Collector Area and Storage Tank Volume Size in the Solar Air Conditioning System: Case of Ouargla Town in Algeria

2018 ◽  
pp. 1505-1507
Author(s):  
Yacine Marif ◽  
Mohammed Mustapha Belhadj ◽  
Moussa Zerrouki
Keyword(s):  
Storage Tank ◽  
Air Conditioning ◽  
Air Conditioning System ◽  
And Storage ◽  
Volume Size

Power Reduction in Air Conditioning by Means of Off-Peak Operation and Coolness Storage

1974 ◽  
Vol 96 (3) ◽  
pp. 165-168
Author(s):  
J. C. Dudley ◽  
S. I. Freedman
Keyword(s):  
Air Conditioning ◽  
Thermodynamic Cycle ◽  
Power Reduction ◽  
Performance Data ◽  
Air Conditioning System ◽  
Evaluation Of Performance ◽  
Chilled Water ◽  
Conventional Systems ◽  
And Storage

An original air-conditioning system was developed which requires considerably less power than conventional systems while providing identical cooling and dehumidification. The 50 percent (depending on application) power reduction is accomplished by off-peak compressor operation and storage of chilled water. The full cooling and dehumidification is accomplished by means of a new thermodynamic cycle involving two evaporators with an intermediate condenser operating with the stored chilled water. The system was built, instrumented, and operated reliably. Evaluation of performance data confirmed the theory and verified the power reduction, cooling, and dehumidification performance calculations.

Design and Implementation of an Air-Conditioning System with Storage Tank for Load Shifting

1987 ◽  
Vol 2 (4) ◽  
pp. 973-979 ◽  
Author(s):  
Yuan-Yih Hsu ◽  
Chi-Jui Wu ◽  
Kan-Lee Liou ◽  
P. S. Sung ◽  
S. K. Peng ◽  
...  
Keyword(s):  
Storage Tank ◽  
Air Conditioning ◽  
Load Shifting ◽  
Air Conditioning System ◽  
Design And Implementation

Dynamic Character Study on Cool Thermal Energy Storage Process of Storage Tank for Air-Conditioning System

2012 ◽  
Vol 433-440 ◽  
pp. 1052-1056
Author(s):  
Xiao Yan Li ◽  
Yan Yan Wu ◽  
Zhi Fen Cen
Keyword(s):  
Energy Storage ◽  
Flow Rate ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Storage Tank ◽  
Air Conditioning ◽  
Heat Transfer Fluid ◽  
Inlet Temperature ◽  
Air Conditioning System ◽  
Appreciable Change

Mathematical model of the storage tank for air-conditioning condition was established, the dynamics character of a new type of PCM in the storage tank was studied., and the model was numerical simulated by the method of heat capacity. Effects of flow rate and inlet temperature of heat transfer fluid (HTF) on charging process of the storage tank were obtained. The results show that no appreciable change in the total cold thermal energy storage is observed for the increase of flow rate, whereas the improvement of the total cold thermal energy storage due to the decrease of inlet temperature is detectable, when cold storage is finished during low peak of electricity, the best inlet temperature of storage tank is at 2°C-3°C.

scholarly journals Fabrication and Performance Evaluation of Cold Thermal Energy Storage Tanks Operating in Water Chiller Air Conditioning System

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4159
Author(s):  
Xuan Vien Nguyen
Keyword(s):  
Heat Transfer ◽  
Cold Storage ◽  
Storage Tank ◽  
Air Conditioning ◽  
Thermal Storage ◽  
Hot Water ◽  
Operating Costs ◽  
Heat Transfer Fluid ◽  
Storage Tanks ◽  
Air Conditioning System

In this study, cold and thermal storage systems were designed and manufactured to operate in combination with the water chiller air-conditioning system of 105.5 kW capacity, with the aim of reducing operating costs and maximizing energy efficiency. The cold storage tank used a mixture of water and 10 wt.% glycerin as a phase-change material (PCM), while water was used as heat transfer fluid (HTF). The cold storage heat exchanger was made of polyvinyl chloride (PVC). On the other hand, the thermal storage tank used water as the storage fluid with a capacity of 50 L of hot water per hour. The thermal storage did not use a pump for water transfer through the heat exchanger, so as to save energy and operating costs. In this paper, the operating parameters of the cold and thermal storage tanks are shown according to the results of experimental research, including the temperatures of cooling and heating load, heat transfer fluid, and cold storage material during the discharge process, as well as the discharge duration. The system assisted the air conditioner in cooling the internship workshop space at the university with an area of 400 m2, contributing to a remarkable reduction in air-conditioning system operating costs during the daytime. Furthermore, the system recovered waste heat from the compressor of the water chiller, and a thermal storage system was successfully built and operated, providing 50 L of hot water at a temperature of 60 °C per hour to serve the everyday needs of school students. This design was suitable for the joint operation of cold and thermal storage tanks and the water chiller air-conditioning system for cooling and heating applications.

scholarly journals Numerical Analysis of a Thermal Storage Tank as Part of a 20 kW Solar/gas Adsorption Air Conditioning System

2014 ◽  
Vol 57 ◽  
pp. 2600-2608 ◽  
Author(s):  
Cristian Adolfo ◽  
Gilberto A.A. Moreira ◽  
Belkacem Zeghmati ◽  
Antonio P.F. Leite
Keyword(s):  
Numerical Analysis ◽  
Storage Tank ◽  
Air Conditioning ◽  
Gas Adsorption ◽  
Thermal Storage ◽  
Air Conditioning System

Design and Implementation of an Air-Conditioning System with Storage Tank for Load Shifting

1987 ◽  
Vol PER-7 (11) ◽  
pp. 40-40
Author(s):  
Yuan-Yih Hsu ◽  
Chi-Jui Wu ◽  
Kan-Lee Liou ◽  
P. S. Sung ◽  
S. K. Peng ◽  
...  
Keyword(s):  
Storage Tank ◽  
Air Conditioning ◽  
Load Shifting ◽  
Air Conditioning System ◽  
Design And Implementation

Simulation of an Air-Cooled Solar-Assisted Absorption Air Conditioning System

2001 ◽  
Author(s):  
L. H. Alva Solari ◽  
J. E. González
Keyword(s):  
Storage Tank ◽  
Air Conditioning ◽  
Lithium Bromide ◽  
Thermal Storage ◽  
Ambient Air ◽  
Absorption System ◽  
Air Conditioning System ◽  
Component Design ◽  
Dynamic Cooling ◽  
Cooling Loads

Abstract This paper investigates the technical feasibility of using a compact, air-cooled, solar-assisted, absorption air conditioning system in Puerto Rico and similar regions. Computer simulations were conducted to evaluate the system’s performance when subjected to dynamic cooling loads. Within the computer model, heat and mass balances are conducted on each component of the system, including the solar collectors, thermal storage tank, the air-cooled condenser, and the air-cooled absorber. Guidance on component design and insight into the effects of such operating factors as ambient air temperature were gained from exercising the simulation model. Comparisons are made with an absorption air conditioning system that uses a cooling tower instead of air-cooled components. The particular absorption system of study is one that uses lithium bromide and water as the absorbent and refrigerant, respectively. The heat input to the absorption system generator is provided by an array of flat plate collectors that are coupled to a thermal storage tank. Systems having nominal cooling capacities of 10.5, 14, and 17.5 kW were considered. Useful information about the number of collectors needed, storage tank volume and efficiency of the overall system is presented.

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