LoadTracker CHP Systems
(See above, far left illustration) Expected usage patterns at community centres are taken into account with CHP assessments, as partial usage and weekend closure would be the norm. The 15G LoadTracker CHP unit needs a minimum annual electrical load of 60,000 kWh and 120,000 kWh thermal load. Most community centre projects involving SAV have been specified with either 1 x 15G or 2 x 15G units.
The 15G usually acts as lead boiler, and sometimes provides a high (>80%) of site thermal load. In such a case, specific piping arrangements are recommended to ensure smooth operational interfacing with the back-up boiler. SAV is geared up to advise on the optimizing of schematic drawings, both by providing typical sketches and by offering feedback on first drafts.
Other Heat and Power System Applications:
Energy meters and associated monitoring help to meet the requirements of CIBSE TM39 (Energy sub-metering in buildings). Simple, robust, ultrasonic energy meters maintain accuracy of measurement over prolonged service, and provide the raw data for inclusion in Building Log Books as referred to under Part L of Building Regulations.
Water and heating manifolds can be supplied mounted on a backplate for ease of installation (see above, centre right illustration). This shows a 6-port assembly with actuated 2-port valves, wired up to a local terminal block. Full bore bypass and isolators between flow/return main manifolds enable pre-commissioning flush, which can be done both in normal flow direction as well as by back-flush. A strainer and ball-valve unit allows easy removal of debris.
Flow measurement points are included to assist with commissioning. Large numbers of connections can be made securely in a shop-controlled environment, allowing site teams to reduce installation cost and make rapid progress.
For more information about the application of CHP power units and combined heating and power systems for community centres, contact SAV Systems.