Advanced Exergy Assessment of an Air Source Heat Pump Unit

Ayşegül Güngör Çelik

Article Details

Advanced Exergy Assessment of an Air Source Heat Pump Unit

Authors:

Ayşegül Güngör Çelik

Publisher:

Bitlis Eren University

Main Topics:

Engineering

Journal:

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 1, pp.15-22

Document Type:

Article

Publication Date:

3/2024

Document Language:

English

Document ID (Org No.):

2001313610

pISSN:

2147-3129

Keywords:

Abstract:

 Conventional exergy-based analysis methods are used for evaluating the performance of the energy conversation systems. Conventional exergy-based analyses identify the sources, amounts, and reasons of irreversibilities exergy destructions, costs and environmental effects, and provide a general direction for improvement. However, interactions between system components endogenousexogenous and technical limitations avoidableunavoidable cannot be identified with any conventional analysis. Hence, the real potential for improvement and optimization strategies can be misguided. Advanced exergy based analysis seeks to overcome this limitation. An air source heat pump unit was assessed applying conventional and advanced exergy analysis approaches respectively. Avoidableunavoidable and endogenousexogenous exergy destructions, modified exergy efficiencies and modified exergy losses ratios were calculated for every single component of the system. The results showed that while the evaporator and condenser efficiencies could be upgraded via constructional enhancements to the overall system and other system components, internal operating conditions were mainly responsible of the inefficiencies regarding with the compressor. The analysis demonstrated that while it was possible to improve evaporator and condenser efficiency by making constructive enhancements to whole system design, the efficiency of the compressor was mainly determined by the internal conditions in which the compressor operated.

 Conventional exergy-based analysis methods are used for evaluating the performance of the energy conversation systems. Conventional exergy-based analyses identify the sources, amounts, and reasons of irreversibilities exergy destructions, costs and environmental effects, and provide a general direction for improvement. However, interactions between system components endogenousexogenous and technical limitations avoidableunavoidable cannot be identified with any conventional analysis. Hence, the real potential for improvement and optimization strategies can be misguided. Advanced exergy based analysis seeks to overcome this limitation. An air source heat pump unit was assessed applying conventional and advanced exergy analysis approaches respectively. Avoidableunavoidable and endogenousexogenous exergy destructions, modified exergy efficiencies and modified exergy losses ratios were calculated for every single component of the system. The results showed that while the evaporator and condenser efficiencies could be upgraded via constructional enhancements to the overall system and other system components, internal operating conditions were mainly responsible of the inefficiencies regarding with the compressor. The analysis demonstrated that while it was possible to improve evaporator and condenser efficiency by making constructive enhancements to whole system design, the efficiency of the compressor was mainly determined by the internal conditions in which the compressor operated.

 Conventional exergy-based analysis methods are used for evaluating the performance of the energy conversation systems. Conventional exergy-based analyses identify the sources, amounts, and reasons of irreversibilities exergy destructions, costs and environmental effects, and provide a general direction for improvement. However, interactions between system components endogenousexogenous and technical limitations avoidableunavoidable cannot be identified with any conventional analysis. Hence, the real potential for improvement and optimization strategies can be misguided. Advanced exergy based analysis seeks to overcome this limitation. An air source heat pump unit was assessed applying conventional and advanced exergy analysis approaches respectively. Avoidableunavoidable and endogenousexogenous exergy destructions, modified exergy efficiencies and modified exergy losses ratios were calculated for every single component of the system. The results showed that while the evaporator and condenser efficiencies could be upgraded via constructional enhancements to the overall system and other system components, internal operating conditions were mainly responsible of the inefficiencies regarding with the compressor. The analysis demonstrated that while it was possible to improve evaporator and condenser efficiency by making constructive enhancements to whole system design, the efficiency of the compressor was mainly determined by the internal conditions in which the compressor operated.

 Conventional exergy-based analysis methods are used for evaluating the performance of the energy conversation systems. Conventional exergy-based analyses identify the sources, amounts, and reasons of irreversibilities exergy destructions, costs and environmental effects, and provide a general direction for improvement. However, interactions between system components endogenousexogenous and technical limitations avoidableunavoidable cannot be identified with any conventional analysis. Hence, the real potential for improvement and optimization strategies can be misguided. Advanced exergy based analysis seeks to overcome this limitation. An air source heat pump unit was assessed applying conventional and advanced exergy analysis approaches respectively. Avoidableunavoidable and endogenousexogenous exergy destructions, modified exergy efficiencies and modified exergy losses ratios were calculated for every single component of the system. The results showed that while the evaporator and condenser efficiencies could be upgraded via constructional enhancements to the overall system and other system components, internal operating conditions were mainly responsible of the inefficiencies regarding with the compressor. The analysis demonstrated that while it was possible to improve evaporator and condenser efficiency by making constructive enhancements to whole system design, the efficiency of the compressor was mainly determined by the internal conditions in which the compressor operated.

Article Details

Advanced Exergy Assessment of an Air Source Heat Pump Unit

Authors:

Ayşegül Güngör Çelik

Publisher:

Bitlis Eren University

Main Topics:

Engineering

Journal:

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 1, pp.15-22

Document Type:

Article

Publication Date:

3/2024

Document Language:

English

Document ID (Org No.):

2001313610

pISSN:

2147-3129

Advance exergy

Heat pump

Exergy.

Issues

Article Details

Advanced Exergy Assessment of an Air Source Heat Pump Unit

Authors: Ayşegül Güngör Çelik

Publisher: Bitlis Eren University

Main Topics: Engineering

Journal: Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 1, pp.15-22

Document Type: Article

Publication Date: 3/2024

Document Language: English

Document ID (Org No.): 2001313610

pISSN: 2147-3129

Advance exergy

Heat pump

Exergy.

Issues

Authors:

Ayşegül Güngör Çelik

Publisher:

Bitlis Eren University

Main Topics:

Engineering

Journal:

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi Vol.13 Issue 1, pp.15-22

Document Type:

Article

Publication Date:

3/2024

Document Language:

English

Document ID (Org No.):

2001313610

pISSN:

2147-3129