• pp.9-10
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• 1993

최근 농가에서 시설되는 하우스의 형태와 피복재료가 다양해지고 있으나 작물재배를 통한 검사는 미진한 실정이다. 본 연구는 91년도에 채소와 화훼 공동으로 농가보급형 하우스 모델을 설계하고 시설된 하우스에서 PET와 EVA간의 차이와 하우스형태간의 차가 절화로 이용되는 금어초와 스토크의 생육과 품질에 미치는 영향을 구명할 목적으로 수행하였다. (중략)

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 2002.04a
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• pp.110-114
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• 2002

단동형 비닐하우스는 연동형 비닐하우스에 비해 생력화 및 자동화가 미흡한 재배시설이다. 그러나 전국 시설면적 52,189 ha 중 90%이상이 단동형 비닐하우스로서 대부분 초기투자 부담이 적고 파이프를 이용하여 손쉽게 설치할 수 있는 단동형 비닐하우스를 선호하고 있는 실정이다. 단동형 비닐하우스는 각 지역의 특성에 적합한 고유형 시설로 발전하여 왔기 때문에 폭이 5-6m, 높이가 2-3.5m 정도인 대형 터널형태와 폭이 l0m 이상인 광폭형태 등 규격이 다양하게 설치되어있다. (중략)

• Journal of Convergence for Information Technology
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• v.8 no.1
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• pp.227-233
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• 2018

The purpose of this study was to develop a warm cover for greenhouse with excellent thermal insulation and to propose ways of commercialization of the product. Feathers were used as filling materials because they formed the air layer to enhance insulation. Instead of downs for clothing or other textile products, we used disposed feathers. The developed product covers the outside of the greenhouse to keep the crops warm. It has multiple layers including feathers as filling materials, padding, inside fabric, heat insulation materials and outer fabric. It has proven to improve the insulation ratio. We developed other kinds of warm covers that are applicable to the inside of the greenhouse or the small houses in the greenhouse. Also, R&D system of educational industrial complex enables us to commercialize the products and building marketing strategies for them. This technology contributes to the expansion of energy-saving facilities for farmers, and it can serve the development and spread of various products utilizing feather.

• 주택과사람들
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• s.207
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• pp.32-35
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• 2007

답답한 아파트 생활을 벗어나려는 수요자들이 늘면서 타운하우스가 아파트에 이은 차세대 주거 시설로 급부상하고 있다. 이에 따라 타운하우스 공급도 점차 늘고 있다. 분양을 앞둔 타운하우스를 돌아보며, 타운하우스만의 매력을 찾아보았다.