TY  - JOUR
TT  - Experimental Assesment of Refrigeration System Characteristics with Scroll Compressor
AU  - Erken, Orhan
AU  - Küçüka, Serhan
PY  - 2013
DA  - June
JF  - Isı Bilimi ve Tekniği Dergisi
PB  - Türk Isı Bilimi ve Tekniği Derneği
WT  - DergiPark
SN  - 1300-3615
SP  - 119
EP  - 124
VL  - 33
IS  - 2
KW  - Su soğutma grubu
KW  - soğutma performansı
KW  - aşırı ısıtma
KW  - aşırı soğutma
N2  - In this study, characteristics of a chiller system are investigated. The experimental setup consist of an air cooled condenser, a liquid type shell-tube evaporator, and a scroll compressor. Compressor speed is changed between 30-60 Hz via PWM type frequency inverter. Mass flow rate of the refrigerant R134a is controlled by an electronic expansion valve (EEV) and a thermostatic expansion valve (TXV) in the system. The cooling capacity of the chiller system is about 3 kW. For determining the performance characteristics of the system eight parameters are considered. These are the EEV opening, superheating, subcooling, evaporation/condensing temperatures, and refrigerant flow rate. It is found that the COP decreased to its half and cooling capacity increased 37% by increasing the frequency from 30 Hz to 60 Hz. According to analysis, superheating changing affects various parameters in the system and also it is important to monitor this parameters
UR  - https://dergipark.org.tr/en/pub/isibted/issue//376130
L1  - https://dergipark.org.tr/en/download/article-file/400730
ER  -