Heat pumps and electric heating

Buku lama

Heat pump technology

Buku lama

Pump:operation and maintenance

Buku lama

Automatic solar powered water pumping using zigbee technology

Edisi

Vol. 4

ISBN/ISSN

2250-2459

Deskripsi Fisik

-

Judul Seri

-

No. Panggil

-

Solar powered water pumping systems

Edisi

Vol. 3

ISBN/ISSN

1312-1723

Deskripsi Fisik

-

Judul Seri

-

No. Panggil

-

Geothermal energy use in Germany

Edisi

-

ISBN/ISSN

-

Deskripsi Fisik

-

Judul Seri

-

No. Panggil

620 SCH g

Larger geothermal heat pump plants in the central region of Germany

In recent years, several larger geothermal heat pump plants for offices or commercial areas have been designed and built in the central region of Germany, mainly in the Rhein-Main area. Systems with borehole heat exchangers (BHE; in the USA the term Vertical Loop is commonly used) as well as with shallow geothermal doublets (groundwater wells) are operational. New solutions had to be found to a…

World-wide direct uses of geothermal energy 2005

The worldwide application of geothermal energy for direct utilization is reviewed. This paper attempts to update the previous survey carried out in 1995 (Freeston, 1995) and presented at the World Geothermal Congress 1995 in Florence, Italy. For each of these updates since 1975, the recording of data has been similar, but not exactly the same. As in 1995, an effort was made to quantify geotherm…

Finite line-source model for boreholes in geothermal heat exchangers (A)

An analytical solution of the transient temperature response in a semi-infinite medium with a line source of finite length has been derived, which is a more appropriate model for boreholes in geothermal heat exchangers, especially for their long-duration operation. The steady-state temperature distribution has also been obtained as a limit of this solution. An erratic approach to this problem t…

Direct utilization of gheotermal energy 2010 worlwide review

This paper presents a review of the worldwide application of geothermal energy for direct utilization, and updates the previous survey carried out in 2005. We also compare data from 1995 and 2000 presented at World Geothermal Congresses in Italy and Japan, respectively (WGC95 and WGC2000). As in previous reports, an effort is made to quantify ground-source (geothermal) heat pump data. The prese…