The Latest Technologies of Air Conditioner

2012 ◽  
Vol 132 (8) ◽  
pp. 536-538
Author(s):  
Sumikazu MATSUNO
Keyword(s):  
Air Conditioner

Air Diverter System Prototypes for a Mobile Air Conditioner by Material Addition Method using 3D Printer

2019 ◽  
Vol 3 (1) ◽  
pp. 1-9
Author(s):  
Syed Ahmed Alisha ◽  
◽  
N Vinod Kumar Reddy ◽  
Akhil Reddy ◽  
Sampath Kumar ◽  
...  
Keyword(s):  
3D Printer ◽  
Air Conditioner ◽  
Addition Method

A Novel Design of An Air Conditioner Water Heater

1987 ◽  
Author(s):  
D. T. Chen ◽  
J. Y. Lin ◽  
Y. K. Chuah ◽  
L. J. Fang
Keyword(s):  
Air Conditioner ◽  
Water Heater ◽  
Novel Design

COMPARATIVE ANALYSIS OF AUTOMOTIVE AIR CONDITIONER WITH WATER-COOLED AND AIR-COOLED CONDENSER

2020 ◽  
Author(s):  
Renato Arruda de Oliveira ◽  
Luiz Machado ◽  
Willian Moreira Duarte
Keyword(s):  
Comparative Analysis ◽  
Air Conditioner

Numerical and Experimental Modeling of Indoor Air Quality Inside a Conditioned Space with Mechanical Ventilation and DX-Air Conditioner

2020 ◽  
Vol 38 (9A) ◽  
pp. 1257-1275
Author(s):  
Wisam M. Mareed ◽  
Hasanen M. Hussen
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Ventilation System ◽  
Thermal Conditions ◽  
Airflow Rate ◽  
Air Conditioner ◽  
Breathing Zone ◽  
Lecture Room ◽  
Ventilation Performance

 Elevated CO2 rates in a building affect the health of the occupant. This paper deals with an experimental and numerical analysis conducted in a full-scale test room located in the Department of Mechanical Engineering at the University of Technology. The experiments and CFD were conducted for analyzing ventilation performance. It is a study on the effect of the discharge airflow rate of the ceiling type air-conditioner on ventilation performance in the lecture room with the mixing ventilation. Most obtained findings show that database and questionnaires analyzed prefer heights between 0.2 m to 1.2 m in the middle of an occupied zone and breathing zone height of between 0.75 m to 1.8 given in the literature surveyed. It is noticed the mismatch of internal conditions with thermal comfort, and indoor air quality recommended by [ASHRAE Standard 62, ANSI / ASHRAE Standard 55-2010]. CFD simulations have been carried to provide insights on the indoor air quality and comfort conditions throughout the classroom. Particle concentrations, thermal conditions, and modified ventilation system solutions are reported.

Study on Water-Cooled Solar Semiconductor Air Conditioner

2015 ◽  
Vol 9 (1) ◽  
pp. 135-140
Author(s):  
Dong Zhi-Ming ◽  
Guo Li-Xia ◽  
Chang Ji-Bin ◽  
Zhou Xue-Bin
Keyword(s):  
Air Conditioning ◽  
Working Condition ◽  
Test System ◽  
Air Conditioner ◽  
Solar Panels ◽  
Experimental Room ◽  
Maximum Value ◽  
Cooling Unit ◽  
Battery Capacity ◽  
Solar Powered

Aiming to compare the cooling effect, two types of solar-powered semiconductor air-conditioning devices were designed in different structures. According to the cooling load in an experimental room, the solar panels and battery capacity were determined for the development of a test system. In the same working condition, a comparison test was carried out to examine the cooling performance. Experimental results showed that the design of dual water-cooled cooling unit presented a higher ratio of energy efficiency, with its maximum value of 1.08. By observing the experimental data of the prototype, its comparative economic evaluation results indicated that the annualized cost of solar semiconductor airconditioning was app. 2.7 times that of air-conditioning made from an ordinary compressor.

Development of Pure Sine Wave Inversion System with Inbuilt Charging and Display Mechanisms

2018 ◽  
Vol 3 (2) ◽  
pp. 1-6
Author(s):  
Raji A. Abimbola
Keyword(s):  
Energy Demand ◽  
Noise Pollution ◽  
Sine Wave ◽  
Maintenance Cost ◽  
Air Conditioner ◽  
Health It ◽  
Power Generator ◽  
Available Energy ◽  
Wave Inversion ◽  
Running Cost

In recent years, Nigeria’s power generation output from all the available energy sources such as coal, natural gas, and water, is far from the expected number required to meet the energy demand of her teeming populace. This culminates in long hours of power outages frequently experienced in many parts of the country. However, there appears to be no end in sight to the problem. Alternatively, few citizens who can afford generator have wittingly resulted to the use of this device to supply power. Generator set has unavoidable disadvantages of high maintenance or running cost, noise pollution, and release of dangerous gases that pose danger to human lives. Evidently, that solution is risky and inadequate. Power inverter is an alternative and better means of generating electricity with little or no maintenance cost, environment or eco- friendly and poses no risk to human health. It is in that connection that we develop in this work 2KVA sine wave inversion system which produces sinusoidal A.C. signal required in homes for lightning and powering electronic gadgets like television, radio, refrigerator, Air conditioner etc. It is an improvement over square wave and modified sine wave inversion systems that generate digital approximations of A.C. signal. An interesting but new addition is the use of LCD display, interfaced with PIC16F688 microcontroller for showing the design specifications of the inverter.

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