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Bailey Street

Remeha mini CHP most efficient and effective solution for Sheffield student housing scheme

A Remeha mini Combined Heat and Power (CHP) unit has been installed by Torsion Engineering Services with main contractor Torsion Group at Sheffield’s Bailey Street student accommodation as the most energy-efficient solution to hot water provision.

BREEAM accredited Bailey Street is UNINN Student Accommodation’s first project in Sheffield. The stylish, high-end development provides 220 rooms over eight floors with individual en-suite bathroom, living and cooking facilities, and shared spaces including a gym, entertainment area, library and a communal laundry.

Student accommodation buildings like Bailey Street have high, continuous demands for heat and electricity. Selecting the appropriate heating technology to comply with Part L of Building Regulations and achieve excellent energy performance for lower running costs was therefore essential.

Engineering specialists Torsion Engineering Services specified Remeha’s new R-Gen SenerTech Dachs Gen 2 mini CHP unit as the most efficient and economical solution to meet the hot water requirements at Bailey Street.

By converting gas into both electricity and heat in a single process at the point of use, CHP operates at higher efficiency levels than traditional generation. In this way, it reduces total primary energy use and lowers associated emissions and energy costs.

Leon Grant, Contracts Manager at Torsion Engineering Services, said: “As this project was BREEAM ‘Very Good’ accredited, early in our design process we identified energy efficiency as key to satisfy the constant demand for hot water while reducing energy consumption.

“We explored various renewable options, working closely with the Project Architect to suit their building design and plant constraints through the feasibility and early design stages. For this type of building and its demand, using a CHP unit was deemed to be the most suitable option.

“We specified the Remeha Dachs Gen 2 CHP as this modular unit is engineered to match demand accurately. It also holds an ErP energy rating of A+++, the most efficient ErP product performance rating under the ErP Directive.”

With a thermal output of up to 14.7kW and an electrical output of 5.5kW, the Remeha Dachs is perfectly suited for use in apartment buildings, hotels and student accommodation schemes like Bailey Street. The one-cylinder four-stroke engine has a capacity of 580 cm³ and is designed to achieve maximum reliability with minimal maintenance intervention. Service intervals are at least every 7,000 running hours between services reducing the running costs whilst improving the payback period for the client.

The CHP unit is controlled according to the heat demand, while the internal microprocessor controller tracks the electrical output to match the thermal output.

“Remeha’s dedicated CHP team have provided knowledgeable technical advice and support at every step of the project,” added Leon. “We’ve been so impressed by the excellent service that we have received that we have already placed an order for our next project.”

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