Next Article in Journal
The Innovative Concept of Cold District Heating Networks: A Literature Review
Previous Article in Journal
Sensorless Speed Control Based on the Improved Q-MRAS Method for Induction Motor Drives
Previous Article in Special Issue
Analytical Investigation of the Heat-Transfer Limits of a Novel Solar Loop-Heat Pipe Employing a Mini-Channel Evaporator
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessFeature PaperArticle
Energies 2018, 11(1), 237; https://doi.org/10.3390/en11010237

Energy-Saving Analysis of Solar Heating System with PCM Storage Tank

1
School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China
2
School of Urban Construction & Environment Engineering, Chongqing University, Chongqing 400045, China
*
Author to whom correspondence should be addressed.
Received: 18 November 2017 / Revised: 14 January 2018 / Accepted: 15 January 2018 / Published: 19 January 2018
(This article belongs to the Special Issue Solar Technologies for Buildings)
Full-Text   |   PDF [6198 KB, uploaded 19 January 2018]   |  

Abstract

A solar heating system (SHS) with a phase change material (PCM) thermal storage tank is proposed with the view that traditional heat water storage tanks present several problems including large space requirements, significant heat loss and unstable system performance. An entire heating season (November–March) is selected as the research period on the basis of numerical models of the SHS-PCM. In addition, taking a public building in Lhasa as the object, the heating conditions, contribution rate of solar energy, and overall energy-saving capability provided by the heating system are analyzed under different PCM storage tanks and different terminal forms. The results show that an SHS with a PCM tank provides a 34% increase in energy saving capability compared to an ordinary water tank heating system. It is suggested that the design selection parameters of the PCM storage tank should specify a daily heat storage capacity that satisfies 70~80% of the entire heating season. A floor radiant system with supply/return water temperatures of 40/35 °C provides the optimal operation and the largest energy saving capability. View Full-Text
Keywords: flat-plate solar thermal collector; PCM storage tank; terminal forms; energy-saving analysis flat-plate solar thermal collector; PCM storage tank; terminal forms; energy-saving analysis
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Zhao, J.; Ji, Y.; Yuan, Y.; Zhang, Z.; Lu, J. Energy-Saving Analysis of Solar Heating System with PCM Storage Tank. Energies 2018, 11, 237.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top