Xác định tải trọng trong thiết kế cơ khí hệ thống năng lượng mặt trời tự xoay

NGHIEN CUU-TRAGDP I

XfiC DINH Tfll TRONQ TRONG THIET KE CO KHI

HE THONG NfiNG LtfOfNG M^T TRO I TCT XOfiY

Nguyen Van D^\ Hoang Tiln Dat', L^ Duy Hdi^ Nguyin Hodng GiangS Van Cdng Bich'

'TrUdng Dai hpc Ky thuat Cdng nghiep, Dai hpc Thai Nguyen

^Trudng Cao ding Kinh te Ky thuat, Dai hgc Thai Nguyen, 'TrUdng Cao dang Cdng nghi?p Hue

T 6 M TAT

Bdi bdo ndy trinh bdy cdch xdc dinh tdi trgng cho bdi todn thiet keket cau cd khi cua he thong

ddn ndng lUdng mat trdi tU xoay theo hUdng tia sdng. Mo men cdn thiet dexoay ddn dUdc xdc dinh de

thdng sdc } qudn tinh, mo men ma sdt vd mo men cdn cua gid. Md hinh tinh todn dUdc xdy dUng nham

tinh todn cong suat cdn thiet dexoay ddn tiiy thugc cong suat phdt dien yiu cau. Mo hinh co thesddun^

de tinh todn thiet kecdc he thong ndng lUdng mat trdi tU xoay khdc nhU bi'p ndu dn ndng lUdng mat trdi,

dgng cd ndng lUdng mat trdi... cdn xoay theo hUdng tia sdng.

ABSTRACT

This paper presents a method to determine loads for mechanical design of solar trackers. Moment

needed to operate the system following the sun is calculated from inertial, frictional moments and wind

load acting on the moving parts. A calculation model was built to determine the power needed to operate

the moving parts based on required output powers. The model can be used to design mechanical structures

of solar systems such as solar cells, solar cookers and solar dish engines tracking the sun path.

TU khda: Ndng lUdng tdi tao, dgng lUc hgc, tdi trgng, truyen ddn cd khi.

E 9 TAP CHi CO KHi VIET NAM • Sd 4 (Thdng 4 nam 2012)