**4. Conclusions**

This paper described a novel insight-based Pinch Analysis numerical technique for targeting the minimum cooling, heating and power for a centralised trigeneration system integrated with several industrial sites generating the same utilities. A summary of the contributions of this work is listed below:


The current work only considers non-intermittent centralised trigeneration system. It is envisioned that the TrigenSCA framework can be extended to cater for at least two other vital applications. First, it can be further developed for designing intermittent systems involving wind and solar energy. Secondly, it can be extended to consider transmission energy losses in Total Site system to achieve an actual value of utility in a trigeneration system.

**Supplementary Materials:** The following are available online at http://www.mdpi.com/1996-1073/12/6/1030/s1, Table S1: Problem Table Algorithm for Industrial Plant A, Table S2: Problem Table Algorithm for Industrial Plant B, Table S3: Problem Table Algorithm for Industrial Plant C, Table S4: Problem Table Algorithm for Industrial Plant D, Table S5: Multiple Utility Problem Table Algorithm for Industrial Plant A, Table S6: Multiple Utility Problem Table Algorithm for Industrial Plant B, Table S7: Multiple Utility Problem Table Algorithm for Industrial Plant C, Table S8: Multiple Utility Problem Table Algorithm for Industrial Plant D.

**Author Contributions:** Conceptualization, K.J., S.R.W.A., Z.A.M., J.J.K. and K.H.; methodology, K.J.; S.R.W.A., Z.A.M. and J.J.K.; formal analysis, K.J. and S.R.W.A.; investigation, K.J.; writing—original draft preparation, K.J.; writing—review and editing, S.R.W.A., Z.A.M., K.H. and J.J.K.; visualization, S.R.W.A., Z.A.M., K.H. and J.J.K.; supervision, K.H., S.R.W.A., Z.A.M. and J.J.K.; funding acquisition, S.R.W.A., Z.A.M., K.H. and J.J.K.

**Funding:** This research was funded by the Malaysia Ministry of Education (MOE), Fundamental Research Grant (FRGS) titled 'Integrated Industrial Site Planning for Minimising Resource Utilisation and Pollution' under vote number R.J130000.7809.4F918, Universiti Teknologi Malaysia Research University Fund under Vote Numbers Q.J130000.3509.05G96, Q.J130000.2509.19H34, Q.J130000.2508.17H16, and Q.J130000.2546.18H90; and Skim Latihan Akademik Bumiputera (SLAB) under MOE and by the EC project Sustainable Process Integration Laboratory–SPIL, funded as project No CZ.02.1.01/0.0/0.0/15 003/0000456 by the Czech Republic Operational Programme Research and Development, Education, Priority 1: Strengthening capacity for quality research under the collaboration agreemen<sup>t</sup> with the UTM, Johor Bahru, Malaysia.

**Conflicts of Interest:** The authors declare no conflict of interest.
