Solar thermal systems have the potential to provide renewable industrial process heat and are especially suited for low pinch temperature processes such as those in the food, beverage, and textile sectors. When correctly integrated within an industrial process, they can provide significant...

CWNs (cooling water networks) are targeted and designed in this work by an analytical approach requiring no graphical procedures. The key basis for the approach is the conversion of the cooling duties to equivalent inlet–outlet (demand–source) pairs. The UTA (Unified Targeting Algorithm) is...

Process cooling below ambient temperature is an energy demanding part of many chemical production processes. Compression refrigeration systems operating at very low temperatures consume a lot of high quality utility such as electricity or high pressure steam to drive the compressor units. In...

Significant energy savings can be achieved in the pulp and paper industry through process integration. The aim of this paper was to investigate how much seasonal variations in the process influence the potential for making energy savings. The hot and warm water system in a market pulp mill has...

The combined sugar and ethanol production process from sugar cane is a paradigmatic application for energy integration strategies because of the high number of hot and cold streams involved, the external hot utility requirement at two temperature levels for juice evaporation and crystallization,...

Chilled water is a common cooling agent used in various industrial, commercial and institutional facilities. In conventional practice, chilled water is distributed via chilled water networks (CHWNs) in parallel configuration to provide required air conditioning and/or equipment cooling in the...

Focused on the problem of low viability of Heat Integration (HI) scheme for complex system, a strategy and a method of hierarchical Heat Integration (HHI) were proposed in this paper. The practical limitations and energy target were combined stage by stage to determine the number of hierarchy...

The overall process of biodiesel synthesis from vegetable oil and methanol is spontaneous according to Gibbs energy values. Therefore, a classical process scheme consisting of reactor followed by distillation columns train is grouped in a single hybrid reactive extraction column. Minimum energy...

The importance of the steam cycle design to maximize power generation is demonstrated using pinch analysis targeting techniques is demonstrated. Fixed steam headers, such as assumed in total site analysis, give no allowance for reheating before turbine expansion, which can be valuable to...

This paper outlines the past analysis and projected planning of the Irish electricity generation sector using an extension of a novel methodology based on a graphical optimisation concept. The main two adaptations/extensions to the current form of the methodology are proposed as both the...