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Relevant bibliographies by topics / Efficiency of Stratification

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Journal articles

Academic literature on the topic 'Efficiency of Stratification'

Author: Grafiati

Published: 8 September 2023

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Journal articles on the topic "Efficiency of Stratification"

1

Rosengarten, G., G. Morrison, and M. Behnia. "A Second Law Approach to Characterising Thermally Stratified Hot Water Storage With Application to Solar Water Heaters." Journal of Solar Energy Engineering 121, no. 4 (1999): 194–200. http://dx.doi.org/10.1115/1.2888166.

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This paper presents a method of characterising and evaluating the performance of hot water storage systems in terms of their temperature distribution. The change in exergy from the stratified state to the delivery state depends on the stored energy and the stratification. It can thus he used to define the storage efficiency for sensible heat storage devices. A new parameter that isolates the stratification component of the exergy is defined and called the stratification efficiency. The effect of temperature distribution, delivery temperature and tank cross-section on exergy and stratification

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2

Sadooghi-Alvandi, S. M. "A NOTE ON THE EFFICIENCY OF PROPORTIONAL STRATIFICATION." Australian Journal of Statistics 30, no. 2 (1988): 196–99. http://dx.doi.org/10.1111/j.1467-842x.1988.tb00850.x.

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3

Roberts, Scott D., James N. Long, and Frederick W. Smith. "Canopy stratification and leaf area efficiency: a conceptualization." Forest Ecology and Management 60, no. 1-2 (1993): 143–56. http://dx.doi.org/10.1016/0378-1127(93)90028-l.

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4

Myllymäki, Mari, Terje Gobakken, Erik Næsset, and Annika Kangas. "The efficiency of poststratification compared with model-assisted estimation." Canadian Journal of Forest Research 47, no. 4 (2017): 515–26. http://dx.doi.org/10.1139/cjfr-2016-0383.

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Survey sampling with model-assisted estimation has recently gained popularity in forest inventory. Another option for utilizing the auxiliary information is to use poststratification, which is a special case of model-assisted estimation with class variables as explanatory variables. In this study, we compared the efficiency of poststratification with an increasing number of strata with model-assisted estimation. We carried out a study based on a simulated population. We considered four different types of poststratifications, namely (i) stratification based on predictions of a linear model, (ii

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5

Xie, Bing, John D. Clark, and David D. L. Minh. "Efficiency of Stratification for Ensemble Docking Using Reduced Ensembles." Journal of Chemical Information and Modeling 58, no. 9 (2018): 1915–25. http://dx.doi.org/10.1021/acs.jcim.8b00314.

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6

Ferrarini, Luca, Giancarlo Mantovani, and Marta Pagliarini. "Improving Energy Efficiency in Large Buildings with Thermal Stratification." IFAC Proceedings Volumes 47, no. 3 (2014): 4885–90. http://dx.doi.org/10.3182/20140824-6-za-1003.02532.

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7

Trinuruk, Piyatida, Papangkorn Jenyongsak, and Somchai Wongwises. "Comparative Study of Inlet Structure and Obstacle Plate Designs Affecting the Temperature Stratification Characteristics." Energies 15, no. 6 (2022): 2032. http://dx.doi.org/10.3390/en15062032.

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Temperature stratification between outgoing hot water and incoming cold water is a key factor in diminishing energy loss during the discharging process and maximizing the useful hot water delivered from the tank or enhancing the thermal efficiency of the heating device during the heating process. In this study, the inlet structure and the obstacle plate were designed and modified based on two main factors, the reduction of inlet water velocity and the stipulation of the water recirculation area, to develop temperature stratification through the computational fluid dynamics method. The simulati

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8

Han, Wang Kook, Jin Man Kim, Tae Hun Lim, Hae Eun Song, and Young Chull Ahn. "Temperature stratification using an air-cooled heat pump system with a mixing valve." Advances in Mechanical Engineering 12, no. 12 (2020): 168781402098465. http://dx.doi.org/10.1177/1687814020984653.

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The main factor determining the performance of a thermal storage method is the temperature stratification in the storage tank. At the ideal stratification, the energy efficiency of the storage tank is extremely high. However, when the heat pump is applied, the stratification is disrupted by heat exchange between the layers of the heat medium, and consequent convection in the tank. Therefore, this study analyzed the influence of stratification-related design factors in the water-piping facility area outside a tank heated by a heat pump. In particular, it assessed the thermal stratification and

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9

Wissink, Martin, and Rolf Reitz. "The role of the diffusion-limited injection in direct dual fuel stratification." International Journal of Engine Research 18, no. 4 (2016): 351–65. http://dx.doi.org/10.1177/1468087416661867.

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Low-temperature combustion offers an attractive combination of high thermal efficiency and low NO x and soot formation at moderate engine load. However, the kinetically-controlled nature of low-temperature combustion yields little authority over the rate of heat release, resulting in a tradeoff between load, noise, and thermal efficiency. While several single-fuel strategies have achieved full-load operation through the use of equivalence ratio stratification, they uniformly require retarded combustion phasing to maintain reasonable noise levels, which comes at the expense of thermal efficienc

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10

SON, HYO SEOK, JAE-WOOK KWON, SEONG HOON LEE, CHUL KIM, and HIKI HONG. "THE EFFECT OF UPPER-HEATING SYSTEM IN SOLAR WATER STORAGE TANK." International Journal of Air-Conditioning and Refrigeration 22, no. 04 (2014): 1450027. http://dx.doi.org/10.1142/s2010132514500278.

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Thermal stratification in the water storage tank of solar heating system is essential to increase the collection efficiency. We previously investigated the stratification performance of side-heating system, where the hot water returning from the collector heats up the side wall of storage tank. Subsequently, we studied an evolved heating system for further improvement, where we added an upper-heating to the side-heating. Here we thoroughly examine the stratification performance of the evolved heating system using TRNSYS-based simulation. As the essential result, contrary to expectation, evolve

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