Topic
Thermal efficiency
About: Thermal efficiency is a research topic. Over the lifetime, 20911 publications have been published within this topic receiving 302373 citations. The topic is also known as: thermodynamic efficiency & efficiency.
Papers published on a yearly basis
Papers
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TL;DR: In this paper, three types of porous media burners; metal fiber (MF), ceramic (CM), and stainless steel fin (SF) were used with a commercial heat exchanger and tested for various equivalence ratios and burner capacities.
82 citations
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TL;DR: In this article, the authors defined the main features of an ORC system aimed to recover heat from a 100kWe commercial gas turbine with internal recuperator, and compared the performances of these dynamic machines with those of positive displacement expanders, such as scroll devices, obtainable from commercial HVAC compressor with minor revisions, and reciprocating ones, here newly designed.
82 citations
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TL;DR: In this article, energy flows and energy efficiencies in the operation of a modern automobile are expressed in terms of simple algebraic approximations, and various technologies to reduce the energy consumption of automobiles are discussed.
Abstract: Energy flows and energy efficiencies in the operation of a modern automobile are expressed in terms of simple algebraic approximations. One purpose is to make a car's energy use and the potential for reducing it accessible to non-specialists with technical backgrounds. The overall energy use depends on two factors, vehicle load and powertrain efficiency. The former depends on speed and acceleration and key vehicle characteristics such as mass. The latter depends on heat-engine thermodynamic efficiency, and engine and transmission frictions. The analysis applies to todays automobiles. Numerical values of important parameters are given so that the reader can make his or her own estimates. Various technologies to reduce the energy consumption of automobiles are discussed.
82 citations
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TL;DR: In this article, a modified CCHP (combined cooling, heating, and power) system is proposed using supercritical CO2, which combines a Brayton cycle and a transcritical ejector refrigeration cycle.
81 citations
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TL;DR: In this article, the effects of dual alcohols (n-butanol and methanol) with single alcohol (methanol) blended in gasoline fuel (GF) against performance, combustion and emission characteristics were compared.
81 citations