scholarly journals A Comparative Study of Various Fuel for Newly Optimized Onboard Fuel Processor System under the Simple Heat Exchanger Network

2014 ◽  
Vol 52 (6) ◽  
pp. 720-726 ◽  
Author(s):  
Ikhwan Jung ◽  
Chansaem Park ◽  
Seongho Park ◽  
Jonggeol Na ◽  
Chonghun Han
Keyword(s):  
Heat Exchanger ◽  
Comparative Study ◽  
Heat Exchanger Network ◽  
Fuel Processor ◽  
Fuel Processor System

Counterflow Heat Exchanger Model for Thermal Management of a Compact Catalytic Fuel Processor System

2005 ◽  
Author(s):  
Amit Dhingra ◽  
Hong G. Im
Keyword(s):  
Heat Exchanger ◽  
Thermal Management ◽  
Control Flow ◽  
Design Parameters ◽  
Efficient Manner ◽  
Fuel Processor ◽  
Catalytic Material ◽  
Low Efficiency ◽  
Fuel Processor System ◽  
Oxidation Reactor

Recent progress in the fuel cell technology has attracted research interests in providing hydrogen in a safe and efficient manner. One of viable approaches is to develop on-board catalytic fuel processors which converts higher hydrocarbon fuels into hydrogen. While this is a promising method and the level of catalytic material development is mature, the compact fuel processor system suffers from relatively low efficiency primarily due to the large surface-to-volume ratio causing excessive heat loss to the ambient. In this paper, a systematic modeling approach is presented as an effective tool to undertake extensive parametric study to identify crucial design parameters to accomplish optimal thermal management of the fuel processor system. By adopting a canonical counterflow heat exchanger system, effects of key system parameters, such as reactant and control flow rates, and inlet temperatures, on the system efficiency, conversion, and reactive length are investigated. The model is applied to a partial oxidation reactor and results are discussed.

scholarly journals Heat Exchanger Network Retrofit of an Oleochemical Plant through a Cost and Energy Efficiency Approach

2021 ◽  
Vol 5 (2) ◽  
pp. 17
Author(s):  
Valli Trisha ◽  
Kai Seng Koh ◽  
Lik Yin Ng ◽  
Vui Soon Chok
Keyword(s):  
Energy Consumption ◽  
Heat Exchanger ◽  
Cost Effective ◽  
Capital Cost ◽  
Global Market ◽  
Annual Saving ◽  
Heat Exchanger Network ◽  
First Case ◽  
Payback Time ◽  
Better Than

Limited research of heat integration has been conducted in the oleochemical field. This paper attempts to evaluate the performance of an existing heat exchanger network (HEN) of an oleochemical plant at 600 tonnes per day (TPD) in Malaysia, in which the emphases are placed on the annual saving and reduction in energy consumption. Using commercial HEN numerical software, ASPEN Energy Analyzer v10.0, it was found that the performance of the current HEN in place is excellent, saving over 80% in annual costs and reducing energy consumption by 1,882,711 gigajoule per year (GJ/year). Further analysis of the performance of the HEN was performed to identify the potential optimisation of untapped heating/cooling process streams. Two cases, which are the most cost-effective and energy efficient, were proposed with positive results. However, the second case performed better than the first case, at a lower payback time (0.83 year) and higher annual savings (0.20 million USD/year) with the addition of one heat exchanger at a capital cost of USD 134,620. The first case had a higher payback time (4.64 years), a lower annual saving (0.05 million USD/year) and three additional heaters at a capital cost of USD 193,480. This research has provided a new insight into the oleochemical industry in which retrofitting the HEN can further reduce energy consumption, which in return will reduce the overall production cost of oleochemical commodities. This is particularly crucial in making the product more competitive in its pricing in the global market.

scholarly journals Modelling and real-time optimisation of a heat-exchanger network

2020 ◽  
Vol 53 (2) ◽  
pp. 11780-11785
Author(s):  
María P. Marcos ◽  
José Luis Pitarch ◽  
César de Prada
Keyword(s):  
Heat Exchanger ◽  
Real Time ◽  
Heat Exchanger Network
Sign in / Sign up

Export Citation Format

Share Document