Paper Title:
An Unsteady Model for Natural Ventilation with Solar Chimney
  Abstract

A one dimensional unsteady mathematical model for predicting the air mass flow rate in a solar chimney has been proposed. The thermal resistance and thermal inertia of both the glass cover and heat absorbing wall were considered in the present model. Crank-Nicolson finite difference numerical method was used to solve the differential equations. The variation of the air temperature in the solar chimney was solved by integrating the controlling equation for the air along the chimney height. Results show the absorber wall reaches its peak temperature 2 hours later with respect to the maximum ambient temperature. The air temperature in the channel varies with the solar radiation in a day and researches its peak value at about 2:00pm. The air mass flow rate increases remarkably with the increase of the channel depth when the solar radiation is higher from 11:00 am to 3:00 pm. The maximum of air mass flow rate occurs at around 2:00pm

  Info
Periodical
Advanced Materials Research (Volumes 354-355)
Chapter
Chapter 2: Thermal Engineering
Edited by
Hao Zhang, Yang Fu and Zhong Tang
Pages
286-289
DOI
10.4028/www.scientific.net/AMR.354-355.286
Citation
Z. B. Liu, Y. X. Su, "An Unsteady Model for Natural Ventilation with Solar Chimney", Advanced Materials Research, Vols. 354-355, pp. 286-289, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Han Dong Wang
Abstract:In order to utilize solar energy and industry waste heat to reduce electricity consumption in heating, ventilating, air conditioning and...
2335
Authors: Xi Bin Liu, Jian Rong Du, Jun Hua Wan, Zu Yi Zheng, Wen Ming Xu
Chapter 7: Heating, Gas Supply, Ventilation and Air Conditioning Works
Abstract:The mixed absorption refrigeration cycle which was suitable for the solar air-conditioning was presented. On the base of characters of...
2517
Authors: Qi Wang, Song Li, Miao Yu, Jiao Meng, Wen Long Cao
Chapter 1: Renewable Energy and Building Energy Saving
Abstract:The paper focuses on a new type of solar collector used double plastic-steel windows and covered of double common glasses. To ensure air...
164
Authors: Liang Liang, Liang Tian, Yun Qing Zhang, Jie Zhang
Chapter 3: New Technology on Manufacturing
Abstract:During the working process, temperature of the oil increases and its viscosity decreases due to the damping force, resulting in changes in...
669
Authors: Ming Dong Chen, Xue Bing Liu
Chapter 11: Heating, Gas Supply, Ventilation and Air Conditioning Works
Abstract:The V-shaped solar flat-plate air collector was design in order to improve the efficiency of solar flat-plate air collector, and the heat...
2175