Abstract The organic Rankine cycle (ORC) power plant is derived from a centrifugal chiller air conditioning system as an alternative to diesel replacement modular due its low cost compared ORC’s manufacture. Biomass used heat source for the utilize vast amount of biomass in Indonesia. Research performed by designing ORC with that produces around 200 kWe. Simulation done Microsoft Excel and Refe...

Biomass can provide a reliable support for production of biofuels while contributing to sustainable management of natural resources. Many countries, including Italy, have introduced important incentive schemes to support the use of biomass for electricity, heat and transportation. This has raised considerable interest towards the use of biomass for energy generation purposes. Nonetheless, the d...

A small-scale organic Rankine cycle (ORC) with kW-class power output has a wide application prospect in industrial low-grade energy utilization. Increasing the expansion pressure ratio of ORC is an effective approach to improve efficiency. However, there lack suitable expander for that can operate high efficiency under condition large and small mass flow rate. Aiming at design high-efficiency a...

Organic Rankine cycle (ORC) systems are some of the most suitable technologies to produce electricity from low-temperature waste heat. In this study, a non-regenerative, micro-scale ORC system was tested in off-design conditions using R134a as working fluid. The experimental data were then used tune semi-empirical models main components system. Eventually, component-oriented solver map electric...

The ORC technology in cogenerative systems has by now reached a level of full maturity in biomass applications. In Europe, there are over 120 plants in operation with sizes between 0.2 and 2.5 MW electric. ORC systems are very flexible and can be used in different applications like district heating systems, pellet production factories, sawmills and tri-generation systems with absorption chiller...

In this study, a main marine engine with rating power of 21,840 kW for ship sailing in an actual voyage was obtained as the research object. The engine’s exhaust gas and jacket cooling water were adopted heat source organic Rankine cycle (ORC) system developed engine. can consume high-sulfur or low-sulfur fuel oil, respectively, according to different emission control requirements. impact use v...

The excessive consumption of fossil fuels is causing environmental problems, which can be addressed by utilizing renewable energy sources such as hydro energy, biomass, solar heat, geothermal, and waste heat. In particular, the exhaust gas from gasoline engines presents an opportunity for recovery, only 25% utilized while remaining 75% wasted. A fin tube type evaporator was designed, manufactur...

Pumped thermal energy storage (PTES) is a technology for intermediate of electrical in the form energy. In this work, PTES systems based on transcritical CO2 charging process are investigated. A two-zone water tank with temperature 115°C used as storage. For discharge, an Organic Rankine Cycle (ORC) and, alternatively, heat engine The considered concepts modelled and simulated stationary proces...

From low-grade heat sources, the organic Rankine cycle may be exploited to create power. The thermal efficiency of is affected by value lowest temperature, which condensation temperature. This study looks at effect temperature on energy systems that use cycles. At a condensing 10–20 °C, ORC calculated. R134a working fluid was used in study. expander's power output boosted 0.09765 kW decreasing ...