Energy-Use and Indoor Thermal Performance in Junior High School Building after Air-Conditioning Installation with the Private Finance Initiative

Sekartaji, Dian; Ryu, Yuji; Novianto, Didit; Eto, Kazuma; Gao, Weijun

doi:10.3390/buildings13020455

Cited by 3 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…If the energy source is not renewable, it contributes to the urban heat island effect and ambient heat exposure. [12,13] Low-e glass Low-e glass are good innovations to implement in tropical countries. Basically, they work by preventing the accumulation of heat in the building by reflecting sunlight to the outside so that the HVAC system is not overworked and thus reduces carbon emissions.…”

Section: Analysis 221 Ikn Current Planmentioning

confidence: 99%

Decarbonizing Indonesia’s New Capital City: Retrofitting The Design of Ministries Complex in IKN With Closed-loop System of Carbon Capture and Microalgae Secondary Skin

Putri,

Anandyasputri,

Bhanuwati

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

The construction of the new capital IKN has the challenge of achieving carbon neutrality. With the IKN area currently inhabited by around 144,000 people, it is estimated that the carbon produced reached 57,152 kg, while with a target population of 1.6 million people in 2024, the carbon produced will increase 11 times. Plans of IKN to reduce the carbon produced are diverse, ranging from reforestation, providing renewable energy to saving energy use, the efforts in architecture are minimal, including solar panels, vertical gardens and green spaces in buildings. Low-e glass material will be used massively. This raises the need for new innovations. By using existing design analysis research methods, secondary data collection methods through literature review and design methods, the authors create a design transformation scheme that take advantage of the potential that the original design and site of IKN have, namely the microalgae secondary skin closed-loop system which is an integration of two main technologies; open air carbon capturing, and photobioreactor with microalgae cultivation on the facade of buildings whose role is to process carbon dioxide, produce energy and by-products of oxygen, biomass and microalgae. Oxygen is released into the air, biomass is processed into renewable energy, while microalgae is harvested for food, medicine and cosmetics. Method of testing is conducted by using empirical data and data assumptions calculated through corresponding variables and comparison study. The study finds that by implementation, carbon in buildings will be reduced to almost three times the previous one. The low-e glass technology passively reduces carbon emissions by 1,999.3 CO2, while the innovation reduces carbon emissions actively and passively by 5,999.3 CO2. The innovation goes beyond the principle of carbon neutral and will assist IKN in realizing new potential advances for sustainability.

show abstract

Section: Analysis 221 Ikn Current Planmentioning

confidence: 99%

Decarbonizing Indonesia’s New Capital City: Retrofitting The Design of Ministries Complex in IKN With Closed-loop System of Carbon Capture and Microalgae Secondary Skin

Putri,

Anandyasputri,

Bhanuwati

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…The classroom temperature is a crucial factor in the learning process, and prioritizing their improvement should be paramount [9]. Thus, AC use in school buildings has increased significantly in the last decades [10]. Educational buildings are around 17% of non-residential buildings [11]; they are among the fastest-growing category, significant according to the quantity of users, large building area, and high energy demand [12].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, this paper aims to analyze a case study in an educational building in Barranquilla, Colombia. The research assesses the energy performance in the life cycle of four feasible AC technologies that, according to the characteristics of the building, can replace the one currently in use, and evaluates their life cycle feasibility through an energy simulation by Energy Plus (10) and DesignBuilder (V7) software.…”

Section: Introductionmentioning

confidence: 99%

Energy Performance of a University Building for Different Air Conditioning (AC) Technologies: A Case Study

Balbis-Morejón,

Cabello-Eras,

Rey-Martínez

et al. 2024

Buildings

View full text Add to dashboard Cite

The study uses four AC technologies to assess the energy performance—this is a case study of an educational building in Barranquilla, Colombia. The building currently has split AC technology high-energy consumers. Therefore, it was necessary to assess a replacement with more efficient technology. Because of the non-seasonal climate in the building location, one month of monitoring of energy consumption was the reference for developing an energy model for the building using EnergyPlus and DesignBuilder software. The model was applied to forecast the building energy performance of our more efficient AC technologies available in the Colombian market, and valuable according to building specifications (Split, VRF, VAV, and Chiller). Results show a reduction in energy consumption of approximately 30% with the technology change and 15% savings in life cycle costs (LCCs), even though the building is already considered to have a low energy consumption according to national regulations. The findings of this study underscore the potential for widespread applicability across all types of buildings, regardless of their energy consumption profile, be it low, medium, or high. This extensive applicability not only highlights the adaptability and versatility of the technology but also underscores its significance in achieving substantial energy savings and cost reductions across the entire building industry, contributing to a more sustainable and economically efficient future.

show abstract

Critical Review of the Literature on Thermal Comfort in Educational Buildings: Study of the Influence of the COVID-19 Pandemic

Romero,

Miranda,

Montero

et al. 2023

Indoor Air

View full text Add to dashboard Cite

Thermal comfort in educational buildings affects not only the well-being of students but also their academic performance. Over time, various methods have been developed to assess it. However, none of them takes into account the adaptation of students of different ages, which is an important issue. In recent years, the study of thermal comfort has become very important due to energy-saving measures and ventilation protocols to combat the spread of the SARS-CoV-2 coronavirus. Therefore, it is necessary to gather all the information to guide future research. Thus, this paper presents a comprehensive review of field studies on thermal comfort in classrooms at different educational levels. The focus is on those conducted during the global pandemic of COVID-19. It has been observed that students from climates with a higher degree of variation have shown a better adaptation. Children also tended to feel less affected by changing temperatures. High school and university students showed a greater range of dissatisfaction with heat than with cold. The adaptive approach is more suitable for recognising the comfort needs of all age groups. However, by using this approach together with the Fanger method, more reliable results have been reported. In most of the studies, comfort levels were found to be lower than those indicated by the standards, highlighting the need for guidelines adapted to the thermal comfort conditions of all students. Finally, the various natural ventilation measures to avoid COVID-19 infection have led to a decrease in comfort levels, especially in winter.

show abstract

Energy-Use and Indoor Thermal Performance in Junior High School Building after Air-Conditioning Installation with the Private Finance Initiative

Cited by 3 publications

References 16 publications

Decarbonizing Indonesia’s New Capital City: Retrofitting The Design of Ministries Complex in IKN With Closed-loop System of Carbon Capture and Microalgae Secondary Skin

Decarbonizing Indonesia’s New Capital City: Retrofitting The Design of Ministries Complex in IKN With Closed-loop System of Carbon Capture and Microalgae Secondary Skin

Energy Performance of a University Building for Different Air Conditioning (AC) Technologies: A Case Study

Critical Review of the Literature on Thermal Comfort in Educational Buildings: Study of the Influence of the COVID-19 Pandemic

Contact Info

Product

Resources

About