Case Study: London Energy

Res POWERTHERM CONTRACT SERVICES LTD www.powertherm.co.uk Case Study: London London Energy Energy Here we take a look at one of our successful case studies involving London Energy EFW, London. PROJECT OUTCOME PROJECT The successful design, supply, install and test of a trace heating system. The ash produced from incineration now remains above the dew point temperature, and as a result not solidifying within the hoppers, eradicating operational issues. OUTCOME PROJECT RATIONALE The plant was experiencing detrimental operational issues, where ash created from burning waste was solidifying in the hoppers. PROJECT DETAILS Contract Type: Industry: Power generation (renewable energy) CONTRACT Installation Services: Workforce: Trace heating 2 people Length of Cable: 860 metres Area Applied: Non-hazardous SCOPE OF SERVICES The ash created from burning waste at the plant collects within the hoppers. However, because the ash had been allowed to cool, it started to solidify, causing it to clog up. As a result, the energy from waste plant experienced detrimental operational issues. <130°C A S S h 130 C 130°C 130°C 130°C The trace heating system was 130°C 130°C 130°C 130°C to be installed within a non-hazardous area on 20 hoppers. It was set to maintain a surface temperature of 130-C, which falls above the dew point of ash, thus preventing it from solidifying, eradicating the operational issues. 130°C 130°C 130°C 130 C 130°C 130°C 130°C 130°C 130°C 130°C 130°C 130°C The system was installed 1m from the base of the hopper attached to a wire mesh structure. A continuous run of mineral insulated heating cable feeds around the hopper from its own individual junction box. The temperature is monitored using surface-sensing RTD's connected to a control panel. If the temperature drops, the control box sends a signal back to the panel to turn on the circuit and energise the trace heating element. The system will also switch off if the desired temperature of 130'C is exceeded. Consequently, the ash within the hoppers will remain above its dew point, preventing it from solidifying. SITE DETAILS The plant's estimated power output generates enough power for 80,000 homes and businesses throughout the year. 80,000 НОMES Since the plant first became operational, it's diverted 10 million tonnes of waste from landfill. 10 MILLION TONNES POWERTHERM TRACE HEATING Powertherm Contract Services is a multidisciplinary industrial service provider with 30 years of experience, offering a range of industry-renowned services across the UK. For more details on trace heating please visit www.powertherm.co.uk/services/trace-heating POWERTHERM CS CONTRACT SERVICES LTD nqa. nga. nga. ISO 9001 ISO 14001 ISO 45001 HEALTH & SAFETY MANAGEMENT ENVIRONMENTAL QUALITY MANAGEMENT MANAGEMENT +44 (0) 114 288 9119 [email protected] www.powertherm.co.uk Francis House, Orgreave Drive, Handsworth, Sheffield, S13 9NR