ENERGY SYSTEMS
large amounts of power, while reusing as much heat as possible. A common reason for poor CHP efficiency is that the CHP engine is not sized correctly for the application. If the unit is too small, it won’t provide the full cost savings, because it can’t generate sufficient power to meet demand. However, if the unit is too large it will struggle to meet its minimum load threshold to operate efficiently. By partnering with an experienced CHP provider and design consultancy, hospitals can be confident that the CHP is sized to meet the base load, which is defined as the minimum level of demand for energy and heat over a given timeframe. A scoping or feasibility assessment can determine the hospital’s energy profiles, its heat-to-power ratio, and general consumption, so that management and procurement teams can provide the information needed to equipment suppliers and design teams. Experienced providers will also know the ‘ins and outs’ of the Health Technical Memoranda (HTM) requirements, to ensure compliance.
Regular maintenance Following installation, regular maintenance ensures that the system stays at the top of its game. Simple issues like a lack of lube in the generator’s engine can raise temperatures, reduce
Scott Tamplin and Finning UK&I
Scott Tamplin is a Sales manager for Diesel and Gas Products at Finning UK & Ireland. Having previously worked at the likes of AMP Clean Energy and Barden Energy, he has nearly two decades of experience working with natural gas and cogeneration systems under his belt. Over the years, he has helped to devise strategies on renewables, and has developed new sales and projects for commercial, industrial, public sector, and leisure facilities. Having joined Finning in November 2020, he plays a key role in developing Caterpillar’s combined heat and power (CHP), low carbon, and renewable energy and storage solutions. Now based in Staffordshire, his role is central to the company’s Energy and Transportation (E&T) division. His responsibilities include liaising with customers, and recommending Cat CHPs, low carbon, energy storage, and renewable energy solutions, that will deliver optimal power and efficiency for their sites.
Finning UK & Ireland is part of Finning International – the world’s largest dealer of Cat machines, engines, equipment, and power solutions. Finning has a recognised track record in delivering solutions to a diverse range of industries, including mining, quarrying, building and construction, marine, power generation, industrial OEM, and oil and gas.
efficiency, and increase the risk of unplanned downtime. It is important to check the reciprocating genset and CHP ancillaries for any irregularities, part wear, or resistance. As part of a servicing schedule, operators should also monitor fluid samples to check for contaminants. Oil, coolant, and fuel samples can be sent to a laboratory for analysis, to identify irregularities so that they can be rectified
before they cause problems in the system. With the NHS setting itself the ambitious target of being the world’s first carbon-neutral healthcare system, hospitals and Trusts must consider how sustainable their power supply is. By generating heat and power together, CHP provides a solution that is cost-effective, efficient, and environmentally beneficial – just what the doctor ordered.
hej
October 2021 Health Estate Journal 45
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