scholarly journals Cooling performance test of neon refrigeration system using commercial helium compressor

2011 ◽  
Vol 13 (3) ◽  
pp. 36-41
Author(s):  
Jun-Seok Ko ◽  
Hyo-Bong Kim ◽  
Han-Kil Yeom ◽  
Yong-Ju Hong ◽  
Seong-Je Park ◽  
...  
Keyword(s):  
Performance Test ◽  
Refrigeration System ◽  
Cooling Performance

Cooling performance and evaluation of automotive refrigeration system for a passenger car

2016 ◽  
Author(s):  
Prajitno ◽  
Deendarlianto ◽  
Akmal Irfan Majid ◽  
Mahardeka Dhias Mardani ◽  
Wendi Wicaksono ◽  
...  
Keyword(s):  
Refrigeration System ◽  
Passenger Car ◽  
Cooling Performance ◽  
Performance And Evaluation

Performance Test of Scroll Compressor for Cryogenic Refrigeration System

2021 ◽  
Vol 25 (6) ◽  
pp. 60-65
Author(s):  
Jongwoo Kim ◽  
Jiho Park ◽  
Hyobong Kim ◽  
Sangyoon Choo ◽  
Hankil Yeom ◽  
...  
Keyword(s):  
Performance Test ◽  
Refrigeration System ◽  
Scroll Compressor

Experimental Study on the Cooling Performance of a Turbine Nozzle With an Innovative Internal Cooling Structure

2009 ◽  
Author(s):  
Shu Fujimoto ◽  
Yoji Okita ◽  
Chiyuki Nakamata
Keyword(s):  
Film Cooling ◽  
Pressure Loss ◽  
Performance Test ◽  
Internal Cooling ◽  
Basic Design ◽  
Design Data ◽  
Cooling Effectiveness ◽  
Cooling Performance ◽  
Film Cooling Effectiveness ◽  
Conventional Cooling

An innovative cooling structure named multi-slot cooling was invented for high-pressure turbine (HPT) nozzles and blades. This cooling structure has been designed to be simple, inexpensive, and to exhibit good cooling performance. In a previous study (GT2008-50444), the basic design data on the cooling effectiveness and pressure loss coefficients for HPT cooling design were obtained by using simple test pieces. In this study, the cooling performance of the HPT nozzle with a multi-slotted cooling structure in a cascade was reported. First, the HPT nozzle with a multi-slotted cooling structure and its outer profile were selected; its cooling structure was designed by using the data in the previous study and trial-and-error method. Subsequently, ceramic casting cores and casting nozzles were manufactured by way of trial. Furthermore the cooling performance test for the multi-slotted cooling nozzle (TEST #1) in an annular sector cascade test rig was conducted, and the cooling effectiveness fields and pressure loss data were obtained. In addition, the measurement test for determining the heat transfer coefficient on the nozzle (TEST #2) and that for determining the film cooling effectiveness on the nozzle (TEST #3) were conducted. And then, cooling performance of the multi-slotted cooling nozzle was evaluated by using these data. As a result, for the typical configuration, it was confirmed that the basic design data obtained in the previous study are applicable to designing nozzles with multi-slot cooling by introducing a minor modification and the cooling performance of multi-slot cooling is equivalent to that of the conventional cooling under the test condition; consequently, it was confirmed that the multi-slot cooling is well applicable to the cooling of actual HPT airfoils except in the case that its configuration is significantly changed.

scholarly journals Performance Test of 2 kW Class Reverse Brayton Refrigeration System

2020 ◽  
Vol 31 (5) ◽  
pp. 429-435
Author(s):  
JUNSEOK KO ◽  
KEUN-TAE LEE ◽  
SEONG-JE PARK ◽  
JONGWOO KIM ◽  
SANGYOON CHOO ◽  
...  
Keyword(s):  
Performance Test ◽  
Refrigeration System

scholarly journals Cooling Performance Analysis of the Lab-Scale Hybrid Oyster Refrigeration System

Processes ◽  
2020 ◽  
Vol 8 (8) ◽  
pp. 899 ◽  
Author(s):  
Xuejun Qian ◽  
Yulai Yang ◽  
Seong W. Lee ◽  
Marc J. L. Caballes ◽  
Oludayo S. Alamu
Keyword(s):  
Temperature Distribution ◽  
Operating Conditions ◽  
Cooling Time ◽  
Maximum Temperature ◽  
Refrigeration System ◽  
Uniform Temperature ◽  
Maximum Temperature Difference ◽  
Cooling Performance ◽  
Uniform Temperature Distribution ◽  
Air Circulation

Compared with the waste-to-heat and electricity-based hybrid refrigeration system, the innovative lab-scale refrigeration system integrated with the DC and AC cooling units that able to use solar and electricity as energy resources. Previous studies found that temperature control and uniform temperature distribution in refrigeration systems are both critical factors reducing vibrio growth on raw oysters and saving energy consumption. Therefore, this refrigeration system also equipped a specially designed divider and was used to test various air circulation strategies to achieve uniform temperature distribution in six individual compartments. The objective is to investigate and evaluate the effects of air circulation strategies and operating conditions on the cooling performance, including temperature distribution, standard deviation of compartment temperatures, and cooling time using a factorial design method. Results indicated the maximum temperature difference between the compartments was 8.9 ± 2.0 °C, 6.7 ± 2.0 °C, and 4.8 ± 2.0 °C in the scenarios of no air circulation, natural air circulation, and combined natural and forced air circulation, respectively. The interaction of fan location and fan direction showed a significant effect on the compartment temperatures while there was no significant effect on cooling time. A circulation fan on the lower part of the 12-volt section with an air supply from the 12- to 110-volt section was determined as the optimal condition to achieve relatively uniform temperature distribution. Refrigeration system also achieved a cooling temperature of 7.2 °C within 150 min to meet regulations. To that end, the innovative hybrid oyster refrigeration system will benefit oyster industries, as well as the aquaculture farmers in terms of complying with regulations and energy savings.

scholarly journals Cooling Performance Test and Analysis of a Radiant-convective Air Conditioning Terminal Device with Parallel Pipes

2016 ◽  
Vol 146 ◽  
pp. 128-133
Author(s):  
Shu Hiawen ◽  
Shi Jing ◽  
Wang Tingyu ◽  
Wang Hongbin ◽  
Duanmu Lin
Keyword(s):  
Air Conditioning ◽  
Performance Test ◽  
Cooling Performance ◽  
Terminal Device
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