Analysis of the rigid porous manifold as an effective device to stratify solar water tanks

Vivek Ghosh, Jane H. Davidson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

One of the most effective and simplest methods to maintain thermal stratification of water storage tanks during charge and discharge is the use of a rigid porous manifold. This type of manifold does not require any moving parts or special materials and thus is particularly appealing for solar hot water systems. It has a series of vertical hydraulic resistance elements placed within a perforated tube. At the design operating conditions, the manifold ensures that fluid entering the tank is delivered to the vertical position where it is the same temperature as the tank fluid. In this paper we assess the utility of a rigid porous manifold over a range of operating conditions. The primary result is the development of a simple relationship between a dimensionless performance indicator and a second dimensionless parameter that represents the operating condition. This relationship can be used as a tool to predict undesired flow values over the range of operating conditions.

Original languageEnglish (US)
Title of host publication40th ASES National Solar Conference 2011, SOLAR 2011
Pages241-247
Number of pages7
StatePublished - Dec 1 2011
Event40th ASES National Solar Conference 2011, SOLAR 2011 - Raleigh, NC, United States
Duration: May 17 2011May 20 2011

Publication series

Name40th ASES National Solar Conference 2011, SOLAR 2011
Volume1

Other

Other40th ASES National Solar Conference 2011, SOLAR 2011
CountryUnited States
CityRaleigh, NC
Period5/17/115/20/11

Fingerprint Dive into the research topics of 'Analysis of the rigid porous manifold as an effective device to stratify solar water tanks'. Together they form a unique fingerprint.

  • Cite this

    Ghosh, V., & Davidson, J. H. (2011). Analysis of the rigid porous manifold as an effective device to stratify solar water tanks. In 40th ASES National Solar Conference 2011, SOLAR 2011 (pp. 241-247). (40th ASES National Solar Conference 2011, SOLAR 2011; Vol. 1).