Methods of Modifying Surface Coverings to Embed Conduits Therein

Abstract

Methods of modifying surface coverings to embed conduits therein to collect solar heat energy including grinding away a portion of the surface covering, installing a network of conduits in the recess and filling the recess to cover the conduits with a material capable of transferring heat from solar radiation to the conduits and a method for modifying a surface covering to embed conduits therein to collect solar heat energy including softening the surface covering, forming a channel in the softened surface covering, pressing a conduit into the channel and filling the channel with thermal conductive material to cover the conduit.

Description

CROSS-REFERENCE TO RELATED PATENT APPLICATION[0001]This application claims priority from prior provisional patent application Ser. No. 61 / 138,143 filed Dec. 17, 2008, the entire disclosure of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention pertains to obtaining and using power / energy from man-made structures including manufactured (paved) surfaces and, more particularly, modifying pre-existing surface coverings to create power / energy in the form of heat obtained from solar radiation for use in the operation of energy conversion equipment, such as chillers, hot water supplies, heat pumps, organic Rankine cycle engines for mechanically generating electricity, water purification and distillation for buildings and / or other facilities.[0004]2. Brief Discussion of the Related Art[0005]Surfaces and structures are heated by solar radiation during the course of a typical sunny day. A typical asphalt or concrete s...

AI Technical Summary

Benefits of technology

The present invention is a system for using modified surface coverings to collect solar heat energy. The systems can use embedded thermally conductive materials or fluid carrying pipes / conduits in pavement or structures to transfer heat for multiple uses. The heat can be used to produce energy, cooling, or for other practical applications. The system can also be combined with other energy sources, such as geothermal or photovoltaic, to increase efficiency. The invention also includes a method for modifying existing surface coverings to embedded conduits for collecting solar heat energy. Overall, the invention provides a way to utilize solar energy for practical applications and reduces reliance on dirty power.

Problems solved by technology

A typical asphalt or concrete surface has good heat-absorbing properties, and the heat energy from such structures is normally wasted and not utilized to its potential.

In recent years, it has become increasingly evident that fossil fuels used to generate energy are finite and that their use is harmful to the environment.

Asphalt, concrete, bituminous roofs and other hard-paved surfaces absorb heat making it unpleasant to walk on a sidewalk in hot weather and increasing the strain on the air conditioning systems of buildings.

Since hot air rises, the hot air traps airborne pollutants, such as auto exhaust, close to the ground adding to complications for pedestrians.

The EPA states that these elevated temperatures from urban heat islands, particularly during the summer, can affect a community's environment and quality of life; the majority negative.

Peak electricity demand, instigated by the urban heat island, inevitably occurs on hot summer weekday afternoons when offices and homes are running cooling systems, lights, and appliances.

The resulting demand for cooling can overload systems and require a utility to institute controlled, rolling brownouts or blackouts to avoid power outages.

Increasing energy demand generally results in greater emissions of air pollutants and greenhouse gas emissions from power plants.

Increased daytime temperatures, reduced nighttime cooling, and higher air pollution levels associated with urban heat islands can affect human health by contributing to respiratory difficulties, heat exhaustion, non-fatal heat stroke, and heat-related mortality.

Excessive heat events, or abrupt and dramatic temperature increases, are particularly dangerous and can result in above-average rates of mortality.

The Centers for Disease Control and Prevention estimates that from 1979-2003, excessive heat exposure contributed to more than 8,000 premature deaths in the United States.

High pavement and rooftop surface temperatures can heat storm-water runoff.

Rapid temperature changes in aquatic ecosystems resulting from warm storm-water runoff can be particularly stressful, even fatal, to aquatic life.

These experiments have been motivated, in large part, by a concern that gases emitted by internal combustion engines could harm humans by adversely affecting their environment.

Images