A hybrid batch distillation/membrane process for high purification part 1: Energy efficiency and separation performance study for light impurities removal

Abstract This study investigates the effectiveness of different energy retrofitting techniques and examines the impact of employing those methods on energy consumption of existing residential buildings. Based on the research findings, the most effective and practical method of retrofitting has been proposed in order to improve energy efficiency of existing buildings. In order to achieve this goal, an existing residential building has been simulated in FirstRate 5 software so as to determine the existing thermal performance of the building. Afterwards, considering sustainable design principles, different insulation layers, glazing, and construction materials have been employed to conduct a comprehensive thermal performance study. Based on the research outcomes, the best technique for increasing energy efficiency of existing buildings and reducing their environmental impact and footprint has been identified and proposed for practical purposes.

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An Energy-Efficiency, Performance Study of, Vacuum Insulation Panels

Journal of Cellular Plastics ◽

10.1106/mwc6-vqtg-4h4m-3cdq ◽

2000 ◽

Vol 36 (6) ◽

pp. 441-450 ◽

Cited By ~ 10

Author(s):

Wei-Han Tao ◽

Chih-Chen Chang ◽

Jian-Yuan Lin

Keyword(s):

Energy Efficiency ◽

Performance Study ◽

Vacuum Insulation ◽

Efficiency Performance

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Performance Study of DC Compressor for Automotive Air Conditioning System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.614-615.674 ◽

2012 ◽

Vol 614-615 ◽

pp. 674-677

Author(s):

Nasution Henry ◽

M.H.Z. Yamani ◽

K. Sumeru

Keyword(s):

Energy Efficiency ◽

Direct Current ◽

Electric Motor ◽

Air Conditioning ◽

Engine Speed ◽

Cooling Capacity ◽

Performance Study ◽

Air Conditioning System ◽

Automotive Air Conditioning ◽

Automotive Air Conditioning System

The automotive air conditioning compressor (AAC) is belt-driven by the engine. The compressor speed is directly proportional to the engine speed. Therefore, the cooling capacity will vary as the engine speed changes. To meet the air conditioning (AC) demand, the compressor continually cycles on and off. In the research, the compressor of the AAC is driven by an electric motor which in turn is operated by electrical battery (12 volt). The use of direct current compressor (DCC) is seen as a solution of the existing system. Using the proposed system, DCC gets significant improvements in energy efficiency. Compared with AAC system, the energy conservation effect is about 77.5% to 86.35%.

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Comparative Control Study of a High-Purity Ternary Batch Distillation

Chemical Product and Process Modeling ◽

10.2202/1934-2659.1174 ◽

2008 ◽

Vol 3 (1) ◽

Cited By ~ 2

Author(s):

P. V. Radha Krishna Adari ◽

Amiya K Jana

Keyword(s):

High Purity ◽

Distillation Column ◽

Open Loop ◽

Batch Distillation ◽

Performance Study ◽

Proportional Integral ◽

Start Up ◽

Control Schemes ◽

Loop Dynamics ◽

Gain Scheduled

This paper presents a comparative closed-loop performance study on a multicomponent batch distillation column that produces high-purity distillate product. Initially, the distillation model representing a ternary system of cyclohexane-toluene-chlorobenzene has been simulated to observe the open-loop dynamics at the start-up as well as production phase. The next three control schemes, namely classical proportional integral (PI) controller, nonlinear proportional integral (NLPI) control strategy and gain-scheduled proportional integral (GSPI) law, have been designed and applied on the simulated distillation column. Numerical experiments based on servo and regulatory tests show that the GSPI algorithm provides relatively better results than the other two PIs.

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