A multi-fuel management model for a community-level district heating system under multiple uncertainties

Development of a fuel management model for a multi-source district heating system under multi-uncertainty and multi-dimensional constraints

“…The design heat provision computation fulfills a crucial role in obtaining the reasonable multi-fuel supply pattern for MSDHSs [14]. However, uncertainties lying in a MSDHS may limit the effective adoption of relevant simulation, prediction or modeling methods in that their outcomes could vary dramatically once inputs change.…”

“…Li et al proposed an inexact coal blending model based on the combination of interval programming and fuzzy linear programming, the model could help decision makers identify the optimal power coal blending schemes for the different boilers under four pollutants removal policy scenarios [13]. Fu et al developed an interval two-stage double-stochastic programming model for FM of a district heating system fed with both fossil and renewable fuels under multiple random scenarios [14]. Summarily, most of these works tend to focus on deterministic modeling methods for supporting FM from one certain specific aspect (e.g.…”

“…Firstly, these researches mostly focused on either the fuel "quality" or the "quantity" issue to some extent, but few were found to address both issues concurrently for FM in a fossil-fuel-based MSDHS. It is of vital importance to couple fuel quality and quantity within a general model in that they would interact significantly in the FM framework [14]. For instance, the heating system may need less coal with high heating value or more coal with low heating value to ensure a satisfactory heating quality.…”

“…For example, most of the previous FM models corresponding to different fuel-combustion modes set the ideal coal-quality requirements at fixed values, based on which the boilers can be at an optimum function state. However, it is difficult to comply well with the ideal requirements due to coal price, coal type or some other technical reasons, and the coal-quality requirements are empirically evaluated and subject to decision maker or expert judgments, formulating the basic coal-quality requirements to enable the heating boiler to normally functioning but not at the optimum state [14]. This will lead to vague or ambiguous feature penetration into these requirements, nevertheless, there are seldom research works focusing on this issue.…”

Predictive Analysis of Waste Co-Combustion with Fossil Fuels Using the Life Cycle Assessment (LCA) Methodology

“…The process of exerting environmental impact can be a rather complex issue and has been examined in different studies [4]. The location in the system under analysis can play a significant role in the assessment process.…”