Abstract Carbon-dioxide-based trans-critical power cycle is a novel technology for waste heat recovery. This can handle the high-temperature exhaust gas and be built in compact size, which an important feature auxiliary equipment internal combustion engine. To obtain best output, four configurations were constructed: basic system; one with preheater, another regenerator fourth preheater regener...

Oil refineries are responsible for 4–6% of global CO 2 emissions, and 20–35% these emissions released from the regenerator Fluid Catalytic Cracking (FCC) units, which essential units conversion heavier petroleum residues (vacuum gas oil) into more valuable products. Chemical looping combustion (CLC) has been recently proposed to mitigate FCC with a lower energy penalty. However, detailed experi...

This thesis investigates the use of Semiconductor Optical Amplifiers (SOA) for 10 and 40Gb/s all-optical 3R signal regeneration and wavelength conversion for application to advanced high-speed all-optical WDM networks. Detailed experimental characterisation of the magnitude and the time scales of inter­ band nonlinear effects in SOA is carried out. The regenerative properties of SOA gates are t...

In this paper we summarize our recently proposed work on the information theory analysis of nonlinear regenerative channels. We discuss fundamental assumptions in our modelling approach and we show that through proper manipulation of the regenerator properties Shannon capacities higher than the limits of the corresponding linear channels can be achieved.

We demonstrate the folded ultrafast nonlinear interferometer (FUNI) as a 3R all-optical regenerator. Faraday rotation provides inherent polarization stabilization, and the optical fiber nonlinear medium provides ultrafast operation and switching window tunability. We demonstrate 3R regeneration of 10-Gbit/s data with 5-pJ pulse switching energy and 4-ps timing-jitter tolerance.

Correlation of heat transfer coefficients for air flow through the regenerator constructed from randomly paked spheres is reported for the symmetric-balanced mode of operation. The experimental results have been correlated by the least square regression has been obtained.The present correlation has been compared with the heat transfer coefficient correlations in the literature.

This paper uses second-order software for evaluating five Stirling engine parameter?s effect on its performance to select an appropriate configuration with optimal dimensions use in a concentrated solar power plant. Appropriate configuration, heater shape, bundle tube heat exchanger size, and regenerator type geometry are studied. Results show that Alpha is the most suitable high-temperature di...