Flowery Branch, Georgia – ElectraTherm, a leader in distributed, waste heat to power generation, announces the start up of its first POWER+ GENERATOR 4400B at a biomass site in the United Kingdom. The POWER+ GENERATOR 4400B is using BITZER’s proven expander technology (see a video on the technology here) with patented and patent pending lubrication and bearing schemes. The 4400B offers a generating capacity of up to 75kW. The new semi-hermetic expander plus generator design allows for improved efficiency and greater thermal utilization across a wider range of hot water temperatures. ElectraTherm also offers the 6500B which generates up to 125kW.
Novalux Energy Solutions, ElectraTherm’s installation partner in the UK, installed a 1.25MWth biomass boiler and 4400B Power+ with the new BITZER expander at a poultry farm in the UK to supply power and heat to the site. The site is set up to use the heat in both the new poultry sheds as well as on a drying floor used for drying crops. Novalux commented that, “The differences between the old expander and the new expander are noticed almost immediately. Upon initial start-up, it is significantly quieter, and we’ve already observed an increase in efficiency. In addition, the improved reliability is something we can look forward to for many years to come.”
One major advantage of the BITZER hardware integration is a semi-hermetic design which couples the expander and generator as one assembly. This results in no shaft seal between the expander and generator, greatly enhancing reliability. In addition, the BITZER expander eliminates the drive belt or coupler used in previous models, further reducing maintenance costs.
ElectraTherm’s distributed power generation units use low-temperature waste heat streams which had little value until now, on applications such as stationary engines, biomass, geothermal, flare elimination, wastewater treatment plants, and more. The POWER+ GENERATOR is easily transported, installed and operated with a small footprint, and comes fully-packaged.
Today, POWER+ GENERATORS operate around the globe with more than 100 units shipped, and a fleet runtime exceeding 1.5 million hours in various applications. For more information, please visit the website at www.electratherm.com.
What is an Organic Rankine Cycle?
An Organic Rankine Cycle (ORC) uses a working fluid that has a boiling point less than that of water to convert low-temperature heat into mechanical work. The mechanical work that is generated can then be converted into electricity to supplement local loads or exported to the grid. To learn more about ORC’s and how they can benefit your applications, please visit https://electratherm.com/orc-knowledge-center-2/organic-rankine-cycle-basics.
About ElectraTherm, Inc.
ElectraTherm, Inc. by BITZER Group, focuses on waste heat to power and is headquartered in the USA. ElectraTherm generates fuel-free, emission-free power from low temperature waste heat using the Organic Rankine Cycle (ORC) and patented technology. For more information on ElectraTherm and its clean energy products, please visit www.electratherm.com.
BITZER is an internationally leading specialist for refrigeration and air-conditioning technology with activities in refrigeration, air-conditioning and process cooling, transport as well as services. With energy-efficient, environmentally friendly and high-quality products and services, the BITZER Group improves the quality of life of people worldwide; for example, through the cooling of temperature-sensitive goods and reliable indoor temperature control. With 65 sites in 34 countries and 3,500 employees , BITZER generated a turnover of €740 million in 2018. Expenditure for research and development totaled €37 million. To learn more about BITZER and its advanced refrigeration and air conditioning technologies, visit www.bitzer.de.