Analysis of Energy Saving and Performance Characteristics of Library Computer
Room Intelligent High Heat Transfer and Exchanger
Chen juntao
1
,Wu shulei
2
1
Hainan College of Economic and Business
2
Hainan Normal University
Haikou,China
e-mail: chjuntao@qq.com
Lin lan
1,
*, Zhan jinmei
3
3
Qiongtai Teachers College
Haikou,China
e-mail: 58095099@qq.com
Abstract—This article expounds the working principle and the
merits of performance of the library computer room intelligent
high heat transfer heat exchanger, analyses the running effects
of the heat exchanger in place of the air-conditioner of the
library computer room, Analysis showed that the use of the
heat exchanger can reduce the working hours of the original
air conditioner, extend its life, reduce the cost of operation and
maintenance of air-conditioner and the Investment costs of
library. The results of energy consumption analysis showed
that the energy-saving effect of using the heat exchanger in the
library computer room is prominent, and the energy-saving
technologies should be promoted.
Keywords- Library computer room; intelligent control; High
rate of heat exchanging; Heat exchanger; Energy conservation
& Emission reduction
I. INTRODUCTION
The library computer room is an important part of its
network communication system. Its environmental
parameters, just like the temperature, humidity and
cleanliness not only affect the reliability and usability of the
network communication equipment, but also affect the
security
[1].
The department of technology in library should
focus on cooling air conditioners, purifying air and operation
management.
At present, common libraries generally apply one or two
cabinet air conditioners, and some good environment
libraries maybe use the central air conditionings or precision
ones. But the computer room generally has the following
characteristics
[2]
: High and centralized device heat-removal,
and the moisture come from staffs and penetrated outdoor air.
So more than 95% heat-removal is hot and humid, which is
approximate infinite. Handling process of air conditioners
can be approximately regarded as the cooling process
without removal wet, in such conditions the enthalpy
difference is little, and inevitably lead to air conditioning
send too large air volume and the fan are in high energy
consumption. Air conditionings become high energy-
consuming equipment, except for the fan and the compressor
accounted for a large proportion. Equipment in computer
rooms is belong to high-load operation throughout the year,
even in the winter, there may have heat-removal problem
also. Air conditionings run a longer period continuously, in
order to ensure high reliability the whole year, need to
consider spare generally and increase the investment.
According to statistical analysis, air-conditioning electricity
costs about 55 % of the whole cost of the engine room
[3]
.
How to use of energy efficiently and saving is one of the
important problems that should be considered in the design
of the library network room, especially under the situation of
lack energy. Based on the above background, test a set of
alternatives for air-conditioning energy-saving in
communications room, which named is intelligent high heat
transfer and sensible heat exchanger. It’s researched and
developed by Shenzhen successfully.
II. W
ORKING PRINCIPLE OF THE INTELLIGENT HIGH HEAT
TRANSFER AND SENSIBLE HEAT EXCHANGER
The intelligent high heat transfer and sensible heat
exchanger has outstanding advantages as follow: beautiful
appearance, compact structure, less space, easy to install,
plug and play, and the cooling circuit is interlinked through
duct with outdoor. Little maintenance, low operation costs,
and there is no filter, do not have to clean as usually, so
maintenance costs greatly reduced.
According to the different temperature of indoor and
outdoor
[4]
, exchange heat on both sides, thereby reducing the
indoor temperature, the system principle as shown in figure 1.
Heat exchanger totally has four components: electronically
controlled part, exchanger cores, air handling units, structure
of shell, as shown in figure 2.
Figure 1. Principle of heat exchanger system
2014 10th International Conference on Computational Intelligence and Security
978-1-4799-7434-4/14 $31.00 © 2014 IEEE
DOI 10.1109/.174
139
2014 10th International Conference on Computational Intelligence and Security
978-1-4799-7434-4/14 $31.00 © 2014 IEEE
DOI 10.1109/CIS.2014.175
139