A data-driven approach is utilized to model a chiller plant that has four chillers, four cooling towers, and two chilled water storage tanks. The chillers have varying energy efficiency. Since the chiller plant model derived from data-driven approach is nonlinear and non-convex, it is not practical to solve it by using the traditional gradient-based optimization algorithm. A two-level intellige...

Integrated energy systems utilizing renewable sources are sustainable and environmentally substitutes for conventional fossil-fired energy systems. A new multigeneration plant with two inputs, such as biomass and solar energy, and four useful outputs, such as cooling, heating, power, and distilled water, is presented and investigated in this paper. The proposed system includes evacuated tub...

This article presents an experimental study on the hygric performance of brick masonry with a special focus hydraulic characterization brick-mortar interface. The behavior was studied at level constituent materials as well composite scale. An extruded fired-clay and two types mortar –Portland cement natural lime mortar– were chosen target materials. properties determined following prescribed pr...

This work applies the second-law analysis of thermodynamics to quantify the exergy destruction of the components of screw liquid chiller, and to identify the potential for each component to contribute to improve the overall energy efficiency of the system. Three screw liquid chiller units were built to demonstrate the feasibility of the model presented herein. Unit A was a 100 RT water-cooled s...

In the quest for a better use of energy resources, integration, and cogeneration strategies have been employed in industrial commercial sectors with considerable benefits realized. However, residential sector remains underexplored. An optimization procedure should be carried out whenever there is need to ensure or verify economic viability an system. This study uses Mixed Integer Linear Program...

In this study, cold and thermal storage systems were designed manufactured to operate in combination with the water chiller air-conditioning system of 105.5 kW capacity, aim reducing operating costs maximizing energy efficiency. The tank used a mixture 10 wt.% glycerin as phase-change material (PCM), while was heat transfer fluid (HTF). exchanger made polyvinyl chloride (PVC). On other hand, ca...

The current study aimed at delving into the thermodynamic of a trigeneration cycle based on biomass fuel, combined with an Organic Rankine Cycle (ORC) and absorption chiller. Biomass fuel is purely produced from Municipal Solid Waste (MSW). Energy exergy analyses were carried out using solar collector employing optimized characteristics to provide required thermal energy ideal condition utilizi...

This study constructed a parameter analysis for improving the energy performance of air-cooled water chillers by altering the angle configuration of the condenser coils. The mathematical models for energy and exergy analyses of the individual components and overall system of air-cooled water chillers are presented. This study investigated the potential enhancement of performance efficiency in a...

In the present study, exhaust gases from Tehran refinery crude oil furnace are used in a Heat Recovery Steam Generator (HRSG)for generating steam. Then, the steam is directed to a double effect absorption refrigeration cycle to produce cooling. To meet the object, mass and energy balance equations of the coupling is carried out for both the HRSG and the absorption chiller and unknown thermodyna...