Numerical investigation of backflow in natural draft chimneys

Babin, T.; Ramanathan, S.; Muthukumar, S; Arun, Anand Prabu; Subbiah, Surej Kumar

doi:10.1016/j.matpr.2020.04.085

Cited by 3 publications

(1 citation statement)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The aim is to stimulate natural ventilation through the house as the "Venturi" disc accelerates the wind flow passing under it, causing a suction effect on exhaust ventilation [12]. In addition, traditional chimney ventilation in a well-sealed house proofed to be commonly effective, simple, and low cost [13].…”

Section: Energy Design Refurbishmentmentioning

confidence: 99%

“Cube house” refurbishment in Hungary – A simulation-based approach

Ali

Kistelegdi

2021

Pollack

View full text Add to dashboard Cite

About 800,000 of “Cube houses” which date back to the socialist era are still in use throughout Hungary. These houses are considered to be “outdated” and they bring not only energy but also social issues. This paper presents a refurbishment design solution for the cube house, combining vernacular architecture with modern solutions within the framework of Solar Decathlon Europe 19 competition. The paper investigates the comfort and energy improvement of the refurbished design. Thermal simulation results revealed considerable improvements, which can be considered and implemented to a big proportion of family houses with analogous dimensions, under similar climate conditions.

show abstract

Section: Energy Design Refurbishmentmentioning

confidence: 99%

“Cube house” refurbishment in Hungary – A simulation-based approach

Ali

Kistelegdi

2021

Pollack

View full text Add to dashboard Cite

show abstract

An analytical model of stack ventilation in a shaft with controllable air volume

Zheng,

Xu,

et al. 2023

Journal of Building Engineering

View full text Add to dashboard Cite

Chimney Structure of Hollow Sand Mold for Casting Solidification

Kang

Shangguan

et al. 2022

Metals

View full text Add to dashboard Cite

The hollow sand mold can affect the cooling of the casting during the solidification process. A chimney structure of a hollow sand mold that mainly consists of a two-layer shell with through channels was proposed. The design method was proposed for the chimney structure. Due to the chimney effect, cool air can enter the chimney from the bottom entrance, and hot air flows out from its top opening. Air transfers heat from the sand mold and forms a temperature gradient from bottom to top. A hollow sand mold with a chimney structure was applied to the wedge plate casting. During the solidification process, natural cooling and forced air cooling through open channels were applied. The effects of the chimney on the microstructure, mechanical properties, and residual stress of the castings under these two different cooling conditions were analyzed and compared with those of the casting in a dense mold. During the solidification stage of the castings, the chimney structure prolonged their solidification time. After solidification, the chimney structure under forced air condition increased the cooling rate of the castings by 61% and the temperature gradient along the vertical direction by a factor of three. The Si content in the Al matrix increased by 20.4%, and the tensile strength increased by 32.66%.

show abstract

Numerical investigation of backflow in natural draft chimneys

Cited by 3 publications

References 19 publications

“Cube house” refurbishment in Hungary – A simulation-based approach

“Cube house” refurbishment in Hungary – A simulation-based approach

An analytical model of stack ventilation in a shaft with controllable air volume

Chimney Structure of Hollow Sand Mold for Casting Solidification

Contact Info

Product

Resources

About