Optimized Cooling System Concept for Electric Compact-SUV with Indian Environmental Conditions

2021 ◽  
Author(s):  
M.Sc. Ashraf Emran ◽  
Shivam Garg ◽  
M.Sc. Patrick Manns ◽  
Vijay Sharma
Keyword(s):  
Environmental Conditions ◽  
Cooling System ◽  
System Concept

scholarly journals Parabolic bifacial solar panel with the cooling system: concept and challenges

2019 ◽  
Vol 1 (10) ◽  
Author(s):  
Badre El Majid ◽  
Saad Motahhir ◽  
Abdelaziz El Ghzizal
Keyword(s):  
Cooling System ◽  
Solar Panel ◽  
System Concept

Improving Grindability of Inconel 600 Using Alumina Wheel through Pneumatic Barrier Assisted Fluid Application

2012 ◽  
Vol 622-623 ◽  
pp. 394-398
Author(s):  
Bijoy Mandal ◽  
Debashis Biswas ◽  
Anirban Sarkar ◽  
Santanu Das ◽  
Simul Banerjee
Keyword(s):  
Surface Quality ◽  
Environmental Conditions ◽  
Cooling System ◽  
Base Alloy ◽  
Experimental Result ◽  
Grinding Wheel ◽  
Wheel Wear ◽  
Experimental Conditions ◽  
Inconel 600 ◽  
Grinding Fluid

A Stiff Air Layer, Formed around a Rotating Grinding Wheel, Tends to Restrict Grinding Fluid Penetrate Deep inside the Grinding Zone. for this, much Fluid Is Wasted, and Thermal Defects in Grinding May Not Be Controlled. in the Present Experimental Work, a Flood Cooling System with Pneumatic Barrier Is Used for Delivering Grinding Fluid. the Pneumatic Barrier Breaks the Stiff Air Layer, and Therefore, Grinding Fluid Reaches Grinding Zone. an Exotic Nickel Base Alloy, Inconel 600, Is Taken for Surface Grinding Experiments Using an Infeed of 30 µm under Different Environmental Conditions. the Effect of Different Experimental Conditions Is Investigated in Respect of Grinding Force, Chip Formation, Surface Quality and Wheel Condition. the Experimental Result Shows that Grinding Forces and Wheel Wear Are Remarkably Reduced, and Favourable Chips and Good Surface Quality Are Obtained with the Use of Flood Cooling along with Pneumatic Barrier Setup Compared to other Environmental Conditions.

scholarly journals Performance Analysis of a Facade-Integrated Photovoltaic Powered Cooling System

2021 ◽  
Vol 13 (8) ◽  
pp. 4374
Author(s):  
Thomas Bröthaler ◽  
Marcus Rennhofer ◽  
Daniel Brandl ◽  
Thomas Mach ◽  
Andreas Heinz ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Architectural Design ◽  
Fossil Fuels ◽  
Cooling System ◽  
Electric Energy ◽  
Integrated Approach ◽  
Climate Conditions ◽  
Fully Integrated ◽  
Considerable Impact ◽  
High Level

Due to recent changing climate conditions and glazing of building facades, a rapid increase in the requirement of cooling systems can be observed. Still the main energy source for cooling are fossil fuels. In this article we report on a fully integrated approach of running a heat pump for actively cooling a test room by electric energy, generated by facade integrated photovoltaic modules, the “COOLSKIN” system. Photovoltaic facades are emission free in the operation phase, efficiently utilize otherwise unused surfaces, and portray a favorable method in terms of construction physics and the architectural design of buildings. Compared to existing systems, COOLSKIN is an entirely autonomous system where every component is located inside the facade structure which introduces a high level of plug and play character. In this article the analysis of the electric performance of the COOLSKIN system with respect to its operation under different environmental conditions is presented. The over all system efficiency was determined with 73.9%, compared to a simulated efficiency (PV*SOL) of 68.8%, and to the theoretically expected value of 85%. The system behavior is evaluated depending on photovoltaic output and the cooling demand. The analysis shows that a considerable amount of cooling demand could be decentrally fulfilled with photovoltaic energy, but environmental conditions as well as system layout have a considerable impact on system performance.

Advanced Vessel Cooling System Concept for High-Temperature Gas-Cooled Reactors

1997 ◽  
Vol 118 (2) ◽  
pp. 89-96 ◽  
Author(s):  
Akio Saikusa ◽  
Kazuhiko Kunitomi ◽  
Shusaku Shiozawa
Keyword(s):  
High Temperature ◽  
Cooling System ◽  
System Concept ◽  
High Temperature Gas

Effect of Environmental Factors on the Performance Characteristics of an Oil Cooling System Designed for a Turbo-Shaft Engine

2009 ◽  
Author(s):  
R. K. Mishra ◽  
A. K. Mishra ◽  
G. Gouda
Keyword(s):  
Environmental Factors ◽  
Environmental Conditions ◽  
Coastal Area ◽  
Power Loss ◽  
Cooling System ◽  
Performance Characteristics ◽  
System Level ◽  
High Humidity ◽  
Acceptable Limit ◽  
Loss And Damage

High rotor speeds of turbo-shaft engines demand an efficient oil cooling system to keep the bearing temperature within the acceptable limit. This makes the oil cooling system to play an important part in engine lubrication circuit and any malfunction or inefficiency of the system will lead to rotor instability and seizure causing power loss and damage to the engine. An oil cooling system has been designed for a 900 kW class turbo-shaft engine. It has undergone system level tests to study the effect of various environmental conditions such as sand ingestion during desert operation, prolong exposure to high humidity and salt-laden atmosphere during marine/coastal area operation, and with growth of fungus on external surfaces, etc. The paper presents the tolerance of the oil cooling system to different adverse environmental factors and highlights their effect on the performance characteristics of the system.

Productivity and physiological response of lactating Holstein cows to sugarcane supplementation and evaporative cooling under heat-stress

2018 ◽  
Vol 156 (7) ◽  
pp. 900-913
Author(s):  
F. P. Campos ◽  
M. R. G. Conceição ◽  
P. Sarmento ◽  
D. R. O. Nicácio ◽  
C. G. Lima ◽  
...  
Keyword(s):  
Milk Production ◽  
Environmental Conditions ◽  
Cooling System ◽  
Latin Square ◽  
Milk Composition ◽  
Holstein Cows ◽  
Maize Silage ◽  
N Efficiency ◽  
Humidity Index ◽  
Body Surface Temperature

AbstractThe objective of the current study was to evaluate the effects of sugarcane and maize silage mixturev.maize silage in diets of Holstein cows and investigate performance under two environmental conditions. The cows were placed in freestalls, with individuals and stalls assigned to one of four treatments according to a replicated 4 × 4 Latin square design with 20-day periods divided into 11 days of adaptation (wash-out period) and 9 days of collection. Treatments were arranged in a 2 × 2 × 2 factorial design: total diets (maize silage (MS-based diet), the roughage mixture (RM-based diet, sugarcane : maize silage, 500 : 500 g/kg DM) plus concentrate); environmental conditions (with (W) and without (Wo) fan and nebulizers); and measurement times (09.40 and 14.00 h). The temperature and relative humidity was higher at 14.00 h and contributed to increased temperature-humidity index (76.6, Wv.75.9, Wo). Feed dry matter intake (DMI) was similar between diets (20.2 kg/day), but milk production and feed efficiency were lower with RM. Under W conditions, higher fat content and total solids of milk were observed with the RM-based diet, while crude protein and lactose were higher with MS. The Wo conditions increased body surface temperature (BS) in cows fed MS. The rectal temperature (RT) was higher with RM. The BS, RT and respiratory rate were higher at 14.00 h (34.9, 38.6 °C and 58.2 breaths/min) than at 09.40 h. The RM-based diet maintained DMI and milk composition, but not milk production. The use of the cooling system led to higher DMI and feed N efficiency use.

Evaluation of Air-Side Economizer Use in a Compute-Intensive Data Center

2009 ◽  
Author(s):  
Michael K. Patterson ◽  
Don Atwood ◽  
John G. Miner
Keyword(s):  
New Mexico ◽  
Temperature Control ◽  
Environmental Conditions ◽  
Data Center ◽  
Energy Savings ◽  
Cooling System ◽  
Lessons Learned ◽  
Information And Communications Technology ◽  
The Impact

Moore’s Law continues to drive increased compute capability and greater performance per watt in today’s and future server platforms. However the increased demand for compute services has outstripped these gains and the energy consumption in the data center continues to rise. The challenge for the data center operator is to limit the operational costs and reduce the energy required to run the Information and Communications Technology (ICT) equipment and the supporting infrastructure. The cooling systems can represent a large portion of the energy use in the support infrastructure. There is significant focus in industry today on applying advanced cooling technologies to reduce this energy. One potential solution is the use of air-side economizers in the cooling system. This technology can provide a reduction in cooling energy by being able to maintain the required temperatures in the data center with the mechanical refrigeration turned off, significantly reducing the PUE for the data center. This paper reviews recent industry activities around the recommended environmental conditions in the data center, the impact to the ICT equipment of air-side economizers, where they can best be applied, and provides data from a case study recently concluded at Intel’s site in New Mexico. In that case study servers from an engineering compute data center were split into a standard configuration (closed system, tight temperature control) and a very aggressive air-side economization section (open system, significant out-door air quantities, moderate temperature control). Both sections performed equally well over a year long on-line test, with significant energy savings potential demonstrated by economizer side. The American Society of Air-conditioning Heating and Refrigerating Engineers (ASHRAE) has recently published new ICT-vendor consensus-based recommendations for the environmental conditions in data centers. These new limits are discussed in light of the successful experiment run in New Mexico as the revised operational envelop allows a far greater number of hours per year when a data center can be run in “free-cooling” mode to obtain the energy savings. Server design features as well as lessons learned from the experiment and their applicability to the potential use of air-side economizers is also discussed.

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