Organic Rankine Cycles: the energy economics?
…capex (in $/kW), thermal efficiency levels (in %) and the levelized costs of power from Organic Rankine Cycle engines. Capex costs of Organic Rankine Cycle engines are estimated at around…
Thermodynamics: Carnot, Rankine, Brayton & beyond?
…engine depends on the delta between its maximum temperature and the ambient temperature (both measured in Kelvin) The Rankine Cycle is a modified variant of the Carnot Cycle, which adds…
Thermodynamics: Carnot, Rankine, Brayton & beyond?
Engines convert heat into work. They are governed by thermodynamics. This note is not a 1,000 page textbook. The goal is to explain different heat engines, simply, in 13-pages, covering…
Thermodynamics of prime movers: energy from first principles?
…totally different thermodynamic cycles. We think every serious decision-maker in energy should know the laws of thermodynamics and the basics of heat engines (primer below). https://thundersaidenergy.com/2023/01/12/thermodynamics-carnot-rankine-brayton-beyond/ Solid fuels tend to…
Waste heat recovery: heat exchanger costs?
…costs of heat exchangers in $ per kW of heat exchange Other research into waste heat recovery covers Rankine Engines, Absorption Chillers and Insulation Materials. The model contains a variation…
Geothermal energy: costs and economics?
…electricity, and enhanced geothermal heat. The capex costs for geothermal draw on our models, which capture the costs of drilling wells, heat exchangers and Organic Rankine Cycles. Please download the…
Energy economics: an overview?
…the data-file, across our models of Air Separation, Cables, Comminution, Compressors, Electric Motors, Electrowinning, Fans, Flotation, Gas Dehydration, Harmonic Filters, Heat Exchangers, Inverters, Motor Drivers, Pumps, Rankine Engines, Tanks and…
Global coal production: supply outlook in energy transition?
…mining leaks more methane than gas itself. And Rankine steam cycles fueled by coal have efficiency drawbacks (note here) and also relatively low flexibility (data here). Hence our Roadmap to…
Gas turbines: operating parameters?
…heat cycle used in other conventional thermal power plants (Rankine cycle). This is remarkable. The efficiency of a simple cycle gas turbine depends primarily on the turbine inlet temperature and…
Thermal power plant: loss attribution?
…largest losses are modeled to occur in the steam condensation stage of the Rankine Cycle (17% of losses), the boiler (14%), turbine losses (9%), heat lost in exhaust air (8%),…