scholarly journals Analysis and Research on Ice Storage and Water Storage Air Conditioning System of an Electric Power Building

2021 ◽  
Vol 2141 (1) ◽  
pp. 012010
Author(s):  
M L He ◽  
Y Q Hu ◽  
M M Zhang ◽  
Y X Wu ◽  
W J Zhang
Keyword(s):  
Electric Power ◽  
Distribution System ◽  
Air Conditioning ◽  
Water Storage ◽  
Ice Storage ◽  
Heat Sources ◽  
Air Conditioning System ◽  
Actual Operation ◽  
Power Dispatching ◽  
Transmission And Distribution

Abstract The air conditioning system of ice storage and water storage has been applied in many practical projects. This paper introduces the air conditioning system form of Fuyang Electric Power Dispatching Building. The design condition of cold and heat sources and its transmission and distribution system is also introduced. In addition, this paper also collects and analyses the data of the chillers in actual operation. The results show that the system runs steadily and accords with the design conditions.

Chilled Energy Storage for Air-Conditioning System of Buildings

2014 ◽  
Vol 496-500 ◽  
pp. 1020-1023
Author(s):  
Xiao Jian Shu
Keyword(s):  
Energy Storage ◽  
Economic Performance ◽  
Energy Cost ◽  
Air Conditioning ◽  
Water Storage ◽  
Ice Storage ◽  
Zero Temperature ◽  
Air Conditioning System ◽  
Chilled Water ◽  
Storage Technologies

Due to higher energy consumption for air-condition system and higher energy cost for building, the combination between peak-valley power price and chilled energy storage is provided and paid more and more attention. This paper introduced main chilled energy storage technologies and analyzed their economic performance, chilled water storage and ice storage both have good performance, but they fit for difference conditions, for chilled water storage, it doesnt need to add chiller for below zero temperature and fits for energy saving reform, and ice storage can meet the need of new air-conditioning system, which supplies a new application direction for energy cost saving operation in building.

Discussion to Energy-Saving Design of the Air-Conditioning System

2013 ◽  
Vol 361-363 ◽  
pp. 444-447
Author(s):  
Qian Wang ◽  
Rui Li
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Distribution System ◽  
Air Conditioning ◽  
Building Energy ◽  
Design Parameters ◽  
Building Energy Efficiency ◽  
Air Conditioning System ◽  
Transmission And Distribution

Air conditioning energy saving is of great significance for building energy efficiency, reduce air conditioning energy consumption can reduce most of the building energy consumption, achieve the purpose of saving energy. This article analyzed and discussed the choice of indoor design parameters, the choice of cold and heat source and the design of the transmission and distribution system.

Optimal Control Strategy for Ice-Storage System Based on Hourly Dynamic Load Simulation

2013 ◽  
Vol 671-674 ◽  
pp. 2515-2519
Author(s):  
Xue Mei Wang ◽  
Zhen Hai Wang ◽  
Xing Long Wu
Keyword(s):  
Optimal Control ◽  
Air Conditioning ◽  
Control Strategies ◽  
Storage System ◽  
Simulation Software ◽  
Ice Storage ◽  
Optimal Control Strategy ◽  
Air Conditioning System ◽  
Energy Plus ◽  
Load Simulation

This project aims to study the optimal control model of the ice-storage system which is theoretically close to the optimal control and also applicable to actual engineering. Using Energy Plus, the energy consumption simulation software, and the simple solution method of optimal control, researchers can analyze and compare the annual operation costs of the ice-storage air-conditioning system of a project in Beijing under different control strategies. Researchers obtained the power rates of the air-conditioning system in the office building under the conditions of chiller-priority and optimal contro1 throughout the cooling season. Through analysis and comparison, they find that after the implementation of optimal control, the annually saved power bills mainly result from non-design conditions, especially in the transitional seasons.

scholarly journals Time for a break

1988 ◽  
Vol 21 (4) ◽  
pp. 237-246
Author(s):  
D. J. Van Brink
Keyword(s):  
Electric Power ◽  
Distribution System ◽  
Structural Damage ◽  
Distribution Systems ◽  
Technical Aspects ◽  
Transmission And Distribution

The following paper recounts the loss of supply and subsequent restoration of the Bay of Plenty Electric Power Board' s sub transmission and distribution systems following the advent of the Edgecumbe earthquake of 2 March 1987. The paper details the effects on the Board's customers and staff, restoration procedures, and matters relating to the restoration of supply and repair of the distribution system. The emphasis is more on the operational and organisational aspects of the event, rather than being a report of structural damage and remedial repairs. Technical aspects of this sort are dealt with in greater detail by other organisations.

A multi-objective optimization operation strategy for ice-storage air-conditioning system based on improved firefly algorithm

2021 ◽  
pp. 014362442110455
Author(s):  
Xinwei Zhou ◽  
Junqi Yu ◽  
Wanhu Zhang ◽  
Anjun Zhao ◽  
Min Zhou
Keyword(s):  
Energy Saving ◽  
Economic Benefit ◽  
Air Conditioning ◽  
Firefly Algorithm ◽  
Optimal Operation ◽  
Ice Storage ◽  
Operation Strategy ◽  
Multi Objective Optimization ◽  
Air Conditioning System ◽  
Improved Firefly Algorithm

Reasonable distribution of cooling load between chiller and ice tank is the key to realize the economical and energy-saving operation of ice-storage air-conditioning (ISAC) system. A multi-objective optimization model based on improved firefly algorithm (IFA) was established in this study to fully exploit the energy-saving potential and economic benefit of the ISAC system. The proposed model took the partial load rate of each chiller and the cooling ratio of the ice tank as optimization variables, and the lowest energy consumption loss rate and the lowest operating cost of the ISAC system were calculated. Chaotic logic self-mapping was used to initialize population to avoid falling into local optimum, and Cauchy mutation was used to increase the population’s diversity to improve the algorithm’s global search ability. The experimental results show that compared with the operation strategy based on constant proportion, particle swarm optimization (PSO) algorithm, and firefly algorithm (FA), the optimal operation strategy based on IFA can achieve more significant energy-saving and economic benefits. Meanwhile, the convergence accuracy and stability of the algorithm are significantly improved. Practical application: The optimized operation strategy of the ice-storage air-conditioning system can reduce energy loss and operating costs. The traditional operation strategies have the problems of low optimization precision and poor optimization effect. Therefore, this study presents an optimal operation strategy based on IFA. The convergence accuracy and stability of the algorithm are increased after the algorithm is improved. The operation strategy can get the maximum energy-saving effect and economic benefit of the ISAC system.

A New Air-Conditioning System with Chilled Water Storage

2013 ◽  
Vol 405-408 ◽  
pp. 2964-2968 ◽  
Author(s):  
Hu Lin ◽  
Xin Hong Li ◽  
Peng Sheng Cheng ◽  
Bu Gong Xu
Keyword(s):  
Economic Performance ◽  
Air Conditioning ◽  
Storage System ◽  
Peak Load ◽  
Water Storage ◽  
Engineering Application ◽  
Load Shifting ◽  
Air Conditioning System ◽  
Storage Technology ◽  
Chilled Water

For the purpose of grid peak load shifting, chilled water storage has been paid more and more attentions to integrated with air-conditioning system. In this paper, a new air conditioning system with directly chilled water storage is given. With peak-valley Price, cost for power consumption can be saved 15%-20% by coordinated operation between chilled water storage system and air conditioning system. By sensitivity analysis of system economic performance on ratio of peak price to valley price, it is revealed that with much higher ratio of peak price to valley price, not only system economic performance can seldom be improved, but also chilled water storage is restricted for engineering utilization. This paper supplies theory reference for engineering application of chilled water storage technology.

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