Effects of evaporator and condenser temperatures on the performance of a chiller system with a variable speed compressor
المؤلفون المشاركون
al-Hassani, Ahmed H.
al-Badri, Ala R.
المصدر
Engineering and Technology Journal
العدد
المجلد 39، العدد 1A (31 يناير/كانون الثاني 2021)، ص ص. 45-55، 11ص.
الناشر
تاريخ النشر
2021-01-31
دولة النشر
العراق
عدد الصفحات
11
التخصصات الرئيسية
الموضوعات
الملخص EN
The operation and performance of heat-pump systems are affected by indoor and outdoor operating conditions.
Power consumption and system efficiency are related to evaporator and condenser working pressures.
Intelligent controllers such as a proportional integral (PI) controller improve the performance of variable speed refrigeration systems (VSRs) with electronic expansion valve (EEV).
Evaporator and condenser pressures affect the system power consumption and efficiency.
In this study, the influence of evaporator and condenser temperatures on the performance of a variable speed refrigeration system with an EEV was experimentally investigated at constant cooling load.
The experimental system comprises of a rotary compressor, shell-and-coil condenser, EEV, and shell-and-coil evaporator for one-ton cooling capacity with refrigerant R410.
Compressor speed and EEV opening are controlled by a PI controller with two control loops and the refrigerant superheat (DS) is maintained at 7°C.
The results show that at constant cooling capacity, the refrigerant flow rate rises with the increase in the compressor speed.
The coefficient of performance (COP) is improved with low compressor speed.
The System COP is increased by 3.3% with increasing evaporator inlet water temperature for 2°C due to the reduction in the compressor speed and compression ratio.
High condenser inlet water temperature promotes the refrigerant subcooling.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
al-Hassani, Ahmed H.& al-Badri, Ala R.. 2021. Effects of evaporator and condenser temperatures on the performance of a chiller system with a variable speed compressor. Engineering and Technology Journal،Vol. 39, no. 1A, pp.45-55.
https://search.emarefa.net/detail/BIM-1281618
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
al-Hassani, Ahmed H.& al-Badri, Ala R.. Effects of evaporator and condenser temperatures on the performance of a chiller system with a variable speed compressor. Engineering and Technology Journal Vol. 39, no. 1A (2021), pp.45-55.
https://search.emarefa.net/detail/BIM-1281618
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
al-Hassani, Ahmed H.& al-Badri, Ala R.. Effects of evaporator and condenser temperatures on the performance of a chiller system with a variable speed compressor. Engineering and Technology Journal. 2021. Vol. 39, no. 1A, pp.45-55.
https://search.emarefa.net/detail/BIM-1281618
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 54-55
رقم السجل
BIM-1281618
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر