Predicting the performance of radiant technologies in attics: Reducing the discrepancies between attic specific and whole-building energy models

被引：4

作者：

Fontanini, Anthony D. ^{[1
,3
]}

Aguilar, Jose L. Castro ^{[1
]}

Mitchell, Matt S. ^{[2
]}

Kosny, Jan ^{[1
]}

Merket, Noel ^{[3
]}

DeGraw, Jason W. ^{[3
]}

Lee, Edwin ^{[3
]}

机构：

[1] Fraunhofer CSE, Bldg Envelope & Mat Grp, Boston, MA 02210 USA

[2] Oklahoma State Univ, Sch Mech & Aerosp Engn, Stillwater, OK 74078 USA

[3] Natl Renewable Energy Lab, Golden, CO 80401 USA

来源：

ENERGY AND BUILDINGS | 2018年 / 169卷

关键词：

COOL ROOFS; SAVINGS;

D O I：

10.1016/j.enbuild.2018.03.054

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The use of radiant technology in attics aims to reduce the radiation component of heat transfer between the attic floor and roof decks, gables, and eaves. Recently, it has been shown that EnergyPlus underestimates the savings using radiant technologies in attic spaces. The aim of this study is to understand why EnergyPlus underestimates the performance of radiant technologies and provide a solution strategy that works within the current capabilities of EnergyPlus. The analysis uses three attic energy models as a baseline for comparison for EnergyPlus. Potential reasons for the discrepancies between the attic specific energy models and EnergyPlus are isolated and individually tested. A solution strategy is proposed using the Energy Management System (EMS) capabilities within EnergyPlus. This solution strategy produces similar results to the other attic specific energy models. This paper shows that the current capabilities of EnergyPlus are sufficient to simulate radiant technologies in attics. The methodology showcased in this paper serves as a guide for engineers and researchers who would like to predict the performance radiant technology in attics using the whole building energy software, EnergyPlus. Published by Elsevier B.V.

引用

页码：69 / 83

页数：15