All-condition measuring methods for field performance of room air conditioner

Yang, Zixu; Ding, Liqun; Xiao, Hansong; Zhang, Guohui; Wang, Baolong; Shi, Wenxing

doi:10.1016/j.applthermaleng.2020.115887

Cited by 20 publications

(8 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Setiap merek menerapkan pendekatan desain yang berbeda untuk mengoptimalkan efisiensi energi. Ini meliputi penggunaan komponen yang lebih efisien, teknologi inverter, penggunaan bahan isolasi yang lebih baik, dan peningkatan kontrol suhu dan kelembaban [7]. Kualitas komponen yang digunakan dalam AC juga mempengaruhi efisiensi.…”

Section: Pengumpulan Dan Analisis Dataunclassified

“…Selain itu, sebuah penelitian tentang performa efisiensi energi dan kualitas udara dalam ruangan dari jenis AC split dengan SEER (Seasonal Energy Efficiency Ratio) yang berbeda dilakukan dengan mengumpulkan data energi, performa pendinginan, dan kualitas udara dalam ruangan dari dua jenis AC split yang berbeda. Hasil studi menunjukkan bahwa jenis AC split dengan SEER yang lebih tinggi memiliki efisiensi energi yang lebih baik, tetapi juga membutuhkan biaya lebih tinggi [7]. Sebuah penelitian lain yang dilakukan pada iklim di Arab Saudi membandingkan efisiensi energi dari berbagai jenis sistem AC yang berbeda dengan memperhatikan konsumsi energi dan kinerja sistem dari empat jenis AC yang berbeda.…”

unclassified

See 1 more Smart Citation

Perancangan Aplikasi Berbasis Web Sebagai Alat Pendukung Keputusan Dalam Memilih Ac Hemat Energi

2023

RMME

View full text Add to dashboard Cite

The increase in global energy demand has driven the need for efficient solutions in selecting energy-efficient air conditioners (ACs). This research focuses on designing a web-based application as a decision support tool for choosing energy-efficient ACs. Energy-efficient labeled AC data is obtained from the Directorate General of New and Renewable Energy and Energy Conservation (EBTKE) website. This database is processed according to the system's requirements, where each AC brand is evenly represented to prevent dominance by a few brands. There are 11 different AC brands in this dataset, and each brand has 10 data samples. The webbased application is developed using the Python programming language with the Streamlit framework. This application allows users to compare various AC brands by considering power, annual energy consumption, efficiency value, and electricity cost. In the application design, users can select AC brands according to their needs, set the operating duration, choose the AC efficiency level, and select the inverter AC type. The application presents comparisons in the form of bar charts, making it easy for users to understand the differences in AC characteristics. The average results from the efficiency comparison of each AC brand reveal that Daikin achieves the highest efficiency at 16.36 Energy Efficiency Ratio (EER), while the GREE brand has the lowest efficiency at 5.83 EER. This application can assist consumers and industrial AC stakeholders in making decisions to choose energy-efficient ACs according to their needs.

show abstract

Section: Pengumpulan Dan Analisis Dataunclassified

unclassified

Perancangan Aplikasi Berbasis Web Sebagai Alat Pendukung Keputusan Dalam Memilih Ac Hemat Energi

2023

RMME

View full text Add to dashboard Cite

show abstract

“…Nowadays, split-unit type air conditioners are being used to create comfortable environments in residential, commercial, and industrial applications. It is to become the major energy consumers' building in the world [1], [2]. The final energy consumption in Thailand [3] in the building and residential sectors of key assumptions (2010 to 2030) were an annual average gross domestic product (GDP) growth of 4.3%, and an annual average population increase of 0.3%.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of compressor electric current detection for a split-type air conditioner affects energy savings

Saengchandr

Sukontanakarn

Waiyagan

2023

IJECE

View full text Add to dashboard Cite

The paper presents an experimental study that aims to measure the compressor electric current of a split-type air conditioner for analyzing the various abnormal condition of the R-32 refrigerant pressure, especially for detecting compressor electric current while occurring dirt in the evaporator coil and condenser coil. The method was to install sensor devices to measure the temperature and humidity of inlet air and outlet air, and the velocity of the air outlet of the evaporator unit. In condenser unit was to measure the electric current compressor and electric power input. All data from sensors send to the Arduino board and using Parallax Data Acquisition (PLX-DAQ) Excel Macro for the record. The results show physical behavior and the changing of compressor electric current according to the abnormal condition of the refrigerant system, blocking of condenser and evaporator coil.

show abstract

“…However, the energy-performance indicator is used for equipment comparison and does not characterize the actual behavior of the HPWHs under a wide range of environmental conditions. On the other hand, it is based on waterside measurements and cannot provide any information for the refrigerant side, commonly obtained with intrusive and expensive equipment [5], unfeasible for in-situ measurements [6].…”

Section: Introductionmentioning

confidence: 99%

“…Non-intrusive methodologies applied in air-to-air heat pumps, based on compressor energy conservation (CEC), have demonstrated good accuracy [5,6]. Simplicity, reliability, independence, and non-interference in the system's operation are other advantages compared to indoor and outdoor air enthalpy-difference methods [6].…”

Section: Introductionmentioning

confidence: 99%

The Role of the Compressor Isentropic Efficiency in Non-Intrusive Refrigerant Side Characterization of Transcritical CO2 Heat Pump Water Heaters

Lamas

Costa

2022

Clean Technol.

View full text Add to dashboard Cite

Characterizing the refrigerant side of heat pump water heaters (HPWHs) can be intrusive and expensive. On the other hand, direct external measurement techniques can be unfeasible, particularly in commercial HPWHs for residential applications. Non-intrusive in situ characterization methods have already been successfully implemented in subcritical heat pumps. They provide the refrigerant mass flowrate and the equipment energy performance, by using contact temperature sensors and electric power meters. Subcritical suction and discharge-specific enthalpies necessary to apply the method can be obtained from the measured temperatures and their corresponding saturation pressures. Nevertheless, this approach does not apply to the transcritical CO2 HPWHs. In the supercritical region, temperature and pressure are independent variables, and an iterative process regarding the compressor isentropic efficiency has to be considered. However, when isentropic efficiency data are not available, an additional procedure is required, using a validated gas cooler model to verify the physical reliability of the numerical solutions. This work aims at presenting base thermodynamic analysis of a novel methodology for non-intrusive refrigerant side characterization of transcritical CO2 HPWHs, exploring the influence of the compressor isentropic efficiency condition.

show abstract

All-condition measuring methods for field performance of room air conditioner

Cited by 20 publications

References 16 publications

Perancangan Aplikasi Berbasis Web Sebagai Alat Pendukung Keputusan Dalam Memilih Ac Hemat Energi

Perancangan Aplikasi Berbasis Web Sebagai Alat Pendukung Keputusan Dalam Memilih Ac Hemat Energi

Experimental study of compressor electric current detection for a split-type air conditioner affects energy savings

The Role of the Compressor Isentropic Efficiency in Non-Intrusive Refrigerant Side Characterization of Transcritical CO2 Heat Pump Water Heaters

Contact Info

Product

Resources

About