Synthesis of heat exchange networks: A non-iterative approach

Cena, Vincenzo; Mustacchi, C.; Natali, Fabrizio

doi:10.1016/0009-2509(77)80056-0

Cited by 13 publications

(6 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The first is one of the earliest published, using a method based on the "assignment algorithm" in linear programming. Three publications have appeared based on this approach (Kesler and Parker, 1969;Kobayashi, Umeda and Ichikawa, 1971;Cena, Mustacchi and Natali, 1977).…”

Section: Simultaneous M a T C H Decision Algorithmsmentioning

confidence: 99%

“…In the assignment algorithm approach, every stream is first partitioned into a set of usually quite small substreams, each substream havinga heat content of"Q" units. Keslerand Parker (1969) and Cena, Mustacchi and Natali (1977) require this partitioning to be sequential (equivalent to no stream splitting), whereas Kobayashi, Umeda and Ichikawa (1971) permit parallel partitioning (equivalent to stream splitting). "Q" is chosen so every stream is partitioned, to an adequate approximation, into an integer number of substreams.…”

Section: Simultaneous M a T C H Decision Algorithmsmentioning

confidence: 99%

See 1 more Smart Citation

A review of process synthesis

Nishida¹,

Stephanopoulos²,

Westerberg³

1981

AIChE Journal

381

148

View full text Add to dashboard Cite

Process synthesis is the step in design where the chemical engineer selects the component parts and how to interconnect them to create his flowsheet. This paper reviews the rapidly growing process synthesis literature of over 190 articles, almost all of which have been produced in the last decade. The paper first introduces the nature of the synthesis problem and outlines the variety of approaches which have appeared to solve aspects of it. The problems include developing a representation, a means to evaluate alternatives, and a strategy to search the almost infinitely large space of possible alternatives. As the article demonstrates, effective solutions are very dependent on the nature of the synthesis problem being addressed. The article covers in detail the following five synthesis topics: chemical reaction paths, separation systems, heat exchanger networks, complete flowsheets, and control systems. Readily apparent are the development of industrially significant insights to aid in the design of heat exchanger networks. Reasonable progress exists in the synthesis of separation systems based on nearly ideal distillation technology and in the development of computer aids by chemists for reaction path synthesis leading to desired complex organic molecules. More work is needed for the remaining areas to become industrially significant.

show abstract

Section: Simultaneous M a T C H Decision Algorithmsmentioning

confidence: 99%

Section: Simultaneous M a T C H Decision Algorithmsmentioning

confidence: 99%

A review of process synthesis

Nishida¹,

Stephanopoulos²,

Westerberg³

1981

AIChE Journal

381

148

View full text Add to dashboard Cite

show abstract

“…Such tasks can be performed by transferring heat from hot to cold process streams through stream/stream matches and, if needed, using heating/cooling utilities to meet the target temperatures. Early works introducing new methods for the design of HENs were published in the 1970s. − Good HEN designs permit to obtain significant energy and capital cost savings. In the late 1970s and 1980s, a pair of HEN design targets has been adopted to get such cost savings.…”

Section: Introductionmentioning

confidence: 99%

“…Assume that heat exchanger e ∈ E h is initially performed by hot stream h, i.e., XFH e,h = 1. As stated by eqs II.2 and II 3,. exchanger e has no direct predecessors at all.…”

mentioning

confidence: 99%

Novel Mathematical Approaches for the Structural Synthesis of Heat Exchanger Networks

Cerdá

Cafaro

2022

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

This work presents new systematic approaches for the synthesis of heat exchanger networks (HENs) relying on efficient optimization models. The basic idea consists of partitioning the process streams into a set of nonoverlapping substreams with variable temperatures ranges and exchanging heat among such hot and cold substreams. The problem objective is to synthesize the configuration of the HEN featuring either minimum utility usage or minimum total cost, even if stream splitting is required. First, a mixed-integer linear programming (MILP) model is introduced to systematically find the detailed structure of HENs reaching the minimum utility usage (MUU) target with the minimum number of units. Isothermal mixing of the stream branches is assumed, and a fixed minimum approach temperature (ΔT min ) is arbitrarily chosen. The model is then generalized to minimize the HEN total cost, including the capital cost, by considering the minimum approach temperature as a new problem variable. As a result, nonlinearities arise in the objective function, leading to a mixed-integer nonlinear (MINLP) formulation. The MINLP also includes nonlinear constraints when nonisothermal mixing is allowed. Both simultaneous approaches have been validated by efficiently solving 45 benchmark examples from the literature. Compared to previous contributions, savings of up to 37% in the total costs have been achieved.

show abstract

“…They suggested a set of heuristics that could be used to match the streams, but their heuristics did not always result in minimum-cost networks. Kesler and Parker (1969), Kobayashi et al (197I), and Cena et al (1977) formulated the problem in a more rigorous mathematical manner as an assignment problem in linear programming. However, the cost objective function based on the heat exchange surface area was both nonlinear and nonconvex and had to be approximated.…”

Section: Introductionmentioning

confidence: 99%

Studies in the heat integration of chemical process plants

Viswanathan

Evans

1987

AIChE Journal

View full text Add to dashboard Cite

A method for solving the problem of heat exchanger network synthesis in chemical process plants is presented based on the use of the outof-kilter algorithm. The method represents an extension of previous approaches based on network flow problem formulations. A new approach to overcome the constraints in forbidden-match problems, termed the dual stream approach, has been developed based on the use of a stream as both a hot and a cold stream. This approach results in considerable savings in utility costs in certain forbidden-match problems. An algorithm to deal with heating or cooling utilities that undergo temperature changes, termed non-point-temperature utilities, is presented using the transshipment model. The new algorithm determines the utility mass flow rates and pinch points accurately.

show abstract

Synthesis of heat exchange networks: A non-iterative approach

Cited by 13 publications

References 6 publications

A review of process synthesis

A review of process synthesis

Novel Mathematical Approaches for the Structural Synthesis of Heat Exchanger Networks

Studies in the heat integration of chemical process plants

Contact Info

Product

Resources

About