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indicate the power plant efficiency. The heat rate is the inverse of the efficiency: a lower heat rate is better. Heat Rate = Thermal Energy In Electrical...

term heat rate may refer to: Heat capacity rate Heat transfer, measured by "Heat transfer rate" Rate of heat flow, or "Heat flow rate" Heat rate (efficiency)...

Efficiency is the often measurable ability to avoid making mistakes or wasting materials, energy, efforts, money, and time while performing a task. In...

source heat pumps, water source heat pumps and exhaust air heat pumps. Large-scale heat pumps are also used in district heating systems. The efficiency of...

typically recover about 60–95% of the heat in the exhaust air and have significantly improved the energy efficiency of buildings. Energy recovery ventilation...

energy which would otherwise be lost to heat during braking is recaptured as electrical power to improve fuel efficiency. The larger batteries in these vehicles...

efficiency-like quantities have units associated with them. For example, the heat rate of a fossil fuel power plant may be expressed in BTU per kilowatt-hour...

Efficiency is given as a coefficient of performance (CoP) which is typically in the range 3 – 6, meaning that the devices provide 3 – 6 units of heat...

exchanger, 2-pass shell side, 2-pass tube side (2-2 countercurrent) For efficiency, heat exchangers are designed to maximize the surface area of the wall between...

In the United States, the efficiency of air conditioners is often rated by the seasonal energy efficiency ratio (SEER) which is defined by the Air Conditioning...

contribute to a vehicle's fuel efficiency. The efficiency of an engine is defined as ratio of the useful work done to the heat provided. η = w o r k   d o...

natural gas input (where the rest may be wasted heat in the exhaust). A higher AFUE means higher efficiency. The method for determining the AFUE for residential...

efficient heat engine which is theoretically possible. The efficiency depends only upon the absolute temperatures of the hot and cold heat reservoirs...

Faraday efficiency (also called faradaic efficiency, faradaic yield, coulombic efficiency, or current efficiency) describes the efficiency with which...

the ratio of the thermal efficiency of an actual system compared to an idealized or reversible version of the system for heat engines. It can also be described...

mechanical work, light (radiation), or heat. The resulting value, η (eta), ranges between 0 and 1. Energy conversion efficiency depends on the usefulness of the...

(direct method) Heat-loss method (indirect method) Direct method of boiler efficiency test is more usable or more common. Boiler efficiency = power out /...

A heat pipe is a heat-transfer device that employs phase transition to transfer heat between two solid interfaces. At the hot interface of a heat pipe...

over the heat sink. If fins are not aligned vertically, or if fins are too close together to allow sufficient air flow between them, the efficiency of the...

efficiency and η p {\displaystyle \eta _{\mathrm {p} }} is the propulsive efficiency. The cycle efficiency is expressed as the percentage of the heat...