Direct discharge of waste heat from internal combustion engines (ICEs) is unfavorable for the efficient and clean fuel utilization. Here, a novel combined absorption-compression cascade refrigeration cycle proposed to efficiently capture low-grade supply cooling capacity food freezing in vessels or refrigerated trucks. The intention this work lies in: i) Comprehensively evaluating performances ...

Refrigeration cycle system modelling of the vapor compression experimental unit with the goal to predict the system performance of the cycle and geometry of the helical coil evaporator flooded in the water is presented in the paper. Design of the experimental unit is based on the commercially available scroll compressor and air cooled condenser. In order to determine the thermodynamic condition...

In this paper, an advanced analysis of a novel hybrid compression-absorption refrigeration system (HCARS) for natural gas dew point control unit in a gas refinery is presented. This unit separates the heavy hydrocarbon molecules in the natural gas, which is traditionally carried out by natural gas cooling in a compression refrigeration cycle (CRS). The power input required for the refrigeration...

Refrigeration cogeneration systems which generate power alongside with cooling improve energy utilization significantly, because such systems offer a more reasonable arrangement of energy and exergy ‘‘flows’’ within the system, which results in lower fuel consumption as compared to the separate generation of power and cooling or heating. This paper proposes several novel systems of that type, b...

The lack of established optimal design guidelines for turbomachinery operating in the nonideal flow regime (e.g., organic Rankine cycle turbines, compressors, compressors refrigeration systems) demands effective and efficient automated methods. Past research work focused on gradient-free methods applied to computational fluid-dynamic simulations. application adjoint method is a cost-effective a...