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Solar wall as energy diode; Solvaeg som energidiode

Technical Report:

Abstract

In connection with the renovation of older buildings, interest in using solar energy in solar walls is growing. The use of solar walls can help to reduce energy consumption and also help to protect the outer walls, which they cover, from the ravages of the weather - thus saving on maintenance costs. The solar energy can preheat the ventilation air. The aim of the project was to develop a combination of extra insulation and a solar wall - a solar wall energy diode. The building`s ventilation system sucks in air through an absorber made of mineral wool so that energy from the absorber is transferred to the ventilation air which is thus heated. When the sun shines on the solar wall the mineral wool is warmed, when it doesn`t, the energy diode functions as a countercurrent insulation and part or all of the heat loss from the rooms through the wall is absorbed by the air and carried back to the house as preheated ventilation air. This means that solar heat is led into the building and the loss of energy through the walls is reduced. A mathematical model and a calculation programme for the analysis of the solar energy  More>>
Publication Date:
Oct 01, 1994
Product Type:
Technical Report
Report Number:
DTU-LV-MEDD-269
Reference Number:
SCA: 140901; PA: DK-94:001740; EDB-95:013263; SN: 95001301482
Resource Relation:
Other Information: PBD: Oct 1994
Subject:
14 SOLAR ENERGY; PASSIVE SOLAR HEATING SYSTEMS; ENERGY CONSERVATION; WALLS; RETROFITTING; BUILDINGS; VENTILATION; CAPACITY; THERMAL INSULATION; DESIGN; THERMAL COMFORT; 140901; SPACE HEATING AND COOLING
OSTI ID:
10105189
Research Organizations:
Danmarks Tekniske Univ., Lyngby (Denmark). Lab. for Varmeisolering
Country of Origin:
Denmark
Language:
Danish
Other Identifying Numbers:
Other: ON: DE95723841; CNN: Contract ENS-51181-92.0064; TRN: DK9401740
Availability:
OSTI; NTIS
Submitting Site:
DK
Size:
44 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Vejen, N K, and Blaagaard, G. Solar wall as energy diode; Solvaeg som energidiode. Denmark: N. p., 1994. Web.
Vejen, N K, & Blaagaard, G. Solar wall as energy diode; Solvaeg som energidiode. Denmark.
Vejen, N K, and Blaagaard, G. 1994. "Solar wall as energy diode; Solvaeg som energidiode." Denmark.
@misc{etde_10105189,
title = {Solar wall as energy diode; Solvaeg som energidiode}
author = {Vejen, N K, and Blaagaard, G}
abstractNote = {In connection with the renovation of older buildings, interest in using solar energy in solar walls is growing. The use of solar walls can help to reduce energy consumption and also help to protect the outer walls, which they cover, from the ravages of the weather - thus saving on maintenance costs. The solar energy can preheat the ventilation air. The aim of the project was to develop a combination of extra insulation and a solar wall - a solar wall energy diode. The building`s ventilation system sucks in air through an absorber made of mineral wool so that energy from the absorber is transferred to the ventilation air which is thus heated. When the sun shines on the solar wall the mineral wool is warmed, when it doesn`t, the energy diode functions as a countercurrent insulation and part or all of the heat loss from the rooms through the wall is absorbed by the air and carried back to the house as preheated ventilation air. This means that solar heat is led into the building and the loss of energy through the walls is reduced. A mathematical model and a calculation programme for the analysis of the solar energy diode are presented. A simulation for the evaluation of the solar energy diode`s significance with regard to the indoor climate for the whole building is also given in addition to an economical evaluation of the use of this system. It was found that this ventilated solar wall had a greater capacity than a more traditional form of after-insulation. (AB)}
place = {Denmark}
year = {1994}
month = {Oct}
}