Energy, exergy analysis and optimization of insulation thickness on buildings in a low-temperature district heating system

Meryem Terhan

Makale detayları

Energy, exergy analysis and optimization of insulation thickness on buildings in a low-temperature district heating system

Yazarlar:

Meryem Terhan

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Mechanical Engineering

Dergi:

Journal of Thermal Engineering Vol.9 Issue 1, pp.161-178

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001283685

pISSN:

2148-7847

Anahtar kelimeler:

Özet:

 In the study, energy and exergy analysis of the buildings on a campus in Turkey are conducted by using actual operating data and taking measurements in the district heating system as a case study. The energy and exergy demands, losses that stem from all buildings are calculated according to average daily outdoor temperature data. Due to the high heat losses in the buildings, determining the optimal insulation thickness for the exterior wall should be investigated. Therefore, optimal insulation thicknesses, energy savings, fuel consumptions and payback periods of the insulation material on the exterior wall of the building are examined by using Life Cycle Assessment and P1P2 method for natural gas. Optimal insulation thicknesses are calculated for different insulation materials such as XPS, glass wool, rock wool and EPS for the climatic regions HDD8004250C days. According to average exergy losses from the building components per unit area, the average total exergy loss is calculated as 2.3910-2 kWm2.year and 1.4210-3 kWm2 5.92 of this loss stems from the exterior walls, 1.9310-3 kWm2 8.07 from the floors, 7.3710-4 kWm2 3.08 from the roofs, 1.5810-2 kWm2 65.99 from the windows and doors, 4.0410-3 kWm2 16.92 from the ventilation with infiltration. Energy requirement values of the building are found between 2.6825.70 kWhm3 towards from the warmest to the coldest climatic region for the uninsulated wall. In the un-insulated state, fuel consumption varies between 1.93-18.48 m3m2 from the warmest to the coldest region. The optimal insulation thickness values of the buildings exterior wall are calculated as between 2.310.0 cm according to different climatic regions. In-state of exterior wall insulation of 3 cm, fuel consumption decreases by 46.6353.46 compared to different insulation materials and climatic regions compared to the un-insulated state.

 In the study, energy and exergy analysis of the buildings on a campus in Turkey are conducted by using actual operating data and taking measurements in the district heating system as a case study. The energy and exergy demands, losses that stem from all buildings are calculated according to average daily outdoor temperature data. Due to the high heat losses in the buildings, determining the optimal insulation thickness for the exterior wall should be investigated. Therefore, optimal insulation thicknesses, energy savings, fuel consumptions and payback periods of the insulation material on the exterior wall of the building are examined by using Life Cycle Assessment and P1P2 method for natural gas. Optimal insulation thicknesses are calculated for different insulation materials such as XPS, glass wool, rock wool and EPS for the climatic regions HDD8004250C days. According to average exergy losses from the building components per unit area, the average total exergy loss is calculated as 2.3910-2 kWm2.year and 1.4210-3 kWm2 5.92 of this loss stems from the exterior walls, 1.9310-3 kWm2 8.07 from the floors, 7.3710-4 kWm2 3.08 from the roofs, 1.5810-2 kWm2 65.99 from the windows and doors, 4.0410-3 kWm2 16.92 from the ventilation with infiltration. Energy requirement values of the building are found between 2.6825.70 kWhm3 towards from the warmest to the coldest climatic region for the uninsulated wall. In the un-insulated state, fuel consumption varies between 1.93-18.48 m3m2 from the warmest to the coldest region. The optimal insulation thickness values of the buildings exterior wall are calculated as between 2.310.0 cm according to different climatic regions. In-state of exterior wall insulation of 3 cm, fuel consumption decreases by 46.6353.46 compared to different insulation materials and climatic regions compared to the un-insulated state.

 In the study, energy and exergy analysis of the buildings on a campus in Turkey are conducted by using actual operating data and taking measurements in the district heating system as a case study. The energy and exergy demands, losses that stem from all buildings are calculated according to average daily outdoor temperature data. Due to the high heat losses in the buildings, determining the optimal insulation thickness for the exterior wall should be investigated. Therefore, optimal insulation thicknesses, energy savings, fuel consumptions and payback periods of the insulation material on the exterior wall of the building are examined by using Life Cycle Assessment and P1P2 method for natural gas. Optimal insulation thicknesses are calculated for different insulation materials such as XPS, glass wool, rock wool and EPS for the climatic regions HDD8004250C days. According to average exergy losses from the building components per unit area, the average total exergy loss is calculated as 2.3910-2 kWm2.year and 1.4210-3 kWm2 5.92 of this loss stems from the exterior walls, 1.9310-3 kWm2 8.07 from the floors, 7.3710-4 kWm2 3.08 from the roofs, 1.5810-2 kWm2 65.99 from the windows and doors, 4.0410-3 kWm2 16.92 from the ventilation with infiltration. Energy requirement values of the building are found between 2.6825.70 kWhm3 towards from the warmest to the coldest climatic region for the uninsulated wall. In the un-insulated state, fuel consumption varies between 1.93-18.48 m3m2 from the warmest to the coldest region. The optimal insulation thickness values of the buildings exterior wall are calculated as between 2.310.0 cm according to different climatic regions. In-state of exterior wall insulation of 3 cm, fuel consumption decreases by 46.6353.46 compared to different insulation materials and climatic regions compared to the un-insulated state.

 In the study, energy and exergy analysis of the buildings on a campus in Turkey are conducted by using actual operating data and taking measurements in the district heating system as a case study. The energy and exergy demands, losses that stem from all buildings are calculated according to average daily outdoor temperature data. Due to the high heat losses in the buildings, determining the optimal insulation thickness for the exterior wall should be investigated. Therefore, optimal insulation thicknesses, energy savings, fuel consumptions and payback periods of the insulation material on the exterior wall of the building are examined by using Life Cycle Assessment and P1P2 method for natural gas. Optimal insulation thicknesses are calculated for different insulation materials such as XPS, glass wool, rock wool and EPS for the climatic regions HDD8004250C days. According to average exergy losses from the building components per unit area, the average total exergy loss is calculated as 2.3910-2 kWm2.year and 1.4210-3 kWm2 5.92 of this loss stems from the exterior walls, 1.9310-3 kWm2 8.07 from the floors, 7.3710-4 kWm2 3.08 from the roofs, 1.5810-2 kWm2 65.99 from the windows and doors, 4.0410-3 kWm2 16.92 from the ventilation with infiltration. Energy requirement values of the building are found between 2.6825.70 kWhm3 towards from the warmest to the coldest climatic region for the uninsulated wall. In the un-insulated state, fuel consumption varies between 1.93-18.48 m3m2 from the warmest to the coldest region. The optimal insulation thickness values of the buildings exterior wall are calculated as between 2.310.0 cm according to different climatic regions. In-state of exterior wall insulation of 3 cm, fuel consumption decreases by 46.6353.46 compared to different insulation materials and climatic regions compared to the un-insulated state.

Makale detayları

Energy, exergy analysis and optimization of insulation thickness on buildings in a low-temperature district heating system

Yazarlar:

Meryem Terhan

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Mechanical Engineering

Dergi:

Journal of Thermal Engineering Vol.9 Issue 1, pp.161-178

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001283685

pISSN:

2148-7847

Buildings

Low-temperature District Heating System

Energy and Exergy Analysis

Life Cycle Assessment

Heating Degree Day (HDD)

Sayı

Makale detayları

Energy, exergy analysis and optimization of insulation thickness on buildings in a low-temperature district heating system

Yazarlar: Meryem Terhan

Yayıncı: Yildiz Technical University

Ana Başlıklar: Mechanical Engineering

Dergi: Journal of Thermal Engineering Vol.9 Issue 1, pp.161-178

Belge Tipi: Makale

Yayın Tarihi: 1/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001283685

pISSN: 2148-7847

Buildings

Low-temperature District Heating System

Energy and Exergy Analysis

Life Cycle Assessment

Heating Degree Day (HDD)

Sayı

Yazarlar:

Meryem Terhan

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Mechanical Engineering

Dergi:

Journal of Thermal Engineering Vol.9 Issue 1, pp.161-178

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001283685

pISSN:

2148-7847