M Kazemzadeh - Student of M.S Architecture, Facultyl of Architecture and Urban Planning, Shahid Beheshti University, Tehran, Iran
M tahbaz - ۲Department of Architecture, Faculty of Architecture and Urban Planning, Shahid Beheshti UniversityCountry, Tehran, Iran

Solar penetration through the transparent cover can severely useful indoor thermal environment inside an atrium building particularly in cold and dry winters. This paper reports of the application two different atrium building in a clinic center balance to thermal performance on the two levels inside the atriums in Kerman, where winter is cold and dry.A site test was undertaken one day covering clear day in November 2010. Measurement of indoor thermal environmental parameters was conducted on two levels in the atriums and the recorded data represent the internal conditions: with plant and without plant in ground floor, and with color glass and without color glass. This study will investigated about different temperature of atrium levels with and without plant and color glass. This study has shown that on cold and clear winter days, with color glass and plant the average temperature difference between first and second floor, and second floor and external were 2 C and 13 C respectively with in 24 hrs; while with clear glass and without plant the average air temperature difference were 1.5 C and 8 C respectively.

Atrium, Solar radiations, plant effect, Thermal stratification