scholarly journals Study on Cooling System for Parked Cars using Mini Air Cooler and Exhaust Fan

2020 ◽  
Vol 3 (2) ◽  
pp. 81-88
Author(s):  
Bagiyo Condro Purnomo ◽  
Indra Chandra Setiawan ◽  
Heru Adi Nugroho

Deaths among children and pets, as well as damage to car interior components, have been widely reported as a result of parking under direct sunlight for a long time. Rising car cabin temperatures in this condition trigger the formation of benzene gas, but it is not possible to turn on the AC due to security and energy consumption. Therefore, this article reports the experimental study on cabin cooling system for parked car under direct sunlight by applying a mini air cooler and exhaust fan powered by a solar cell on small car Bajaj Qute RE60. Two thermocouples were installed inside and outside the cabin to monitor the temperature for 7 hours, expressing daytime heat conditions. The results showed that this cooling system could reduce the temperature to 10 K by removing 8982 kJ (0.356 kW) of heat. In conclusion, this prototype is very promising to be developed and if implemented on a larger scale will reduce car interior damage while parking under direct sunlight.

2019 ◽  
Vol 162 ◽  
pp. 127-135 ◽  
Author(s):  
Aly M.A. Soliman ◽  
Hamdy Hassan ◽  
Shinichi Ookawara

1996 ◽  
Vol 34 (11) ◽  
pp. 125-132 ◽  
Author(s):  
Baozhen Wang ◽  
Wenyi Dong ◽  
Jinlan Zhang ◽  
Xiangdong Cao

The results of an experimental study conducted in a full-scale high rate pond system treating piggery wastewater at Jianfengshan Piggery, Panyu City, Guandong Province, are presented. The system consists of two advanced anaerobic ponds (AAP) in parallel, followed by an anaerobic transformation pond (ATP) and a five-cell algae-bacterial pond (ABP). The mechanism of the AAP is described and the hydraulic flow pattern analyzed. Fermentation pits (FP) built on the bottom performed very efficiently, operating like UASB in principle. A new concept of ATP is advanced, based on its ability to transform poorly degradable materials to more easily degradable ones. It was found in the study that the HRP system was more efficient, more reliable and saved 40% land area compared with a conventional pond system. Economic analyses of both the energy consumption and the benefit to the pond system of fish farming are also included in the paper.


2014 ◽  
Vol 16 (37) ◽  
pp. 20079-20088 ◽  
Author(s):  
Arnab Shit ◽  
Shreyam Chatterjee ◽  
Arun K. Nandi

DSSC fabricated with polyaniline–ZnS nanotubes exhibits reversible turn “on” and “off” capability with an efficiency of 3.4%, as shown by a Nyquist plot, characterizing different transport processes.


2021 ◽  
Vol 6 (24) ◽  
pp. 6286-6294
Author(s):  
Tahir Savran ◽  
Sukriye Nihan Karuk Elmas ◽  
Gonul Akin Geyik ◽  
Aykut Bostanci ◽  
Duygu Aydin ◽  
...  

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3912
Author(s):  
Wassim Salameh ◽  
Jalal Faraj ◽  
Elias Harika ◽  
Rabih Murr ◽  
Mahmoud Khaled

In the context of a world energy crisis, the only solution to control the situation is in the management of energy. One of the most important management keys is the optimization of electrical components. This article presents a complete numerical and experimental study aiming for the optimization of electrical water heaters for household use. The optimization conceives the minimization of energy consumption simultaneously with the minimization of time to heat water. Firstly, a thermal model well adapted for the case of heaters is constructed and validated experimentally and then a parametric study is conducted covering all the input power, the volume and the external area of the heater. Results are promising, showing significant energy savings are possible with an optimum setting of these parameters, thus presenting a firm tool for the optimization of heaters.


Author(s):  
Uschas Chowdhury ◽  
Manasa Sahini ◽  
Ashwin Siddarth ◽  
Dereje Agonafer ◽  
Steve Branton

Modern day data centers are operated at high power for increased power density, maintenance, and cooling which covers almost 2 percent (70 billion kilowatt-hours) of the total energy consumption in the US. IT components and cooling system occupy the major portion of this energy consumption. Although data centers are designed to perform efficiently, cooling the high-density components is still a challenge. So, alternative methods to improve the cooling efficiency has become the drive to reduce the cooling cost. As liquid cooling is more efficient for high specific heat capacity, density, and thermal conductivity, hybrid cooling can offer the advantage of liquid cooling of high heat generating components in the traditional air-cooled servers. In this experiment, a 1U server is equipped with cold plate to cool the CPUs while the rest of the components are cooled by fans. In this study, predictive fan and pump failure analysis are performed which also helps to explore the options for redundancy and to reduce the cooling cost by improving cooling efficiency. Redundancy requires the knowledge of planned and unplanned system failures. As the main heat generating components are cooled by liquid, warm water cooling can be employed to observe the effects of raised inlet conditions in a hybrid cooled server with failure scenarios. The ASHRAE guidance class W4 for liquid cooling is chosen for our experiment to operate in a range from 25°C – 45°C. The experiments are conducted separately for the pump and fan failure scenarios. Computational load of idle, 10%, 30%, 50%, 70% and 98% are applied while powering only one pump and the miniature dry cooler fans are controlled externally to maintain constant inlet temperature of the coolant. As the rest of components such as DIMMs & PCH are cooled by air, maximum utilization for memory is applied while reducing the number fans in each case for fan failure scenario. The components temperatures and power consumption are recorded in each case for performance analysis.


Energy ◽  
2021 ◽  
pp. 122555
Author(s):  
Wei Liao ◽  
Yimo Luo ◽  
Jinqing Peng ◽  
Dengjia Wang ◽  
Chenzhang Yuan ◽  
...  

Author(s):  
H. M. Elgohary ◽  
H. M. Soliman ◽  
A. M. Soliman ◽  
H. H. Gouda ◽  
S.P. Chowdhury

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