3D Modelling and Analysis Flow of Air Conditioner Outdoor Fan for Cost Reduction

2011 ◽  
Vol 264-265 ◽  
pp. 1568-1573 ◽  
Author(s):  
Seung Hyun Choi ◽  
Jae Yeol Kim
Keyword(s):  
Power Consumption ◽  
Noise Level ◽  
Cost Reduction ◽  
Air Conditioning ◽  
3D Modelling ◽  
Air Conditioner ◽  
Axial Fan ◽  
Automobile Engine ◽  
Air Conditioning System ◽  
The Cost

Spread of household air conditioning system is continued to be increased. Along with the spread, the acknowledgement on product quality by the customer is increasing. Therefore, not only basic performances like cooling and power consumption but also design and noise level of in-house and external unit become the important factors. Axial fan in the external unit of air conditioning system is for ventilation and air supplying unit, and the related products have been widely adopted as household electronics, automobile engine, big sized blower in factory, tunnel, and subway. In this study, commercial 3-winged propeller fan from S company is modified to 2-winged fan for the cost reduction. Using 3D modelling, the fan shape is modified, and analysis flow is adopted to provide the way to reduce cost while maintaining the same wind capacity.

scholarly journals Energy Saving in Split Air Conditioner using Evaporative Cooling Pad at the ODU

2019 ◽  
Vol 9 (1) ◽  
pp. 1858-1862
Keyword(s):  
Power Consumption ◽  
Performance Improvement ◽  
Air Conditioning ◽  
Evaporative Cooling ◽  
Cooling Capacity ◽  
Air Conditioner ◽  
Optimum Thickness ◽  
Outdoor Air ◽  
Air Conditioning System ◽  
Overall Performance

The objective of the study is to investigate the performance improvement in a split air conditioning system using evaporative cooling pads at ODU (outdoor unit) and to determine optimum thickness and material of the cooling pad. For this purpose experiments were conducted on 0.8 TR capacity split air conditioner charged with refrigerant R-22. For comparison experiments were performed with and without evaporative cooling pad. The effect of the different cooling pad material and thickness on the overall performance of split air conditioner is experimentally found by measuring cooling capacity and the power consumption of the system including water circulation pump. From the experimental work it is found that the cellulose cooling pad gives the best results among the selected materials. Split air conditioner coupled with cellulose cooling pad of 100 mm thickness at ODU results in to 13.8% increase in overall COP, 9.5 % reduction in power consumption and 5.1 % increase in cooling capacity at 35°C DBT and 32% relative humidity outdoor air condition.

scholarly journals Kenaikan Tingkat Kebisingan Ruangan Kelas Akibat Pengaruh Penyejuk Udara dan Lalu Lintas

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
I Made Indradjaja M. Brunner ◽  
Susy F. Rostiyanti
Keyword(s):  
Noise Level ◽  
Air Conditioning ◽  
Sound Level ◽  
Horizontal Distance ◽  
Air Conditioner ◽  
Air Conditioning System ◽  
Significant Difference ◽  
The Difference ◽  
Closed Door ◽  
Empty Condition

<p>Noise level in the classroom is a factor affecting the learning process. This study aims to determine the level of indoor noise of a private university campus in West Jakarta. Measurements were made using Sound Level Meter that can record the noise level every second with accuracy up to 0.1 dBA. Sampling was carried out in a number of classrooms in an empty condition, closed door, and air conditioning system either in off or on position. Classrooms are distinguished based on the condition of the wall, namely the window facing the outside environment and massive walls without windows to the environment. The measurement results indicate a significant difference in noise level at a 95% confidence level in an empty classroom when the air conditioning system is not functioning and when the system is running. Differences also occur in classrooms with and without windows to the environment. The difference shows that the classroom in an empty condition can experience an increase in latent noise level due to the operation of the air conditioner between 5.78-16.49 dBA. Increased noise from the environment including the highway is about 3 dBA for classrooms located on the 5<sup>th</sup> floor, with a horizontal distance about 100 meters from the highway and has thick and permanent glass windows.</p>

scholarly journals Waste energy recovery in window air conditioning system

2014 ◽  
Vol 3 (2) ◽  
pp. 179
Author(s):  
R. Sasidharan ◽  
V. Palaniswamy ◽  
C.R. Manibharathi ◽  
R. Pannerselvam ◽  
N. Venkatesan
Keyword(s):  
Air Conditioning ◽  
Energy Recovery ◽  
Thermal Environment ◽  
Air Conditioner ◽  
Energy Window ◽  
Water Heater ◽  
Human Comfort ◽  
Air Conditioning System ◽  
Waste Energy ◽  
The Cost

Faster, mightier & smaller is still the keyword for every invention and development. In day-to-day world we concentrate on the compactness and efficiency of every product. Keeping this in thought, the Waste Energy Recovery in Window Air conditioning System is designed and fabricated in an economical manner. Human comfort is that condition of mind, which expresses itself with the thermal environment. In this two rival properties of cool water and heat water are obtained. This system can be used continuously. By using this system there is no need of going for a separate air conditioner or water heater and water cooler. As both purposes are served by a single system, the cost is also lowered to a considerable level. Keywords: Waste Energy, Window Air Conditioning System.

scholarly journals Personal air-conditioning system using evapolar as heat waste management

2021 ◽  
Vol 10 (6) ◽  
pp. 2953-2963
Author(s):  
Nor Azazi Ngatiman ◽  
Abdul Qaiyum Mohd Shariff ◽  
Tole Sutikno ◽  
Suparje Wardiyono ◽  
Mustafa Manap ◽  
...  
Keyword(s):  
Waste Management ◽  
Power Consumption ◽  
Thermal Comfort ◽  
Air Conditioning ◽  
Development Stage ◽  
Green Technology ◽  
Comfort Level ◽  
Small Scale ◽  
Air Conditioning System ◽  
The Cost

Air-conditioning system that uses compressor-based initiate more energy and affects bill rate. As a result, an application of the Peltier impact module, a portable air-conditioning system is introduced to compensate user convenience by lowering sensible and latent heat inside the office area. Thermoelectric Peltier module is a thermoelectric semiconductor that offers cooling and hot plate once the plate is supplied by electric. The result reduces the cost, power consumption, and give thermal comfort in a dedicated space. The advantage of the study is the ability to cost deduction due to low power consumption and green technology devices factor because without refrigerant that harms the environment. Redesign the product with Evapolar as heat waste management affect the performance and need to be validated. The development stage of this product is better compared to a previous product which offers small scale, light, and portable. This product focuses on the office room, which gives a good feeling to users. This product uses air to remove the heat waste and the result indicates Evapolar is fit enough in dissipating heat. Finally, the performance of this system developed demonstrated that it can attain thermal comfort level.

Experimental evaluation on a centralized air conditioning system embedded with a split-type air conditioner as a dedicated subcooler

2021 ◽  
pp. 102585
Author(s):  
Kasni Sumeru ◽  
Mohamad Firdaus Sukri ◽  
Triaji Pangripto Pramudantoro ◽  
Eddy Erham ◽  
Rizki Muliawan
Keyword(s):  
Experimental Evaluation ◽  
Air Conditioning ◽  
Air Conditioner ◽  
Air Conditioning System

scholarly journals Performance analysis of retrofit R410a refrigerant with R32 refrigerant on a split air conditioner

2021 ◽  
Vol 2 (1) ◽  
pp. 1-4
Author(s):  
I Nengah Ardita ◽  
◽  
I Gusti Agung Bagus Wirajati ◽  
I Dewa Made Susila ◽  
Sudirman Sudirman ◽  
...  
Keyword(s):  
System Performance ◽  
Air Conditioning ◽  
Quantitative Description ◽  
Air Conditioner ◽  
Experimental Equipment ◽  
Evaporation Heat ◽  
Before And After ◽  
Common Group ◽  
The Cost ◽  
Design And Manufacture

Split air conditioning (AC) is the most widely used in the community for both commercial and domestic utilities. At the present refrigerant which used in Split AC is mostly common group of HFCs, such as R410a. R410a is a zeotropic refrigerant and if there is a leak in the system, it cannot be added this refrigerant. This will increase the cost of maintenance. The aims of this research is to investigate the retrofit of R410a with R32 on the Split AC system. The R32 is chosen because it has higher latent evaporation heat at the same temperature and has less effect on global warming. The refrigeration effect, the power consumption and the system performance are the main three quantities that want to be examined in this research which are observed before and after retrofit. Experimental investigation conducted during this research, including design and manufacture of experimental equipment, calibration and tools installment, collecting the experimental data and analysis by quantitative description method before and after retrofit. The results informed that cooling effect increased during the research, but the COP system has a slight decrease about 4%. R32 refrigerant is quite feasible as a retrofit refrigerant to R410a refrigerant.

scholarly journals Cooling performance of Ceiling Radiant Textile Air Conditioning System with Ceiling Cassette Unit of Packaged Air Conditioner

2019 ◽  
Vol 111 ◽  
pp. 01082
Author(s):  
Toshio Yamanaka ◽  
Mari Kuranaga ◽  
Tatsunori Maeda ◽  
Haruto Kitakaze
Keyword(s):  
Air Conditioning ◽  
Scale Model ◽  
Airflow Rate ◽  
Air Conditioner ◽  
Tracer Gas ◽  
Vertical Temperature ◽  
Air Conditioning System ◽  
Cooling Performance ◽  
The Third ◽  
Vertical Temperature Distribution

The authors developed a new radiant air conditioning system named ceiling radiant textile air conditioning system with ceiling cassette unit of packaged air conditioner (PAC). The nonflammable textile is stretched under the ceiling with ceiling cassette units of PAC with a distance of around 30 cm. The aim of this study is to investigate the cooling performance of this new radiant system, so the experiments with full scale model were conducted for three system. The first system is “textile only”, the second system is “textile with guide for air return grille” and the third system is “textile with guide and opening for air return grille”. Airflow rate through textile is measured by tracer gas method. In all cases, the vertical temperature distribution is almost uniform, and the cooling effect of “textile with guide and opening for air return grille” is the largest. As for the radiant effect, two systems of “only textile” and “textile with guide for air return grille” are superior to “textile with guide and opening for air return grille”. The airflow rate trough textile is doubled when using guide, and increased by five times if the opening was provided under the guide.

Performance Value Index of the Solar Air-Conditioning System-PVI

2008 ◽  
Author(s):  
Yuefen Gao ◽  
Xutao Zhang ◽  
Guohua Shi
Keyword(s):  
Renewable Energy ◽  
Air Conditioning ◽  
Air Conditioner ◽  
Performance Indices ◽  
Air Conditioning System ◽  
New Energy ◽  
Energy Application ◽  
Solar Application

Presently, the performance of the air-conditioner or the air-conditioning system is usually valued based on some performance indices. However, it is deficient to evaluate the performance of the air-conditioning system which uses the new energy or renewable energy only based on the indices mentioned above. According to the defects and based on the works of the solar application, a new index defined PVI is put forward to evaluate the performance of the solar air-conditioning system rationally, which is significant to the new energy or renewable energy application.

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