Cool air loop system

Abstract

A system and method for cooling structures by pulling air underground through corrugated pipe is disclosed. The system allows the air to cool down prior to being pulled back into the structure. The system comprises: a trench located outside the structure; an elongated pipe resting in the trench, having a first end and a second end; a first manifold connected to the first end of the elongated pipe, and a second manifold connected to the second end of the elongated pipe; a first airtight duct connecting the first manifold to the structure, and a second airtight duct connecting the second manifold to the structure; a duct fan coupled to the second set of ducting such that the duct fan causes air to flow through the first airtight duct to the first manifold, then to the elongated pipe, then through the second manifold, then through the second airtight duct back into the structure, thereby cooling the structure due to a naturally cooler temperature of the elongated pipe located in the trench.

What is claimed is: 
     
         1 . A system for cooling the interior of a structure comprising:
 a. a trench located outside the structure;   b. an elongated pipe having a first end and a second end, wherein the first elongated pipe rests in the trench;   c. a first manifold connected to the first end of the elongated pipe, and a second manifold connected to the second end of the first elongated pipe;   d. a first air duct connecting to the first manifold;   e. a second airtight duct connecting the second structure to the second manifold;   f. a duct fan coupled to the second set of ducting such the duct fan causes air to flow through the first airtight duct to the first manifold, then to the elongated pipe, then though the second manifold, then through the second air duct back into the structure, thereby cooling the structure due to a naturally cooler temperature of the elongated pipe located in the trench.   
     
     
         2 . The system of  claim 1 , wherein the first airtight duct is connected to the structure thereby allowing air to be recirculated through the system. 
     
     
         3 . The system of  claim 1 , wherein the trench is at least 5 feet deep. 
     
     
         4 . The system of  claim 1 , wherein the elongated pipe is corrugated. 
     
     
         5 . The system of  claim 1 , further comprising a plurality of lava rocks covering the elongated pipe. 
     
     
         6 . The system of  claim 5 , wherein the lava rocks are 3 inches above the elongated pipe. 
     
     
         7 . The system of  claim 6 , further comprising insulation covering the lava rock. 
     
     
         8 . The system of  claim 7 , wherein the insulation is 2 inches thick and resistant to rodents. 
     
     
         9 . The system of  claim 1 , wherein the trench is backfilled with dirt. 
     
     
         10 . The system of  claim 1 , wherein the trench is at least 30 feet long; 
     
     
         11 . The system of  claim 10 , wherein the elongated pipe is at least 30 feet long. 
     
     
         12 . The system of  claim 1 , further comprising a thermostat coupled to the duct fan thereby allowing temperature to be controlled. 
     
     
         13 . The system of  claim 1 , further comprising a solar electricity system, wherein the duct fan is powered by the solar electricity system. 
     
     
         14 . The system of  claim 1 , further comprising a first rubber coupler and a second rubber coupler, wherein the first rubber coupler couples with the first manifold and the second rubber coupler couples with the second manifold.