Ứng dụng công nghệ làm lạnh bay hơi sử dụng chất hút ẩm lỏng trong điều hòa không khí

NGHIEN CCfU - TRAD DOI

LTNG DUNG CONG NGHE LAM LANH BAY HQI Sii DUNG

CHA T HOT A M L6N G TRONG DI^U HO A KHON G KHf

THE APPLICATION OF EVAPORATIVE COOLING TECHNOLOGY USING

LIQLdD DESICCANTS IN AIR CONDITIONING

Nguyen Th^ Bao

Vien Phat triln Nang luong BSn viing ISED

TOM TAT

Bdi bdo trinh bdy ket qud so sdnh giiia so lieu thi nghiem vd chucmg trinh mo phong he thong

Idtn lanh bay hai 5W- diuig chdt hut dm long. Sau do chuong trinh mo phong duac su dung dephdn

tich kinh te-ky thuat vd ddnh gid khd ndng img dung cong nghe ldm lgnh bay hai sit dung chdt hut

dm long trong cdc he thong diiu hoa khong khi trong diiu Uen Viet Nam. Ket qud cho thay, khd

ndng img dmg cong nghe nay rdt hieu qud khi sit di^ng cho dieu hda khong khi trong cdc khong

gian lan, tdi nhiet dn cao nhu hoi truong, sieu thi, sdn bay, nhd hdng...

Til khoa: Ldm lgnh bay htn, chdt hut dm long, dieu hoa khong khi.

ABSTRACT

The paper presents the comparisons between the results of an experimental study and those

of a simulation program for an evaporative cooling system using liquid desiccants. Then the

simulation program is used to analyze the feasibility of the evaporative cooling technology using

liquid desiccants for air conditioning in Vietnam conditions. The study shows positive results for

this application, especially in cases of air-conditioned open spaces with high latent heat loads such

as supermarkets, halls, airports, restaurants, etc.

Keywords: Evaporative cooling, liquid desiccants, air conditioning.

1. D^T VAN DE te, tuy nllien cac he thong nay deu sii dung

ngu6n nang lugng cao cap la dien.

Theo cac thong ke thi cong suit dien tieu

cho he thdng diSu hoa trong cac cong trinh nhu Cac he th6ng diSu hoa noi tren dgu phii

cao 6c van phong, khach san chi&n tu 45-55% lam lanh ca nhiet hien lan nhiet in, ma lugng

t6ng lugng dien tieu thii [1]. Mac du hien nay nhiet in thucmg chiSm tiit 20%-60% t6ng nang

CO rit nhiju he thong diSu hoa khong khi dugc suit lanh tuy loai cong trinh van phong, nha

cai tito nham tiSt kiem nang lugng nhu he hang, sieu thi, dilu kien thai tiit ben ngoai. Vi

thing dilu hoa trung tam co luu lupng nuoc, v$y, he thing dilu hoa thong thucmg phai tin

luu lugng gio thay doi theo phu tai,...tren co so lugng dien dl khu di lugng nhiet in rit dang

hieu chmh nang suit lanh sat voi phu tai thuc kl. Dl khac phuc vin dl tren, mgt trong sl'^

ISSN 0866 - 7056

TAP CHl CO KHI VIET NAM, S6 1+2 nam 2017