CHEMICAL ENGINEERING TRANSACTIONS
VOL. 56, 2017
A publication of
The Italian Association
of Chemical Engineering
Online at www.aidic.it/cet
Guest Editors: Jiří Jaromír Klemeš, Peng Yen Liew, Wai Shin Ho, Jeng Shiun Lim
Copyright © 2017, AIDIC Servizi S.r.l.,
ISBN 978-88-95608-47-1; ISSN 2283-9216
PoPA – SHARPS: A New Framework for Cost-Effective
Design of Hybrid Power Systems
Nor Erniza Mohammad Rozali*
,a
, Sharifah Rafidah Wan Alwi
b,c
, Wai Shin Ho
b,c
,
Zainuddin Abdul Manan
b,c
, Jiří Jaromír Klemeš
d
a
Department of Chemical Engineering, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak, Malaysia.
b
Process Systems Engineering Centre (PROSPECT), Research Institute on Sustainable Environment (RISE), Universiti
Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
c
Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
d
Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, H-1083 Budapest, Hungary
erniza.rozali@petronas.com.my
Development of Power Pinch Analysis (PoPA) for the design and optimisation of Hybrid Power Systems (HPS)
is steadily progressing. Even though PoPA has been developed for widespread applications in HPS design
analysis, the economic aspect still needs more attention. This work presents a new framework for the design of
a cost-effective HPS by incorporating PoPA with a cost-screening tool known as the Systematic Hierarchical
Approach for Resilient Process Screening (SHARPS). SHARPS which was originally developed to screen
various process changes options in water network is adapted to imbed cost analysis and renewable energy
(RE) technology screening in power network. Demonstration on an illustrative case study shows that the
proposed framework can provide the best HPS scheme considering the system efficiency, while satisfying the
desired payback period.
1. Introduction
Power Pinch Analysis (PoPA) has been among the next-generation of the insight-based graphical and algebraic
Process Integration tools. Following the development of earlier pinch analysis techniques, PoPA was initially
introduced to complement the relatively established modelling tools for the optimal planning and design of Hybrid
Power Systems (HPS). To date, PoPA has been developed for widespread applications including electricity
targeting and allocations (Mohammad Rozali et al., 2012), optimal sizing (Mohammad Rozali et al., 2014), load
shifting (Mohammad Rozali et al., 2015b), storage design (Mohammad Rozali et al., 2015c), and diesel plant
expansion (Mohammad Rozali et al., 2015a). Though PoPA could lead to optimal renewable energy (RE)
utilisation and electricity cost reduction, some RE generation technologies in HPS may be costly and thus affect
the economics.
Numerous researches on the design of HPS considering the economic analysis have been conducted. Ramli et
al. (2016) determined the best size for wind-solar hybrid system components based on the minimum cost of
energy production. The economic model was developed in HOMER software, using the net present cost (NPC)
and levelised cost of energy (COE). Stadler et al. (2016) formulated an optimal HPS design using a mixed
integer linear programming (MILP) to achieve the maximum cost benefits in the view of both the consumer and
the distribution network operator. The operating expenses have been successfully minimised while maximising
the self-sufficiency of the system. The economic feasibility of integrating hybrid solar thermal-PV with micro-
cogeneration system in a building was scrutinised by Romero Rodríguez et al. (2016) using TRNSYS software.
Life Cycle Cost Analysis for different system configurations was performed in order to establish the most optimal
solution with minimum energy consumption and emissions. Sensitivity analysis of costs has also been done by
the authors to address the continuous changing of renewable technologies costs.
The aforementioned works mostly focus on the finding of minimum system and energy costs, given a specific
technology of the RE. It has never been considered to screen various applicable RE generation technologies at
DOI: 10.3303/CET1756094
Please cite this article as: Mohammad Rozali N.E., Wan Alwi S.R., Ho W.S., Manan Z.A., Klemeš J.J., 2017, Popa-sharps: a new framework for
cost-effective design of hybrid power systems, Chemical Engineering Transactions, 56, 559-564 DOI:10.3303/CET1756094
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