Analysis of Energy-Saving Effects on Absorption Air-Conditioning Systems by means of Cooling Water Flow Rate Control

2000 ◽  
Vol 2000.10 (0) ◽  
pp. 378-381
Author(s):  
Shigeru KAWASAKI ◽  
Hiroshi ISHINO ◽  
Akinari TAKEDA
Keyword(s):  
Energy Saving ◽  
Water Flow ◽  
Flow Rate ◽  
Rate Control ◽  
Air Conditioning ◽  
Water Flow Rate ◽  
Cooling Water ◽  
Cooling Water Flow Rate ◽  
Air Conditioning Systems ◽  
Flow Rate Control

Effect of the cooling water flow rate to control self-heating of coal in a cylindrical reactor heated by a hot plate heater

2020 ◽  
Author(s):  
Sofi Hesti Fathia ◽  
Inkasandra Faranisa Kolang ◽  
Ricky Putro Satrio Wicaksono ◽  
Achmad Riadi ◽  
Yulianto Sulistyo Nugroho
Keyword(s):  
Water Flow ◽  
Flow Rate ◽  
Water Flow Rate ◽  
Cooling Water ◽  
Hot Plate ◽  
Self Heating ◽  
Cooling Water Flow Rate ◽  
Cylindrical Reactor ◽  
Plate Heater

Experimental Study on the Desalination System Using Humidification-Dehumidification Technology

2020 ◽  
Vol 1008 ◽  
pp. 177-185
Author(s):  
Hamed Abbady ◽  
Mahmoud Salem Ahmed ◽  
Hamdy Hassan ◽  
A.S.A. Mohamed
Keyword(s):  
Water Temperature ◽  
Water Flow ◽  
Flow Rate ◽  
Water Flow Rate ◽  
Cooling Water ◽  
Operating Conditions ◽  
Outlet Temperature ◽  
Major Objective ◽  
Cooling Water Flow Rate ◽  
Output Ratio

In this paper, an experimental work studies the principal operating parameters of a proposed desalination process using air humidification-dehumidification method. The major objective of this work is to determine the humid air behavior through the desalination system. Different operating conditions including the effect of the water temperature at the entry to the humidifier, the ratio of the mass of water to the air, the air/water flow rate, and cooling water at entry the dehumidifier on the desalination performance were studied. The results show that the freshwater increases with increasing the water temperature at the inlet of the humidifier, the ratio of the mass of water to air, and cooling water flow rate in the dehumidifier. Cooling water outlet temperature at the condenser increases with increasing the water temperature at humidifier inlet. Also, it decreases as increasing cooling water flow rate while the ratio of the mass of water to air achieves the highest productivity and gained output ratio (GOR). The achieved mass ratio (MR) is 4.5 and the mass flow rate of air is 0.8 kg/min.

scholarly journals Dynamics of feed water flow rate control system with low- noise regulator

2017 ◽  
Vol 16 (1) ◽  
pp. 75
Author(s):  
E. G. Berestovitskiy ◽  
P. I. Kizilov ◽  
A. N. Kruchkov ◽  
N. V. Pialov
Keyword(s):  
Control System ◽  
Water Flow ◽  
Flow Rate ◽  
Rate Control ◽  
Water Flow Rate ◽  
Low Noise ◽  
Feed Water ◽  
Flow Rate Control

Experimental Study of Solar Pond Coupled With Forced Circulation Crystallizer as Major Stages of Proposed Zero Discharge Desalination Process

2013 ◽  
Vol 6 (2) ◽  
Author(s):  
Farshad Farahbod ◽  
Sara Farahmand
Keyword(s):  
Water Flow ◽  
Flow Rate ◽  
Water Flow Rate ◽  
Cooling Water ◽  
Treated Wastewater ◽  
Forced Circulation ◽  
Solar Pond ◽  
Cooling Water Flow Rate ◽  
Salt Crystals ◽  
Zero Discharge

Pretreatment, solar pond (SP), and forced circulation crystallizer (FCC) are the basic stages of one option to provide the goals of zero discharge desalination (ZDD) process. This work represents the performance of a solar pond that is coupled with forced circulation crystallizer as second and third stages of proposed zero discharge desalination process. The purpose of ZDD in this paper is gathering fresh water and saline crystals from effluent wastewater of the desalination unit of Mobin petrochemical complex. So, the SP unit is constructed after the pretreatment unit to concentrate the treated wastewater to about 20 wt. % as a suited feed for the FCC unit. Effects of solar insolation rate are investigated experimentally, during a year. In addition, the effect of cooling water flow rate of FCC on quality of effluent stream from SP as feed crystallizer is studied in this paper. The experimental results show the maximum evaporation rate from SP is obtained 5 l/(m2·d) when the insolation rate was about 2.5 × 104 kJ/(m2·d). Experiments show the suitable range of crystals growth (710 μm to 830 μm) in FCC is occurred when the cooling water flow rate in condenser is 9 kg/min. The size and the color of produced salt crystals will be optimized in this flow rate and energy consumption is measured as 6.98 kW·h.

Robust Process Design for Continuous Casting Based on Numerical Simulation and Experimental Study

2012 ◽  
Vol 246-247 ◽  
pp. 341-345
Author(s):  
Shi Lun Zuo
Keyword(s):  
Numerical Simulation ◽  
Continuous Casting ◽  
Water Flow ◽  
Flow Rate ◽  
Casting Speed ◽  
Continuous Casting Machine ◽  
Water Flow Rate ◽  
Casting Machine ◽  
Cooling Water ◽  
Cooling Water Flow Rate

In order to improve design efficiency and reduce design cost, a new method combining numerical simulation with experimental verification was proposed in this study. Firstly, controllable process parameters such as continuous casting speed and cooling water flow rate, are robustly designed according to the numerical simulation results of flow field, process experiments were subsequently done on a newly developed continuous casting machine of lead slice, then the robust optimal design for the continuous casting process were gained. The results show that the cooling water flow significantly affects axial thickness of the lead slice, while the casting speed determines mainly its circumferential thickness. When the casting speed is between 280L/min and 320L/min, and the cooling water flow rate is between 950r/min and 1100r/min at the same time, the axial thickness and circumferential thickness can been kept respectively in1.0±0.03mm and 1.0±0.1mm, which meet the robust design requirements.

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