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http://dx.doi.org/10.12791/KSBEC.2014.23.3.174

Comparative Analysis of Weather Data for Heating and Cooling Load Calculation in Greenhouse Environmental Design  

Nam, Sang-Woon (Department of Agricultural and Rural Engineering, Chungnam National University)
Shin, Hyun-Ho (Department of Agricultural and Rural Engineering, Chungnam National University)
Seo, Dong-Uk (Institute of Agricultural Science, Chungnam National University)
Publication Information
Journal of Bio-Environment Control / v.23, no.3, 2014 , pp. 174-180 More about this Journal
Abstract
Standard weather data available to greenhouse environmental design are limited in most regions of the country. So, instead of using standard weather data, in order to find the method to build design weather data for greenhouse heating and cooling, design outdoor weather conditions were analyzed and compared by TAC method and frequency analysis using climatological normal and thirty years from 1981 to 2010 hourly weather data provided by KMA and standard weather data provided by KSES. Average TAC values of outdoor temperature, relative humidity and insolation using thirty years hourly weather data showed a good agreement with them using standard weather data. Therefore, in regions which are not available standard weather data, we suggest that design outdoor weather conditions should be analyzed using thirty years hourly weather data. Average of TAC values derived from every year hourly weather data during the whole period can be established as environmental design standards, and also minimum and maximum of them can be used as reference data.
Keywords
design outdoor temperature; insolation; climatological normal; standard weather data; TAC;
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