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...

This paper shows the characteristics of temperature and adsorbed (water vapor) mass rate distribution in adsorber unit which is key part to any adsorption refrigeration system. The profiles adsorption/desorption phases (Dynamic Sorption) are measured experimentally under operating conditions 90oC hot water temperature, 30oC cooling 35oC cycle time 40 min. Based on profiles, transfer equations f...

In the recent times, the use of solar energy for the refrigeration purpose has been increasing day by day. Generally, solar used for cooling purpose has proposed many advantageous features in the refrigeration field. The cooling path is basically depends on the amount of solar radiation. The more amount of solar radiation directly increases the C.O.P. of the system. In this research paper, the ...

F-gas phase-down schedules will remove most of the HFCs (hydrofluorocarbons) used in refrigeration systems short term. Besides refrigerant substitution, configuration modifications can be considered existing installations to increase energy efficiency. Basic cycle, direct injection, economiser, parallel compression, and cascade configurations with internal heat exchanger have been proposed effi...