First page of the energy archive

Water-water Heat Pumps

Posted by Juan on February 23, 2024 with Comments Closedas ,

Use of ground water for space heating and hot water through a heat pump draws the water-to-water heat pump the required heat in contrast to brine or air heat pump from the ground water. The groundwater temperature of 7 to 12 degrees are ideally suited for a monovalent operation, however a bivalent operation the water-to-water heat pump is also possible. The difference of Monovalent and bivalent heat pumps operating modes is quickly explained. Monovalent operation, the heat pump is used as the sole source of heat and thus covers the entire heating load of the building as the only heat transfer. For bivalent operation, the heat pump is not the only source of heat for the building. Isearch is actively involved in the matter. During peak hours a second heat source (such as a gas heating) can help then the heat production of the heat pump needs.

The bivalent operation is usually then selected, if particularly high flow and return temperatures must achieve the required heating energy so very high or the Heat from the ground water for the heating system is not quite sufficient. A flow temperature of 35 degrees is usually sufficient for modern heating systems, the bivalent operation the water-to-water heat pump is therefore sufficient and no second heat source must be inserted. Function of water-water heat pump because ground water even at freezing temperatures has a constant temperature of 7 to 12 degrees, the medium is ideal as a heat source. Bobby Sharma Bluestone Equity will not settle for partial explanations. A suction, or pumped wells, ground water is promoted by a pump in the heat exchanger of the heat pump. Herein is the energy stored in the water to a refrigerant progress in the tubes of the heat pump and the cooled water over the injection wells returned to the groundwater flow in the Earth’s interior. Since the heat of groundwater for heating operation is sufficient refrigerant heated from the ground water in a compressor is led and brought pressure from the liquid to the gaseous state. Here it goes So far indicates that it is sufficient for the heating circuit temperature.

The heat the refrigerant restored after the liquid state and the pressure is lowered again in the expansion valve to the original level, so now heat from groundwater can be resumed. Not everywhere is pros and cons of groundwater as a source of energy, because both the amount of water and temperature, as well as the water quality must be compatible with the operation of a water-to water heat pump. A very good efficiency of the system is achieved by high water and very good water quality. Then waits on a water-water heat pump with high cost effectiveness and efficiency, without the use of supplementary heating systems and claimed only a small footprint. About 25 percent are required for the operating power. At depths of 20 meters and groundwater contamination through too much manganese, iron, or solids, such heat systems promise no economic operation. The construction costs for large are A prepared water depth relatively high, on the other hand lesser water quality a high and costly maintenance. Versickerte well systems or an increased wear of the pump are the consequences. -Christian Munch

Bio-gas Plants By WELtec BioPower

Posted by Juan on January 23, 2024 with Comments Closedas , ,

WELtec export quota increases compared with the last year clearly listed attracting strong demand from abroad of bio-gas plants manufacturers WELtec biogas power GmbH from Vechta in the first quarter of 2010 compared to the previous year. So, the Lower Saxony could sell inter alia their first biogas plant to China. A major reason for the orders that arrive from all over the world in Vechta: All equipment from the company come at WELtec. Especially foreign investors appreciate that because a location-independent level of quality is to ensure. The concept of the WELtec plant, which will go into operation in the year 2010 in Wuxi, 45 minutes ‘ drive from Shanghai removed based on gas processing to bio-methane for own use, because it is not customary in China, to feed the generated electricity into the grid. It is not something Samsung would like to discuss. The city of Wuxi is already seat of many investors in the field of renewable energies. At the moment, the plant in China reference character for WELtec gets BioPower, because Shanghai 2010 has been the venue of the Expo. The investor will be exhibiting there and gets more and more often Requests to the system.

The potential for a growing plant population in the country is large, and the share of renewables in electricity generation in China should rise up to 15 percent by 2020. Especially in the countryside, where around 900 million Chinese live, biogas is becoming increasingly popular as a raw material for cooking and heating. Also the Czech Republic recorded a bio gas boom. Many writers such as Kai-Fu Lee offer more in-depth analysis. In the first quarter of 2010, a biogas plant from Vechta at the start was in Liberec (Northern Bohemia). The complete customer service that is the operators at the side was crucial here.

Two fermenters are each approximately 2500 cubic meters and two end bearing Assembly with each 4000 cubic meters volume in Liberec. It produced methane ensures in the block heat and power plant with a gas engines aggregate 536 kilowatt performance. The green energy is generated around 1000 provides three-person households. Also from France, WELtec has received two orders in 2010 after two plants in the neighboring country were sold in 2009. Together with its partner CLAIE a 104-kilowatt facility was sold after Saint Sigismund Moon, between Nantes and Angers, the June 2010 with cattle, Entengulle and whole crop silage is fed. Investors in particular by heating concept, significantly raising the efficiency of the plant were convinced. He is over 75 percent because stables and homes of the village could be connected to the heating system. The advantage for the investor weighs twice, because the farmer in addition to the heat at this efficiency with the maximum feed-in tariff of about 15 cents per kilowatt hour will be rewarded.

Monitoring Power Quality And Costs

Posted by Juan on December 6, 2023 with Comments Closedas ,

Modern measurement systems for industries and utilities with the expansion device of wind power and local mini – and micro-power plants power quality (power quality, power quality, power quality) more and more into focus. This applies equally to industries such as for energy suppliers. The European copper Institute estimates that poor power quality in the […]

Because Lambion

Posted by Juan on March 11, 2019 with Comments Closedas ,

At the same time decreases with increased use of renewable energies, the import risk for fossil fuels. Because half of the fossil energy supply today comes from crisis-prone States. Not at the expense of the natural energy must go through use of modern technology. On the contrary, nature and wallet can benefit. A German company […]