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SUMMARYFor optimum design of borehole thermal energy storage (BTES) and ground sources heat pump (GSHP) applications, determination of underground thermal properties is required. The design and economic feasibility (number and depth of boreholes) of these systems need thermal conductivity of geological structure, l ðW m À1 K À1 Þ; and thermal resistance of ground heat exchanger, R ðK W À1 mÞ: Thermal properties measured in laboratory experiments do not coincide with data of in situ conditions. Therefore, in situ thermal response test equipment has been developed and used in Canada, England, Germany, Norway, U.K., U.S.A. and Sweden to ensure precise designing of BTES systems. This paper describes the results and evaluations of the Adana continual thermal response test measurements.

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The aim of this study is to determine the heating and cooling potential of the greenhouses in the Mediterranean climatic zone, with aquifer thermal energy storage (ATES) known as one of the underground thermal energy storage application systems (UTES). In recent years greenhouse production reached to 44.000 ha in Turkey (Abak et all 1995). For high yield and quality in greenhouse crops during the winter months, inside temperature should be maintained at the critical value that can change depending on the species grown in greenhouse. For instance, for tomatoes the critical inside temperature should be maintained not below 12-13 0 C in the greenhouse. Due to this information and also last 20 year's climate data in Mediterranean Region a greenhouse needs approximately 150 kW heating load during 90 days in a year, 8 hours in a day (Abak et all.1995). To provide this heating load, 6L/m 2 No 6 Fuel-Oil or 9kg/m 2 coal must be consumed. The fossil fuel consumption leads to an economic burden in the operating cost, besides ashes and undesirable gas emissions from coal combustion are the biggest barriers of the greenhouses in the Mediterranean zone. Additionally, the cooling requirement of the greenhouses for early autumn and spring months in the Mediterranean Climate and the advantages provided after cooling applications will be calculated.For these purposes, two separate greenhouses, each having an area of 360 m 2