Irreversibility Analysis of a Minibus Air-Conditioner for Different Condensation Pressures

İbrahim KARAÇAYLI; Erdoğan ŞİMŞEK

doi:https://doi.org/10.21605/cukurovaummfd.609114

Article Details

Irreversibility Analysis of a Minibus Air-Conditioner for Different Condensation Pressures

Authors:

İbrahim KARAÇAYLI | Erdoğan ŞİMŞEK

Publisher:

Cukurova University

Journal:

Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi 2019 Vol.34 Issue 2, pp.171-180

Document Type:

Article

Publication Date:

6/2019

Document Language:

English

Document ID (Org No.):

2000740779

Frequency:

Quarterly

pISSN:

2757-9255

DOI:

https://doi.org/10.21605/cukurovaummfd.609114

Abstract:

 


In this study, a minibus air conditioning (MAC) set using R134a was tested and evaluated in the Adana High Vocational School, Çukurova University. The condensation pressure was gradually increased from 650 kPa to 770 kPa. The indoor and outdoor temperatures were kept constant at 20 oC and 22 oC, respectively. The cooling capacity of the MAC is 6000 kcal/h at 35 ambient temperature. The MAC consists of four main elements; a compressor, a condenser, an expansion valve and an evaporator. The purpose of this study is to demonstrate how the irreversibility analysis is performed. For this aim, experiments were carried out for different condensation pressures at constant ambient temperature in order to determine the rates of the exergy transfer and the entropy generation within the all components and the MAC system. In addition to this, the rational exergy efficiency of the all components and the whole system were calculated. Increasing condensation pressure caused 8.3% increase in both the rate of entropy generation and the irreversibility rate for the whole system. Besides, the rational exergy efficiency of the whole system was approximately 24%.

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Article Details

Irreversibility Analysis of a Minibus Air-Conditioner for Different Condensation Pressures

Authors: İbrahim KARAÇAYLI | Erdoğan ŞİMŞEK

Publisher: Cukurova University

Journal: Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi 2019 Vol.34 Issue 2, pp.171-180

Document Type: Article

Publication Date: 6/2019

Document Language: English

Document ID (Org No.): 2000740779

Frequency: Quarterly

pISSN: 2757-9255

DOI: https://doi.org/10.21605/cukurovaummfd.609114

Issues

Authors:

İbrahim KARAÇAYLI | Erdoğan ŞİMŞEK

Publisher:

Cukurova University

Journal:

Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi 2019 Vol.34 Issue 2, pp.171-180

Document Type:

Article

Publication Date:

6/2019

Document Language:

English

Document ID (Org No.):

2000740779

Frequency:

Quarterly

pISSN:

2757-9255

DOI:

https://doi.org/10.21605/cukurovaummfd.609114