An Analysis of the Development of Modular Building Design Elements to Improve Thermal Performance of a Representative High Rise Residential Estate in the Coastline City of Famagusta, Cyprus

Altan, Haşim; Ozarisoy, Bertug

doi:10.3390/su14074065

Cited by 12 publications

(9 citation statements)

References 112 publications

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“…High outdoor temperature will cause the building occupants to increase the usage of air-conditioning system to achieve indoor thermal comfort, hence increasing the energy consumption. The influence of high outdoor temperature on cooling demand to achieve indoor comfort is also proved by Altan and Ozarisoy (2022), where higher cooling demand will lead to higher energy consumption during summer.…”

Section: Bei Of Each Case Study Buildingmentioning

confidence: 99%

“…However, E Block has more building façade surface that is facing northeast which is directly exposed to sunlight. With regards to the findings of Altan and Ozarisoy (2022), the building that receives the highest exposure to solar radiation will have the highest risk of overheating and hence increased cooling demand.…”

Section: Bei Of Each Case Study Buildingmentioning

confidence: 99%

“…Building orientation is proved to be a major contributor to thermal discomfort. Altan and Ozarisoy (2022) found that southwest-facing buildings received the highest levels of solar radiation in July and August 2020 during summer, which lead to a peak in cooling energy consumption. After implementing passive design strategies such as blinds and overhang shading devices, the cooling demand was decreased by 21.69% and the annual energy consumption was reduced by 28.1% (Altan and Ozarisoy, 2022).…”

Section: Introductionmentioning

confidence: 99%

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Investigation into energy performance of a multi-building complex in a hot and humid climate: efficacy of energy saving measures

Tan,

Mahyuddin,

Kamaruzzaman

et al. 2023

OHI

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PurposeCommercial buildings, which include office buildings, are one of the three major energy-consuming sectors, alongside industrial and transportation sectors. The vast increase in the number of buildings is a positive sign of the rapid development of Malaysia. However, most Malaysian government office buildings tend to consume energy inefficiently due to lack of energy optimization. Most of the previous studies focused on the performance of green buildings in fulfilling the green development guidelines. As such, it is essential to study the energy performance of existing government office buildings that were constructed before most energy-efficient standards were implemented to mitigate energy wastage due to the lack of energy optimization. This study aims to analyse the energy performance of existing non-green Malaysian government office buildings and the factors that influence building energy consumption, as well as to evaluate the efficacy of the existing energy conservation measures.Design/methodology/approachThis study was conducted by a literature review and case study. The chosen buildings are six government office building blocks located in Kuala Lumpur, the capital city of Malaysia. In this study, a literature review has been conducted on the common factors affecting energy consumption in office buildings. The energy consumption data of the buildings were collected to calculate the building energy intensity (BEI). The BEI was compared to the MS1525:2019 and GBI benchmarks to evaluate energy performance. SketchUp software was utilized to illustrate the solar radiation and sun path diagram of the case study buildings. Finally, recommendations were derived for retrofit strategies based on non-design factors and passive design factors.FindingsIn typical government office buildings, the air-conditioning system consumed the most energy at 65.5%, followed by lighting system at 22.6%, and the remaining 11.9% was contributed by office appliances. The energy performance of the case study buildings is considered as satisfactory as the BEI did not exceed the MS1525:2019 benchmark of 200 kWh/m2/year. The E Block recorded the highest BEI of 183.12 kWh/m2/year in 2020 due to its north-east orientation which is exposed to the most solar radiation. Besides, E Block consists of rooms that can accommodate large number of occupants. As such, non-design factors which include higher occupancy rate and higher cooling demand due to high outdoor temperature leads to higher energy consumption. By considering passive design features such as building orientation and building envelope thermal properties, energy consumption can be reduced significantly.Originality/valueThis study provided a comprehensive insight into the energy performance of Malaysian government office buildings, which were constructed before the energy-efficient standards being introduced. By calculating the BEI of six government office buildings, it is found that the energy performance of the case study buildings fulfils the MS1525 benchmark, and that all their BEIs are below 200 kWh/m2/year. Malaysia's hot and humid climate significantly affects a building's cooling load, and it is found the air-conditioning system is the major energy consumer of Malaysian government office buildings. This study discusses the efficacy of the energy-saving measures implemented in the case study buildings to optimize energy consumption. Recommendations were derived based on the non-design factors and passive design factors that affected the energy consumption of the case study building. It is envisioned that this study can provide practical strategies for retrofit interventions to reduce energy consumption in Malaysian office buildings as well as for office buildings that are in a similar climate.

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Section: Bei Of Each Case Study Buildingmentioning

confidence: 99%

Section: Bei Of Each Case Study Buildingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation into energy performance of a multi-building complex in a hot and humid climate: efficacy of energy saving measures

Tan,

Mahyuddin,

Kamaruzzaman

et al. 2023

OHI

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“…Demand forecasting is one of the most complex yet fundamental parts of hospital construction [22]. Although there are many studies on energy optimization in the literature [23][24][25][26][27], there is a lack of information about the maximum power estimation of hospitals.…”

Section: Introductionmentioning

confidence: 99%

Electricity Demand Forecasting of Hospital Buildings in Istanbul

Soyler¹,

Izgi

2022

Sustainability

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Electricity demand forecasting is essential for utilities. For the consumer, predictability of demand is vital for efficient operation, installation, sizing and maintenance planning. Hospitals, which are among the institutions with high-energy consumption, provide uninterrupted service 24 h a day, 7 days a week. Every hospital building is unique, and many do not conform to a typical shape or floor plan. Depending on the services provided, each hospital can differ significantly in terms of energy demand. Therefore, demand forecasting is one of the most complex elements of hospital construction. Although there are many studies on energy optimization related to hospital buildings in the literature, there is a knowledge gap regarding the maximum power estimation of hospitals. In this study, the annual electrical energy use of 23 public hospitals with over 100 beds in Istanbul is measured, and after determining the monthly peak loads, two new forecasting models are generated using regression techniques for maximum demand forecasting. It is determined that the design criteria used in power calculations in hospitals was very high. A positive result was obtained from the linear regression technique, which is one of the basic regression techniques, and it was shown that the maximum power needs of the hospital can be estimated with great confidence by determining a new design factor in the light of the determined values. This study allows designers to set maximum demands and select transformer and generator sizes with a single formula.

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“…The authors focused on the risk of overheating in southern-eastern Europe and on the possible differences in energy performances between the as-designed and as-built. The same authors, in [17] have investigated the indoor environmental conditions in a social housing estate in Cyprus, with both a numerical and experimental approach. The effectiveness of retrofit strategies was evaluated through a dynamic thermal simulation and indoor thermal comfort was verified through on-site monitoring and in-situ measurements.…”

Section: Introductionmentioning

confidence: 99%

Energy, Environmental Impact and Indoor Environmental Quality of Add-Ons in Buildings

et al. 2022

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On a European scale, the existing building stock has poor energy performance and particularly vulnerable structures. Indeed, most of the existing buildings were built before the introduction of energy standards and under structural safety criteria different from those currently required. It is therefore necessary the intervention in existing buildings according to an integrated approach that contemplates both the structural safety and the energy efficiency of buildings. This study, consistently with the objectives of the European research project “Proactive synergy of integrated Efficient Technologies on buildings’ Envelopes (Pro-GET-OnE)”, proposes a retrofit intervention for a student dormitory of the National and Kapodistrian University of Athens. The scope of the evaluation is to understand how an integrated intervention, that implies a structural and energy retrofit, as well as a spatial redistribution, leads to an improvement of the Indoor Environmental Quality (IEQ). In detail, the structural retrofit was performed through exoskeleton that leads to the addition of new living spaces and to a remodeling of the building facades. The energy retrofit regarded all three levers of energy efficiency, and thus the building envelope, the microclimatic control systems, and the systems from renewable sources. The integrated intervention, in addition to a reduction of energy demand, has led to advantages in terms of IEQ. Thermal comfort, both during summer and winter, is improved and the hours of suitable CO2 concentration pass from 34% in the pre-retrofit stage up to 100% in the post retrofit stage.

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An Analysis of the Development of Modular Building Design Elements to Improve Thermal Performance of a Representative High Rise Residential Estate in the Coastline City of Famagusta, Cyprus

Cited by 12 publications

References 112 publications

Investigation into energy performance of a multi-building complex in a hot and humid climate: efficacy of energy saving measures

Investigation into energy performance of a multi-building complex in a hot and humid climate: efficacy of energy saving measures

Electricity Demand Forecasting of Hospital Buildings in Istanbul

Energy, Environmental Impact and Indoor Environmental Quality of Add-Ons in Buildings

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