Prediction of Stratified Flow Temperature Profiles in a Fully Insulated Environment

Abstract

The aim of the study is to present an analytical model to predict the temperature profiles in thermal stratified environment. Thermal stratification is encountered in many situations. The flow of contaminants and hydrocarbons in environment often get stratified. The prediction of temperature profiles and flow characteristics are essential for HVAC applications, environment and energy management. The temperature profiles in the stratified region are successfully obtained, in terms of flow-operating functions. The analytical model agrees well with the published experimental data as well as the related closed-form solutions, which is helpful for HVAC applications. The model will be further developed and incorporated within a numerical model in order to investigate the flow field characteristics and establish correlations for a wide range of parameters.

Analysis of the influence of the return position in the vertical temperature gradient in displacement ventilation systems for large halls

“…Wang et al [29] have studied stratification when cooling underfloor distribution systems are used. Recently, Awad et al [30] have dealt with the vertical temperature gradient with displacement ventilation, but for pollutant removal purposes only. Porras et al [31] have measured, under summer conditions, the thermal gradient in an air-conditioned warehouse with similar dimensions (32 m long, 26 m wide and 8 m high) to the building studied in the article.…”