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in subjects: "Walls 140901* -- Solar Thermal Utilization-- Space Heating & Cooling"

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Simple empirical method for estimating the performance of a passive solar heated building of the thermal storage wall type

Two methods are presented for estimating the annual solar heating performance of a building utilizing a passive thermal storage wall of the Trombe wall or water wall type with or without night insulation and with or without a reflector. The method is accurate to +-3% as compared with hour-by-hour computer simulations.

Date: January 1, 1978

Creator: Balcomb, J.D. & McFarland, R.D.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Passive solar construction handbook

Many of the basic elements of passive solar design are reviewed. The unique design constraints presented in passive homes are introduced and many of the salient issues influencing design decisions are described briefly. Passive solar construction is described for each passive system type: direct gain, thermal storage wall, attached sunspace, thermal storage roof, and convective loop. For each system type, important design and construction issues are discussed and case studies illustrating desig… more

Date: August 1, 1981

Creator: Levy, E.; Evans, D. & Gardstein, C.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Passive solar space heating

An overview of passive solar space heating is presented indicating trends in design, new developments, performance measures, analytical design aids, and monitored building results.

Date: January 1, 1980

Creator: Balcomb, J. D.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Thermal Control System and Method for a Passive Solar Storage Wall

A system and method are provided for controlling the storing and release of thermal energy from a thermal storage wall wherein said wall is capable of storing thermal energy from insolation. The system and method includes a device such as a plurality of louvers spaced a predetermined distance from the thermal wall for regulating the release of thermal energy from the thermal wall. This regulating device is made from a material which is substantially transparent to the incoming solar radiation s… more

Date: July 10, 1981

Creator: Ortega, Joseph Kenneth Earl

Item Type: Patent

Partner: UNT Libraries Government Documents Department

open access

Los Alamos test-room results

Fourteen Los Alamos test rooms have been operated for several years; this paper covers operation during the winters of 1980-81 and 1981-82. Extensive data have been taken and computer analyzed to determine performance parameters such as efficiency, solar savings fraction, and comfort index. The rooms are directly comparable because each has the same net coefficient and solar collection area and thus the same load collector ratio. Configurations include direct gain, unvented Trombe walls, water … more

Date: January 1, 1982

Creator: McFarland, R.D. & Balcomb, J.D.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Economic analysis of the integrated heating and cooling potential of a residential passive-solar water wall design

The heating potential of residential water wall designs has been analyzed for many years. Because this past work has been confined strictly to heating potential, it has understated the true energy savings potential of water walls. Preliminary performance estimates for the heating and cooling potential of water walls have recently been made available. These estimates include the Btu displacement that is attributable to a 300-square foot water wall design in a 1200-square foot residence. The desi… more

Date: January 1, 1982

Creator: Roach, F.; Mangeng, C.; Kirschner, C. & Ben-David, S.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Passive solar design calculations with the DOE-2 computer program

The DOE-2 computer program has been modified to improve modeling of passive-solar buildings by the addition of the custom weighting-factor method. The thermal-load and air-temperature calculation procedure in DOE-2 are described. Assumptions inherent in the use of American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) precalculated and the custom weighting factors are discussed. Calculated results from DOE-2 are compared with measured heat-extraction rates and air t… more

Date: January 1, 1980

Creator: Kerrisk, J.F.; Moore, J.E.; Schnurr, N.M. & Hunn, B.D.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Passive test cell data for the solar laboratory, Winter 1980-81

Testing was done during the 1980-81 winter in 400 ft/sup 3/ test cells at the Los Alamos National Laboratory Solar Lab. This testing was done primarily to determine the relative efficiency of various passive solar heating concepts and to obtain data that could be used to validate computer simulation programs. The passive solar systems tested were Trombe wall with and without selective absorber, water wall, phase-change wall, direct gain, a heat-pipe collector, and two sunspace geometries. The h… more

Date: May 1, 1982

Creator: McFarland, R.D.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Passive-solar construction handbook

Many of the basic elements of passive solar design are reviewed. Passive solar construction is covered according to system type, each system type discussion including a general discussion of the important design and construction issues which apply to the particular system and case studies illustrating designed and built examples of the system type. The three basic types of passive solar systems discussed are direct gain, thermal storage wall, and attached sunspace. Thermal performance and const… more

Date: February 1, 1981

Creator: Levy, E.; Evans, D. & Gardstein, C.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Economic analysis of a passive solar multiple-family dwelling for upstate New York

The objective of this study was to examine the economic feasibility of passive solar energy as applied to a multiple-family dwelling in three upstate New York cities: Buffalo, Rochester, and Syracuse. Specifically, two passive solar applications - a Trombe wall and a direct-gain system - for a nine-unit structure designed by Total Environmental Action, Inc. were analyzed through the use of a solar economic performance code. City-specific data, including climatological information, building cons… more

Date: February 1, 1982

Creator: Laquatra, J. Jr.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Hybrid space heating/cooling system with Trombe wall, underground venting, and assisted heat pump

Our goal was to design and monitor a hybrid solar system/ground loop which automatically assists the standard, thermostatically controlled home heating/cooling system. The input from the homeowner was limited to normal thermostat operations. During the course of the project it was determined that to effectively gather data and control the various component interactions, a micro-computer based control system would also allow the HVAC system to be optimized by simple changes to software. This fle… more

Date: June 22, 1983

Creator: Shirley, J.W.; James, L.C.; Stevens, S.; Autry, A.N.; Nussbaum, M. & MacQueen, S.V.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Passive solar design handbook

The Passive Solar Design Handbook, Volume Three updates Volume Two by presenting extensive new data on the optimum mix of conservation and solar direct gain, sunspaces, thermal storage walls, and solar radiation. The direct gain, thermal storage wall, and solar radiation data are greatly expanded relative to the Volume 2 coverage. The needed flexibility to analyze a variety of system designs is accommodated by the large number of reference designs to be encompassed - 94 in contrast to 6 in Volu… more

Date: January 1, 1981

Creator: Jones, R.W.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Summertime results from the Class B passive-solar performance-monitoring program

The DOE/SERI Class B passive solar monitoring program is designed to provide, at relatively low cost, accurate and consistent real-time estimates of building thermal performance, as well as detailed data regarding climate, indoor temperatures, and purchased energy needs. As part of this program, a microprocessor-based data acquisition system has been installed in each of ten passive solar houses in the Denver area, primarily to evaluate heating-season performance. During the summer, however, th… more

Date: July 1, 1981

Creator: Swisher, J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Performance analysis of mixed passive solar heating systems

The various situations in which interactions between south-facing systems serving a single thermal zone may affect the performance of the mixture are discussed. In particular, the nature of direct gain interactions with unvented Trombe walls was explored using a detailed thermal network computer program. The results are compared with predictions from the simple design analysis procedures which neglect interactions. This comparison showed that system interactions can significantly improve the pe… more

Date: January 1, 1985

Creator: Wray, W.O. & Best, E.D.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Passive-solar techniques for the mobile/modular housing industry

Using a fairly typical mobile home design, it is shown that state-of-the-art mobile/modular housing and passive solar techniques can be used together. Computer simulations are used to analyze the concept. Size conditions at a mobile home park are considered. Glazing orientation, shading, and thermal storage are included in the analysis. (LEW)

Date: January 31, 1983

Creator: Osborn, D.C.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Thermal performance of the Brookhaven natural thermal storage house

In the Brookhaven natural thermal storage house, an energy-efficient envelope, passive solar collectors, and a variety of energy conservation methods are incorporated. The thermal characteristics of the house during the tested heating season are evaluated. Temperature distributions at different zones are displayed, and the effects of extending heating supply ducts only to the main floor and heating return ducts only from the second floor are discussed. The thermal retrievals from the structure … more

Date: January 1, 1981

Creator: Ghaffari, H.T. & Jones, R.F.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Passive solar economics in 15 northwest locations

The economic performance of Trombe wall and direct gain passive solar heating designs are evaluated using the LASL/UNM solar economic performance code. Both designs are integrated into a ranch style tract home concept thereby facilitating intra-regional comparison. The economic performance of these systems is evaluated for 15 sites in the Northwest region. Space heating loads have been locally specified. System sizes have been optimized against the natural gas and electric resistance heating al… more

Date: August 10, 1979

Creator: Kirschner, C.; Ben-David, S. & Roach, F.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Simple procedure for schematic design of passive solar buildings

A simple procedure for use during the schematic phase of passive solar building design is presented in this article. The procedure is quantitative and accurate enough to insure that designs based on the provided starting point values of the primary building parameters will be cost effective.

Date: January 1, 1984

Creator: Wray, W.O. & Kosiewicz, C.E.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

LASL/UNM solar economic performance code: a basic primer

The LASL/UNM solar economic performance code (model) has been developed to assist in the evaluation of market potential for residential passive solar heating systems on a nationwide basis. Components of the model can be divided into three major categories: inputs, methodology, and output. Each of these categories are briefly described.

Date: January 1, 1979

Creator: Roach, F.; Ben-David, S. & Kirschner, C.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Review of the economics of selected passive and hybrid systems

Performance and economic information on passive and hybrid systems has been compiled as part of the solar commercial readiness activity at the Solar Energy Research Institute. The results of selected performance simulation and cost estimate studies are presented as well as actual cost and performance data from operating buildings. Systems representative of each major passive design concept are included: direct gain, indirect gain (thermal storage wall, thermal storage roof), and isolated gain (… more

Date: January 1, 1979

Creator: Buchanan, D. L.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Passive-solar-retrofit study for the United States Navy

A passive solar retrofit study has been conducted for the United States Navy at the Los Alamos National Laboratory. The purpose of the study was to determine the energy savings obtainable in concrete block buildings from several passive solar heating strategies. A procedure involving the use of test cell data and computer simulation was employed to assess the merits of six retrofit options. The six strategies selected were chosen on the basis of providing a series of options that will deliver i… more

Date: January 1, 1981

Creator: Wray, W.O. & Miles, C.R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Passive-solar retrofit study for the United States Navy

Date: January 1, 1981

Creator: Wray, W.O. & Miles, C.R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Design and construction of a demonstration residence utilizing natural thermal storage

The Brookhaven House is an energy conserving residence which demonstrates how thermal mass combined with solar energy can be used to reduce heating costs in a conventional single-family house. The purpose of the project was to develop a prototypical house design that could result in immediate energy savings by being an acceptable, attractive design to developers, builders, and home buyers. Investigations were limited to only materials and methods of construction that were considered presently a… more

Date: January 1, 1981

Creator: Jones, R.F. & Ghaffari, H.T.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Comparative economics of passive and active systems: residential space heating applications

The economic performance of alternative designs are evaluated. One passive design is emphasized, the thermal mass storage wall. The economic performance of this design is examined and subsequently contrasted with one active design, the air collector/rock storage system. Architectural design criteria, solar performance characteristics, and the incremental solar cost of each design is briefly reviewed. Projections of conventional energy prices are discussed, along with the optimal sizing/feasibil… more

Date: January 1, 1978

Creator: Roach, F.; Noll, S. & Ben-David, S.

Item Type: Article

Partner: UNT Libraries Government Documents Department