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"ABSTRAKTingginya biaya awal pada investasi green building membuat minat para pengembang belum besar dalam mengembangkan green building. Untuk menarik minat pengembang yang masih berorientasi pada keuntungan dalam mengimplementasikan green building, salah satu usaha yang dapat dilakukan pemerintah adalah dengan mengimplementasikan sistem insentif pada skema perijinan bangunan. Dengan tetap menjaga komitmen negara kepada dunia mengenai pengurangan emisi, penelitian ini berusaha mengembangkan skema kebijakan insentif yang dapat mendatangkan keuntungan bagi pengembang dan pemerintah selaku stakeholder pada pengembangan green building berbasis efisiensi energi. Dalam penelitian ini dilakukan studi literatur dan benchmarking analysis yang hasilnya dibahas bersama para pakar yang berpengalaman pada pengembangan green building dan kebijakan-kebijakannya melalui wawancara mendalam. Life Cycle Cost Analysis LCCA pada studi kasus yaitu dua green building di Indonesia ini diterapkan. Sehingga, dihasilkan model kebijakan insentif yang dapat menjawab hipotesa penelitian. Dengan dilakukannya metode tersebut, maka akan dihasilkan kesimpulan apakah pemberian insentif pada green building menghasilkan investasi efisiensi energi yang layak.

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ABSTRACTA significant amount of incremental cost in investing green building is resulting a low interest in the development of green building among developers. Hence the developers nowadays still focusing on profit in implementing green building concept on their building developments, one of the government effort to attract developers for applying green concept on their buildings is by creating incentive policy building permit regulation. By keeping nation rsquo s commitment to the world for reducing emission, this research aims to develop a model for incentive policy which leads to advantages toward developers and government as stakeholder in the development of green buildings based on energy efficiency. In this research, literature and benchmarking analysis are reviewed with experts experienced in green building and policy development through in depth interviews. Life Cycle Cost Analysis LCCA in the case study of 2 green building in Indonesia was done so that the incentive policy model was produced which could answer the research hypothesis. By doing this method, it will generate a conclusion whether the provision of incentives on green building produces a viable energy efficiency investment."

"AC telah menjadi salah satu kebutuhan mendasar manusia terutama di Indonesia. Penggunaan AC tersebut difokuskan untuk kenyamanan pengguna nya. Dengan meningkatnya jumlah populasi masyarakat Indonesia, terjadi peningkatan pula pada penggunaan energi listrik. AC adalah salah satu alat yang digunakan pada rumah yang sangat konsumtif energi listrik. Permasalahan pemakaian energi yang meningkat ini adalah alasan pemerintah Indonesia mendorong untuk menggunakan teknologi yang efisien energi. Salah satu metode adalah pengujian AC dan pelabelan AC menggunakan energy efficiency ratio dengan menggunakan ruangan psikometrik. Salah satu syarat untuk perhitungan EER adalah temperatur udara yang akan digunakan untuk perhitungan kapasitas pendinginan AC. Alat ukur temperatur udara yang digunakan akan berfungsi untuk mengukur temperatur bola basah dan kering udara masuk serta keluar evaporator yang akan digunakan untuk mendapatkan perbedaan entalpi udara. Diperlukan perhitungan serta pertimbangan saat merancang dan mengkonstruksi alat ukur temperatur udara seperti ukuran fan, ukuran pipa, dan sensor yang digunakan. Selain perhitungan, harus dipastikan bahwa rancangan tersebut sesuai dengan standar yang sudah diterapkan pemerintah atau pun lembaga internasional. Secara keseluruhan, karya tulis ini akan membahas mengenai tahap perancangan serta perhitungan alat ukur temperatur udara untuk pengujian dan pelabelan energi AC.

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Air conditioner has been one of the main necessities for mankind, especially for people living in warm climate countries such as Indonesia. The need for air conditioner itself functions for the comfort of users and also operating functions of certain equipment. Due to global warming, increase in the temperature of the Earth forces greater energy consumption of air conditioner to reach the required room temperature requested by the user. This increase in energy consumption has been the main focus of the Indonesian government in finding solutions to help reduce energy consumption from non-renewable energy power plants while still fulfilling societies demand. One solution is applying energy labelling for air conditioners using Energy Efficiency Ratio (EER) as a parameter. In order to calculate the EER of air conditioners, a controlled room environment is needed, thus the reason of creating the Psychrometric Chamber. One of the required data to calculate EER is the temperature of air leaving the evaporator which will take part for the cooling capacity calculation, thus the reason for constructing the Air Sampling. The Air Sampling collects data of dry bulb temperature and wet bulb temperature of air exiting the evaporator and also the Psychrometric Chamber room. Certain calculations are needed in designing the Air Sampling which involves fan selection, pipe selections, and sensor selections. Besides calculation, the design of the Air Sampling needs to follow standards where applicable. Overall, this paper shows the design process and construction of the Air Sampling in the Psychrometric Chamber to calculate the EER for energy labelling."

"Sektor bangunan gedung merupakan salah satu pengguna energi listrik terbesar.Sistem pada bangunan gedung yang menggunakan energi listrik terbesar, antaralain adalah sistem tata udara, sistem pencahayaan, dan sistem transportasi gedung.Energy Saving Performance Contract (ESPC) dapat menjadi salah satu alternatifdalam mendukung implementasi efisiensi energi pada sektor bangunan gedunghingga 10-30%. Studi ini menginvestigasi penerapan ESPC dalam Replacementperangkat sistem tata udara pada gedung, yaitu Chiller. Replacement perangkatChiller dapat menghasilkan efisiensi energi listrik sebesar 1200 MWh/tahun ataumengurangi konsumsi energi listrik hingga 34% dengan investasi payback period5 tahun. Studi ini dapat diperluas untuk mengembangkan penerapan ESPC diIndonesia.

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Building sector is one of the biggest electricity energy consumption. Building’s

system that used the biggest electrical energy consumption, are air conditioning

systems, lighting systems, and building transportation systems. Energy Saving

Performance Contract (ESPC) could be an alternative to support implementation

of energy efficiency in the building sector up to 34%. This study investigates the

application of ESPC in the Replacement of the air conditioning system in the

building, Chiller. Chiller Replacement can produce 1200 MWh/year energy

efficiency or reduce 34% electrical energy consumption with a 5-year payback

period investment. This study can be broadened to develop application of ESPC in

Indonesia."

"This book focuses on the modeling, optimization, and applications of 5G green mobile communication networks, aimed at improving energy efficiency and spectrum utilization in 5G systems. It offers a balance between theoretical analysis and engineering practice, providing in-depth studies of a number of major topics, such as energy consumption models, optimization, system design, implementation, and performance evaluation. It also discusses four aspects of green communication in detail: cellular networks, resource management, wireless transmissions and multi-media communications. Further, this unique book comprehensively and systematically discusses green optimization in wireless mobile communications. As such it is a valuable resource for researchers, engineers, and graduate students in various fields, including telecommunications engineering, electrical and electronic engineering, and computer engineering, particularly those interested in green communications."

"ASBTRAKMaraknya isu global warming menarik perhatian kalangan umum. Meningkatnya CO2 penyebab gas rumah kaca menjadi pemicu efisiensi energi pada green building. Penelitian ini meninjau proyek bangunan green tersertifikasi oleh Green Building Council Indonesia (GBCI) berlandaskan greenship v.1.0 dengan target rating GOLD. Hipotesa konstruksi green bulding akan menambah biaya jika dibandingkan dengan conventional. Metode yang digunakan adalah survey dan studi kasus proyek Jasa Marga oleh PT.PP Persero (Tbk) terhadap penerapan aspek Energy Efficiency and Conservation. Pada aspek ini faktor dominan perubahan biaya konstruksi terdapat pada measurement energy dengan desain penurunan nilai OTTV. Total perubahan kenaikan biaya berdasarkan studi kasus adalah 3.24%.

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ABSTRACTThe rise of the global warming issue attracted the attention of the public. Increased CO2 causes a greenhouse gas trigger energy efficiency in green building. The research was reviewing a green building project to be certified by the Green Building Council of Indonesia (GBCI) which is summarized in version 1.0 with targeted GOLD rating.its hipotized that gren construction needs additional cost than conventional. The method used in this study is survey and case studies on projects Jasa Marga by PT.PP Corporation (Corporation) on the implementation aspects of the Energy Efficiency and Conservation. This dominant factor changed the construction costs is the energy measurement with decrease the value of OTTV.By the case study cost, its changes about 3.24%."

"Tingkat efisiensi penggunaan energi di Indonesia khususnya dalam sektor transportasi masih rendah, hal ini tentu saja menjadi masalah yang serius. Oleh karena itu harus ada upaya konservasi energi. Teknologi sistem CCHP (Combined Cooling, Heating and Power) pada bangunan bandara merupakan salah satu jawaban dari tantangan pada sektor commercial building tersebut yang dibahas dalam penelitian ini. Dalam penelitian ini dilakukan perbandingan antara pemakaian energi pada sistem eksisting (listrik dari jaringan PLN/konvensional) dengan sistem CCHP berdasarkan analisis teknis dan ekonomi pada bandara referensi. Selain itu juga akan dianalisis mengenai skema keekonomian sistem CCHP, yaitu sistem CCHP dibangun sendiri oleh pihak bandara atau melakukan kerjasama dengan ESCO melalui model bisnis BOT. Sistem CCHP disimulasikan dengan perangkat lunak berbasis analisis termodinamika dan konservasi energi dengan dasar desain FEL (Following the Electric Load). Hasil simulasi menunjukkan bahwa sistem CCHP mampu menghemat konsumsi energi primer sebesar 83,32%. Berdasarkan efisiensi tersebut, bandara mendapat penghematan biaya energi listrik sebesar 50% dibandingkan kondisi eksisting. Keuntungan lain yang didapat adalah penurunan emisi karbon dioksida (CO₂) yang dihasilkan sampai dengan 7,4% sehingga dapat mendukung terciptanya salah satu aspek pembentuk smart city.

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The level of energy use efficiency in Indonesia especially in the transportation sector is still categorized as low, this absolutely becoming a serious problem. Therefore there must be energi conservation efforts. The CCHP (Combined Cooling, Heating and Power) system technology in airport buildings is one of the answer to the challenges in the transportation sector as discussed in this study.

In this study, energy consumption in the existing system (electricity from PLN / conventional network) with CCHP system are compared based on technical and economic analysis at reference airport. Besides, the CCHP system application scheme will also be analyzed, which is the CCHP system built by the airport itself or cooperating with ESCO through the BOT business model. The CCHP system is simulated with software based on thermodynamic analysis and energy conservation on the basis of FEL design (Following the Electric Load).

The simulation results show that CCHP system can save the primary energy consumption up to 83,32%. Based on this the primary energy consumption efficiency, the airport get electricity cost saving up to 50% compared to the existing condition. Another advantage obtained is the decrease in carbon dioxide (CO2) emissions produced up to 7.4% so that it could support the creation of one of the forming aspects of smart city."

"In tropical countries like Indonesia, maintaining comfortable and healthy indoor environments is a significant challenge due to high temperatures and humidity levels. This issue is particularly critical for the Fast-Moving Consumer Goods (FMCG) industry, where specific room ambient conditions are necessary to ensure product safety and quality, especially during processes like beverage filling. This research delves into integrating heat pipes into HVAC systems to improve energy efficiency in regards to ensuring clean room conditions during beverage filling processes. With hopes to align with the United Nations Sustainable Development Goals (SDGs). The research employed two-row U-shaped heat pipes with a wick structure made of sintered copper, filled with water at a 50% ratio. The U-shaped HPHE facilitates both precooling and reheating processes. The evaporator section absorbs heat from incoming air, reducing the compressor's workload. After passing through the cooling coil, the air temperature rises again due to heat release at the condenser side of the HPHE, reducing the energy needed for reheating during dehumidification. Initial characterization of the heat pipe was conducted with an inlet air temperature of 45°C and an air velocity of 1.4 m/s. Our experiments revealed a peak temperature increase of 6.4°C on the condenser side, resulting in a 20.7% reduction in relative humidity. The temperature drop on the evaporator side was 0.7°C. Maximum energy savings of 304.44 W were achieved at this inlet temperature with an air velocity of 2.2 m/s. To understand the performance under lower temperature conditions, further tests were conducted at inlet temperatures of 30°C, 35°C, and 40°C. These variations demonstrated the versatility of the U-shaped HPHE in improving dehumidification efficiency across a range of operating conditions. The highest effectiveness observed was 21.04%, showcasing the potential of U-shaped HPHEs in enhancing energy efficiency in HVAC systems.

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Di negara-negara tropis seperti Indonesia, menjaga lingkungan dalam ruangan yang nyaman dan sehat merupakan tantangan besar karena suhu tinggi dan tingkat kelembapan yang tinggi. Masalah ini sangat penting bagi industri barang konsumen cepat saji (Fast-Moving Consumer Goods atau FMCG), di mana kondisi ruangan tertentu diperlukan untuk memastikan keamanan dan kualitas produk, terutama selama proses pengisian minuman. Penelitian ini mendalami integrasi pipa panas ke dalam sistem HVAC untuk meningkatkan efisiensi energi dalam menjaga kondisi ruangan bersih selama proses pengisian minuman. Dengan harapan untuk selaras dengan Tujuan Pembangunan Berkelanjutan Perserikatan Bangsa-Bangsa (SDGs). Studi ini menggunakan pipa panas berbentuk U dengan struktur sumbu yang terbuat dari tembaga sinter, diisi dengan air pada rasio 50%. HPHE berbentuk U ini memfasilitasi proses pendinginan awal dan pemanasan ulang. Bagian evaporator menyerap panas dari udara yang masuk, mengurangi beban kerja kompresor. Setelah melewati koil pendingin, suhu udara naik kembali karena pelepasan panas di sisi kondensor HPHE, mengurangi energi yang dibutuhkan untuk pemanasan ulang selama dehumidifikasi. Karakterisasi awal pipa panas dilakukan dengan suhu udara masuk 45°C dan kecepatan udara 1,4 m/s. Eksperimen ini mengungkapkan peningkatan suhu puncak sebesar 6,4°C di sisi kondensor, menghasilkan pengurangan kelembapan relatif sebesar 20,7%. Penurunan suhu di sisi evaporator adalah 0,7°C. Penghematan energi maksimum sebesar 304,44 W dicapai pada suhu udara masuk ini dengan kecepatan udara 2,2 m/s. Untuk memahami kinerja pada kondisi suhu yang lebih rendah, pengujian lebih lanjut dilakukan pada suhu udara masuk 30°C, 35°C, dan 40°C. Variasi ini menunjukkan fleksibilitas HPHE berbentuk U dalam meningkatkan efisiensi dehumidifikasi di berbagai kondisi operasi. Efektivitas tertinggi yang diamati adalah 21,04%, menunjukkan potensi HPHE berbentuk U dalam meningkatkan efisiensi energi di sistem HVAC."

"SEB'11 formed a welcome opportunity for researchers in subjects related to sustainability, renewable energy technology, and applications in the built environment to mix with other scientists, industrialists and stakeholders in the field.The conference featured presentations on a range of renewable energy and sustainability related topics. In addition the conference explored two innovative themes : the application of intelligent sensing, control, optimisation and modelling techniques to sustainability and the technology of sustainable buildings. These two themes combine synergetically to address issues relating to the intelligent building."