New heat conversion technologies need to be developed and improved to take advantage of the necessary increase in the supply of renewable energy. The Organic Rankine Cycle is well suited for these applications, mainly because of its ability to recover low-grade heat and the possibility to be...

Heat activated cooling has the potential of utilizing thermal sources that currently go unused such as engine exhaust heat or industrial waste heat. Using these heat sources can provide enhanced energy utilization and reduced fuel usage in applications where cooling is needed. The concept...

In this study, an ORC (organic Rankine cycle) utilizing both low-grade steam from a pulverized coal power plant and LNG (liquefied natural gas) cold exergy is proposed and optimized. The proposed ORC is composed of a pump, a preheater, an evaporator, a superheater, a reheater, a two stage...

The thermo-economic optimization of an ORC (organic Rankine cycle) used to recover waste heat from large marine diesel engines are conducted numerically. The variations of net power output, thermal efficiency, and total cost of equipments of the ORC system with various turbine inlet and outlet...

Escalating fuel prices and imposition of carbon dioxide emission limits are creating renewed interest in methods to increase the thermal efficiency of marine diesel engines. One viable means to achieve such improved thermal efficiency is the conversion of engine waste heat to a more useful form...

Low-grade waste heat source accounts for a large part of the total industrial waste heat, which cannot be efficiently recovered. The ORC (Organic Rankine Cycle) system has been proved to be a promising solution for the utilization of low-grade heat sources. It is evident that there might be...

An experimental system for heat recovery from low-temperature flue gas based on Organic Rankine Cycle (ORC) was constructed. In the system, R123 was selected as working fluid, a scroll expander was used to produce work, and fin tubes heat exchanger was designed as evaporator. Low-temperature...

The purpose of the present paper is to propose a methodology for the fluid selection of an Organic Rankine Cycle for low-temperature waste heat recovery. The selection of an optimal working fluid is carried out by an optimization process, using the Genetic Algorithm. Three decision variables are...

The ENERCO_LT (ENErgy ReCOvery from Low Temperature heat sources) project is a waste heat recovery project that aims to reduce energy consumption in industrial gas production sites by producing electricity through Organic Rankine Cycles supplied by exothermic process discharges at low and medium...

In a typical cement producing procedure, 25% of the total energy used is electricity and 75% is thermal energy. However, the process is characterized by significant heat losses mainly by the flue gases and the ambient air stream used for cooling down the clinker (about 35%–40% of the process...