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Title: Simulation model for the performance analysis of roof pond systems for heating and cooling

Abstract

A detailed computer model has been developed for simulating the dynamic thermal behavior of roof pond systems. The model is composed of outer movable insulation, an optional evaporative water layer over water bags on steel decking, and an inner movable insulation. A control strategy for the movable insulations which provides near optimum thermal performance is included in the model. An hourly thermal balance analysis of the system is performed using theoretical and/or empirical expressions to determine the heat transfer coefficients for each of the surfaces in the model. The model has been used to study the effect on system thermal performance of (1) the R-value of both the top and bottom movable insulations; (2) the depth of the pond water, and (3) the depth of the evaporative layer. The heating and cooling potentials of the roof pond have also been investigated in four climates. The model was developed for incorporation into the public domain building energy analysis computer program BLAST.

Authors:
; ; ;
Publication Date:
Research Org.:
California Univ., Berkeley (USA). Lawrence Berkeley Lab.; Abadan Inst. of Tech. (Iran); California State Univ., Humboldt, Arcata (USA). Dept. of Chemistry
OSTI Identifier:
5320725
Report Number(s):
LBL-9292(Rev.); CONF-800604-34(Rev.)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: American section of the International Solar Energy Society conference, Phoenix, AZ, USA, 2 Jun 1980
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; BUILDINGS; ROOF PONDS; MATHEMATICAL MODELS; COMPUTER CALCULATIONS; COMPUTERIZED SIMULATION; CONTROL SYSTEMS; PASSIVE SOLAR COOLING SYSTEMS; PASSIVE SOLAR HEATING SYSTEMS; PERFORMANCE; THERMAL INSULATION; EQUIPMENT; HEATING SYSTEMS; PONDS; SIMULATION; SOLAR COLLECTORS; SOLAR COOLING SYSTEMS; SOLAR EQUIPMENT; SOLAR HEATING SYSTEMS; SOLAR PONDS; 140901* - Solar Thermal Utilization- Space Heating & Cooling

Citation Formats

Tavana, M, Kammerud, R, Akbari, H, and Borgers, T. Simulation model for the performance analysis of roof pond systems for heating and cooling. United States: N. p., 1980. Web.
Tavana, M, Kammerud, R, Akbari, H, & Borgers, T. Simulation model for the performance analysis of roof pond systems for heating and cooling. United States.
Tavana, M, Kammerud, R, Akbari, H, and Borgers, T. 1980. "Simulation model for the performance analysis of roof pond systems for heating and cooling". United States.
@article{osti_5320725,
title = {Simulation model for the performance analysis of roof pond systems for heating and cooling},
author = {Tavana, M and Kammerud, R and Akbari, H and Borgers, T},
abstractNote = {A detailed computer model has been developed for simulating the dynamic thermal behavior of roof pond systems. The model is composed of outer movable insulation, an optional evaporative water layer over water bags on steel decking, and an inner movable insulation. A control strategy for the movable insulations which provides near optimum thermal performance is included in the model. An hourly thermal balance analysis of the system is performed using theoretical and/or empirical expressions to determine the heat transfer coefficients for each of the surfaces in the model. The model has been used to study the effect on system thermal performance of (1) the R-value of both the top and bottom movable insulations; (2) the depth of the pond water, and (3) the depth of the evaporative layer. The heating and cooling potentials of the roof pond have also been investigated in four climates. The model was developed for incorporation into the public domain building energy analysis computer program BLAST.},
doi = {},
url = {https://www.osti.gov/biblio/5320725}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jun 01 00:00:00 EDT 1980},
month = {Sun Jun 01 00:00:00 EDT 1980}
}

Conference:
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