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Title: Analysis of Energy, Environmental and Life Cycle Cost Reduction Potential of Ground Source Heat Pump (GSHP) in Hot and Humid Climate

Analysis of Energy, Environmental and Life Cycle Cost Reduction Potential of Ground Source Heat Pump (GSHP) in Hot and Humid Climate It has been widely recognized that the energy saving benefits of GSHP systems are best realized in the northern and central regions where heating needs are dominant or both heating and cooling loads are comparable. For hot and humid climate such as in the states of FL, LA, TX, southern AL, MS, GA, NC and SC, buildings have much larger cooling needs than heating needs. The Hybrid GSHP (HGSHP) systems therefore have been developed and installed in some locations of those states, which use additional heat sinks (such as cooling tower, domestic water heating systems) to reject excess heat. Despite the development of HGSHP the comprehensive analysis of their benefits and barriers for wide application has been limited and often yields non-conclusive results. In general, GSHP/HGSHP systems often have higher initial costs than conventional systems making short-term economics unattractive. Addressing these technical and financial barriers call for additional evaluation of innovative utility programs, incentives and delivery approaches. From scientific and technical point of view, the potential for wide applications of GSHP especially HGSHP in hot and humid climate is significant, especially towards building zero energy homes where the combined energy efficient GSHP and abundant solar energy production in hot climate more » can be an optimal solution. To address these challenges, this report presents gathering and analyzing data on the costs and benefits of GSHP/HGSHP systems utilized in southern states using a representative sample of building applications. The report outlines the detailed analysis to conclude that the application of GSHP in Florida (and hot and humid climate in general) shows a good potential. « less
Authors: ;
Publication Date:
OSTI Identifier:1039050
Report Number(s):10EE0002802
TRN: US201215%%345
DOE Contract Number:EE0002802
Resource Type:Technical Report
Research Org:Florida International University/University of North Texas
Sponsoring Org:USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:United States
Language:English
Subject: 14 SOLAR ENERGY; 15 GEOTHERMAL ENERGY; CLIMATES; COOLING LOAD; COOLING TOWERS; ECONOMICS; EVALUATION; GROUND SOURCE HEAT PUMPS; HEAT SINKS; HEATING; LIFE-CYCLE COST; PRODUCTION; SOLAR ENERGY; WATER HEATING Geothermal Heat Pump; Hot and Humid Climate