Dynamic simulation and optimal matching of a small-scale refrigeration system

1991 ◽  
Vol 14 (6) ◽  
pp. 329-335 ◽  
Author(s):  
Zhi-jiu Chen ◽  
Wei-han Lin
Keyword(s):  
Dynamic Simulation ◽  
Small Scale ◽  
Refrigeration System ◽  
Optimal Matching

Dynamic Simulation-Based Case Study of Fusion on Small-Scale Electrical Grids

2015 ◽  
Vol 68 (2) ◽  
pp. 341-345 ◽  
Author(s):  
Shutaro Takeda ◽  
Satoshi Konishi ◽  
Yasushi Yamamoto ◽  
Ryuta Kasada ◽  
Shigeki Sakurai
Keyword(s):  
Dynamic Simulation ◽  
Small Scale ◽  
Electrical Grids ◽  
Simulation Based

scholarly journals Fault diagnosis of air-conditioning refrigeration system based on sparse autoencoder

2019 ◽  
Vol 14 (4) ◽  
pp. 487-492
Author(s):  
Zhiyi Wang ◽  
Jiachen Zhong ◽  
Jingfan Li ◽  
Cui Xia
Keyword(s):  
Fault Diagnosis ◽  
Air Conditioning ◽  
Large Scale ◽  
High Efficiency ◽  
Support Vector ◽  
Small Scale ◽  
Refrigeration System ◽  
Large Scale Data ◽  
Fault Features ◽  
Sparse Autoencoder

Abstract To overcome the drawbacks of using supervised learning to extract fault features for classification and low nonlinearity of the features in most of current fault diagnosis of air-conditioning refrigeration system, sparse autoencoder (SAE) is presented to extract fault features that are used as the input to the classifier and to achieve fault diagnosis for air-conditioning refrigeration system. The SAE structure is tuned by adjusting the number of hidden layers and nodes to build the optimal model, which is compared with the fault diagnosis model based on support vector machine. Results indicate that the indexes of the model combined with SAE, such as accuracy, precision and recall, are all improved, especially for the faults with high complexity. Besides, SAE shows high generalization ability with small-scale sample data and high efficiency with large-scale data. Obviously, the use of SAE can effectively optimize the diagnosis performance of the classifier.

Experimental Research on Small-Scale Variable Flow Refrigeration System for Data Cabinets

2014 ◽  
Vol 672-674 ◽  
pp. 1680-1683
Author(s):  
Yu Wang ◽  
Fang Wang ◽  
Yan Qu ◽  
Peng Wang ◽  
Ding Ding Yang ◽  
...  
Keyword(s):  
Heat Dissipation ◽  
Operating Temperature ◽  
Relative Energy ◽  
Small Scale ◽  
Refrigeration System ◽  
Cooling Plate ◽  
Variable Flow ◽  
Scale Variable ◽  
Flow Control System ◽  
Scale Data

This paper presents a small-scale variable flow refrigeration system for data cabinets, taking server’s CPU cooling plate on heat dissipation effect of liquor evaporative cooling and variable flow control system, to analyze the possibility of implementation of variable flow cooling scheme. The experimental results showed that: variable flow cooling of server’s CPU cooling plate effect is obvious, CPU operating temperature is more stable, the temperature inside the cabinet is more evenly distributed. This method is not only conducive to heat dissipation of more than one server chassis, but also in small-scale data cabinets. With workstation consumption analysis, the relative energy consumption of air-conditioned room reduced a lot.

scholarly journals Development of Multi use Refrigeration System

2019 ◽  
Vol 8 (2) ◽  
pp. 2387-2390
Keyword(s):  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Point Of View ◽  
Small Scale ◽  
Refrigeration Cycle ◽  
Refrigeration System ◽  
Conservation Of Energy ◽  
Heating And Cooling ◽  
Vapour Compression

Conservation of energy is the important factor from global point of view. Waste heat recovery has become significantly necessary and instant effort should be made to conserve this waste energy. Presently the refrigerator system rejects a lot of heat through condenser. This heat can be used for a variety of useful purposes. A multiuse refrigeration setup has been developed in which, both heating and cooling will be done simultaneously with the help of single vapour compression refrigeration cycle. It has a waste heat recovery system from the compressor for heating effect. Here without disturbing refrigeration cycle, the waste heat energy is used for useful work. The study has shown that such a system is technically feasible and economically viable. This concept has a scope of applications in variety of products such as air conditioners, freezers, water coolers and small scale refrigeration plants. This project leads to hybrid heating and cooling application with same vapour compression refrigeration system

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