New energy “Geothermal heat pump system” and groundwater flow system

Modeling Convective Heat Transfer in a Geothermal Heat Pump System

Energy efficiency model for small/medium geothermal heat pump systems

Heating application efficiency is a crucial point for saving energy and reducing greenhouse gas emissions. Today, EU legal framework conditions clearly define how heating systems should perform, how buildings should be designed in an energy efficient manner and how renewable energy sources should be used. Using heat pumps (HP) as an alternative “Renewable Energy System” could be one solution fo...

Scaling in Geothermal Heat Pump Systems

INTRODUCTION Water quality is a frequently overlooked issue in the application of geothermal heat pump (GHP) systems. When considered at all, is often viewed as a problem unique to open loop systems. In residential open loop applications water is supplied directly to the heat pump’s refrigerant-to-water heat exchanger. If the water has a tendency to be scale forming, fouling of the heat exchang...

Optimal Power Consumption in a Central Heating System with Geothermal Heat Pump

A ground source heat pump connected to a domestic hydronic heating network is studied to be driven with the minimum electric power. The hypothesis is to decrease the forward temperature to the extent that one of the hydronic heaters work at full capacity. A less forward temperature would result in a dramatic temperature drop in the room with saturated actuator. The optimization hypothesis is in...

Comparative Energy Performance between a Geothermal Heat Pump System and an Air-to-water Heat Pump System for Heating and Cooling in Typical Conditions of the European Mediterranean Coast

Ground Coupled Heat Pump (GCHP) is a well-known technology that has been used for over 50 years. However its market penetration, in particular in Europe, is still small. In those European countries in which GCHP are most popular, climatic conditions are such that by far most of the demand is for space heating, whereas air conditioning is rarely required. Therefore experience with GCHP in Europe...