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Energy efficiency analysis of Organic Rankine Cycles with scroll expanders for cogenerative applications

Clemente, Stefano; Micheli, Diego; Reini, Mauro; … - In: Applied Energy 97 (2012) C, pp. 792-801

Small scale Organic Rankine Cycle (ORC) systems has been the object of a large number of studies in the last decade, because of their suitability for energy recovery and cogenerative applications.

Persistent link: https://www.econbiz.de/10010702697

PCM-based energy recovery from electric arc furnaces

Nardin, Gioacchino; Meneghetti, Antonella; Dal Magro, Fabio - In: Applied Energy 136 (2014) C, pp. 947-955

The problem of energy recovery from the electric arc furnace process of steel industry is addressed. During a tap to tap cycle, a significant part of the energy required for steel production is dissipated by the off-gas. The high variability of temperatures and flows, and the high concentration...

Persistent link: https://www.econbiz.de/10011076349

Carbon footprint of a thermal energy storage system using phase change materials for industrial energy recovery to reduce the fossil fuel consumption

López-Sabirón, Ana M.; Royo, Patricia; Ferreira, Victor J. - In: Applied Energy 135 (2014) C, pp. 616-624

Until now, a small number of studies have analysed the carbon footprint (CO2 eq. emissions) of the application of Phase Change Materials (PCMs) in conventional Thermal Energy Storage (TES) systems considering different conventional fossil fuels as the source of heat. In those scarce studies, the...

Persistent link: https://www.econbiz.de/10011076456

Energy recovery from pyrolysis and gasification of mangrove

Ahmed, I.; Jangsawang, W.; Gupta, A.K. - In: Applied Energy 91 (2012) 1, pp. 173-179

Mangrove is a biomass material that grows in wetland sea waters and is often used to produce charcoal due to its unique characteristics of long and sustained burning and negligible residue. High temperature pyrolysis has been conducted for mangrove biomass in a laboratory scale semi-batch...

Persistent link: https://www.econbiz.de/10011040931

Hybrid solar–geothermal power generation: Optimal retrofitting

Ghasemi, Hadi; Sheu, Elysia; Tizzanini, Alessio; Paci, Marco - In: Applied Energy 131 (2014) C, pp. 158-170

A model is developed for an existing organic Rankine cycle (ORC) utilizing a low-temperature geothermal brine including the performance characteristics of the components. The model is validated with a set of 7200 operation data collected in one-year. The operation of the ORC is optimized...

Persistent link: https://www.econbiz.de/10010906270

Transitioning to zero freshwater withdrawal in the U.S. for thermoelectric generation

Tidwell, Vincent C.; Macknick, Jordan; Zemlick, Katie; … - In: Applied Energy 131 (2014) C, pp. 508-516

Drought poses important risks to thermoelectric power production in the United States because of the significant water use in this sector. Here a scoping level analysis is performed to identify the technical tradeoffs and initial cost estimates for retrofitting existing thermoelectric generation...

Persistent link: https://www.econbiz.de/10010906296

Heat exchanger network retrofit with a fixed network structure

Jiang, Ning; Shelley, Jacob David; Doyle, Steve; Smith, … - In: Applied Energy 127 (2014) C, pp. 25-33

find retrofit changes to an existing network that can improve energy performance, in practice such changes are most often … uneconomic. This paper will present an approach to heat exchanger network retrofit around a fixed network structure. Network …, allow much more cost-effective heat exchanger network retrofit. …

Persistent link: https://www.econbiz.de/10010776555

Data and analytics to inform energy retrofit of high performance buildings

Hong, Tianzhen; Yang, Le; Hill, David; Feng, Wei - In: Applied Energy 126 (2014) C, pp. 90-106

that how these buildings perform and whether there are retrofit opportunities to further reduce their energy use. This is a …, a suite of analytics were proposed to analyze energy use and to identify retrofit measures for high performance … California to analyze its energy use and identify retrofit opportunities, including: (1) analyzing patterns of major energy end …

Persistent link: https://www.econbiz.de/10010776573

Effect of the anthracite ratio of blended coals on the combustion and NOx emission characteristics of a retrofitted down-fired 660-MWe utility boiler

Liu, Guangkui; Li, Zhengqi; Chen, Zhichao; Zhu, Xingying; … - In: Applied Energy 95 (2012) C, pp. 196-201

Industrial experiments were performed for a retrofitted 660-MWe full-scale arch-fired boiler. The ignition position of the primary air/fuel mixture flow, furnace temperature and flue gas component after the air heater were measured with different anthracite ratios at loads of 660- and 380-MWe....

Persistent link: https://www.econbiz.de/10010572077

Carbon emission reduction targeting through process integration and fuel switching with mathematical modeling

Tiew, B.J.; Shuhaimi, M.; Hashim, H. - In: Applied Energy 92 (2012) C, pp. 686-693

retrofit and fuel switching. However, it involves potentially time consuming manual procedures and the quality of solutions … emissions reduction targeting via fuel switching and HEN retrofit. A sequential model execution was proposed along with the …

Persistent link: https://www.econbiz.de/10010576342