In order to work out statistics of environmental functions of indoor landscape plants in architectures, this study aims to conduct a simulation of how much control plants have over overheating phenomena in atria in summer, involve themselves in air current speed and maintain indoor comfort index, with a numerical analysis model. Thus, nine kinds of representative plants which are usually used for indoor environments were selected, and purified with two irrigations a day for two weeks. And then, their transpiration and photosynthesis amounts were measured three times with a photosynthesis analysis system LICO-6400 at 38℃, which is the highest temperature in the atrium in summer. The data were organized, and another three plants with similar transpiration and photosynthesis amounts were selected. The leaf area which accounts for 10% green zone rate inside the atrium was calculated, and the leaf surplus was removed. And then, the plants were left inside the atrium, and transpiration amount and temperature change were automatically measured for three hours. The maximum temperature change by transpiration of plants was found to be 2.21~2.92℃, which means 0.21~0.23℃ per every 100cm² of leaf area.It is hard to see air current change in atria as convection by plants as the change is at undetectible level with a distribution of 0.08~0.005m/s. However, if air current change is made with fans even in natural air current situations, air current becomes active inside atria as rather cold air moves upward. Therefore, if 0.5 m/s of air current change is made with upward and downward fans in atrium models, the air current speed in the entire atrium converges to the level which gives the most comfort to human.

A Numerical simulation on the thermal flow performance was carried out to propose the incinerator type for the domestic refuses and to investigate the design factor and operating conditions. The SSTI(Standard Stoker Type Incinerator) proposed in this study was modified from the type with central flow. It has the characteristics of good mixing between refuse and hot combustion gas in primary combustion chamber and between unburned gas inflowing and secondary air jet in secondary chamber. By predictive results, the SSTI was no recirculation zone in secondary chamber so that mixing time was increased with high residence time. It has good characteristics of combustion and low emission. Parametric screening studies have been understood with phenomenon of combustion in incinerator.

윤성범과 이기혁(1977)의 수치모형을 이용하여 열발전소의 펌프 비상중단시 냉각수 계통에서 발생하는 서어지거동을 해석하였다. 종래에 무시되었던 기계내부계통으로 부터의 유량, 폐정공기실, 및 공기유출입구, 맨홀, 개수로 및 바다의 영향을 고려하였으며, 이들이 서어지 거동에 미치는 영향을 체계적으로 분석하였다. 특히 공기유출입구의 면적에 따른 서어지 제어효과와 공기실의 공기압 변화를 제시하여 실무에의 적용이 용이하도록 하였다.

열발전소에서 비상 가동중단으로 냉각수 배수계통에 발생하는 비압축성 부정류를 해석하는 수치모형이 개발되었다. 개발된 수치모형은 냉각수 기계내부계통, 폐정, 공기실, 관로, 맨홀, 개수로 및 바다 등에 의한 복잡한 흐름에 대해 전체적인 부정류거동을 동시에 해석할 수 있는 기능을 가진다. 수치해법으로는 leap-forg 유한차분법을 적용하였으며, 간단한 경우에 대한 모형의 검증과 함께, 종래 배수암거 하류단에 적용되덕 고정수위경계조건에 대한 검토가 이루어졌다