Design, construction, and testing of the Colorado State University Solar House I heating and cooling system. United States special format report

This paper reports on the development of a conceptual design, construction and instrumentation of an experimental facility that can be used to carry out experimental research towards increasing energy efficiency in buildings. The overarching idea is to construct a system that emulates the scaled dimensions and materials of a typical building structure. The sub-scale testbed consists of a two-floor building configuration with dimensions of 1.2 m × 0.92 m × 1.1 m. The building structure is made out of wood, and covered with drywall and fiberglass insulation. Fixed walls are selected for the first floor whereas movable walls are incorporated into the second floor to study the effects of different room configurations. Four staircase openings enable airflow between the two floors. The second floor has a tiled-style ceiling and removable walls that allow for connectivity of sensors and actuators. A set of heating and cooling sub-systems, consisting of light bulbs and thermoelectric coolers connected to fans, are used for each room in the building. Both the set of light bulbs as well as the cooling system are powered through a relay box, and connected to a computer via LabVIEW which also interfaces the different sensing and actuating devices. The capabilities of the experimental facility are tested by implementing time-dependent heating- and cooling-processes and an on-off control strategy on a two-room prototype. Preliminary results demonstrate that the experimental testbed offers a reliable and versatile experimental system for research purposes.

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An Analytic Model of Stratification for Liquid-Based Solar Systems

Journal of Solar Energy Engineering ◽

10.1115/1.3268075 ◽

1986 ◽

Vol 108 (2) ◽

pp. 105-110 ◽

Cited By ~ 5

Author(s):

K. DenBraven

Keyword(s):

Temperature Distribution ◽

Storage Temperature ◽

Direct Calculation ◽

Hot Water ◽

Forced Flow ◽

State University ◽

Colorado State University ◽

Liquid Storage ◽

System Data ◽

Solar House

Accurate modelling of solar air or liquid heating, cooling, or domestic hot water systems with storage generally requires an accounting of the stratification within such storage. Overall system performance may be significantly affected by the storage temperature distribution. Most current stratification models utilize a finite difference scheme for solution to the general equations. An analytic method to determine the temperature distribution has been derived for liquid storage within a solar system. In liquid storage, it is assumed incoming fluid enters at the location with the temperature closest to its own. Hence, the solution requires the possibility of a region within storage where there is no forced flow. In addition, ther may be collector loop flow, load loop flow, or both concurrently. Each of these cases has different boundary conditions, and each must be solved separately. Comparisons of the resulting calculations with system data for the Colorado State University Solar House I show good agreement. This suggests that inclusion of an analytic stratification model within a system simulation may be useful by allowing direct calculation of temperatures in stratified storage.

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Design, construction, and testing of a residential solar heating and cooling system. Progress report, 1 September 1973--31 January 1974

10.2172/5043192 ◽

1974 ◽

Author(s):

G.O.G. Lof ◽

D.S. Ward

Keyword(s):

Cooling System ◽

Progress Report ◽

Solar Heating ◽

Heating And Cooling ◽

Design Construction

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CSU Solar House III. Solar heating and cooling system performance. Progress report, 1 October 1978-31 May 1979

10.2172/5746622 ◽

1979 ◽

Author(s):

D Ward ◽

H Oberoi

Keyword(s):

System Performance ◽

Cooling System ◽

Progress Report ◽

Solar Heating ◽

Heating And Cooling ◽

Solar House

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Book Reviews

Journal of Economic Literature ◽

10.1257/jel.53.4.1017.r8 ◽

2015 ◽

Vol 53 (4) ◽

pp. 1029-1031

Keyword(s):

United States ◽

Environmental Sustainability ◽

The United States ◽

University Of California ◽

State University ◽

Colorado State University ◽

Good People ◽

The Earth ◽

Global Environmental

Greg C. Wright of University of California, Merced reviews “How Many Is Too Many? The Progressive Argument for Reducing Immigration into the United States”, by Philip Cafaro. The Econlit abstract of this book begins: “Considers the question of annually limiting the number of immigrants allowed in the United States and presents a progressive argument for limiting the amount. Discusses good people, hard choices, and an inescapable question; immigration by the numbers; the wages of mass immigration; winners and losers; growth, or what an economy is for; population matters; the environmentalists' retreat from demography; defusing America's population bomb—or cooking the earth; solutions; and objections. Cafaro is Professor of Philosophy and an affiliated faculty member in the School of Global Environmental Sustainability at Colorado State University.”

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