نتایج جستجو برای: Pinch Technology

تعداد نتایج: 471369  

Journal: :international journal of environmental research 2009
a. ataei m.h. panjeshahi m. gharaie n. tahouni

temperature restrictions on aqueous effluents dictate that streams with a temperature higher than the permitted level needed to pass through cooling systems to reduce the effluent temperature before discharge. in this study, by considering the grouping design rules based on pinch technology, an optimum design for a distributed effluent cooling system, has been developed. a counter-flow wet cool...

Journal: :gas processing 0
sara kafashian faculty of mechanical engineering, kntoosi university of technology, tehran, iran gholam reza salehi mechanical engineering faculty, islamic azad university, central branch, of tehran, tehran, iran majid amidpour faculty of mechanical engineering, kntoosi university of technology, tehran, iran

for energy saving retrofit projects, its economics are usually evaluated in terms of capital investment and payback time. the capital investment is in direct relation to the total heat recovery area of the network and the payback time factor is base on both the area and the energy savings. the debottlenecking is an increased throughput, which can be profitable in economic sense. the combination...

Journal: :نشریه دانشکده فنی 0
دکتر محمد حسن پنجه شاهی مهندس مهران غفوریان صدیق

retrofit of heat exchanger networks for energy saving and/or debottlenecking is one of important aspects of process engineering. pinch technology, as the most efficient tool for the analysis of these networks, has been applied to hundreds of such projects and shown satisfactory results. however, all the existing methods for debottlenecking, using pinch technology, are either based on assumed he...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2001
mohammad hassan panjeh shahi mohammad mahdi nouzari

a new retrofit targeting procedure, based on pinch technology has been developed. the new procedure considers existing structure of a given network and finds the most compatible configuration with the network. to achieve this aim, the procedure uses a linear programming technique that maximize the compatibility. good compatibility between old and new networks helps to make the best use of capit...

2013
Techniques Deepa

Pinch Analysis is a methodology for minimizing energy consumption of chemical plant by maximizing the utilization of hot and cold utilities available within the process, thereby reducing the use of external utilities. It is also known as process integration, heat integration, energy integration or Pinch technology. Pinch technology is applied on various process flow diagrams from chemical indus...

2014
Shuya Chen Shih-Ching Yeh Margaret McLaughlin Albert Rizzo Carolee Winstein

Incorporating the virtual reality technology into stroke rehabilitation has been proved to be effective in improving upper extremity function for stroke survivors. However, without haptic feedback, the recovery of pinch skill will not be sufficient for daily activities. Pinch skill is an important component for hand manipulation. Impaired pinch skill affects dexterity function after stroke. Thi...

Journal: :applied biotechnology reports 0
peyvand amiri university institute of applied science, malek ashtar university of technology, esfahan, iran daryush arabian university institute of applied science, malek ashtar university of technology, esfahan, iran

in this paper, to address the effect of reactor performance and configuration of biodiesel production on subsequent process parameters (including mass & energy consumption, required facilities etc.) two diverse biodiesel production processes (from plant oil) were implemented/designed using aspen hysys v7.2. two series reactors were taken into account in these designs where in the first and seco...

2012
B. Jabbari N. Tahouni

In this study the integration of an absorption heat pump (AHP) with the concentration section of an industrial pulp and paper process is investigated using pinch technology. The optimum design of the proposed water-lithium bromide AHP is then achieved by minimizing the total annual cost. A comprehensive optimization is carried out by relaxation of all stream pressure drops as well as heat excha...

Journal: :international journal of environmental research 2013
f. joda g.t. polley n. tahouni m.h. panjeshahi

pinch technology is one of the best methods for designing a multi stream heat exchanger(mshe) through a network; current pinch-based methods, however, lead to a larger and more complicateddesign problems. the major drawback of the current methods is they result in designs having more individual mshe sections than essential, correspond to the enthalpy intervals on temperature vs. enthalpy diagra...

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