Modeling the energy effects of combined heat and mass transfer in building elements: Part 1--theory

R J Liesen C O Pedersen

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Modeling the energy effects of combined heat and mass transfer in building elements: Part 1--theory

机译：在建筑元素中模拟传热传质的能量效应建模：第1部分-理论

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《ASHRAE Transactions》 |1999年第2期|p.941-953|共13页
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R J Liesen C O Pedersen;
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RL J. Liesen is a senior research engineer and C. 0. Pedersen is professor emeritus at the University of Illinois, Urbana, IL.;

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1. Modeling the energy effects of combined heat and mass transfer in building elements: Part 2--application to a building energy analysis program and examples [J] . R J Liesen C O Pedersen ASHRAE Transactions . 1999,第2期

机译：对建筑元素中传热和传质相结合的能量效应进行建模：第2部分-建筑能量分析程序和示例的应用
2. Effects of combined heat and mass transfer on heating load in building drying period [J] . Fanhong Kong, Maoyu Zheng Energy and Buildings . 2008,第8期

机译：传热传质对建筑物干燥期热负荷的影响
3. Corrigendum to 'A critical review of heat and mass transfer in vegetative roof models used in building energy and urban environment simulation tools' [Appl. Energy 232 (2018) 752-764] [J] . Vera Sergio, Pinto Camilo, CesarTabares-Velasco Paulo, Applied Energy . 2020,第May15期

机译：建筑能源和城市环境模拟工具中使用的营养屋顶模型中热量和传质的严重审查的勘误。能源232（2018）752-764]
4. Mathematical modeling and research of heat-and-mass transfer of moisture and gas in the capillary-porous space of solid biofuel elements [C] . Vladislav N. Kovalnogov, Ruslan V. Fedorov, Mikhail S. Boyarkin, International Conference of Numerical Analysis and Applied Mathematics . 2019

机译：固体生物燃料元素毛细管多孔空间中水分和气体热量传递的数学建模与研究
5. Development of a response factor approach for modeling the energy effects of combined heat and mass transfer with vapor adsorption in building elements. [D] . Liesen, Richard John. 1994

机译：开发了一种响应因子方法，用于对建筑构件中的热量和质量传递与蒸汽吸附相结合的能量效应进行建模。
6. Energy Analysis of a Complementary Heating System Combining Solar Energy and Coal for a Rural Residential Building in Northwest China [O] . Xiaofei Zhen, Jinping Li, Yassir Idris Abdalla Osman, -1

机译：西北某农村居民住房太阳能与煤炭结合供热系统的能源分析
7. This article presents a new numerical model describing the behaviour of a thermally thick wood sample exposed to high solar heat flux (above 1 MW/m2). A preliminary study based on dimensionless numbers is used to classify the problem and support model building assumptions. Then, a model based on mass, momentum and energy balance equations is proposed. These equations are coupled with liquid-vapour drying model and pseudo species biomass degradation model. By comparing to a former experimental study, preliminary results have shown that these equations are not enough to accurately predict biomass behaviour under high solar heat flux. Indeed, a char layer acting as radiative shield forms on the sample exposed surface. In addition to this classical set of equations, it is mandatory to take into account radiation penetration into the medium. Furthermore, as biomass contains water, medium deformation consecutively to char steam gasification must also be implemented. Finally, with the addition of these two strategies, the model is able to properly capture the degradation of biomass when exposed to high radiative heat flux over a range of sample initial moisture content. Additional insights of biomass behaviour under high solar heat flux were also derived. Drying, pyrolysis and gasification fronts are present at the same time inside of the sample. The coexistence of these three thermochemical fronts leads to char gasification by the steam produced from drying of the sample, which it is the main phenomenon behind medium ablation. [O] . Pozzobon, Victor, Salvador, Sylvain, Bézian, Jean Jacques 2018

机译：本文提供了一个新的数值模型，该模型描述了暴露于高太阳热通量（高于1 / MW / m2）的热厚木材样品的行为。基于无量纲数的初步研究用于对问题进行分类并支持模型构建假设。然后，提出了一种基于质量，动量和能量平衡方程的模型。这些方程式与液体蒸汽干燥模型和假物种生物质降解模型耦合。通过与以前的实验研究进行比较，初步结果表明，这些方程不足以准确预测高太阳热通量下的生物量行为。的确，在样品暴露的表面上形成了充当辐射屏蔽层的炭层。除了这套经典的方程式之外，还必须考虑到辐射向介质的渗透。此外，由于生物质中含有水，因此还必须在炭蒸气汽化后进行连续的介质变形。最后，通过添加这两种策略，该模型能够在一定范围的样品初始水分含量下暴露于高辐射热通量的情况下，正确捕获生物质的降解。还得出了在高太阳热通量下生物量行为的其他见解。样品内部同时存在干燥，热解和气化前沿。这三个热化学前沿的共存会导致样品干燥产生的蒸汽产生焦炭气化，这是介质烧蚀的主要现象。
8. Investigation of Combined Heat and Mass Transfer from a Wet Heat Exchanger. Part 1. Formulation of an Approximate Heat/Mass Transfer Model for Calculating the Performance of Heat Exchangers in Dry/Wet Operation [R] . Kreid, D. K., Hauser, S. G., Johnson, B. M. 1982

机译：湿式换热器的传热传质研究。第1部分：用于计算干/湿操作中换热器性能的近似传热传质模型的公式

Modeling the energy effects of combined heat and mass transfer in building elements: Part 1--theory

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